Failure-to-pursue rescue: explaining excess mortality in elderly emergency general surgical patients with preexisting "do-not-resuscitate" orders.

Abstract:

OBJECTIVE:To describe the outcomes of elderly patients with do-not-resuscitate (DNR) status who undergo emergency general surgery and to improve understanding of the relationship between preoperative DNR status and postoperative mortality. BACKGROUND:Preoperative DNR status has previously been shown to predict increased postoperative mortality, although the reasons for this association are not well understood. METHODS:Patients 65 years or older undergoing emergency operation for 1 of 10 common general surgical diagnoses were extracted from the 2005-2010 National Surgical Quality Improvement database. Propensity score techniques were used to match patients with and without preoperative DNR orders on indication for procedure, patient demographics, comorbid disease burden, acute physical status at the time of operation, and procedure complexity. The postoperative outcomes of this matched cohort were then compared. RESULTS:A total of 25,558 patients were included for analysis (DNR, n =1061; non-DNR, n =24,497). DNR patients seemed to be more acutely and chronically ill than non-DNR patients in the overall study sample but did not seem to be treated less aggressively before or during their operations. Propensity-matching techniques resulted in the creation of a cohort of DNR and non-DNR patients who were well matched for all preoperative and intraoperative variables. DNR patients from the matched cohort had a significantly higher postoperative mortality rate than non-DNR patients (36.9% vs 22.3%, P < 0.0001) despite having a similar rate of major postoperative complications (42.1% vs 40.2%, P = 0.38). DNR patients in the propensity-matched cohort were much less likely to undergo reoperation (8.3% vs 12.0%, P = 0.006) than non-DNR patients and were significantly more likely to die in the setting of a major postoperative complication (56.7% vs 41.4%, P = 0.001). CONCLUSIONS:Emergency general surgery in elderly patients with preoperative DNR orders is associated with significant rates of postoperative morbidity and mortality. One reason for the excess mortality in these patients, relative to otherwise similar patients who do not have preoperative DNR orders, may be their greater reluctance to pursue aggressive management of major complications in the postoperative period.

journal_name

Ann Surg

journal_title

Annals of surgery

authors

Scarborough JE,Pappas TN,Bennett KM,Lagoo-Deenadayalan S

doi

10.1097/SLA.0b013e31826578fb

subject

Has Abstract

pub_date

2012-09-01 00:00:00

pages

453-61

issue

3

eissn

0003-4932

issn

1528-1140

journal_volume

256

pub_type

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