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Obstructive sleep apnea as a risk factor after shoulder arthroplasty

https://doi.org/10.1016/j.jse.2013.06.003Get rights and content

Background

Obstructive sleep apnea (OSA) has been identified as an important risk factor in perioperative orthopaedic surgery outcomes despite limited evidence. Screening systems are being instituted in increasing frequency to prevent morbidity and mortality. Our objective was to determine if patients with OSA have a higher likelihood of postoperative in-hospital complications, length of stay, or increased costs after shoulder arthroplasty.

Methods

We utilized the Nationwide Inpatient Sample (NIS) to analyze 22988 patients undergoing TSA or hemiarthroplasty. Of these patients, 1983 (5.9%) were diagnosed with OSA. Multivariate analysis with logistic regression modeling was used to compare patients with and without OSA for various outcomes.

Results

Patients with obstructive sleep apnea had overall similar in-hospital mortality and complications including PE compared with those without OSA. OSA was not associated with increased postoperative charges ($39,741 in patients with OSA vs $39,334 in those without OSA) and resulted in a shorter length of stay (mean, 2.61 vs 2.91 days; P < .0001).

Conclusion

This study does not support OSA as a significant risk factor for in-hospital morbidity and mortality following shoulder arthroplasty. Our results suggest that a diagnosis of OSA does not increase perioperative morbidity and mortality including perioperative complications. Given the results of this study, further research is warranted to attempt to keep patient screening costs down while optimizing outcomes.

Section snippets

Methods

The Nationwide Inpatient Sample (NIS) is a survey of hospitals conducted by the federal Healthcare Cost and Utilization Project, which has been deemed statistically valid.1 Based on a random inclusion of 20% of the nation's hospitals, the numbers from these hospitals are then weighted or extrapolated to produce national estimates. We used the NIS to identify 22,996 patients who underwent total shoulder arthroplasty and hemiarthroplasty in the United States between January 1, 2005 and December

Results

In-hospital mortality for patients with OSA was similar to those without a diagnosis of OSA (odds ratio, 1.083). Mortality occurred in 54 patients overall and in 2 patients with OSA. Overall mortality data was analyzed using regression analysis (Table I).

In-hospital complications in patients without OSA compared to those with OSA was similar on all fronts (Table II). Of the entire sample, 88 patients developed a pulmonary embolism (PE). Four patients with OSA developed a PE (4.5% of all

Discussion

Screening programs for obstructive sleep apnea are being increasingly instituted as a component of hospital policies and becoming part of standard preoperative testing.9 This is in large part a response to the reported complications in surgical patients with a diagnosis of OSA undergoing hip and knee replacement.3, 11 Perioperative mortality after shoulder arthroplasty has been reported as low.13 With this rising trend in testing, it seems prudent to evaluate whether blanket application is

Conclusion

This study does not support OSA as a significant risk factor for in-hospital morbidity and mortality following shoulder arthroplasty. This may be due to increased monitoring in those patients carrying a diagnosis of OSA. However, in-hospital costs do not appear to be higher for OSA patients. Additionally length of stay in patients with OSA was shorter. This information may be helpful for risk-benefit counseling in patients concerned about OSA status. Further analysis is need in a prospective

Disclaimer

None of the authors, their immediate family, nor any research foundation with which they are affiliated received any financial payments or other benefits from any commercial entity related to the subject of this article.

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  • Healthcare utilization after elective surgery in patients with obstructive sleep apnea – analysis of a nationwide data set

    2021, Sleep Medicine
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    Nevertheless, we found that despite the increased presence of these comorbidities, the length of stay during the index surgery was not significantly increased. Similar to our study, at least two prior studies [18,19], but not all [20], in orthopedic surgical patients have demonstrated that the length of stay on patients with OSA was lower than those without OSA. We speculate that the length of stay is similar to controls due to increased awareness of OSA related perioperative complications in the community.

  • Tobacco use predicts a more difficult episode of care after anatomic total shoulder arthroplasty

    2018, Journal of Shoulder and Elbow Surgery
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    This finding is of particular interest in that it identified a risk factor that is modifiable. Previous studies have identified risk factors such as diabetes, obstructive sleep apnea, congestive heart failure, renal failure, age, female sex, and chronic pulmonary disease that lead to increased hospital stays, readmissions, complications, and thus an increased cost burden.2,11,12,20,26,35 Recognizing tobacco use as a modifiable risk factor is important because it allows improved preoperative counseling.

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This study was exempt from IRB Ethical Committee approval.

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