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Clinical Experience of Assisted Circulation with a Centrifugal Pump at Tokyo Women's Medical College
Author(s) -
Nishida Hiroshi,
Koyanagi Hitoshi,
Hashimoto Akimasa,
Endo Masahiro,
Aomi Shigeyuki,
Koyanagi Toshiya,
Hirota Jun,
Tagusari Osamu,
Yamaki Fumitaka
Publication year - 1993
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1993.tb00606.x
Subject(s) - centrifugal pump , medicine , cardiogenic shock , cardiopulmonary bypass , heparin , pulsatile flow , membrane oxygenator , surgery , thrombus , oxygenator , myocardial infarction , anesthesia , extracorporeal circulation , cardiology , impeller , physics , thermodynamics
In postpericardiotomy patients, the use of pulsatile pumps is limited in a semielective fashion to patients whose postoperative marginal hemodynamics are expected preoperatively. Since 1989, 25 patients have under‐gone assisted circulation with a centrifugal pump: 15 (60%) were weaned from the pump, and 7 (28%) survived. In 1988, we heparin‐coated the Bio‐Pump using the Carmeda technique and developed a totally heparin‐coated left heart bypass system together with heparin‐coated cannulas and tubing. Four postpericardiotomy patients underwent left heart bypass with this system without heparin for 2 to 9 days. No thrombus was detected in the system. Left heart bypass with a centrifugal pump has been used as a supportive method in surgical repair of thoracic or thoracoabdominal aortic aneurysm. To over‐come intraoperative hypothermia and hypoxia, we used a small membrane oxygenator with a heat exchanger in 11 patients, and postoperative recovery dramatically improved. We also developed a preassembled percutaneous cardiopulmonary support (PCPS) system with an automatic priming function using Terumo's straight path centrifugal pump and small membrane oxygenator in cooperation with the Terumo Corporation. This system was used in a patient with cardiogenic shock after acute myocardial infarction. The setup and priming took only 5 min, and 2.5‐3.5 L/min of flow was obtained.