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Relevant bibliographies by topics / Patency capsule

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Academic literature on the topic 'Patency capsule'

Author: Grafiati

Published: 4 June 2025

Last updated: 14 July 2025

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Journal articles on the topic "Patency capsule"

1

Hihara, Yu, Satoru Joshita, Toshiharu Takahashi, Shinji Okaniwa, Yoshiki Mizukami, and Yoshiyuki Nakamura. "A Patency Capsule Remained Intact in the Colon over 210 Hours." Case Reports in Gastrointestinal Medicine 2017 (2017): 1–3. http://dx.doi.org/10.1155/2017/1201404.

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We present an unusual case of a 35-year-old male patient whom a patency capsule stayed in his gut without breaking. He has a history of Peutz-Jeghers syndrome and multiple abdominal surgeries. Prestudy was performed for abdominal searching, but a patency capsule remained in the colon over 9 days. He displayed neither abdominal nor obstructive symptoms in that period. We collected the patency capsule using colonoscopy after dilating a postoperative stricture at an anastomotic site of the rectum. Clinicians should bear in mind that patency capsules may become retained as distally as the colon in patients with a surgical history of the large intestine.

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O’Grady, John, Siofra Bennett, Aidan Kaar, et al. "Routine plain film of abdomen in asymptomatic patients with video capsule retention in small bowel-time to change practice?" Mini-invasive Surgery 6 (2022): 34. http://dx.doi.org/10.20517/2574-1225.2022.22.

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Aim: Small bowel capsule retention is rare, with a rate of approximately 2%, defined as visible retention on plain film of abdomen (PFA) after 14 days. Currently, PFA is performed if the capsule is not seen to reach the large bowel during recording. Alternatively, for upper gastrointestinal (UGI) capsule studies, the risk of retention is determined if the capsule fails to reach the small bowel during recording. Given the similar physical specifications of the capsules (Medtronic) used, we considered whether 14-day PFA is no longer required for small bowel capsules not observed in the large bowel. Methods: The use of patency capsules in our lab allows careful selection of small bowel capsule studies to minimize the risk of retention. All PFAs performed over a five-year period were reviewed to determine if careful selection and use of patency negate the need for capsule retention PFA screening. Results: In total, 688 small-bowel capsules were performed during the study period, and 3.6% had prior patency capsules. Thirty-one PFAs with a query of capsule retention were performed during the study period on 28 patients. This included 15 females, and the median age was 53.5 years. None of the films demonstrated capsule retention. Conclusion: Our data suggest that 14-day PFA may no longer be required for small bowel capsules not seen to reach the large bowel. Advice regarding symptoms of capsule retention and precaution with magnetic resonance imaging, similar to current UGI capsule advice, may suffice. This may reduce the burden on radiology imaging slots and, in particular, eliminate unnecessary radiation exposure and repeat hospital attendance for patients.

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3

Takeda, Keita, Hiroyuki Tashimo, Kazuko Miyakawa, et al. "Patency Capsule Aspiration." Internal Medicine 59, no. 8 (2020): 1071–73. http://dx.doi.org/10.2169/internalmedicine.4012-19.

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Mannami, Tomohiko, Genyo Ikeda, Satoru Seno, et al. "Capsule Endoscope Aspiration after Repeated Attempts for Ingesting a Patency Capsule." Case Reports in Gastroenterology 9, no. 3 (2015): 347–52. http://dx.doi.org/10.1159/000441382.

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Capsule endoscope aspiration into the respiratory tract is a rare complication of capsule endoscopy. Despite the potential seriousness of this complication, no accepted methods exist to accurately predict and therefore prevent it. We describe the case of an 85-year-old male who presented for evaluation of iron deficiency anemia. He complained of dysphagia while ingesting a patency capsule, with several attempts over a period of 5 min before he was successful. Five days later, he underwent capsule endoscopy, where he experienced similar symptoms in swallowing the capsule. The rest of the examination proceeded uneventfully. On reviewing the captured images, the capsule endoscope was revealed to be aspirated, remaining in the respiratory tract for approximately 220 s before images of the esophagus and stomach appeared. To our knowledge, this is the first documented case of a patient who experienced capsule endoscope aspiration after ingestion of a patency capsule. This case suggests that repeated attempts required for ingesting the patency capsule can predict capsule endoscope aspiration. We presume that paying sufficient attention to the symptoms of a patient who ingests a patency capsule could help us prevent serious complications such as aspiration of the capsule endoscope. In addition, this experience implies the potential risk for ingesting the patency capsule. We must be aware that the patency capsule could also be aspirated and there may be more unrecognized aspiration cases.

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O'Hara, Fintan John, Conor Costigan, and Deirdre McNamara. "Extended 72-hour patency capsule protocol improves functional patency rates in high-risk patients undergoing capsule endoscopy." World Journal of Gastrointestinal Endoscopy 16, no. 12 (2024): 661–67. https://doi.org/10.4253/wjge.v16.i12.661.

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BACKGROUND Capsule endoscopy (CE) is a pivotal diagnostic tool for gastrointestinal (GI) disorders, yet capsule retention poses a significant risk, especially in patients with known risk factors. The patency capsule (PC) helps assess the functional patency of the GI tract to mitigate this risk. However, the standard 28-hour protocol for confirming patency often results in high false-positive rates, unnecessarily excluding many patients from undergoing diagnostic CE. AIM To investigate the use of a 72-hour extended patency protocol to improve functional patency rates in patients at risk of capsule retention. METHODS We performed a prospective, open-label study evaluating an extended 72-hour protocol for confirming functional patency with the PC. Conducted over six months, 135 patients with risk factors for capsule retention were enrolled. The primary endpoint was the capsule retention rate in patients with confirmed functional patency. Secondary endpoints included the rates of confirmed patency via self-reporting or radiology, small bowel transit times, and adverse events. RESULTS Functional patency was confirmed in 48.9% (n = 66) of patients within 28 hours, with an additional 17.4% (n = 12) confirmed within 72 hours, increasing the overall patency rate to 57.8%. There was no significant difference in small bowel transit time between patients confirmed for patency at 28 hours vs those confirmed at 72 hours. Importantly, no capsule retention was observed in patients who were confirmed for patency under the extended protocol. Notably, 50% (n = 39) of patients who proceeded to CE had clinically significant findings. CONCLUSION Extending the patency assessment protocol to 72 hours significantly improves the rate of confirmed functional patency without increasing the risk of capsule retention. This protocol is safe, effective, and cost-neutral, allowing more patients to benefit from CE. Further studies are recommended to refine the protocol and enhance its clinical utility.

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Kathpalia, Priya, and Aparajita Singh. "Capsule Retention Despite Clearance of Patency Capsule." American Journal of Gastroenterology 110 (October 2015): S466—S467. http://dx.doi.org/10.14309/00000434-201510001-01074.

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7

Sawai, Katsuji, Takanori Goi, Yumi Takegawa, et al. "Acute Small Bowel Perforation Caused by Obstruction of a Novel Tag-Less AgileTM Patency Capsule." Case Reports in Gastroenterology 12, no. 2 (2018): 337–43. http://dx.doi.org/10.1159/000490097.

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A 74-year-old man visited our hospital complaining of abdominal pain. An abdominal computed tomography scan showed multiple wall thickness of the small bowel. Capsule endoscopy was recommended for further evaluation, and patency capsule examination was performed. Eighteen hours after patency capsule ingestion, he experienced small bowel perforation with severe peritonitis caused by intestinal pressure rising because of the patency capsule trapped in his terminal ileum. An ileocolic resection was performed, including the removal of the sclerotic ileum as an emergency surgery. A pathological examination showed transmural inflammation and multiple ulcers with perforation of the small intestine, consistent with Crohn’s disease. Here, we report a rare and valuable case of novel tag-less AgileTM patency capsule (Given Imaging Ltd., Yoqneam, Israel) retention leading to small bowel perforation.

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Tanabe, Hiroki, Katsuyoshi Ando, Hironori Ohdaira, et al. "Successful medical treatment for a Crohn’s disease patient with a perforation by a second-generation patency capsule." Endoscopy International Open 06, no. 12 (2018): E1436—E1438. http://dx.doi.org/10.1055/a-0752-9903.

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Abstract Background and study aims Symptomatic capsule retention is a very rare adverse event following patency capsule, and the vast majority of cases are resolved without either surgical or endoscopic intervention. We herein describe a rare case of small bowel perforation after swallowing a patency capsule in a 37-year-old man suspected of having Crohn’s disease.

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9

EVANS, JEFF. "Patency Capsule Ascertains Safety of Deploying Video Capsule." Internal Medicine News 38, no. 6 (2005): 71. http://dx.doi.org/10.1016/s1097-8690(05)70229-8.

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Wray, Nicholas, Ailish Healy, Vicky Thurston, et al. "Premature dissolution of the Agile patency device: implications for capsule endoscopy." Frontline Gastroenterology 10, no. 3 (2018): 217–21. http://dx.doi.org/10.1136/flgastro-2018-101112.

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BackgroundThe main risk of capsule endoscopy is retention of the capsule behind a stricture. Passage of an intact Agile patency device (Medtronic, Dublin, Ireland) through the small bowel is widely used to ensure luminal patency, although capsule retention has occurred in patients who have had a reassuring patency study. The device is designed to remain intact for at least 30 hours postingestion, such that loss of signal from the radiofrequency identification tag contained within, or absence of the device on radiological imaging, implies unimpeded intestinal transit.AimTo identify the rate of premature dissolution (<30 hours postingestion) of the Agile patency device.MethodsOutcomes of all consecutive patients having an Agile patency device were analysed.ResultsPremature dissolution of the patency device occurred in 5 of 307 patients, an incidence of 1.3%. This was recognised by the detection of a persistent radiofrequency signal after radiological imaging had failed to identify the patency device, prompting a careful search for the radiofrequency tag on the CT scout film. The tag was difficult to detect because of an oblique lie making it appear smaller than its 13×3 mm size and confusion with intra-abdominal or other metallic fragments.ConclusionsIn the absence of radiological evidence of an intact Agile patency device, premature dissolution should be suspected in patients registering a persistent radiofrequency signal and confirmed by identifying the radiofrequency identification tag. Failure to do so might result in false reassurance that capsule endoscopy could be performed without risk of retention.

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Books on the topic "Patency capsule"

1

Goodwin, Munoz. Great Gift Idea for Gemini Notebook 100 Pages 6x9 Inch: Gemini Rocket Capsule Paten Space Exploration T. Independently Published, 2020.

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Book chapters on the topic "Patency capsule"

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Costamagna, Guido, Maria Elena Riccioni, Riccardo Urgesi, Martin Keuchel, and Ingo Steinbrück. "Patency Capsule." In Video Capsule Endoscopy. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-44062-9_9.

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Costamagna, Guido, Maria Elena Riccioni, Clelia Marmo, Martin Keuchel, and Ingo Steinbrück. "Patency Capsule." In Video Capsule Endoscopy. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-64719-2_12.

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Snape, Tim. "Origins of Drug Molecules." In Pharmaceutical Chemistry. Oxford University Press, 2021. http://dx.doi.org/10.1093/hesc/9780198779780.003.0013.

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This chapter recounts how human ancestors chewed tree bark and drank herbal tea to relieve their illnesses, whereas today people are more likely to visit the doctor and take prescribed medication. Modern medication generally appears in tablet or capsule form, and the active ingredient will have first appeared in pure form on a chemist's bench. The chapter addresses the origins of active ingredients and discusses some of today's drugs which are still derived from tree bark and herbal teas, and others from more sustainable biological sources, such as moulds and soil bacteria. The chapter describes the structures of natural products based on their complexity and emphasizes that fully synthetic drugs are usually a lot simpler than natural products. Despite the structural complexity of natural products, they can be used by chemists as a source of inspiration for the development of new drugs to the preparation of novel compounds for patent protection.

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Conference papers on the topic "Patency capsule"

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O'Hara, F., D. McNamara, and C. Walker. "RETROSPECTIVE ANALYSIS OF THE UTILITY OF THE PATENCY CAPSULE IN CAPSULE ENDOSCOPY." In ESGE Days 2022. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1745015.

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Silva, M., A. Peixoto, S. Gomes, et al. "PATENCY CAPSULE IN CROHN'S DISEASE – IS IT SAFE?" In ESGE Days 2019. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1681705.

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Costigan, C., F. O'Hara, A. M. O´sullivan, et al. "Patency testing prior to Video Capsule Endoscopy: An Irish Experience." In ESGE Days 2024. Georg Thieme Verlag KG, 2024. http://dx.doi.org/10.1055/s-0044-1783504.

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Silva, M., A. Peixoto, S. Gomes, et al. "PATENCY CAPSULE IN CLINICAL PRACTICE – EXPERIENCE OF A TERTIARY REFERENCE CENTER." In ESGE Days 2019. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1681911.

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Blanco-Velasco, G., J. Ramos-García, RA Zamarripa-Mottu, et al. "PREDICTION OF CAPSULE ENDOSCOPY RETENTION USING PATENCY CAPSULE COMPARED TO MAGNETIC RESONANCE ENTEROGRAPHY IN KNOWN CROHN´S DISEASE PATIENTS." In ESGE Days. © Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1704488.

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Badesha, A. S., and S. Ansari. "A cost-evaluation of different imaging approaches for patients undergoing patency capsule investigation at a video capsule endoscopy service." In ESGE Days 2024. Georg Thieme Verlag KG, 2024. http://dx.doi.org/10.1055/s-0044-1783306.

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Ukashi, O., A. Dotan, T. Borkovsky, et al. "Comparable un-passed patency capsule rates among Crohn’s disease patients during Clinical remission using different preparation protocols." In ESGE Days 2024. Georg Thieme Verlag KG, 2024. http://dx.doi.org/10.1055/s-0044-1783116.

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Srivastava, Saurabh, Puneet Agarwal, Gautam Shroff, Lovekesh Vig, and Vidya Vikas. "Capsule Based Neural Network Architecture to perform completeness check for Patent Eligibility Process." In 2020 International Joint Conference on Neural Networks (IJCNN). IEEE, 2020. http://dx.doi.org/10.1109/ijcnn48605.2020.9207163.

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Reports on the topic "Patency capsule"

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Liu, Tianpeng, Menglin Yao, Yifan Zhao, Shaochuan Zhao, Chen Rui, and Feng Yang. Chinese patent Medicine Gushukang Capsule for Osteoporosis: A Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.7.0023.

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Chi, Jingxia. Chinese patent medicine (Jinlong capsule) for gastric cancer: protocol for a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, 2020. http://dx.doi.org/10.37766/inplasy2020.4.0105.

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Zhang, Ying-ying, Ru-yu Xia, Shi-bing Liang, et al. Chinese Patent Medicine Shufeng Jiedu Capsule for Acute Upper Respiratory Tract Infections: A Protocol of a Systematic Review of Randomized Clinical Trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2020. http://dx.doi.org/10.37766/inplasy2020.5.0083.

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Zhang, Xiao-wen, Ru-yu Xia, Xun Li, et al. Chinese patent herbal medicine Shufeng Jiedu capsule as an adjuvant therapy for community-acquired pneumonia: a protocol of systematic review and meta-analysis of randomized clinical trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2020. http://dx.doi.org/10.37766/inplasy2020.6.0102.

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