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Interhospital transfer for intact abdominal aortic aneurysm repair.

Abstract：

OBJECTIVE:Medically complex patients who need abdominal aortic aneurysm (AAA) repair are at increased risk of mortality. We study the effects of interhospital transfer to high-volume hospitals (HVHs) on postoperative complications and mortality after complications in these patients. METHODS:Data for 491,779 patients undergoing intact AAA surgery were extracted using Medicare files. Patient demographics, comorbidities, hospital volume, repair type, and patient transfer status were collected. Primary outcomes were postoperative complications and failure to rescue within 30 days after surgery. Data were analyzed using multivariable and propensity analysis. RESULTS:From 2000 to 2011, the percentage of patients transferred to another hospital for surgery before starting treatment more than doubled from .7% to 1.9% for endovascular aneurysm repair (EVAR; P < .001) and from 1.2% to 3.7% for open repair (P < .001). At baseline, transferred patients had more congestive heart failure (18.7% vs 11.2%; P < .001), coronary (17.4% vs 15.0%; P < .001), pulmonary (38.3% vs 33.6%; P < .001), and renal failure (8.1% vs 4.6%; P < .001) comorbidities. Transferred patients incurred more complications after EVAR (25.1% vs 12.8%; P < .001) or open repair (42.3% vs 35.5%; P < .001). After propensity matching for comorbidities and demographics, there were fewer complication rates (40.4% vs 47.8%; P < .001) and decreased failure to rescue (5.5% vs 6.5%; P = .04) after open repair in patients transferred to HVHs than in patients who remained at the primary, low-volume hospital for surgery. Complication rates after EVAR for nontransferred patients at low-volume hospitals and transferred patients at HVHs were similar (23.9% vs 24.7%; P = .55). After propensity matching, there was no significant difference in failure to rescue (P = .06) after EVAR between patients transferred to HVHs and nontransferred patients who had procedures at low-volume hospitals. CONCLUSIONS:Transfer of medically complex patients to HVHs for open AAA repair improves outcomes in AAA surgery. Complication rates decrease, and survival of transferred patients increases when they undergo open repair at HVHs.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Ilonzo N,Egorova NN,Nowygrod R

doi

10.1016/j.jvs.2015.10.068

subject

Has Abstract

pub_date

2016-04-01 00:00:00

pages

859-65.e2

issue

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(15)02195-3

journal_volume

pub_type

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Interhospital transfer for intact abdominal aortic aneurysm repair.