Emmert, M Y; Salzberg, S P; Seifert, Burkhardt; Schurr, U P; Theusinger, O M; Hoerstrup, S P; Reuthebuch, O; Genoni, M (2011). Off-pump surgery is not a contraindication for patients with a severely decreased ejection fraction. Heart Surgery Forum, 14(5):E302-E306.
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Background: A severely impaired left ventricular ejection fraction (EF) (30%) increases the risk of surgical myocardial revascularization. We evaluated the safety and feasibility of off-pump coronary artery bypass (OPCAB) surgery in patients with a severely decreased EF.Methods: We compared 79 patients with an EF ≤30% (group A) with 863 patients with an EF >30% (group B) who underwent myocardial revascularization between 2003 and 2008. The relationship between EF and outcome after OPCAB was assessed by univariate and logistic regression analyses. A composite end point was constructed from 30-day mortality, renal failure, length of stay in the intensive care unit (ICU) >2 days, neurologic complications, and use of an intra-aortic balloon pump (IABP). Additionally, the completeness of revascularization was assessed.Results: The mortality rates for groups A and B were comparable (1.3% and 2.0%, respectively; P = .55), and the 2 groups did not differ with regard to serious postoperative complications, such as stroke (2.5% versus 1.4% for groups A and B, respectively; P = .42), peripheral neurologic complications (2.5% versus 0.7%, P = .14), renal failure (0% versus 1.1%, P = 1.00), use of an IABP (1.3% versus 0.8%, P = .50), ICU length of stay >2 days (17.7% versus 19.6%, P = .77). Similarly, groups A and B did not differ with regard to ventilation time (11.2 ± 12.7 hours versus 12.4 ± 15.5 hours, P = .82), indicating similar postoperative courses for the 2 groups of patients. In contrast, the composite end point occurred significantly more frequently in group A (43.0% versus 29.7%, P = .02), a result driven by the increased rate of rethoracotomy for bleeding in that group (11.4% versus 2.9%, P = .001). The 2 groups were similar with respect to the total number of grafts used per patient (3.82 ± 0.89 versus 3.63 ± 1.01, P = .10) and the completeness of revascularization (94% versus 93%, P = .49).Conclusion: A standardized OPCAB approach is safe for patients with a severely decreased EF, and its use does not come at the cost of less complete revascularization.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiovascular Surgery
04 Faculty of Medicine > University Hospital Zurich > Division of Surgical Research
04 Faculty of Medicine > Epidemology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > University Hospital Zurich > Institute of Anesthesiology
04 Faculty of Medicine > Center for Medical Research
|DDC:||570 Life sciences; biology
610 Medicine & health
|Deposited On:||10 Nov 2011 11:12|
|Last Modified:||31 Jan 2014 15:15|
|Publisher:||International Society for Minimally Invasive Cardiac Surgery|
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