OBJECTIVE: The use of fenestrated and branched stent graft technology for paravisceral abdominal aortic aneurysms (PAAA) is on the rise; however, its application is limited in the United States to only a few selected centers. Most PAAAs are currently repaired using an open approach. The objective of this study was to determine which patients are at highest risk with open PAAA repair and might benefit most from endovascular repair using fenestrated or branched stent grafts. METHODS: This was a retrospective cohort study using data from American College of Surgeons National Surgical Quality Improvement Program (NSQIP) hospitals. We identified 598 patients (27.5% women) who underwent elective open PAAA repair from the 2007 to 2009 NSQIP, a prospective database maintained at >250 centers. The main outcome measure was 30-day postoperative mortality. RESULTS: The median patient age was 73 years. The 30-day major morbidity rate was 30.1%, and the mortality rate was 4.5%. Major complications included reintubation (10.0%), sepsis (10.7%), return to operating room (9.2%), new dialysis requirement (5.9%), cardiac arrest or myocardial infarction (4.5%), and stroke (1.2%). Multivariate analyses identified four predictors of postoperative mortality after open PAAA repair: peripheral arterial disease (PAD) requiring revascularization or amputation, chronic obstructive pulmonary disease (COPD), anesthesia time, and female sex. PAD and COPD were present in only 5.2% and 20.4% of patients but were associated with a 16.1% and 9.0% mortality rate, respectively. The mortality rate in women was 7.3% vs 3.5% for men (P = .045). CONCLUSIONS: PAD, COPD, and female sex are major risk factors for postoperative mortality after open PAAA repair. Fenestrated or branched stent graft repair may be a more valuable alternative to open repair for patients with one or more of these characteristics who have suitable access vessels.
OBJECTIVE: The use of fenestrated and branched stent graft technology for paravisceral abdominal aortic aneurysms (PAAA) is on the rise; however, its application is limited in the United States to only a few selected centers. Most PAAAs are currently repaired using an open approach. The objective of this study was to determine which patients are at highest risk with open PAAA repair and might benefit most from endovascular repair using fenestrated or branched stent grafts. METHODS: This was a retrospective cohort study using data from American College of Surgeons National Surgical Quality Improvement Program (NSQIP) hospitals. We identified 598 patients (27.5% women) who underwent elective open PAAA repair from the 2007 to 2009 NSQIP, a prospective database maintained at >250 centers. The main outcome measure was 30-day postoperative mortality. RESULTS: The median patient age was 73 years. The 30-day major morbidity rate was 30.1%, and the mortality rate was 4.5%. Major complications included reintubation (10.0%), sepsis (10.7%), return to operating room (9.2%), new dialysis requirement (5.9%), cardiac arrest or myocardial infarction (4.5%), and stroke (1.2%). Multivariate analyses identified four predictors of postoperative mortality after open PAAA repair: peripheral arterial disease (PAD) requiring revascularization or amputation, chronic obstructive pulmonary disease (COPD), anesthesia time, and female sex. PAD and COPD were present in only 5.2% and 20.4% of patients but were associated with a 16.1% and 9.0% mortality rate, respectively. The mortality rate in women was 7.3% vs 3.5% for men (P = .045). CONCLUSIONS: PAD, COPD, and female sex are major risk factors for postoperative mortality after open PAAA repair. Fenestrated or branched stent graft repair may be a more valuable alternative to open repair for patients with one or more of these characteristics who have suitable access vessels.
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