Correlação entre gasometria atrial direita e índice cardíaco no pós-operatório de cirurgia cardíaca
| Autor: | João Jackson Duarte, Marcos Douglas Z. Viola, Arino F. Silva, José Carlos Dorsa Vieira Pontes, Otoni Moreira Gomes, Guilherme V. Silva, Neimar Gardenal |
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| Rok vydání: | 2010 |
| Předmět: |
Cardiac output
medicine.medical_specialty business.industry Cardiac index Central venous pressure General Medicine Venous blood Right atrial Cardiac surgery Internal medicine medicine.artery Anesthesia cardiovascular system medicine Cardiology Surgery In patient Radial artery Cardiology and Cardiovascular Medicine business |
| Zdroj: | Revista Brasileira de Cirurgia Cardiovascular. 25:160-165 |
| ISSN: | 0102-7638 |
| DOI: | 10.1590/s0102-76382010000200006 |
| Popis: | Objective: To determine, even during the postoperative period, the reliability of the cardiac index correlated with the data provided by a central atrial venous blood gasometry in patients who underwent cardiac surgery. Methods: From the sample of arterial and venous blood of right atrium gathered in postoperative period of cardiac surgery, it was determinated the hemoglobin concentration and the gasometric study through what was observed of the venous oxygen saturation (SvO 2 ) and the partial pressure of oxygen from venous blood gathered in right atrium (PvO 2 ), add to the calculation of artery-venous difference of the oxygen content - radial artery / right atrium (C( a-v )O 2 ). Afterwards, these parameters were compared with the cardiac index determined by thermodilution. Results: There was a good correlation between SvO 2 , C(av)O 2 of the venous right atrial blood and cardiac index meansured by termodiluition method, with sensibility and especificity good and high positive predict value and negative predict value. The PvO 2 demonstrated poor sensibility in the estimative of low output. Conclusion: In cardiac surgery postoperative, the SvO 2 and the C(a-v)O 2 were safe parameters correlated with low cardiac output. The PvO 2 showed poor sensibility in the diagnosis of low output in postoperative cardiac surgery. |
| Databáze: | OpenAIRE |
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