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Academic literature on the topic 'Upper lip bite test (ULBT)'
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Journal articles on the topic "Upper lip bite test (ULBT)"
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S, Ajanth, Vinayak Sirsat, S. Chauhan, and Deepak M. Kokane. "Comparative Study of Upper Lip Bite Test and Modified Mallampatti Classification in Predicting Difficult Endotracheal Intubation." Indian Journal of Anesthesia and Analgesia 8, no. 6 (2021): 563–69. http://dx.doi.org/10.21088/ijaa.2349.8471.8621.82.
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Objective: To compare sensitivity, specificity, positive and negative predictive values of upper lip bite test and modified mallampatti test to predict difficulty in endotracheal intubation in patients between 16 to 55 years of age. Methods: One hundred ASA1/2 patients admitted for elective surgical procedure requiring endotracheal intubation were prospectively studied to predict difficult intubation in age group 16-55 years of age after obtaining an informed consent. Preoperative Airway assessment was done with modified mallampatti test and upper lip bite test. Results: In our study, eighty four had Upper lip bite test (ULBT) class I and II and sixteen patients had class III. Of these two ofthe ULBT class Iand II and five of the ULBTclassIII had Cormack Lehane grade III . There were one hundred patients predicted to be easy for intubation by MMT (i.e. patients who had ULBT class I and II) out of whom however, we encountered difficult intubation in 6 patients. One in MMT class III also had difficult intubation. None of the patients had class IV MMT.Of the entire one hundred patients, a total of seven patients had difficult intubation, all of whom had Cormack Lehane class III on laryngoscopy. Conclusion: Upper Lip Bite Test (ULBT)is a better test at predicting difficult endotracheal intubation when compared toModified Mallampati Test (MMT). Upper lip bite test and modified mallampatti classification are good predictors of easy intubation rather than difficult intubation. Upper lip bite test should be used in combination with other airway assessment methods viz. Thyromental distance, hyomental distance, inter incisor distance to predict difficult intubation.
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Bukhari, Dr Sadaf, Dr Aaifa Khalid Niazi, and Dr Hajra Shuja. "ACCURACY OF UPPER LIP BITE TEST IN PREDICTING DIFFICULT AIRWAY." Professional Medical Journal 25, no. 12 (2018): 1966–71. http://dx.doi.org/10.29309/tpmj/18.496.
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INTRODUCTION: Various anatomical measurements and non‑invasive clinical tests can be performed to predict difficult intubation. Recently introduced “Upper lip bite test” (ULBT) is claimed to have a high predictability. However, limited data exists to support its high predictability both nationally and internationally.
 OBJECTIVE: To determine the diagnostic accuracy of upper lip bite test in the prediction of difficult airway.
 METHODOLOGY: This was a cross sectional study. A sample of 283 patients was calculated by using WHO sample size calculator and sampling was done by non-probability consecutive sampling. All the selected patients were assessed for upper lip bite test and Cormack and Lehane laryngoscopy grade separately. Data was collected on pre-designed proforma. Accuracy of ULBT was calculated based on the acquired data.
 RESULTS: The calculated accuracy of ULBT for predicting difficult airway was found to be 91.2%.
 CONCLUSION: ULBT is a reliable bedside technique with a high accuracy for predicting a difficult airway.
 KEY WORDS: Upper lip bite test, Cormack and Lehane scale, difficult airway.
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Koirala, Sabin, Bigen Man Shakya, and Moda Nath Marhatta. "Comparison of Upper Lip Bite Test with Modified Mallampati Test and Thyromental Distance for Prediction of Difficult Intubation." Nepal Journal of Medical Sciences 5, no. 1 (2020): 2–9. http://dx.doi.org/10.3126/njms.v5i1.36792.
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Introduction: The prediction of difficult intubation using simple bedside test is of great importance to prevent mismanagement of airway. This study was conducted to compare Upper Lip Bite Test (ULBT) with Modified Mallampati Test (MMT) and Thyromental Distance (TMD) for the prediction of difficult intubation.
 Method: This was descriptive cross-sectional study conducted in 121 patients of American Society of Anaesthesiologists Physical Status (ASA PS) I and II patients scheduled for elective surgery requiring general anaesthesia with endotracheal tube. The airway assessment of the patients was done one day prior to the surgery using Upper Lip Bite Test (ULBT), Modified Mallampati Test (MMT) and measurement of Thyromental Distance (TMD) . On the day of surgery during laryngoscopy, Cormack-Lehane (CL) grading was recorded. The CL grading of III and IV was labeled as difficult intubation. The Sensitivity, Specificity, Positive Predictive Value (PPV), Negative Predictive Value (NPV), Likelihood Ratio (LR) of ULBT, MMT and TMD were calculated and compared.
 Results: The total percentage of difficult intubation, defined by Cormack-Lehane (CL) III and IV was 16.52 %. The sensitivity, specificity, PPV, NPV and accuracy of Upper Lip Bite Test (ULBT) was 50%, 100%, 100%, 91% and 91.74% respectively. ULBT had a significantly higher sensitivity, specificity and PPV when compared to MMT or TMD or MMT and TMD when combined together.
 Conclusions: Upper Lip Bite Test (ULBT) is better predictor of difficult intubation and it should be used along with other test during airway assessment.
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CHOHEDRI, ABDUL-HAMEED, MASOOMEH TABARI, and ELAHE ALLAHYARI. "THE UPPER LIP BITE TEST." Professional Medical Journal 12, no. 04 (2005): 440–45. http://dx.doi.org/10.29309/tpmj/2005.12.04.5097.
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Objective: We conducted a prospective, double-blind study todetermine whether a difficult endotracheal intubation could be predicted preoperatively by a simple new technique, theupper lip bite test and compared it with three other tests used for prediction of difficult intubation: Modified Mallampaticriteria (MMC), Thyromental distance (TM) and Mouth opening (MO). Materials and Methods: Five hundred patients,aged above 16 years, and presenting for elective surgery were subjected to the following assessments: (1) Upper lipbite test (ULBT), class I: lower incisors can bite the upper lip above the vermilion line; class II: lower incisors can bitethe upper lip below the vermilion line; class III: lower incisors cannot bite the upper lip; (2) Oropharyngeal classaccording to the MMC. (3) The distance between the chin and thyroid cartilage (thyromental distance). (4) Extend ofmaximum mouth opening test. Results: ULBT had significantly higher accuracy (96%) and specificity (98.3%) and thelowest rate of false positive (p< 0.001). The most sensitive test was the TM test (42%). Conclusion: We concludedthat comparison of the three tests, UPBT has sufficient value in predicting difficult intubation in adults
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Dawood, Ahmed Salam, Bashar Zuhair Talib, and Istabraq Sadoon Sabri. "PREDICTION OF DIFFICULT INTUBATION BY USING UPPER LIP BITE, THYROMENTAL DISTANCE AND MALLAMPATI SCORE IN COMPARISON TO CORMACK AND LEHANE CLASSIFICATION SYSTEM." Wiadomości Lekarskie 74, no. 9 (2021): 2305–14. http://dx.doi.org/10.36740/wlek202109211.
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The aim: To evaluate efficacy of Modified Mallampati test (MMT), upper lip bite test (ULBT) and Thyromental distance (TMD) or combination of two method Modified Mallampati test (MMT)+ upper lip bite test (ULBT), Thyromental distance (TMD) + upper lip bite test (ULBT) in prediction of difficult intubation in patients undergoing GA. Materials and methods: Three tests were carried out in all patients by a single anesthesiologist. These were MMT, ULBT and TMD. Laryngoscopy was performed with patient’s head in the sniffing position. The laryngoscopy view was graded according to modified Cormack and Lehane classification system. Study was prospective, single cross sectional, in 151 adult patients who required GA with endotracheal intubation for elective surgery. On arrival in the operating room, routine monitoring and venous cannula were introduced. Midazolam, Fentanyl. and rocuronium, ketamine , propofol were given to facilitate endotracheal intubation. Results: Out of 150 assessed patients, 18 (12%) had difficult intubation. Of those 18 patients, 17 (83.33%) patients had Cormack and Lehane classification III and one patient (16.67%) had classification IV. Compared with Cormack and Lehane classification system as the gold standard for difficult intubation, the sensitivity and specificity of MMT was 66.67% and 96.97% respectively, while ULBT had a sensitivity of 77.78% and a specificity of 93.18%, and TMD had a sensitivity of 55.56% and specificity of 94.97% respectively. A combination of different tests improved their efficiencies. The sensitivity and specificity MMT and TMD combinations was 77.78% and 92.42% respectively, while it was 88.89% and 93.18%, respectively for MMT and ULPT. The combination of TMD and ULBT has a sensitivity of 88.33% and a specificity of 91.67%. Conclusions: Upper lip biting test has the best sensitivity while MMT had the best specificity. No single test alone can be reliable for predicting of difficult intubation. The combination of ULBT and MMT was the best in terms of both sensitivity and specificity for prediction of difficult intubation.
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ATIF, MUHAMMAD, MUHAMMAD ABDULLAH, MUHAMMAD JAVAD YOUSAF, and Khalid Buland. "ACCURACY OF THE UPPER LIP BITE TEST;." Professional Medical Journal 20, no. 01 (2012): 132–38. http://dx.doi.org/10.29309/tpmj/2013.20.01.589.
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Objective: To compare the accuracy of Upper lip bite test with modified Mallampati classification for predicting the difficultlaryngoscopic intubation. Study Design: Cross sectional Study. Place and duration of study: The study was carried out at Department ofAnaesthesiology, Intensive Care and Pain management, Combined Military hospital, Rawalpindi from September 2008 to August 2009.Patients and Methods: Four hundred patients undergoing elective surgery meeting the inclusion/exclusion criteria were enrolled afterwritten informed consent. The airways of the patients were evaluated by using the modified Mallampati classification (MMP) and theUpper lip bite test (ULBT). MMP class 3 or 4 and ULBT class 3 were considered as indicators of difficult intubation. The laryngeal view wasgraded by Cormack and Lehane classification (Gold standard). Grade 1 or 2 was considered to represent easy intubation and grade 3 or 4to represent difficult intubation. Sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy werecalculated for both the tests separately by using the 2×2 table. Results: ULBT had a higher accuracy of 94%, specificity of 99.2% andpositive predictive value 70% compared to MMP accuracy of 82.7%, specificity of 84.4% and positive predictive value of 22.7%.Conclusions: The diagnostic accuracy of the Upper lip bite test was more than the modified Mallampati classification. We suggest that itbe compared with the other prevailing tests as well which are often used to assess difficult intubations.
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Thomas, Monish, and Nichelle M. Saldanha. "Comparison of Upper Lip Bite Test with Modified Mallampati Score in Predicting Difficult Intubation." International Journal of Science and Healthcare Research 7, no. 1 (2022): 1–8. http://dx.doi.org/10.52403/ijshr.20220101.
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Background and Aims: Identifying a patient with a difficult airway is important in planning anaesthetic management so that endotracheal intubation can be achieved safely. This study aims to compare modified Mallampati score with Upper Lip Bite Test to predict difficult intubation using intubation difficulty scale. Materials and methods: A prospective study was carried on 104 patients, both sexes aged between 18 to 60 years scheduled for elective surgeries under general anaesthesia fulfilling inclusion and exclusion criteria. Patient airway was evaluated by MMT and ULBT preoperatively. Predictors of difficult endotracheal intubation were assigned to MMT class III and IV, ULBT class III. After premedication and induction laryngoscopy was performed. After successful intubation Intubation difficulty score was noted down based on the sum of seven assessing parameters. A score >5 was considered difficult intubation. Results: The incidence of difficult intubation in the study was 10.6% (i.e. 11 out of 104 patients). In this study ULBT had a higher sensitivity (90.9% v/s 18.20%), specificity (95.7% v/s 75.3%) PPV (71.4% v/s 8%) and NPV (98.9% v/s 88.6%) than that of MMT Conclusion: Upper lip bite test is better at predicting difficult intubation with higher accuracy when compared to Modified Mallampati test. Both the tests are good predictors of easy intubation. Keywords: Upper Lip Bite Test (ULBT), Modified Mallampati test (MMT), Intubation Difficulty scale (IDS), airway assessment. Difficult intubation prediction, Difficult airway
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Maji, Chaity. "Difficult airway Assessment: Comparison of Upper Lip Bite Test (ULBT) and Modified Mallampati Test (MMT)." Indian Journal of Anesthesia and Analgesia 4, no. 4 (Part-1) (2017): 969–73. http://dx.doi.org/10.21088/ijaa.2349.8471.4417.9.
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F, Javaher Foroosh Zadeh, and Safaii Sara. "Comparison of four methods for predicting difficult intubation." International Journal of Bioassays 5, no. 01 (2016): 4720. http://dx.doi.org/10.21746/ijbio.2016.01.005.
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Confirmation of endotracheal tube appointment is of critical importance, since unrecognized esophageal intubation can be rapidly lethal (death, brain damage). The aim of our study was to compare four different methods for prediction of difficult intubation: Mallampati, Thyro-mental distance, ULBT (Upper Lip Bite Test), and Inter incisicor gap. In a prospective study, 448 patients with a mean age of 53.5 who were scheduled for elective surgery were selected randomly and enrolled. Before induction of anesthesia, the airways were assessed by Mallampati test, Thyro mental distance, Upper lip bit test(ULBT) and Inter incisor gap. Laryngoscopic view according to the Cormack and Lehane grading system was determined after induction of anesthesia and Grades 3 and 4 defined as “difficult intubation.” Degree of observed difficulty of intubation was compared to predicted values. Sensitivity, specificity, positive and negative predictive values and accuracy of these tests and their combinations with the ULBT were calculated. Statistical analysis was performed using SPSS version 16. Data were analysis by using Fishers exact and McNemar's test, and a Pvalue. <0.05 was considered statistically significant. The prevalence of difficult intubation Cormack-Lehane in this study was 8.4%, Mallampati test had the highest sensitivity (47.3%) and Thyro-mental distance was most specific (96%). The ULBT (upper lip bite tests) had most positive and negative predictive value (37.9% & 93. 5%).Data also showed that power of these tests in predicting easy intubation is more than their ability in assessing the likelihood of difficult intubation. There was no significant difference regarding difficult intubation based on gender (P < 0.05), whereas there were significant differences between the older tests and laryngeal view (P < 0.05, Mc-Nemar test). Despite the validity of MMP, TMD, ULBT and IIG in predicting easy intubation is much greater than the value in prediction of difficult intubation; however, the simplicity of performing these tests and results of the four tests in evaluating patients before surgery by combination of tests in predicting difficult intubation will likely safe. It seems that best results are from applying combined test than a single one.
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Gauchan, Sabin, Chitra Thapa, Sulav Acharya, and Sanam Dangol. "A comparison of ratio of patient’s height to thyromental distance with modified mallampati test and upper lip bite test for prediction of difficult laryngoscopy." Nepal Medical College Journal 25, no. 4 (2023): 335–40. http://dx.doi.org/10.3126/nmcj.v25i4.60923.
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Various airway evaluation tests are performed to predict difficult intubation. The ratio of Height to thyromental distance has been reported to have a good predictability. This study tested the performance of ratio of height to thyromental distance and compared it with commonly performed airway evaluation tests: the modified Mallampati test and upper lip bite test. This descriptive study was conducted in 120 patients presenting for surgery under general anesthesia with endotracheal intubation. Preoperative airway assessment was done using Modified Mallampati test, upper lip bite test and ratio of height to thyromental distance. The Cormack and Lehane grading was done during laryngoscopy to determine easy or difficult visualization of larynx. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy of three tests were calculated. Difficult laryngoscopy was seen in 9 patients (7.5%). The sensitivity, specificity, positive predictive value, negative predictive value respectively for the tests were modified Mallampati test (22.2%, 89.2%, 14.3% and 93.4%), upper lip bite test (22.2%, 100%, 100% and 94.1%), ratio of height to thyromental distance (77.8%, 95.5%, 58.3% and 94.16%). In conclusion, we found that the ratio of patient’s height to thyromental distance performed better than MMT and ULBT in predicting difficult visualization of larynx in our population.
Book chapters on the topic "Upper lip bite test (ULBT)"
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Sinharay, Madhurima, and Rashmee V. Chavan. "A Comparative Overview of Upper Lip Bite Test and Modified Mallampati Test: Approach to Predict Difficult Intubation." In Issues and Developments in Medicine and Medical Research Vol. 8. Book Publisher International (a part of SCIENCEDOMAIN International), 2022. http://dx.doi.org/10.9734/bpi/idmmr/v8/15423d.
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