Cardiac Doppler variation with volume status changes in general intensive care.
The authors studied the effect of volume status modification on cardiac Doppler features, with negative fluid balance and corresponding central venous pressure change. This was carried out in 64 patients admitted to the Intensive Care Unit, 24 of whom were under mechanical ventilation. With volume status change, the mitral E/A ratio showed a tendency to decrease, mitral E wave deceleration time decreased, isovolumic relaxation time increased, and the expiratory diameter of the inferior vena cava reduced and its inspiratory collapse increased. No significant correlation was observed between the parameters studied and volume changes, or between central venous pressure and fluid balance. Volume changes in critical care patients modify certain features of Doppler echocardiography, but the magnitude of such variations is unpredictable.
Marcelino
Paulo
P
Unidade de Cuidados Intensivos do Hospital de Curry Cabral, Centro de Cardiologia da Universidade de Lisboa (LA3) Lisboa, Portugal. marcelinop@mail.telepac.pt
Frade
Francisca
F
Marum
Susan
S
Fernandes
Ana Paula
AP
Ribeiro
Palmeiro
P
Lopes
Mário G
MG
D000328:Adult; D000368:Aged; D001794:Blood Pressure; D002306:Cardiac Volume; D003422:Critical Care; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged