H. Warden

A simple, expendable, artificial oxygenator for open heart surgery.

V. Gott, R. Varco, H. Warden, 1956, The Surgical clinics of North America.

Direct vision intracardiac surgery by means of a reservoir of "arterialized venous" blood; description of a simple method and report of the first clinical case.

R. Varco, H. Warden, R. Read, 1955, The Journal of thoracic surgery.

The first open-heart repairs of ventricular septal defect, atrioventricular communis, and tetralogy of Fallot using extracorporeal circulation by cross-circulation: a 30-year follow-up.

J. Moller, C. Patton, R. Varco, 1986, The Annals of thoracic surgery.

A surgical pathologic classification for isolated ventricular septal defects and for those in Fallot's tetralogy based on observations made on 120 patients during repair under direct vision.

R. Varco, C. Lillehei, H. Warden, 1957, The Journal of thoracic surgery.