Pulmonary hypertension and post-operative outcome in renal transplant: A retrospective analysis of 170 patients

Vipin Kumar Goyal, Sohan Lal Solanki, Birbal Baj

Indian Journal of Anaesthesia 2018 62(2):131-135

Background and Aims: Renal transplant is the best possible treatment for patients suffering with end-stage renal disease (ESRD). Cardiovascular events are the commonest factors contributing to perioperative morbidity and mortality in this population. These patients have a high incidence (up to 60%) of pulmonary hypertension (PH) and that may affect the perioperative outcome. Methods: In this study, we aimed to study the impact of PH on perioperative outcome after renal transplant. PH was defined as patients with pulmonary artery systolic pressure ≥35 mmHg on pre-operative echocardiography. Medical records of 170 patients who had undergone renal transplantation in the past 3 years were reviewed. Primary outcome was delayed graft functioning and secondary outcomes were perioperative complications such as hypotension, arrhythmias, need of post-operative mechanical ventilation, atelectasis and pulmonary oedema. Results: We observed 46.5% incidence of PH in ESRD patients. Compared to patients without PH, more patients with PH had postoperative hypotension (26.58% vs. 9.89%, P = 0.004) and delayed graft functioning (8.8% vs. 1.1%, P = 0.026). On multivariate analysis, however, PH was not an independent predictor of delayed graft functioning. Conclusion: In ESRD patients, although PH is not an independent predictor of delayed graft functioning, patients having PH are more prone for perioperative hypotension and delayed graft functioning after renal transplant.

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