Patients were classified into fluid responders and nonresponders based on a stroke volume index
increase of ?
03), plus lower stroke volume index
and worse cardiac function with higher left myocardial performance index (0.
All measurements were compared before volume expansion and whether their values were associated with a significant change in stroke volume index
Variables recorded included FTc, velocity time integral, stroke volume, stroke volume index
, cardiac output and cardiac index.
Our findings suggested that the shortest AVI of 100 ms or 150 ms compared to 200 ms, exerted the most beneficial effect on diastolic filling dynamics of both ventricles (Table 2) and was associated with a more favorable LV stroke volume index
(LVOT VTI) (Table 2).
If the NICOM monitor recorded a change in stroke volume index
(SVI) of greater than 10%, the patient was considered fluid responsive.
In the study of 51 patients, 31 patients were responders to fluid administration and 20 were non-responders, defined as a >10% increase stroke volume index
(the amount of blood a heart pumps in each beat) after fluid administration.