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Braz J Anesthesiol. 2015 Sep-Oct;65(5):359-66. doi: 10.1016/j.bjane.2014.02.008. Epub 2014 Mar 12.

Adverse respiratory events after general anesthesia in patients at high risk of obstructive sleep apnea syndrome.

Author information

1
Department of Anaesthesiology, Centro Hospitalar de São João, Porto, Portugal.
2
Department of Anaesthesiology, Centro Hospitalar de São João, Porto, Portugal; Anaesthesiology and Perioperative Care Unit, Faculdade de Medicina, Universidade do Porto, Porto, Portugal; Surgical Department of Faculty of Medicine, University of Porto, Portugal. Electronic address: fernando.abelha@gmail.com.

Abstract

INTRODUCTION:

Patients with STOP-BANG score >3 have a high risk of Obstructive sleep apnea. The aim of this study was to evaluate early postoperative respiratory complications in adults with STOP-BANG score >3 after general anesthesia.

METHODS:

This is a prospective double cohort study matching 59 pairs of adult patients with STOP-BANG score >3 (high risk of obstructive sleep apnea) and patients with STOP-BANG score <3 (low risk of obstructive sleep apnea), similar with respect to gender, age and type of surgery, admitted after elective surgery in the Post-Anaesthesia Care Unit in May 2011. Primary outcome was the development of adverse respiratory events. Demographics data, perioperative variables, and postoperative length of stay in the Post-Anesthesia Care Unit and in hospital were recorded. The Mann-Whitney test, the chi-square test and the Fisher exact test were used for comparisons.

RESULTS:

Subjects in both pairs of study subjects had a median age of 56 years, including 25% males, and 59% were submitted to intra-abdominal surgery. High risk of obstructive sleep apnea patients had a higher median body mass index (31 versus 24kg/m(2), p<0.001) and had more frequently co-morbidities, including hypertension (58% versus 24%, p<0.001), dyslipidemia (46% versus 17%, p<0.001) and insulin-treated diabetes mellitus (17% versus 2%, p=0.004). These patients were submitted more frequently to bariatric surgery (20% versus 2%, p=0.002). Patients with high risk of obstructive sleep apnea had more frequently adverse respiratory events (39% versus 10%, p<0.001), mild to moderate desaturation (15% versus 0%, p=0.001) and inability to breathe deeply (34% versus 9%, p=0.001).

CONCLUSION:

After general anesthesia high risk of obstructive sleep apnea patients had an increased incidence of postoperative respiratory complications.

KEYWORDS:

Apneia obstrutiva do sono; Desfecho no pós-operatório; Eventos respiratórios; Obstructive sleep apnea; Postoperative outcome; Respiratory events

PMID:
26323734
DOI:
10.1016/j.bjane.2014.02.008
[Indexed for MEDLINE]
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