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Objective: The study was designed to ascertain the influence of usage of bovine pericardial patch in patients undergoing Bentall’s procedure with respect to reexploration for bleeding, mediastinal infection, avoidance of conduit adhesions, late development of pericardial constriction and calcification. Materials and Methods: We reviewed 150 patients (79 males) aged between 22 to 68 years (mean±SD 49.25±12.9 years) receiving a composite aortic conduit between January 1998 to December 2020 for annuloaortic ectasia (n=100), aortic dissection (n=49), and dilated aortic root in repaired tetralogy of Fallot (n=1). Twenty-five patients had Marfan’s syndrome. Modified “button technique” was performed by interposing a glutaraldehyde treated pericardial strip at the graft coronary anastomoses, and proximal aortic conduit suturing using interlocking interrupted, pledgeted mattress suture. On completion, the pericardial cavity was reconstructed using St. Jude Medical Biocor pericardial patch. To detect evidence of pericardial constriction, survivors underwent echocardiography and computed tomography. The Kaplan-Meier curve was drawn to show the probability of survival over a period of follow-up time. Results: Seven (4.7%) patients died of cardiac-related cause, 45% had transient hemodynamic instability, 55% had low cardiac output, and 87.1% had spontaneous return of sinus rhythm. The average 12-hour postoperative drainage was 245±70 ml and there was no mediastinal infection. At a mean follow-up of 172.4 (SD± 58.9) months, the actuarial survival was 94.2±0.04% (95% CI: 88.5-96.8), and there was no pericardial constriction or calcification. Conclusion: Reconstruction of pericardial cavity using Biocor bovine pericardial patch minimizes diffuse oozing of blood, graft infection, and is not associated with later development of pericardial constriction, or calcification. |
