BACKGROUND: A living donor transplant improves the survival and quality of life of a
transplant patient. However, the impact of transplantation on postoperative lung
function and respiratory muscular strength in kidney donors remains unknown. OBJECTIVE: To evaluate pulmonary function, respiratory muscle strength, quality of life and
the incidence of postoperative pulmonary complications (PPCs) in kidney donors
undergoing nephrectomy. METHOD: This prospective cohort enrolled 110 consecutive kidney donors undergoing
nephrectomy. Subjects underwent pulmonary function (using spirometry) and
respiratory muscular strength (using manovacuometry) assessments on the day prior
to surgery and 1, 2, 3 and 5 days postoperatively. Quality of life (measured by
the SF-36) was evaluated preoperatively and 30 days postoperatively. PPCs were
assessed daily by a blinded assessor. RESULTS: Donors exhibited a decrease of 27% in forced vital capacity, 58% in maximum
inspiratory capacity and 51% in maximum expiratory pressure on the
1stpostoperative day (p<0.001) but this improved over days 2, 3 and
5 but had not returned to preoperative levels. Patient quality of life was still
impaired at 30 days with regards to functional capacity, physical role, pain,
vitality and social functioning (p<0.05) but these parameters improved slowly.
None of the patients developed PPCs. CONCLUSION: Kidney donors submitted to nephrectomy exhibited a reduction in pulmonary
function, respiratory muscular strength and quality of life, most of which were
improving toward pre-surgical levels.