title: Hemodynamic changes during a new procedure for regional chemotherapy involving occlusion of the thoracic aorta and inferior vena cava.
abstract: OBJECTIVE
  To describe the hemodynamic consequences of a regional chemotherapy procedure involving occlusion of the thoracic aorta and inferior vena cava (IVC) by intraluminal balloons.
  
  
  METHODS
  Prospective study.
  
  
  METHODS
  Operating rooms of an academic hospital.
  
  
  METHODS
  10 patients with inoperable intraabdominal malignancy.
  
  
  METHODS
  After the induction of general anesthesia and the insertion of a pulmonary artery catheter the patients underwent the regional chemotherapy procedure.
  
  
  RESULTS
  Occlusion of the thoracic aorta induced an increase in blood pressure (BP) and systemic vascular resistance (SVR) (41% +/- 8% and 80% +/- 15% from baseline, respectively), and a 30% +/- 7% decrease in cardiac output (CO). After aortic balloon deflation at the end of the procedure, we observed a decrease in BP to baseline values, decrease in SVR (to 62% +/- 12% below baseline), and increase in CO (to 80% +/- 15% above baseline). Those changes resemble those described during vascular surgery. Isolated occlusion of the IVC before aortic occlusion caused hemodynamic deterioration in only three of 10 patients, suggesting incomplete obstruction or collateral blood flow in others. Occluding the IVC while the aorta was occluded, caused minimal hemodynamic changes.
  
  
  CONCLUSIONS
  Independent inflation of the IVC balloon should not be performed routinely because of possible unpredicted hemodynamic instability. Inferior vena cava occlusion should always be performed after complete aortic occlusion, because it is then that it produces negligible hemodynamic consequences. It is possible that a better assessment of IVC occlusion after balloon inflation needs to be done by contrast injection to prevent a possible leak of chemotherapeutic drugs.
authors.affiliation: Department of Anesthesiology and Intensive Care, Sheba Medical Center, Tel-Hashomer, Israel.
authors.forename: H
authors.initials: H
authors.lastname: Berkenstadt
authors.forename: G
authors.initials: G
authors.lastname: Ben-Ari
authors.forename: A
authors.initials: A
authors.lastname: Perel
mesh_terms: D000008:Abdominal Neoplasms / Q000188:drug therapy; D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D000903:Antibiotics, Antineoplastic / Q000008:administration & dosage; D000964:Antimetabolites, Antineoplastic / Q000008:administration & dosage; D000970:Antineoplastic Agents / Q000008:administration & dosage; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use*; D001013:Aorta, Thoracic; D001794:Blood Pressure / Q000502:physiology; D002302:Cardiac Output / Q000502:physiology; D002404:Catheterization / Q000379:methods; D002407:Catheterization, Swan-Ganz; D010478:Chemotherapy, Cancer, Regional Perfusion / Q000295:instrumentation / Q000379:methods*; D002945:Cisplatin / Q000008:administration & dosage; D003097:Collateral Circulation / Q000502:physiology; D003287:Contrast Media; D005260:Female; D005471:Fluoroscopy; D005472:Fluorouracil / Q000008:administration & dosage; D006339:Heart Rate / Q000502:physiology; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016685:Mitomycin / Q000008:administration & dosage; D011446:Prospective Studies; D011669:Pulmonary Wedge Pressure / Q000502:physiology; D014655:Vascular Resistance / Q000502:physiology; D014682:Vena Cava, Inferior
chemical_list: D000903:Antibiotics, Antineoplastic; D000964:Antimetabolites, Antineoplastic; D000970:Antineoplastic Agents; D003287:Contrast Media; D016685:Mitomycin; D002945:Cisplatin; D005472:Fluorouracil