Does near-infrared spectroscopy provide an early warning of low haematocrit following the initiation of hypothermic cardiopulmonary bypass in cardiac surgery?
J Int Med Res
; 39(4): 1497-503, 2011.
Article
en En
| MEDLINE
| ID: mdl-21986153
This study investigated 151 patients undergoing cardiac surgery to determine whether measurement of regional cerebral oxygen saturation (rS(c)O(2)) using near-infrared spectroscopy (NIRS) can indicate a low haematocrit after initiation of hypothermic cardiopulmonary bypass (CPB). Haematocrit, rS(c)O(2), haemoglobin level, arterial partial pressures of carbon dioxide and oxygen, systemic blood pressure, and nasopharyngeal and rectal temperatures were determined 5 min after the initial administration of heparin for CPB and 90 s after completion of the first cardioplegic solution injection. Immediately after initiation of hypothermic CPB, rS(c)O(2), haemoglobin and haematocrit values were significantly lower than those before CPB. No significant correlations were found between the change in haematocrit and changes in left, right and mean rS(c)O(2); thus, changes in rS(c)O(2) before and after initiation of hypothermic CPB did not reflect changes in haematocrit values. This indicates that NIRS cannot provide early warning of a low haematocrit immediately after initiation of hypothermic CPB in cardiac surgery.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Puente Cardiopulmonar
/
Monitoreo Intraoperatorio
/
Espectroscopía Infrarroja Corta
/
Procedimientos Quirúrgicos Cardíacos
/
Hipotermia
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Int Med Res
Año:
2011
Tipo del documento:
Article
Pais de publicación:
Reino Unido