European heart journal
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European heart journal · Oct 1994
Volume loading in predominant right ventricular infarction: bedside haemodynamics using rapid response thermistors.
Intravenous fluid loading is commonly used for the treatment of low cardiac output (CO) syndrome complicating severe right ventricular infarction (RVMI). We prospectively evaluated the effectiveness of this method in 11 consecutive patients (age 66 +/- 14 years) with severe RVMI, using a newer thermodilution method with rapid response thermistors. Volume loading was performed until pulmonary wedge pressure (PWP) reached 18 to 24 mmHg. ⋯ The end-diastolic RV volume increased from 95 +/- 26 to 113 +/- 24 ml.m-2 (P < 0.001); however, RV end-systolic volume increased from 65 +/- 28 to 83 +/- 29 ml.m-2 (P < 0.01), thus SV did not change significantly (30 +/- 6 vs 30 +/- 8 ml.beat-1.m-2, P ns). RVEF decreased from 32 +/- 11 to 28 +/- 11% (P < 0.001). CO did not improve significantly (2.3 +/- 0.42 vs 2.4 +/- 0.62 l.min-1.m-2, P ns) neither did the clinical status.(ABSTRACT TRUNCATED AT 250 WORDS)