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Anesthesiol Res Pract. 2016;2016:9425936. doi: 10.1155/2016/9425936. Epub 2016 Aug 16.

Length of Stay in Ambulatory Surgical Oncology Patients at High Risk for Sleep Apnea as Predicted by STOP-BANG Questionnaire.

Author information

1
Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
2
Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
3
Department of Anesthesia and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
4
Divisions of Pulmonary, Critical Care and Sleep Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA.

Abstract

BACKGROUND:

The STOP-BANG questionnaire has been used to identify surgical patients at risk for undiagnosed obstructive sleep apnea (OSA) by classifying patients as low risk (LR) if STOP-BANG score < 3 or high risk (HR) if STOP-BANG score ≥ 3. Few studies have examined whether postoperative complications are increased in HR patients and none have been described in oncologic patients.

OBJECTIVE:

This retrospective study examined if HR patients experience increased complications evidenced by an increased length of stay (LOS) in the postanesthesia care unit (PACU).

METHODS:

We retrospectively measured LOS and the frequency of oxygen desaturation (<93%) in cancer patients who were given the STOP-BANG questionnaire prior to cystoscopy for urologic disease in an ambulatory surgery center.

RESULTS:

The majority of patients in our study were men (77.7%), over the age of 50 (90.1%), and had BMI < 30 kg/m(2) (88.4%). STOP-BANG results were obtained on 404 patients. Cumulative incidence of the time to discharge between HR and the LR groups was plotted. By 8 hours, LR patients showed a higher cumulative probability of being discharged early (80% versus 74%, P = 0.008).

CONCLUSIONS:

Urologic oncology patients at HR for OSA based on the STOP-BANG questionnaire were less likely to be discharged early from the PACU compared to LR patients.

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