OBJECTIVE: To assess the suitability of Partial Left Ventriculectomy (PLV) as a bridge to transplantation. BACKGROUND: Cohort study, prospective. MATERIAL AND METHODS: Fifty-three patients were submitted to PLV in a time frame of 5 years. Seven out of 53 patients, ages ranging from 37 to 64 years old, 5 males and 2 females, all with idiopathic dilated cardiomyopathy, were transplanted afterwards. Ejection fraction, NYHA functional classes, maximum oxygen consumption, left ventricular end-diastolic diameter and Quality of Life Scores were analysed preoperatively and then at three and six months and immediately before transplantation. RESULTS: The numerical values mentioned below are referred to the data obtained pre-ventriculectomy, at 3 and 6 postoperative months and immediately before transplantation. NYHA functional classes: 3.71 ± 0.49, 2.57 ± 1.13 (p=0.011), 3.0 ± 1.29 and 3.86 ± 0.38. Ejection fraction: 25.17 ± 6.15, 35.5 ± 8.41 (p=0.013), 32.33 ± 7.12 and 26.17 ± 3.76. Left ventricular end-diastolic diameter: 79.16 ± 10.85, 67.66 ± 9.2, 65.83 ± 9.57 e 64.25±8.99. Maximum VO2 was 8.12 ± 3.47 pre-VPE and increased to 13.2 ± 7.75 at six months (p=0.068). Quality of life scores: 4.29 ± 1.25, 3.0 ± 1.41 (p=0.050), 3.29 ± 1.8 e 4.57 ± 1.13. 7/53 patients (13.20%) were subsequently transplanted. Survival time, from PLV up to TX ranged from 7 to 33 months (18.71±11.78). Follow-up was 100%. CONCLUSION: Improvement in quality of life, NYHA functional classes and maximum VO2 consumption, as well as increase in ejection fraction and sustained decrease in left ventricular end-diastolic diameter, in short-term, can benefit patients previously excluded from TX and bring them back to the awaiting list. However, high immediate mortality rates in overall casuistry can limit its routine indication as a biological bridge to transplantation.
Heart ventricle; Heart transplantation; Heart ventricle; Heart ventricle
