فهرست نشریات علمی دسترسی آزاد ایران

Background: An endotracheal tube (ETT) plays a critical role in maintaining a secure and open airway, ensuring proper ventilation and oxygenation throughout the surgical procedure. Aim: The present study was conducted with aim to evaluate the impact of endotracheal tube size on post-intubation sore throat and hoarseness in patients undergoing laparoscopic surgeries. Method: This randomized clinical trial was conducted at Ghaem and Imam Reza hospitals in Mashhad, Iran. Patients were randomly allocated into four groups using block randomization: two intervention groups (6.5 mm for males, 6 mm for females) and two control groups (7.5 mm for males, 7 mm for females). We monitored the incidence of sore throat and hoarseness at 1-, 6-, and 24-hours post-surgery. Results: A total of 160 patients (with mean age 45.01 ± 10.33 years) were evaluated. Gender distribution was similar between the two groups (25.6% in control and 25% in intervention group were female). There were no significant differences between the two groups in terms of gender, age, BMI, underlying diseases, duration of surgery, duration of anesthesia, Malampathi score, Cormack-Lehane grade, the use of NG tubes and oral airways, indicating homogeneity. The incidence of hoarseness one hour after surgery was significantly lower in the intervention group (7.5%) compared to the control group (20%) (p<0.05). Additionally, the sore throat at 6 hours post-surgery was significantly lower in the intervention group than in the control group (p<0.05), but was not significant at 1 and 24-h post-surgery. Implications for Practice: Using a smaller tracheal tube size reduces the incidence of sore throat and hoarseness after laparoscopic surgery.