International Journal of Clinical Research

Objective: To investigate the effect of sputum suction depth calibration on the prevention of airway mucosal injury in elderly patients with mechanical ventilation. Methods The basic data of 47 elderly patients with mechanical ventilation who visited our hospital from December 2020 to December 2021 were retrospectively analyzed, and they were randomly divided into control group and observation group. After entering the catheter, the sputum suction tube was lifted 1 cm out when encountering resistance. The observation group of 24 cases was the deep suction group. After entering the catheter, the sputum suction tube was lifted back 1 cm when encountering resistance. The suction effect and the degree of airway mucosal damage were compared between the two groups. Results There was no significant difference in the airway mucosal injury and CPIS score in the observation group on the 1st day after tracheal intubation (P>0.05). Cardiopulmonary indexes were higher than those in the control group (P<0.05), and the incidence of airway mucosal injury and CPIS score were lower than those in the control group (P<0.05). Conclusion The sputum suction depth calibration can be used as an index to prevent the airway mucosa of elderly patients with mechanical ventilation. Studies have shown that the superficial sputum suction effect is good, and the patients have no obvious adverse reactions.

Calibration of Sputum Suction Depth; Mechanical Ventilation In The Elderly; Airway Mucosal Injury