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Effects of low-dose human atrial natriuretic peptide for preventing post-operative cardiopulmonary complications in elderly patients undergoing pulmonary resection for lung cancer.

OBJECTIVES
The objective of the present study was to evaluate the clinical effects of human atrial natriuretic peptide (hANP) on post-operative cardiopulmonary complications in elderly patients undergoing pulmonary resection for lung cancer.


METHODS
A retrospective study involving 44 consecutive patients aged ≥75 years who had elevated pre-operative B-type natriuretic peptide levels (≥30 pg/ml) and underwent a scheduled pulmonary resection for lung cancer in two specialized thoracic centres between April 2008 and March 2010. Results were compared between the patients who did and did not receive hANP during the perioperative period. The primary endpoint was the incidence of post-operative cardiopulmonary complications. Post-operative haemodynamics, white blood cell (WBC) counts and C-reactive protein (CRP) levels were also examined.


RESULTS
The incidence of post-operative cardiopulmonary complications was significantly lower in the hANP group than that in the control group (26 vs. 86%, P < 0.0001). Patients in the hANP group showed significantly lower WBC counts and serum CRP levels post-operatively.


CONCLUSIONS
Continuous infusion of low-dose hANP during lung cancer surgery had a prophylactic effect on post-operative cardiopulmonary complications in elderly lung cancer patients. (


TRIAL REGISTRATION NUMBER
JPRN-UMIN000003631).