Peculiarity of clinical course of postpericardiotomy syndrome in different methods of surgery and postoperative antithrombotic therapy.

Abstract

Aim To compare features of the disease course and the effectiveness of nonsteroidal anti-inflammatory drug (NSAID) treatment of postpericardiotomy syndrome (PPS) in patients after coronary bypass (CB) surgery who were treated with antiplatelet drugs and in patients after surgical correction of heart valve disease (CHVD) who received the anticoagulant warfarin for prevention of thrombotic complications.Material and methods This study included 89 patients of whom 53 patients had underwent CB and 36 patients had underwent CHVD. At 15 [13; 15] days after surgery, the severity of inflammatory response, the state of coagulation hemostasis, and hematocrit were studied. At 5 days after the first test, blood count and measurement of C-reactive protein were repeated. Echocardiography was used to determine the presence and volume of pleural effusion. For prevention of thrombotic complications, antiplatelet drugs were administered after CB and warfarin was administered after CHVD. PPS was detected in 35 (66 %) patients after CB and 18 (50 %) patients after CHVD. The ibuprofen treatment (600 mg twice a day) was administered to all patients with PPS. If positive changes in inflammatory markers were absent during the NSAID treatment, ibuprofen was replaced with prednisolone 0.5 mg/kg body weight with subsequent laboratory and instrumental monitoring.Results Patients after CHVD treated with warfarin had higher values of international normalized ratio (INR) and activated partial thromboplastin time (aPPT) and lower values of prothrombin index (PTI), fibrinogen (p<0.001 for all), hemoglobin (p=0.0016), and hematocrit (p=0,0032) than patients after CB treated with antiplatelet drugs. 21 (40 %) patients with PPS required changing the anti-inflammatory therapy from ibuprofen to prednisolone. These patients displayed hypocoagulation, which was evident as reduced PTI (p=0.0023) and fibrinogen (p=0.0209), increased INR (p=0.0291) and aPPT (p=0.0416), and a higher incidence of pericardial effusion (p=0.0080). The insufficient effectivity of NSAIDs that required administration of prednisolone was more frequently observed in patients after CHVD (61 % vs. 29 %, р=0.037).Conclusion Hypocoagulation observed in patients after CHVD due to the anticoagulant treatment with warfarin was associated with more severe course of PPS and lower effectiveness of the NSAID treatment compared to patients after CB. This results in more frequent replacement of NSAIDs with glucocorticoids in the treatment of patients after CHVD.