Successful weaning from cardiopulmonary bypass with central venous prostaglandin E1 and left atrial norepinephrine infusion in patients with acute pulmonary hypertension
Autor: | A. Menichetti, Andrea A. Cogliati, Elisabetta Pasotti, Luigi Tritapepe, Ugo Papalia, Paolo Voci |
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Rok vydání: | 1999 |
Předmět: |
Adult
Male Cardiac Catheterization Catheterization Central Venous medicine.medical_specialty Hypertension Pulmonary Vasodilator Agents Cardiac Output Low Critical Care and Intensive Care Medicine law.invention Norepinephrine (medication) Norepinephrine chemistry.chemical_compound Refractory law Left atrial Cardiopulmonary bypass Humans Vasoconstrictor Agents Medicine Weaning Heart Atria Pulmonary Wedge Pressure Alprostadil Cardiac Surgical Procedures Infusions Intravenous Prostaglandin E1 Cardiopulmonary Bypass business.industry Middle Aged medicine.disease Pulmonary hypertension Cardiac surgery Treatment Outcome chemistry Anesthesia Acute Disease Drug Therapy Combination Female Vascular Resistance lipids (amino acids peptides and proteins) business circulatory and respiratory physiology medicine.drug |
Popis: | Postoperative pulmonary hypertension increases the mortality risk in cardiac surgery. We have used central venous prostaglandin E1 (PGE1) and left atrial norepinephrine (NE) infusion to wean from cardiopulmonary bypass (CPB) patients with refractory postoperative pulmonary hypertension.Observational, nonrandomized study.Department of Cardiac Surgery in a university hospital.We studied 10 nonconsecutive American Society of Anesthesiologists III and New York Heart Association class III-IV patients with postoperative pulmonary hypertension and low cardiac output syndrome preventing separation from CPB.Patients received right atrial PGE1 (31.5 +/- 6.26 ng/kg/min) and left atrial NE (0.11 +/- 0.02 microg/kg/min) infusion. Hemodynamic data were obtained before CPB (T0), after CPB under maximal inotropes and vasodilator infusion (T1), 10 mins (T2) and 12 hrs (T3) after PGE1 and NE infusion, and 48 hrs after withdrawal of PGE1 and NE (T4).All patients were successfully weaned from CPB and survived. The biatrial infusion of PGE1 and NE caused a dramatic reduction in mean pulmonary artery pressure (from 42.8 +/- 5.1 mm Hg at T1 to 28.5 +/- 2.6 mm Hg at T2 and 20.5 +/- 2.0 mm Hg at T4), pulmonary vascular resistance index (from 1158 +/- 269 dyne x sec/cm5 x m2 at T1 to 501 +/- 99 dyne x sec/cm5 x m2 at T2 and 246 +/- 50 dyne x sec/cm5 x m2 at T4), and pulmonary-to-systemic vascular resistance index ratio (from 0.61 +/- 0.17 at T1 to 0.20 +/- 0.04 at T2 and 0.11 +/- 0.03 at T4). Cardiac index increased from 1.7 +/- 0.2 L/min/m2 at T1 to 2.3 +/- 0.2 L/min/m2 at T2 and 2.9 +/- 0.1 L/min/m2 at T4.In patients with refractory postoperative pulmonary hypertension, the combined administration of low-dose PGE1 in the right atrium and NE in the left atrium is an effective means to wean patients from cardiopulmonary bypass. |
Databáze: | OpenAIRE |
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