Preoperative lymphopenia is a predictor of postoperative adverse outcomes in children with congenital heart disease.
Cabrera AG, Dyamenahalli U, Gossett J, Prodhan P, Morrow WR, Imamura M, Jaquiss RD, Bhutta AT. Preoperative lymphopenia is a predictor of postoperative adverse outcomes in children with congenital heart disease. J Thorac Cardiovasc Surg. 2009 Nov; 138(5):1172-9.