Selective lung ventilation during thoracoscopy: Effects of insufflation on hemodynamics
| Autor: | Ronald C. Hill, Behrooz Kalantarian, David R. Jones, Robert A. Vance |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Pulmonary and Respiratory Medicine
Insufflation Mean arterial pressure Lung medicine.diagnostic_test Swine business.industry Thoracoscopy medicine.medical_treatment Hemodynamics Cardiac index Positive pressure Respiration Artificial medicine.anatomical_structure Anesthesia medicine.artery Pulmonary artery medicine Animals Surgery Thoracotomy Cardiology and Cardiovascular Medicine business |
| Zdroj: | The Annals of Thoracic Surgery. 61:945-948 |
| ISSN: | 0003-4975 |
| DOI: | 10.1016/0003-4975(95)01150-1 |
| Popis: | Background. Positive-pressure insufflation during thoracoscopy has been advocated by some authors to facilitate exposure of the intrathoracic structures by expediting collapse of the lung. We hypothesized that insufflation during thoracoscopy may result in hemodynamic compromise despite selective lung ventilation. Methods. After placement of invasive monitoring lines, six adult swine underwent selective lung ventilation and thoracoscopy. Baseline measurements of hemodynamic indices were taken before selective lung ventilation. The right lung then was collapsed; data were obtained at insufflation pressures up to 10 mm Hg and were compared with baseline values using Student's t test. Results. Cardiac index, mean arterial pressure, and left ventricular stroke work index decreased, whereas pulmonary artery and central venous pressures increased ( p Conclusions. Positive-pressure insufflation during thoracoscopy resulted in significant hemodynamic compromise despite the use of selective lung ventilation. Conversion to thoracotomy may be an alternative if positive-pressure insufflation is necessary to perform the thoracoscopic procedure. |
| Databáze: | OpenAIRE |
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