title: Experience with percutaneous venoarterial cardiopulmonary bypass for emergency circulatory support.
abstract: OBJECTIVE
  Mechanical circulatory support can maintain vital organ perfusion in patients with cardiac failure unresponsive to standard pharmacologic treatment. The purpose of the current study was to report complication and survival rates in patients supported with emergency percutaneous venoarterial cardiopulmonary bypass because of prolonged cardiogenic shock or cardiopulmonary arrest.
  
  
  METHODS
  Retrospective clinical study.
  
  
  METHODS
  A total of 46 patients supported with venoarterial cardiopulmonary bypass, 25 because of cardiogenic shock unresponsive to pharmacologic therapy and 21 because of cardiopulmonary arrest unresponsive to standard advanced cardiac life support.
  
  
  RESULTS
  In 41 of the 46 patients (89%), stable extracorporeal circulation was established; in five patients (11%), femoral cannulation was accomplished only after a surgical cutdown. A total of 28 patients were weaned from cardiopulmonary bypass (19 of 25 patients with cardiogenic shock vs. 9 of 21 patients with cardiopulmonary arrest, p =.03), and 13 patients had long-term survival (10 of 25 patients with cardiogenic shock vs. 3 of 21 patients with cardiopulmonary arrest, p =.1). Complications directly related to the use of cardiopulmonary bypass were found in 18 patients (39%), major complications related to femoral cannulation being the most common single cause for bypass-associated morbidity (eight patients, 17%).
  
  
  CONCLUSIONS
  Long-term survival rates after emergency percutaneous cardiopulmonary bypass are encouraging in patients with an underlying cardiocirculatory disease amenable to immediate corrective intervention (angioplasty, surgery, transplantation).
authors.affiliation: Department of Anaesthesiology and Critical Care Medicine, Leopold Franzens University, School of Medicine, Innsbruck, Austria. Birgit.Schwarz@uibk.ac.at
authors.forename: Birgit
authors.initials: B
authors.lastname: Schwarz
authors.forename: Peter
authors.initials: P
authors.lastname: Mair
authors.forename: Josef
authors.initials: J
authors.lastname: Margreiter
authors.forename: Andreas
authors.initials: A
authors.lastname: Pomaroli
authors.forename: Christoph
authors.initials: C
authors.lastname: Hoermann
authors.forename: Johannes
authors.initials: J
authors.lastname: Bonatti
authors.forename: Karl H
authors.initials: KH
authors.lastname: Lindner
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001166:Arteriovenous Shunt, Surgical; D002315:Cardiopulmonary Bypass / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D004630:Emergencies; D005260:Female; D006323:Heart Arrest / Q000209:etiology / Q000401:mortality / Q000628:therapy*; D006470:Hemorrhage / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D009017:Morbidity; D018579:Patient Selection; D015995:Prevalence; D012151:Resuscitation / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D012189:Retrospective Studies; D012770:Shock, Cardiogenic / Q000209:etiology / Q000401:mortality / Q000628:therapy*; D016019:Survival Analysis; D013923:Thromboembolism / Q000453:epidemiology / Q000209:etiology; D013997:Time Factors; D016896:Treatment Outcome