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J Thorac Cardiovasc Surg 1999;118:492-495
© 1999 Mosby, Inc.
SURGERY FOR ACQUIRED CARDIOVASCULAR DISEASE |
rul Özal, MDFrom Gülhane Military Medical Academy, Cardiovascular Surgery Department, Ankara, Turkey.
Address for reprints: Erkan Kuralay, MD, Gülhane Lojmanlar¦ Pamir Apartment No. 15, Etlik, Ankara, Turkey (06010).
Objective: The aim of this prospective study was to evaluate the effectiveness of posterior pericardiotomy from the point of pericardial effusion related with supraventricular tachycardia and development of delayed posterior cardiac effusions.
Materials and methods: This prospective randomized study was carried out in 200 patients undergoing coronary artery bypass surgery in Gülhane Medical Academy Department of Cardiovascular Surgery between June 1996 and June 1997. Patients were divided into 2 groups; each group included 100 patients. Longitudinal incision was made parallel and posterior to the left phrenic nerve, extending from the left inferior pulmonary vein to the diaphragm in group I patients. Posterior pericardiotomy was not done in group II.
Results: Atrial fibrillation was developed in 6 patients (6%) in group I and in 34 patients (34%) in group II (P = .0000007). Atrial flutter and other supraventricular arrhythmia prevalence was not statistically significant. Early and late pericardial effusion were developed 54% and 21%, respectively, in group II, but neither early nor late pericardial effusion were developed in group I (P = .00001). Delayed pericardial tamponade was also significantly lower in group I (0% vs 10%; P = .001).
Conclusion: Posterior pericardiotomy is technically easy to perform and a safe and effective technique that reduces not only the prevalence of early pericardial effusion and related atrial fibrillation but also delayed posterior pericardial effusion and tamponade.
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