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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 4 of 4 Research Studies DisplayedDu DT, McKean SJ, Kelman JA, et al.
AHRQ Author: Encinosa W
Early mortality after aortic valve replacement with mechanical prosthetic vs bioprosthetic valves among Medicare beneficiaries: a population-based cohort study.
The researchers compared early mortality after aortic valve replacement (AVR) between the recipients of mechanical and bioprosthetic aortic valves. Among 66,453 Medicare beneficiaries who received AVRs, use of mechanical valves was associated with a higher risk for death on the date of surgery and within 30 days compared with the bioprosthetic aortic valves. However, this applied only to those who underwent concurrent AVR and coronary artery bypass graft but not isolated AVR.
AHRQ-authored
Citation: Du DT, McKean SJ, Kelman JA, et al..
Early mortality after aortic valve replacement with mechanical prosthetic vs bioprosthetic valves among Medicare beneficiaries: a population-based cohort study.
JAMA Intern Med. 2014 Nov;174(11):1788-95. doi: 10.1001/jamainternmed.2014.4300..
Keywords: Cardiovascular Conditions, Medicare, Mortality, Patient-Centered Outcomes Research, Surgery
Huesch MD
The impact of short breaks from cardiac surgery on mortality and stay length in California.
In this small, exploratory study, the researchers sought to investigate potential surgical “forgetting” among cardiac surgeons taking a break from performing isolated coronary artery bypass graft (CABG) surgery in a large state-wide study in California. Patients operated on by surgeons who had not performed isolated CABG in the prior calendar month stayed in hospital 0.5 day longer.
AHRQ-funded; HS021868.
Citation: Huesch MD .
The impact of short breaks from cardiac surgery on mortality and stay length in California.
J Healthc Qual 2014 Sep-Oct;36(5):42-9. doi: 10.1111/jhq.12018..
Keywords: Surgery, Outcomes, Mortality, Risk
Hockenberry JM, Helmchen LA
The nature of surgeon human capital depreciation.
The authors estimated how temporal breaks affect surgeons' performance of coronary artery bypass grafting (CABG). They found that a surgeon's additional day away from the operating room raised patients' inpatient mortality by up to 0.067 percentage points but reduced total hospitalization costs by up to 0.59 percentage points, and among emergent patients treated by high-volume providers, an additional day away raised mortality risk by 0.398 percentage points but reduced cost by up to 1.4 percentage points. They concluded that their results are consistent with the hypothesis that as temporal distance increases, surgeons are less likely to recognize and address life-threatening complications.
AHRQ-funded; HS019743.
Citation: Hockenberry JM, Helmchen LA .
The nature of surgeon human capital depreciation.
J Health Econ 2014 Sep;37:70-80. doi: 10.1016/j.jhealeco.2014.06.001.
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Keywords: Healthcare Costs, Mortality, Provider Performance, Surgery
Jones WS, Dolor RJ, Hasselblad V
Comparative effectiveness of endovascular and surgical revascularization for patients with peripheral artery disease and critical limb ischemia: systematic review of revascularization in critical limb ischemia.
This systematic review found that there is no difference in clinical outcomes for patients with critical limb ischemia treated with endovascular or surgical revascularization. This review of 23 studies found no differences in overall death, amputation, or amputation-free survival at 2 or more years following treatment.
AHRQ-funded; 290200710066I
Citation: Jones WS, Dolor RJ, Hasselblad V .
Comparative effectiveness of endovascular and surgical revascularization for patients with peripheral artery disease and critical limb ischemia: systematic review of revascularization in critical limb ischemia.
Am Heart J. 2014 Apr;167(4):489-498.e7. doi: 10.1016/j.ahj.2013.12.012..
Keywords: Comparative Effectiveness, Outcomes, Surgery, Mortality