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The intraoperative effect of pentoxifylline on the inflammatory process and leukocytes in cardiac surgery patients undergoing cardiopulmonary bypass

Kerim Çal

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey, kerimcagli{at}hotmail.com

Mahmut Mustafa Ula

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Kanat Öziik

Numune Education and Research Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Arzum Kale

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Vedat Bakuy

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Mustafa Emir

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Mustafa Balc

Türkiye Yüksek htisas Hospital, Department of Immunology, Ankara, Turkey

Murat Topba

Karadeniz Technical University, Department of Public Health, Trabzon, Turkey

Erol ener

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Og'uz Tademir

Türkiye Yüksek htisas Hospital, Department of Cardiovascular Surgery, Ankara, Turkey

Background: Inflammation plays a pivotal role in the pathogenesis of organ dysfunction after cardiopulmonary bypass (CPB). The aim of this study was to investigate whether pentoxifylline (PTX) has effects on the inflammatory process and leukocytes in cardiac surgery patients undergoing CPB.

Material and methods: A double-blind, prospective, randomized, placebo-controlled study was undertaken to assess the effect of PTX on leukocyte counts, tumour necrosis factor- (TNF-), interleukin-6 (IL-6) and C-reactive protein (CRP) levels in 60 patients undergoing CPB for elective coronary artery bypass grafting. In 30 patients, 200 mg of PTX was added to 500 mL NaCl and perfused for 180 min after induction of anaesthesia and also 100 mg of PTX was added to the warm cardioplegic solution; another 30 patients received saline solution as placebo.

Results: All measurements were performed before PTX infusion (T0), after induction of anaesthesia (T1), 30 min after weaning from CPB (T2), and 6 hours (T3) and 24 hours postoperatively (T4). PTX did not change the percentage of eosinophils, basophils, neutrophils, monocytes, or lymphocytes, or CRP levels. In the control group, however, total leukocyte count and IL-6 level at T3 and T4 period were significantly higher than the study group. The progressive increment in TNF- level observed at each period was also significantly prominent in the control group.

Conclusion: CPB-related whole body inflammatory response could be partially inhibited by intraoperative PTX administration. This effect of PTX would be helpful in preventing the well-known complications of CPB-induced systemic inflammation.

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