Effect of Lung Recruitment Maneuvers on Reduction of Atelectasis Determined by Lung Ultrasound in Patients More Than 60 Years Old Undergoing Laparoscopic Surgery for Colorectal Carcinoma: A Prospective Study at a Single Center

18 January 2021: Clinical Research

Yujiao Yang ^1ABCDEFG , Yuan Geng ^1BC , Donghang Zhang ^2E , Yong Wan ^1E , Rurong Wang ^2CEFG*

DOI: 10.12659/MSM.926748

Med Sci Monit 2021; 27:e926748

Table 2 Postoperative pulmonary complications.

	C group, n=20	RM group, n=20	P value
Length of stay in PACU (min)	63.5±13.90	67.8±16.30	0.381^*
Hospital stay (day)	18.0±5.70	18.3±6.80	0.900^*
Postoperative lung complications (±)	8/12	7/13	>0.99^**
Respiratory failure^a
Mild	4/16	3/17	>0.99^**
Moderate	1/19	1/19	>0.99^**
Bronchospasm	1/19	2/18	>0.99^**
Pulmonary infection	2/18	1/19	>0.99^**
PACU – postanesthesia care unit; C – control; RM – recruitment maneuver. ^a Defined as an arterial partial pressure of oxygen less than 60 mmHg or peripheral oxygen saturation as measured by pulse oximetry less than 90% while breathing at least 10 min of room air (beach chair position), excluding hypoventilation. Patients responding to 2 L or less of supplemental oxygen were classified as having mild failure; responding only to greater than 2 L of oxygen, moderate failure. ^* test comparing differences within the individual study groups; ^** Fisher’s exact test for comparisons between the 2 groups.