Partial pericardectomy - (peri Cardia; Greek peri about, around + kardia heart; rhexis rupture, excision) - operation: partial excision of the epicardium. Performed for diaphragmatic pleurisy with watery exudate. If the clinical picture is favorable, the operation is performed in stage 1. The affected diaphragm, adjacent areas of the parietal pleura with lesions and the epicardium are removed. Some authors perform partial pericardectomy for encysted pericarditis, especially if the posteromedial parts of the pleural cavity are affected. The operation should usually be performed with