In addition to efforts aimed at avoiding complications in the first place, reducing mortality associated with inpatient surgery will require greater attention to the timely recognition and management of complications once they occur.

Reducing variations in mortality will require strategies to improve the ability of high-mortality hospitals to manage postoperative complications.

Differences in mortality between high and low-volume hospitals are not associated with large differences in complication rates. Instead, these differences seem to be associated with the ability of a hospital to effectively rescue patients from complications. Strategies focusing on the timely recognition and management of complications once they occur may be essential to improving outcomes at low-volume hospitals.

The study shows that chronically increased hepatic venous pressure from the Fontan procedure might lead to chronic passive congestion, cardiac cirrhosis, hepatic adenoma, and hepatocellular carcinoma.

Background It is generally accepted that hospital volume is associated with mortality in high-risk procedures. However, as surgical safety has improved over the last decade, recent evidence has suggested that the inverse relationship has diminished or been eliminated. Objective To determine whether the relationship between hospital volume and mortality has changed over time. Methods Using national Medicare claims data from 2000 through 2009, we examined mortality among 3,282,127 patients who underwent one of eight gastrointestinal, cardiac, or vascular procedures. Hospitals were stratified into quintiles of operative volume. Using multivariable logistic regression models to adjust for patient characteristics, we examined the relationship between hospital volume and mortality, and assessed for changes over time. We performed sensitivity analyses using hierarchical logistic regression modeling with hospital-level random effects to confirm our results. Results Throughout the ten-year period, a significant inverse relationship was observed in all procedures. In five of the eight procedures studied, the strength of the volume-outcome relationship increased over time. In esophagectomy, for example, the adjusted odds ratio of mortality in very low volume hospitals compared to very high volume hospitals increased from 2.25 [95%CI: 1.57-3.23] in 2000-2001 to 3.68 [95%CI: 2.66-5.11] in 2008-2009. Only pancreatectomy showed a notable decrease in strength of the relationship over time, from 5.83 [95%CI: 3.64-9.36] in 2000-2001, to 3.08 [95%CI: 2.07 - 4.57] in 2008-2009. Conclusion For all procedures examined, higher volume hospitals had significantly lower mortality rates compared to lower volume hospitals. Despite recent improvements in surgical safety, the strong inverse relationship between hospital volume and mortality persists in the modern era.

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One half of unanticipated tracheal intubations in a period of 30 days occurred within the first 3 days after nonemergent, noncardiac surgery and were independently associated with a 9-fold increase in mortality. The authors present a validated perioperative risk class index for determining risk of unanticipated early postoperative intubation.

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