Alveolar Recruitment Maneuvers on Reduction of Lung Atelectasis in Bariatric Surgery by Using Lung Ultrasound Score

Alveolar Recruitment Maneuvers, Atelectasis, Bariatric Surgery

The study aims to compare the staircase alveolar recruitment maneuver with PEEP titration versus sustained inflation alveolar recruitment maneuver by using lung ultrasound score as an indicator of improving lung atelectasis in bariatric surgery

Weight loss surgery, often known as bariatric surgery, is an effective obesity treatment. Most people undergoing such surgery may show an improvement in, or the resolution of, conditions such as diabetes, dyslipidemia, hypertension, and obstructive sleep apnea. Currently, there is no standard ventilation strategy has been established for obese patients. However, there is some evidence that recruitment maneuvers (RM) combined with protective lung ventilation strategy improve oxygenation and compliance compared to other strategies. Alveolar recruitment maneuver refers to the periodic hyperinflation of the lungs that has been utilized to open up the lung and keep the lung open in anesthetized patients. The use of recruitment maneuvers has been shown to reduce the incidence and extent of atelectasis during general anesthesia by different methods. Lung ultrasonography is considered a useful tool in perioperative care. Recent research showed that lung ultrasound could assess lung aeration and diagnose anesthesia-induced atelectasis accurately in the perioperative period by measuring the extent of atelectasis by the scoring system; also, the response to recruitment manoeuver for each patient can be evaluated easily. Thus, it has great potential as a bedside non-invasive, sensitive tool for guiding effective recruitment manoeuvers to reduce the formation of pulmonary atelectasis in the surgical setting

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