Starling resistor vs. distensible vessel models for embolic pulmonary hypertension.

We investigated whether the Starling resistor model (Mitzner et al. J. Appl.

[Aspects of pathological physiology of the dog in extracorporeal circulation].

During ECC, dogs ventilate spontaneously according to classical physiology. Further, given the CO2 clearance insured by the ECC oxygenator, many hours of reversible apnea are tolerated without sequellae. Surgical removal of the lungs shows that an emptied chest still responds to chemical drives, but the absent lung-recoil causes hyperinflation with lethal failure.

Postoperative radiotherapy after pneumonectomy: impact of modern treatment facilities.

Purpose: The present study was undertaken to see how modern treatment facilities, computed tomography (CT)-based treatment planning and linear accelerator, have modified the results of postoperative irradiation after a pneumonectomy for lung cancer.

Methods And Materials: Between 1970-1985, 103 patients were treated in our department after a pneumonectomy: 50 patients with a T1T2N0 tumor and 53 patients with a T3, N1 or N2 tumor. Three groups were considered: 27 patients had only surgical resection, 51 patients were irradiated postoperatively with a Co60 source, and 25 patients were treated using those modern facilities.