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Ann Thorac Surg 2005;80:2013-2019
© 2005 The Society of Thoracic Surgeons

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Original article: General thoracic

Comparative Study of Subxiphoid Versus Video-Thoracoscopic Pericardial "Window"

^a Section of General Thoracic Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania USA
^b Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania USA
^c Department of Surgery, Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania

Accepted for publication May 18, 2005.

^_* Address correspondence to Dr Shrager, Hospital of the University of Pennsylvania, Silverstein 6, 3400 Spruce St, Philadelphia, PA19104 (Email: joseph.shrager{at}uphs.upenn.edu).

BACKGROUND: It remains undefined whether surgical subxiphoid drainage or thoracoscopic pericardial "window" is the optimal operative approach to pericardial effusion. We hypothesized that the true window into the pleural space created by the latter might improve the duration of freedom from recurrent effusion.

METHODS: We conducted a retrospective chart review of indications, preoperative and intraoperative variables, morbidity, recurrence, and survival.

RESULTS: Fifty-six patients underwent the subxiphoid procedure and 15 underwent the thoracoscopic procedure. Echocardiographic evidence of tamponade was present before 8 of 10 thoracoscopic procedures (80%) and 43 of 56 subxiphoid procedures (81%) for which descriptions of hemodynamics were available. In addition, non-pericardial procedures were performed in 10 (67%) and 18 (32%) patients, respectively (p = 0.020). Anesthesia time was longer at thoracoscopy (117.1 ± 32.4 vs 81.1 ± 25.5 minutes; p < 0.001). Procedural morbidity was higher after thoracoscopy (4 [27%] vs 1 [2%]; p = 0.006), but was generally minor. Hospital mortality tended to be higher after the subxiphoid procedure (7 [13%] vs 0 [0%]; p = 0.332), but none of the deaths was procedure-related. Follow-up was complete for 65 patients (92%). Recurrence occurred in 1 thoracoscopy patient (8%) and 5 subxiphoid patients (10%) (p = 1.000). Mean time to recurrence by Kaplan-Meier analysis trends were longer after thoracoscopy (36.1 vs 11.4 months; p = 0.16), and multivariate analysis identified the thoracoscopic approach as an independent predictor of freedom from recurrence (relative risk, 0.41; p = 0.014).

CONCLUSIONS: Operative time and minor procedural morbidity are higher with thoracoscopic pericardial window, but long-term control of effusion seemed to be better than after subxiphoid surgical drainage.

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