جستجوی مقالات مرتبط با کلیدواژه « mallampati » در نشریات گروه « پزشکی »

 Airway management of patients with long-standing diabetes poses a major challenge for anaesthesiologists due to stiff joint syndrome affecting the atlanto-occipital joint. In certain cases requiring immobilization, the Mallampati test must often be performed in the supine position for obvious reasons.

 Hence, we determined the diagnostic precision (sensitivity and specificity) of the modified Mallampati test in sitting and supine positions among the diabetic population in predicting difficult tracheal intubation.

 A single-center prospective observational study on adult diabetic patients undergoing general anesthesia and orotracheal intubation was carried out. An observer recorded the modified Mallampati in the sitting posture during the pre-anesthetic examination. The Mallampati in the supine position was determined while in the operating room, and the difficulty of intubation was noted, and diagnostic precision was calculated. The main objective was to predict a difficult airway by calculating the sensitivity, specificity, positive predictive value, and negative predictive value.

 Out of the 150 participants, Mallampati grading in a sitting position was correctly able to identify 42.5% of difficult intubation cases, whereas it was 97.5% with Mallampati in the supine position. Mallampati grading in the sitting position was able to correctly identify 89.1% of easy intubation cases, which was 63.6% with Mallampati in the supine position. The correlation of Mallampati in the supine position with CL grading was statistically significant (P < 0.001).

 Among diabetic patients, the modified Mallampati test in the supine position can be considered a more accurate and sensitive predictor of difficult intubation than the sitting posture.

 Tracheal intubation is a common technique used to secure a patient’s airway, which is crucial in anesthesia. Successful tracheal intubation depends on various factors, including the assessment of the patient’s airway before the procedure. In recent years, scoring systems, such as LEMON (an acronym for the assessment of the airway’s appearance, identification of any dental issues, evaluation of Mallampati classification, assessment of airway obstruction, and examination of neck mobility) and intubation difficulty scale (IDS) have gained attention. This study aimed to investigate the relationship between the LEMON criteria and IDS in tracheal intubation. The goal was to provide valuable insights that can assist medical professionals in optimizing their approach to airway management by analyzing clinical data, assessing patient outcomes, and evaluating the consistency between these scoring systems.

 This study was based on a descriptive-analytical study involving a group of patients requiring intubation. This study examined 105 patients scheduled for elective surgeries, aged between 19 and 60 years, without specific underlying diseases, such as laryngeal cancer, temporomandibular joint stiffness, or significant tongue enlargement, and with a body mass index (BMI) below 40 kg/m². Initially, expert anesthesiologists assessed the patients using the LEMON criteria, and then the degree of intubation difficulty was measured using the IDS scoring system. Finally, these two criteria were compared.

 In this study, there was a significant correlation between the LEMON score and the IDS score (P < 0.001). The difficult intubation group (IDS score higher than 0) had higher LEMON scores (with the highest score equal to 4) than the non-difficult intubation group (IDS score of 0) (P = 0.017). The average LEMON and IDS scores were 3.11 and 1.35, respectively. Among the participants, 96.2% had an intubation difficulty score of ≤ 5; nevertheless, 3.8% had a score of > 5. Additionally, limited neck mobility emerged as the sole independent predictor of intubation difficulty (P = 0.002, odds ratio = 6.152).

 The LEMON score is associated with difficult intubation in adult patients requiring intubation.

Airway safety for difficult intubation or failure to intubate is important during anesthesia. This study assessed the airway before anesthesia, and the diagnostic value of neck circumference (NC) and sternomental distance (SMD) tests was investigated in predicting difficult tracheal intubation during cesarean section. In a cross-sectional study, 101 women who were candidates for cesarean section were selected through the convenience and non-random sampling method. The modified Mallampati test (MMT), upper lip bite (ULBT), thyromental distance (TMD), neck circumference (NC), and sternomental distance (SMD) tests were performed to estimate the laryngoscopy problem. The success rate of airway assessment by SMD and NC was evaluated using the Cormack-Lehane score. Data analysis was performed using the software SPSS version 16.0. TMD (p=0.034) and NC (p<0.001) indicated substantial association with laryngoscopy grades. The sensitivity was 35.29% and 58.82%, and the specificity was 93.93% and 59.09% for NC and SMD. The accuracy, NPV, and PPV of NC was higher than the SMD test (74% vs. 59%, 73.80% vs. 73.58, and 75% vs. 42.55%). The PPV and NPV were 43.63% and 77.77% for TMD. MMT, with high sensitivity (73.52%) and specificity (90.90%), increased the risk of difficult laryngoscopy up to 24-fold when adjusted for TMD, SMD, and NC [p<0.001; OR=24.38 (6.31-94.25)]. Although NC indicated low sensitivity, it had maximum specificity (93.93%) in predicting difficult intubation. High Mallampati grades increase the risk of difficult laryngoscopy. NC presented low predictive values, and SMD and TMD lack predictive values for difficult intubation.

Airway assessment is fundamental skill for anesthesiologists and failure to maintain a patient’s airway is the tremendous cause of anesthesia-related morbidity and mortality. None of the tests which have recommended for predicting difficult intubation stands out to be the best clinical test or have high diagnostic accuracy. Our study aimed to determine the utility of a new test as “laryngoscopic exam test (LET)” in predicting difficult intubation. Three hundred and eleven patients aged 16-60 years participated and completed the study. Airway assessment was carried out with modified Mallampati test, upper lip bit test and LET preoperatively, and Cormack and Lehane's grading of laryngoscopy were assessed during intubation as a gold standard, and difficult laryngoscopy was considered as Cormack and Lehane's grade ΙΙΙ or ΙV of laryngoscopic view. The incidence of difficult intubation was 6.1%. The LET showed higher sensitivity, specificity, and accuracy (P