Application of centrifugal pump in right ventricular failure due to pulmonary artery hypertension. (A case report)

Background: It has not been yet developed a ost suitable method to treat right ventricular failure due to pulmonar artery hypertention resulted from ventricular arrhythia. Though some case reports about patients ready to heart transplant using left assist device or biventral assist device as bridge have been published in Journals, but nocase concerning application of centrifugal pump for treatment of right ventricular failure has been reported. Case report: The patient was a 51- year-old woman from rural region of Kurdistan with sever mitral stenosis and left arterial clot and sever pulmonary hypertension who underwent mitral valve replacement and removing of clot. The patient developed right ventricular failure due to sever pulmonary hypertension (110 mmHg) when was waned from cardiopulmonary bypass therefore CPB was resumed to be followed by intra aortic bollon pumping howevwr complete response was not be obtained due to repeated ventricular tachycardia and fibrillation thus right ventricular support was performed using a centrifugal pump and the patient could be weaned from CPB, 2 day after surgery. The right ventricular support was discontinued and IABP was removed 7 day after surgery without marked changes in homodyamics. Conclusion: Although right ventricular failure due to sever pulmonary hyperlension is an ominous complication after open heart surgery but simultanrous use of ballon pumping and bio pumping for right ventricular failure in our patient caused her recovery.