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Journal articles on the topic 'MVR'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hassan, Mohammed, Yongjie Miao, Joy Lincoln, and Marco Ricci. "Cost-Benefit Analysis of Robotic versus Nonrobotic Minimally Invasive Mitral Valve Surgery." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 10, no. 2 (2015): 90–95. http://dx.doi.org/10.1097/imi.0000000000000136.

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Objective To date, a direct comparison of minimally invasive mitral valve repair or replacement (mini-MVR) versus robotic MVR is lacking; therefore, the purpose of this study was to address this deficit and compare mini-MVR with robotic MVR from a cost-benefit perspective. Methods From a total of 759 literature citations, 21 studies were included for statistical comparisons of benefit outcomes, whereas 3 studies and our institutional experience were used to compare costs. Results The total cost per case exceeding that of conventional MVR is approximately $2063.90 for robotic MVR and $271 for m

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Hadi, Nizar Jawad, and Dhey Jawad Mohamed. "Study the Relation between Flow, Thermal and Mechanical Properties of Waste Polypropylene Filled Silica Nanoparticles." Key Engineering Materials 724 (December 2016): 28–38. http://dx.doi.org/10.4028/www.scientific.net/kem.724.28.

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This paper investigates the flow, thermal and mechanical properties of waste polypropylene (WPP) reinforced with silica (SiO2) nanoparticles (NPs). Recently the researches prove that the addition of NPs to the thermoplastic polymer produces significant change in its properties. SiO2 NPs of 0.001, 0.003, 0.006, 0.009, 0.012 and 0.015wt% were mixed with the WPP using twin screw extruder. The mixing process performed at 10 rpm and 190°C. The topography and particle size distribution of 0.001, 0.006 and 0.015 of SiO2 NPs concentrations samples are analyzed using atomic force microscopy (AFM). The

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Loup, Guillaume, Sébastien George, Iza Marfisi, and Audrey Serna. "A Visual Programming Tool to Design Mixed and Virtual Reality Interactions." International Journal of Virtual Reality 18, no. 2 (2018): 19–29. http://dx.doi.org/10.20870/ijvr.2018.18.2.2904.

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Mixed and Virtual Reality (MVR) devices are now more accessible. However, developing MVR applications is still complex for the majority of developers, because it requires specific expertise. For the past few years, several packaged solutions offered to assist developers who are non-MVR experts. These solutions rarely offer full freedom to create specific interactions adapted to the context. We therefore propose a new MVR tool named MIREDGE (MIxed and virtual REality Development tool for Game Engine). Its interface allows visual programming of MVR interactions. This solution aims at allowing de

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Elnagar, Ismail M., Rawan Alghamdi, Murtadha H. Alawami, et al. "Long-Term Outcomes of Mitral Valve Repair Versus Replacement in Patients with Ischemic Mitral Regurgitation: A Retrospective Propensity-Matched Analysis." Journal of Cardiovascular Development and Disease 12, no. 4 (2025): 109. https://doi.org/10.3390/jcdd12040109.

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Background: The optimal surgical management of ischemic mitral regurgitation (IMR)—mitral valve repair (MVr) versus mitral valve replacement (MVR)—remains controversial, with limited evidence on long-term outcomes. This study aimed to compare the outcomes of MVr and MVR in patients with IMR, focusing on survival and recurrence of mitral regurgitation. Additionally, survival was compared based on preoperative characteristics. Methods: A retrospective cohort analysis was conducted at a tertiary referral center and included 759 patients who underwent surgery for IMR between 2009 and 2021. Propens

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EL Adel, Mohamed, Mohammed Mahmoud Mostafa, Ahmed Ghoneim, and Mohamed Abdelkader Osman. "Clinical and echocardiographic evaluation of patients undergoing total leaflets preservation during mitral valve replacement; Does it make a difference?" Egyptian Cardiothoracic Surgeon 1, no. 2 (2019): 32–39. http://dx.doi.org/10.35810/ects.v1i2.39.

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Background: The effect of anterior and posterior leaflet preservation on left ventricular function after mitral valve replacement is still the subject of ongoing research. The objective of this study is to analyze the early outcomes of total leaflets preservation compared to posterior and non-leaflet preservation during mitral valve surgery on cardiac function and dimensions measured by echocardiography and on the clinical outcomes.Methods: This prospective cohort study recruited 155 patients who had mitral valve replacement (MVR) from April 2016 to March 2018 at Assiut University Hospital. Pa

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Sweeney, Joseph C., Amal Alotaibi, Gene D. Porter, et al. "Ischemic mitral regurgitation: To repair or replace? A single center experience." PLOS ONE 19, no. 10 (2024): e0307449. http://dx.doi.org/10.1371/journal.pone.0307449.

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Objective Recent reports on ischemic mitral valve (MV) regurgitation surgical strategies have suggested better hemodynamic performance with MV replacement (MVR) than MV repair (MVr) with no survival difference at 2 years. We evaluated the difference between MVR and MVr outcomes in patients with ischemic MR, including hemodynamic MV performance at 1 and 2 years postoperatively. Methods A single center cardiac surgery database was queried for patients (aged >/ = 18 years) requiring mitral valve surgery with concomitant CABG or PCI between January 2010 and June 2018. Patients were separated in

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Nii, Yasuyuki, Emi Takahashi, Miho Tabata, Shimon Furusato, Masaya Katsumata, and Masami Uechi. "Hypoglycemia after Mitral Valve Repair in Dogs." Veterinary Sciences 11, no. 2 (2024): 79. http://dx.doi.org/10.3390/vetsci11020079.

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Hypoglycemia has not been previously reported as a postoperative complication of mitral valve repair (MVR) in dogs; however, the authors have encountered cases of hypoglycemia after MVR. This study aimed to determine the incidence of hypoglycemia in dogs after MVR and investigate its causes. Blood glucose levels were measured at multiple timepoints in dogs undergoing MVR. Simultaneously, insulin and glucagon blood concentrations in dogs with hypoglycemia preoperatively and postoperatively were compared to verify the physiological responses to hypoglycemia. Furthermore, risk factors for hypogly

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Zhuang, Aobo, Yuan Fang, Lijie Ma, et al. "Does Aggressive Surgery Mean Worse Quality of Life and Functional Capacity in Retroperitoneal Sarcoma Patients?—A Retrospective Study of 161 Patients from China." Cancers 14, no. 20 (2022): 5126. http://dx.doi.org/10.3390/cancers14205126.

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The mainstay of treatment for primary retroperitoneal sarcoma (RPS) is surgery. However, whether multiple visceral resection (MVR) affects patients’ quality of life compared with simple tumor resection has not been reported. Patients with primary RPS who underwent radical resection between 2009 and 2021 were included. Patients who were alive at the last follow-up were asked to complete the European Organization for the Research and Treatment of Cancer Core Quality of Life Questionnaire (EORTC QLQ-C30). The primary endpoint of the study was the global health (GH) score. A total of 161 patients

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Everaars, Henk, Guus A. de Waard, Stefan P. Schumacher, et al. "Continuous thermodilution to assess absolute flow and microvascular resistance: validation in humans using [15O]H2O positron emission tomography." European Heart Journal 40, no. 28 (2019): 2350–59. http://dx.doi.org/10.1093/eurheartj/ehz245.

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Abstract Aims Continuous thermodilution is a novel technique to quantify absolute coronary flow and microvascular resistance (MVR). Notably, intracoronary infusion of saline elicits maximal hyperaemia, obviating the need for adenosine. The primary aim of this study was to validate continuous thermodilution in humans by comparing invasive measurements to [15O]H2O positron emission tomography (PET). As a secondary goal, absolute flow and MVR were compared between invasive measurements obtained with and without adenosine. Methods and results Twenty-five patients underwent coronary computed tomogr

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Claus, Thomas, Martin Hartrumpf, Ralf Kuehnel, et al. "MitraClip for High-Risk Patients with Significant Mitral Insufficiency: Shall We Unreservedly Recommend It?" Thoracic and Cardiovascular Surgeon 66, no. 07 (2017): 537–44. http://dx.doi.org/10.1055/s-0037-1606329.

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Background MitraClip (Abbott Inc.) is propagated as a palliative option for high-risk patients with mitral insufficiency considered not qualifying for surgical repair. A proportion of patients requires consecutive surgery because of technical failure or inappropriate clinical improvement. Furthermore, surgical reconstruction is impossible in almost all patients after MitraClip implantation. Consequently, these patients receive replacement although primary repair may have been possible. The outcome of those patients compared with patients receiving primary mitral valve replacement (MVR) or mitr

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Chen, Lin, Baicheng Chen, Jia Hao, et al. "Complete Preservation of the Mitral Valve Apparatus during Mitral Valve Replacement for Rheumatic Mitral Regurgitation in Patients with an Enlarged Left Ventricular Chamber." Heart Surgery Forum 16, no. 3 (2013): 137. http://dx.doi.org/10.1532/hsf98.20121128.

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<p><b>Background and Aims:</b> The merits of retaining the subvalvular apparatus during mitral valve replacement (MVR) for chronic mitral regurgitation have been demonstrated in clinical investigations. This study was to investigate the feasibility of total preservation of the leaflet and subvalvular apparatus at the native anatomic position during MVR in a rheumatic population with enlarged left ventricular chamber.</p><p><b>Material and Methods:</b> The techniques of valvular apparatus preservation used during MVR with or without aortic valve replace

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Han, Chungyong, Rohit Singh, Seon-Hee Kim, Beom K. Choi, and Byoung S. Kwon. "Suppression of EBV-induced LCLs using CAR T cells redirected against HLA-DR." Journal of Clinical Oncology 35, no. 7_suppl (2017): 146. http://dx.doi.org/10.1200/jco.2017.35.7_suppl.146.

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146 Background: Recent studies demonstrated a therapeutic potential of T cells with chimeric antigen receptor (CAR) targeting CD19 in refractory B cell malignancies. However, CD19-CAR T cells frequently caused on-target off-tumor side effect, i.e. B cell aplasia, and led to the recurrence of CD19-negative leukemic cells. Alternative target antigen for B cell malignancies has to be excavated. Methods: We developed antibody clone, MVR, which specifically bound to HLA-DR that is highly expressed on malignant B cells. In particular, MVR recognized polymorphic region of HLA-DR, and indicated differ

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Ott, Robert, Sebastian Kaule, Swen Großmann, et al. "Transcatheter mitral valve repair devices - in vitro studies on the influence of device-width on mitral regurgitation." Current Directions in Biomedical Engineering 6, no. 3 (2020): 217–20. http://dx.doi.org/10.1515/cdbme-2020-3055.

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AbstractMitral regurgitation (MR) is the most prevalent valvulopathy in the USA and the second most prevalent valvulopathy in Europe. Despite excellent clinical results of surgical mitral valve repair (SMVR), transcatheter-based mitral valve repair (MVR) procedures emerged as a feasible treatment option for surgically inoperable or high-risk patients suffering from clinically relevant MR. The current study investigates the impact of device-induced coaptationwidth on the hydrodynamic performance of insufficient mitral valves (MV) during left ventricular (LV) systole. A non-calcified, pathologic

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Chan, Kai Siang, Biquan Liu, Ming Ngan Aloysius Tan, Kwang Yeong How, and Kar Yong Wong. "Feasibility and safety of minimally invasive multivisceral resection for T4b rectal cancer: A 9-year review." World Journal of Gastrointestinal Surgery 16, no. 3 (2024): 777–89. http://dx.doi.org/10.4240/wjgs.v16.i3.777.

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BACKGROUND Colorectal cancer is the third most common cancer and the second highest cause of cancer-related mortality worldwide. About 5%-10% of patients are diagnosed with locally advanced rectal cancer (LARC) on presentation. For LARC invading into other structures (i.e. T4b), multivisceral resection (MVR) and/or pelvic exenteration (PE) remains the only potential curative surgical treatment. MVR and/or PE is a major and complex surgery with high post-operative morbidity. Minimally invasive surgery (MIS) has been shown to improve short-term post-operative outcomes in other gastrointestinal m

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Stelzmueller, Marie-Elisabeth, Daniel Zimpfer, and Wilfried Wisser. "Morphometric Measurements Prior to Totally Endoscopic Mitral Valve Repair: Technical and Educational Aspects." Journal of Clinical Medicine 14, no. 8 (2025): 2581. https://doi.org/10.3390/jcm14082581.

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Objective: The totally endoscopic approach is on the rise to become the new standard in mitral valve surgery. The aim of this study was to develop a morphometric measurement tool for educational purposes to predict operability with low conversion and high repair rates. Methods: From January 2020 to March 2023, 64 patients underwent totally endoscopic mitral valve repair (TE-MVR). Of these, 15 patients were deemed to be unsuitable for TE-MVR due to narrow space and/or anticipated complex repair techniques and underwent repair through sternotomy (MVR-open). Angio-CT scanning was performed for pr

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El Gabry, Mohamed, Zaki Haidari, Fanar Mourad, et al. "Outcomes of mitral valve repair in acute native mitral valve infective endocarditis." Interactive CardioVascular and Thoracic Surgery 29, no. 6 (2019): 823–29. http://dx.doi.org/10.1093/icvts/ivz187.

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AbstractOBJECTIVESMitral valve repair (MVR) is considered the treatment of choice for mitral valve (MV) regurgitation. However, MVR in acute native MV infective endocarditis is technically challenging and not commonly performed. Our goal was to report our outcomes of MVR in acute native MV infective endocarditis.METHODSBetween January 2016 and December 2017, 35 patients presenting with acute native MV infective endocarditis underwent MVR. Primary end points were successful MVR and freedom from recurrent endocarditis. Secondary end point was the postoperative incidence of major adverse events.R

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Sjøberg, Kim A., Jens J. Holst, Stephen Rattigan, Erik A. Richter, and Bente Kiens. "GLP-1 increases microvascular recruitment but not glucose uptake in human and rat skeletal muscle." American Journal of Physiology-Endocrinology and Metabolism 306, no. 4 (2014): E355—E362. http://dx.doi.org/10.1152/ajpendo.00283.2013.

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The insulinotropic gut hormone glucagon-like peptide-1 (GLP-1) has been proposed to have effects on vascular function and glucose disposal. However, whether GLP-1 is able to increase microvascular recruitment (MVR) in humans has not been investigated. GLP-1 was infused in the femoral artery in overnight-fasted, healthy young men. Microvascular recruitment was measured with real-time contrast-enhanced ultrasound and leg glucose uptake by the leg balance technique with and without inhibition of the insulinotropic response of GLP-1 by coinfusion of octreotide. As a positive control, MVR and leg g

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Jiang, ShengLi, ChangQing Gao, BoJun Li, et al. "Congenital Mitral Valve Regurgitation in Adult Patients." Heart Surgery Forum 14, no. 2 (2011): 114. http://dx.doi.org/10.1532/hsf98.20101097.

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Objective: Congenital mitral valve regurgitation (MVR) is a rare disease found in adults. We report on our 5-year surgical experience with congenital MVR in adults.Methods: We reviewed the data for 48 consecutive patients (26 men), aged >18 years (median, 42 years; range, 18-78 years) who underwent operations for severe congenital MVR between June 2005 and May 2010. Patients with atrioventricular septal defect were excluded.Results: Congenital MVR was preoperatively diagnosed in 28 cases (58%). The lesions consisted of annular dilation (100%), valvular cleft (58%), prolapsed leaflet (40%),

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Mater, Kathryn, Julian Ayer, Ian Nicholson, David Winlaw, Richard Chard, and Yishay Orr. "Patient-Specific Approach to Mitral Valve Replacement in Infants Weighing 10 kilograms or less." World Journal for Pediatric and Congenital Heart Surgery 10, no. 3 (2019): 304–12. http://dx.doi.org/10.1177/2150135119837200.

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Background: Mitral valve replacement (MVR) is the only option for infants with severe mitral valve disease that is not reparable; however, previously reported outcomes are not always favorable. Our institution has followed a tailored approach to sizing and positioning of mechanical valve prostheses in infants requiring MVR in order to obtain optimal outcomes. Methods: Outcomes for 22 infants ≤10 kg who have undergone MVR in Sydney, Australia, from 1998 to 2016, were analyzed. Patients were at a mean age of 6.8 ± 4.1 months (range: 0.8-13.2 months) and a mean weight of 5.4 ± 1.8 kg at the time

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Li, Feng Jiao, Ji Zhao Liang, Bo Zhu, and Ke Jian Wang. "Flow and Die-Swell Behavior in Extrusion of PLLA Melts." Advanced Materials Research 1051 (October 2014): 156–61. http://dx.doi.org/10.4028/www.scientific.net/amr.1051.156.

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The rheological properties of two kinds of poly (L-lactic acid) melts (AI-1001 and 4032D) have been investigated using a melt flow indexer within the temperature range from 170 to 190 and load varying from 2.16 to 12.5 kg. It was found that the melt volume flow rate (MVR) and extrudate swell ratios (B) increased non-linearly with increasing load when the temperature was constant; the MVR increased while the B decreased with a rise in temperature for both the AI-1001 and 4032D melts; the relationship between the MVR and temperature obeyed expression like as the Arrhenius equation when the load

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Polanco, Antonio R., Alex D’Angelo, Nicholas Shea, et al. "Impact of Septal Myectomy Volume on Mitral-Valve Replacement Rate in Hypertrophic Cardiomyopathy Patients." Cardiology 145, no. 3 (2020): 161–67. http://dx.doi.org/10.1159/000504215.

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Objective: Mitral regurgitation (MR) induced by systolic anterior motion in patients with hypertrophic cardiomyopathy (HCM) can frequently be abolished with a proficient septal myectomy (SM) without the need for mitral-valve replacement (MVR). ACC guidelines stress the importance of volume in improving outcomes after SM, but there is a lack of data measuring the impact of volume on the need for MVR during SM. This study was designed to assess the impact of institutional volume on MVR rates using national outcomes data. Methods: The Nationwide Inpatient Sample was queried from 1998 to 2011 and

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Alam, Md Jahangir, Md Ripter Hossain, S. M. Shahinul Islam, and Md Nurul Haque Mollah. "Regression based fast multi-trait genome-wide QTL analysis." Journal of Bioinformatics and Computational Biology 19, no. 01 (2021): 2050044. http://dx.doi.org/10.1142/s0219720020500444.

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Multivariate simple interval mapping (SIM) is one of the most popular approaches for multiple quantitative trait locus (QTL) analysis. Both maximum likelihood (ML) and least squares (LS) multivariate regression (MVR) are widely used methods for multi-trait SIM. ML-based MVR (MVR-ML) is an expectation maximization (EM) algorithm based iterative and complex time-consuming approach. Although the LS-based MVR (MVR-LS) approach is not an iterative process, the calculation of likelihood ratio (LR) statistic in MVR-LS is also a time-consuming complex process. We have introduced a new approach (called

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Suzuki, Hideaki. "Operation Experience of MVR Pre-Eva." JAPAN TAPPI JOURNAL 68, no. 8 (2014): 876–79. http://dx.doi.org/10.2524/jtappij.68.876.

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Suzuki, Hideaki. "Operation Experience of MVR Pre-Eva." JAPAN TAPPI JOURNAL 69, no. 4 (2015): 355–59. http://dx.doi.org/10.2524/jtappij.69.355.

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Lv, Lizhi, Xinyue Lang, Simeng Zhang, et al. "Effectiveness and Safety of Mitral Valve Plasty in Patients with an Anomalous Origin of the Coronary Artery from the Pulmonary Artery." Journal of Cardiovascular Development and Disease 10, no. 2 (2023): 75. http://dx.doi.org/10.3390/jcdd10020075.

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The study aimed to determine the effectiveness and safety of anomalous coronary artery from pulmonary artery (ACAPA) patients with moderate or severe mitral valve regurgitation (MVR) receiving mitral valve plasty (MVP) concurrently. Consecutive ACAPA patients undergoing surgery between 2015 and 2021 were retrospectively included. Patients were divided into three groups: moderate MVR without MVP (non-MVP (moderate) N = 14), moderate MVR with MVP (MVP (moderate) N = 13), and severe MVR with MVP (MVP (severe) N = 13). The primary safety endpoint was in-hospital surgery-related complications. The

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Park, Sung Jun, You Jung Ok, Ho Jin Kim, et al. "Evaluating Reference Ages for Selecting Prosthesis Types for Heart Valve Replacement in Korea." JAMA Network Open 6, no. 5 (2023): e2314671. http://dx.doi.org/10.1001/jamanetworkopen.2023.14671.

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ImportanceAlthough a patient’s age may be the only objective figure that can be used as a reference indicator in selecting the type of prosthesis in heart valve surgery, different clinical guidelines use different age criteria.ObjectiveTo explore the age-associated survival-hazard functions associated with prosthesis type in aortic valve replacement (AVR) and mitral valve replacement (MVR).Design, Setting, and ParticipantsThis cohort study compared the long-term outcomes associated with mechanical and biologic prostheses in AVR and MVR according to recipient’s age using a nationwide administra

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Chiu, Wan-Ting, Pimpet Sratong-on, Masaki Tahara, Volodymyr Chernenko, and Hideki Hosoda. "Influence of superelastic training and huge strains on field-induced martensitic variants reorientation in particulate Ni–Mn–Ga/silicone composite." Smart Materials and Structures 33, no. 12 (2024): 125035. http://dx.doi.org/10.1088/1361-665x/ad939d.

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Abstract Ni–Mn–Ga ferromagnetic shape memory alloys (FSMAs) are promising materials for actuator and transducer devices. Their intrinsic brittleness and high fabrication cost in the bulk form are issues to be solved. One of the solutions is a development of composites comprising these materials as a filler component whereby representing an emerging research field in the FSMAs. To address the improvement and stability challenges of the magnetic field-induced martensitic variant reorientation (MVR) characteristics of the particles in the previously elaborated ‘Ni–Mn–Ga single-crystalline particl

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Buckley, N. M., M. Jarenwattananon, P. M. Gootman, and I. D. Frasier. "Autoregulatory escape from vasoconstriction of intestinal circulation in developing swine." American Journal of Physiology-Heart and Circulatory Physiology 252, no. 1 (1987): H118—H124. http://dx.doi.org/10.1152/ajpheart.1987.252.1.h118.

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The capability of the developing intestinal circulation to maintain a vasoconstrictor response during postganglionic adrenergic nerve stimulation or norepinephrine infusion was examined in 34 swine aged 6 h to 2 mo anesthetized with pentobarbital sodium. Aortic and portal venous pressures, electrocardiogram (ECG), and blood flow (F) through the superior mesenteric artery were recorded, and intestinal vascular resistance (MVR) was calculated as mean pressure difference per mean F. Baroreceptor reflex inhibition by bilateral occlusion of the carotid arteries increased MVR, section of the splanch

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Xie, Fengling, Yan Zhao, Aipeng Jiang, Rui Zhao, Chuang Li, and Jian Wang. "Joint Modeling and Operational Optimization of a Reverse Osmosis–Mechanical Vapor Recompression System for Coal-Fired Power Plant Wastewater." Membranes 14, no. 3 (2024): 65. http://dx.doi.org/10.3390/membranes14030065.

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The operation of coal-fired power plants generates a large amount of wastewater. With the issuance of increasingly strict drainage standards, the cost of wastewater treatment is increasing, and the need to reduce the cost of wastewater treatment is becoming increasingly urgent. Thus, based on the principles of reverse osmosis (RO) and mechanical vapor recompression (MVR) in wastewater treatment, the operational optimization of an RO-MVR joint system was studied in this work with the consideration of reducing the operating costs of wastewater treatment under given operational conditions. Firstl

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Knapp, Sabine. "Quantification and Analysis of Risk Exposure in the Maritime Industry: Averted Incident Costs Due to Inspections and the Effect of SARS-Cov-2 (COVID-19)." Safety 7, no. 2 (2021): 43. http://dx.doi.org/10.3390/safety7020043.

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Shipping provides essential services even during global pandemics such as SARS-CoV-2 (COVID-19). The present approach estimates the monetary value at risk (MVR) at the global and regional level for the world fleet and quantifies the amount of averted incident costs due to inspections. It also provides an indication of the effect of COVID-19 on both. This information can help maritime stakeholders to better understand their risk exposure and improve mitigation strategies. The analysis is based on the global fleet, using a comprehensive combination of data. The analysis confirms the importance t

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Alassaf, Mohammed, Saad Mohammed Alqahtani, Rana Salem Al Khulaifi, et al. "Mevacor/Poly(Vinyl Acetate/2-Hydroxyethyl Methacrylate) as Solid Solution: Preparation, Solubility Enhancement and Drug Delivery." Polymers 15, no. 19 (2023): 3927. http://dx.doi.org/10.3390/polym15193927.

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Mevacor/Poly(vinyl acetate-co-2-hydroxyethyl methacrylate) drug carrier systems (MVR/VAC-HEMA) containing different Mevacor (MVR) contents were prepared in one pot by free radical copolymerization of vinyl acetate with 2-hydroxyethyl methacrylate using an LED lamp light in the presence of camphorquinone as a photoinitiator and Mevacor as a drug filler. The prepared material was characterized by FTIR, 1H NMR, DSC, SEM and XRD methods. Different parameters influencing the efficiency in the Mecvacor-water solubility and the drug delivery of this system, such as the swelling capacity of the carrie

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Khairallah, Sherif, Mohamed Rahouma, Ivancarmine Gambardella, et al. "Trends in the Management of Anterior Mitral Leaflet Regurgitation." JAMA Network Open 7, no. 4 (2024): e246726. http://dx.doi.org/10.1001/jamanetworkopen.2024.6726.

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ImportanceThe overall prevalence of mitral valve replacement (MVR) or MV repair at the time of cardiac surgery in the setting of isolated anterior mitral leaflet degenerative pathologic status in the US population is unknown.ObjectiveTo investigate the prevalence of MVR and MV repair using the Society of Thoracic Surgeons’ Adult Cardiac Surgery Database.Design, Setting, and ParticipantsIn a cross-sectional study, all patients diagnosed with isolated anterior mitral leaflet degenerative regurgitation who underwent either surgical MVR or MV repair between July 1, 2011, and June 30, 2022, were id

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Maeda, Shoji, Qianhui Qu, Michael J. Robertson, Georgios Skiniotis, and Brian K. Kobilka. "Structures of the M1 and M2 muscarinic acetylcholine receptor/G-protein complexes." Science 364, no. 6440 (2019): 552–57. http://dx.doi.org/10.1126/science.aaw5188.

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Muscarinic acetylcholine receptors are G protein–coupled receptors that respond to acetylcholine and play important signaling roles in the nervous system. There are five muscarinic receptor subtypes (M1R to M5R), which, despite sharing a high degree of sequence identity in the transmembrane region, couple to different heterotrimeric GTP-binding proteins (G proteins) to transmit signals. M1R, M3R, and M5R couple to the Gq/11 family, whereas M2R and M4R couple to the Gi/o family. Here, we present and compare the cryo–electron microscopy structures of M1R in complex with G11 and M2R in complex wi

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Nardi, Paolo, Calogera Pisano, Carlo Bassano, et al. "Mid-term results of mitral valve replacement and repair: current clinical experience, technical aspects, and risk factor analysis." Vessel Plus 6 (2022): 34. http://dx.doi.org/10.20517/2574-1209.2021.132.

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Aim: We evaluated the short- and mid-term results of mitral valve replacement (MVR) and mitral valve repair (MV-repair). Methods: In total, 168 patients (mean age 67 ± 11 years) underwent MVR (n = 104) and MV-repair (n = 64). To treat posterior leaflet disease, MV-repair techniques included triangular or quadrangular resection (n = 38), P1-P2 plication (n = 4), side-to side P1-P2 (n = 1), posterior-medial commissure-plasty (n = 1), and annuloplasty (n = 20). A prosthetic ring was implanted in all patients. In the presence of degenerative disease involving the anterior leaflet, extensive myxoma

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Bhamidipati, Castigliano M., Gaurav S. Mehta, Muhammad F. Sarwar, Renganaden Sooppan, Karikehalli A. Dilip, and Charles J. Lutz. "Robot-Assisted Mitral Valve Repair a Single Institution Review." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 5, no. 4 (2010): 295–99. http://dx.doi.org/10.1097/imi.0b013e3181ed5103.

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Objective Mitral valve repair (MVR) is the definitive therapy for mitral myxomatous degeneration. Median sternotomy has been the traditional approach to repair until the advent of the da Vinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, CA). Minimally invasive surgical approaches for mitral repair have been slow to gain acceptance in cardiac surgery. We review the MVR results from our single-institution academic robotic program. Methods From August 2004 through April 2008, patients who underwent a robotic-assisted (RA) MVR were identified. RA technique included a 4-cm right minithora

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Shenoy, Aroon. "Material’s Volumetric-Flow Rate (MVR) as a Unification Parameter in Asphalt Rheology and Quality Control / Quality Assurance Tool for High Temperature Performance Grading." Applied Rheology 10, no. 6 (2000): 288–306. http://dx.doi.org/10.1515/arh-2000-0019.

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Abstract Rheological data of unmodified and polymer-modified asphalts are conventionally obtained from dynamic mechanical characterization and expressed in terms of sets of curves showing the variation of viscoelastic properties with frequency. Using the conventional melt flow indexer, the material’s volumetric-flow rate MVR (in cm3 / 10 minutes) through a predefined die under conditions of constant temperature and stress when obtained for the same asphalts, shows a direct relationship with the dynamic data. The MVR value helps in unifying the sets of dynamic data curves of |G*|, G” and |G* |/

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Berzingi, Chalak, Vinay Badhwar, Fahad Alqahtani, Sami Aljohani, Zakeih Chaker, and Mohamad Alkhouli. "Contemporary outcomes of isolated bioprothestic mitral valve replacement for mitral regurgitation." Open Heart 5, no. 2 (2018): e000820. http://dx.doi.org/10.1136/openhrt-2018-000820.

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BackgroundEarly experience with transcatheter mitral valve replacement (TMVR) highlighted several investigational challenges related to this novel therapy. Conclusive randomised clinical trials in the field may, therefore, be years ahead. In the interim, contemporary outcomes of isolated surgical bioprosthetic mitral valve replacement (MVR) can be used as a benchmark for the emerging TMVR therapies.MethodsWe used the nationwide inpatient sample to examine recent trends and outcomes of surgical bioprosthetic MVR for mitral regurgitation (isolated and combined).Results21 007 patients who had bio

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Bkoor Alrawashdeh, Khalideh Al, Kamel K. Al-Zboon, Jalal A. Al-Tabbal, et al. "The Effects of Nanoparticles- Zerovalent Iron on Sustainable Biomethane Production through Co-Digestion of Olive Mill Wastewater and Chicken Manure." Fermentation 9, no. 2 (2023): 183. http://dx.doi.org/10.3390/fermentation9020183.

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The impacts of nanoparticles-zerovalent iron (NP-ZVI) on anaerobic co-digestion (AcoD) were assessed. The production of biogas and methane (CH4), as well as the removal efficiency of volatile solids (VS) and contaminants were investigated in the AcoD of chicken manure (CM) and olive mill wastewater (OMWW) with the addition of NP-ZVI at different concentrations (10–50 mg/g VS) and different sizes resulting from various mixing volume ratios (MVR) of NaBH4:FeSO4.7H2O. The results show that NP-ZVI ≤ 30 mg/g VS at MVR-2:1, MVR-4:1, and MVR-6:1 improves the AcoD. In contrast to 40–50 mg/g VS of NP-Z

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Lefebre, Regis, David Claeys Bouuaert, Emma Bossuyt, et al. "Comprehensive Approach to Phenotype Varroa destructor Reproduction in Honey Bee Drone Brood and Its Correlation with Decreased Mite Reproduction (DMR)." Insects 15, no. 6 (2024): 397. http://dx.doi.org/10.3390/insects15060397.

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The mechanisms of action behind decreased mite reproduction (DMR) are still unknown, but current hypotheses state that DMR is the result of brood-intrinsic and/or external disturbances in the V. destructor—honey bee pupa signal interactions. For accurate and precise DMR phenotyping, sufficient single infested honey bee brood cells are required (e.g., 35), which requires extensive labor and time and may exclude many samples not reaching the threshold. We defined a new comprehensive trait called the ‘mean V. destructor reproduction rate’ (mVR), which describes the mean number of offspring mites

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Arslanoglu, Yavuz, Hayati Deniz, and Hasim Ustunsoy. "Comparison of Midterm and Long-Term Effects of Cord Protection Methods on Left Ventricular Function in Mitral Valve Replacement Surgery." ULUTAS MEDICAL JOURNAL 9, no. 1 (2023): 35. http://dx.doi.org/10.5455/umj.20230201114207.

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Introduction: Our study aimed to determine the effects of cord protection methods applied in Mitral valve replacement (MVR) surgery on left ventricular function. Materials and Methods: MVR surgery was performed on 634 patients using either single or combined procedures. Of these patients, 358 (56.5%) underwent conventional MVR surgery, 121 (19.1%) underwent total chordal protection, and 155 (24.4%) underwent posterior chordal preservation. All patients were evaluated as class 3 and 4 according to the New York functional classification (NYHA). Left ventricular diastolic end-diameter (SVDSD), le

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Saker, Michael, and Jordan Frith. "From hybrid space to dislocated space: Mobile virtual reality and a third stage of mobile media theory." New Media & Society 21, no. 1 (2018): 214–28. http://dx.doi.org/10.1177/1461444818792407.

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Research in the field of mobile communication studies (MCS) has generally moved away from focusing on how mobile phones distract users from their physical environment to considering how the experience of space and place can be enhanced by locative smartphone applications. This article argues that trajectory may be complicated by the emergence of a new type of mobile technology: mobile virtual reality (MVR). While an increasing number of handsets are specifically developed with MVR in mind, there is little to no research that situates this phenomenon within the continuum of MCS. The intention o

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Grolle, Riclef, Ludwig Meinunger, Werner Hilbig, and Siegfried Huneck. "Beitrag zur Kenntnis der Moosflora der Mongolischen Volksrepublik. II¹)." Feddes Repertorium 97, no. 7-8 (1986): 521–26. http://dx.doi.org/10.1002/j.1522-239x.1986.tb00267.x.

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ZusammenfassungIn der vorliegenden Arbeit werden Fundorte von 14 Lebermoosen und 29 Laubmoosen ans der Mongolischen Volksrepublik mitgeteilt. Frullania muscicola und Plagiochasma japonicum werden erstmalig für die MVR nachgewiesen. Alle Angaben von Frullania dilata aus der MVR sind vermutlich unzutreffend.

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Nisa, Ainun, and Kusumawati Dwiningsih. "EFEKTIVITAS PEMBELAJARAN GEOMETRI MOLEKUL MENGGUNAKAN MOBILE VIRTUAL REALITY (MVR) UNTUK MENINGKATKAN KEMAMPUAN VISUOSPASIAL." Kwangsan: Jurnal Teknologi Pendidikan 9, no. 2 (2021): 220. http://dx.doi.org/10.31800/jtp.kw.v9n2.p220--236.

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Chemistry is a branch of science that encourages various advances in various fields. However, the characteristics of chemistry which have complex concepts make it difficult for class X high school students to understand chemistry. Thus, the problem that is the focus of discussion in this study is how to overcome the low visuospatial skills of high school students in class X, so that students can understand complex concepts in chemistry. This study uses the research design and development of the 4D Thiaganrajan modified 3D Ibrahim method. This study aims to determine the effectiveness of Mobile

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Promratpan, Wasinee, Nonthikorn Theerasuwipakorn, Vorarit Lertsuwunseri, and Suphot Srimahachota. "Long-term outcomes of severe rheumatic mitral stenosis after undergoing percutaneous mitral commissurotomy and mitral valve replacement: A 10-year experience." Journal of Cardiovascular and Thoracic Research 14, no. 2 (2022): 101–7. http://dx.doi.org/10.34172/jcvtr.2022.16.

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Introduction: Percutaneous mitral commissurotomy (PTMC) and mitral valve replacement (MVR) are treatments of choice for severe rheumatic mitral stenosis (MS). Data regarding the long-term outcomes of patients who underwent PTMC and MVR are limited. Methods: A retrospective cohort study was conducted to evaluate the long-term outcomes of patients with severe rheumatic MS who underwent PTMC or MVR between 2010 to 2020. The primary outcome comprised of all-cause death, stroke or systemic embolism, heart failure hospitalization and re-intervention. Cox regression was used to investigate predictors

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Hwang, Ho-Young, Suk-Ho Sohn, and Myoung-jin Jang. "Impact of Prosthesis-Patient Mismatch on Survival after Mitral Valve Replacement: A Meta-analysis." Thoracic and Cardiovascular Surgeon 67, no. 07 (2018): 538–45. http://dx.doi.org/10.1055/s-0038-1675195.

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Background Numerous studies have demonstrated a negative impact of prosthesis-patient mismatch (PPM) on long-term clinical outcomes after aortic valve replacement. However, the impact of PPM after mitral valve replacement (MVR) on clinical outcomes is still controversial. This study was conducted to evaluate the impact of PPM on early and long-term survival after MVR. Methods A literature search of five databases was performed. The primary and secondary outcomes were all-cause mortality and early mortality, respectively. Subgroup analyses were performed according to the risk of bias, patients'

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Lafci, Gokhan, Kerim Cagli, Omer Faruk Cicek, et al. "Papillary Muscle Repositioning as a Subvalvular Apparatus Preservation Technique in Mitral Stenosis Patients with Normal Left Ventricular Systolic Function." Texas Heart Institute Journal 41, no. 1 (2014): 33–39. http://dx.doi.org/10.14503/thij-13-3241.

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Subvalvular apparatus preservation is an important concept in mitral valve replacement (MVR) surgery that is performed to remedy mitral regurgitation. In this study, we sought to determine the effects of papillary muscle repositioning (PMR) on clinical outcomes and echocardiographic left ventricular function in rheumatic mitral stenosis patients who had normal left ventricular systolic function. We prospectively assigned 115 patients who were scheduled for MVR surgery with mechanical prosthesis to either PMR or MVR-only groups. Functional class and echocardiographic variables were evaluated at

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Netiazhenko, Vasyl Z., Serhii I. Mostovyi, Olga M. Safonova, and Kyrylo O. Mikhaliev. "MICROCIRCULATORY ALTERATIONS IN STABLE CORONARY ARTERY DISEASE PATIENTS WITH CONCOMITANT COVID-19." Wiadomości Lekarskie 76, no. 10 (2023): 2224–38. http://dx.doi.org/10.36740/wlek202310115.

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The aim: To evaluate the alterations in microcirculation of stable coronary artery disease (SCAD) patients with concomitant COVID-19. Materials and methods: The cross-sectional study analyzed the data from 80 patients, being subdivided as follows: group 1 (G1) – SCAD without COVID-19 (n=30); group 2 (G2) – SCAD with concomitant COVID-19 (n=25); group 3 (G3) – COVID-19 without SCAD (n=25). The control group included 30 relatively healthy volunteers. The state of microcirculation was assessed by nailfold videocapillaroscopy (NVC) and laser Doppler flowmetry (LDF). Results: NVC data from G2 revea

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Martin, Randolph P. "Commercial Use of MVR." Journal of the American College of Cardiology 67, no. 10 (2016): 1141–44. http://dx.doi.org/10.1016/j.jacc.2016.01.020.

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Alam, A. S. M. Rowshon, Sushil Kumar Ray, Jannatul Sharmin Joarder, et al. "Comparison of percutaneous coronary intervention outcomes in diabetic patients with non-ST-elevation myocardial infarction having multivessel disease." International Journal of Research in Medical Sciences 13, no. 6 (2025): 2391–97. https://doi.org/10.18203/2320-6012.ijrms20251628.

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Background: Diabetic patients with non-ST-elevation myocardial infarction (NSTEMI) and multivessel coronary artery disease (MVD) present unique challenges in revascularization strategy selection. This study compares the clinical outcomes of multivessel (MVR) versus single-vessel revascularization (SVR) using percutaneous coronary intervention (PCI) in such patients. Methods: A prospective observational study was conducted at a tertiary center in Bangladesh including 110 diabetic NSTEMI patients with angiographically confirmed MVD. Patients underwent either MVR (n=58) or SVR (n=52). Outcomes as

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Wang, Lei, Xusha Zhou, Xiaoqing Chen, et al. "Abstract 6652: Advanced glioblastoma immunotherapy: Attenuated herpes oncolytic virus armed with anti-PD-1 antibody and IL-12." Cancer Research 84, no. 6_Supplement (2024): 6652. http://dx.doi.org/10.1158/1538-7445.am2024-6652.

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Abstract Background: Glioblastoma (GBM), the most common and deadly primary brain tumor in adults, has limited treatment options with poor outcomes. The urgent need for innovative treatments has spurred research into immunotherapy and oncolytic virus therapy as promising alternatives. Herein, we have developed a new generation oncolytic herpes simplex virus (oHSV) armed with IL-12 and anti-PD-1 antibody to provide a synergistic anti-GBM efficacy for immune-oncolytic therapy. Methods: MVR-C5252, a novel oHSV, was created by genetic engineering, which included the removal of a 15-kb internal rep

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