Table 1
Course of hemodynamic and respiratory variables before and after atrioseptostomy procedure.
| Variables | Day −1 atrioseptostomy | Day 0 |
Day +1 atrioseptostomy | |
|---|---|---|---|---|
| Before atrioseptostomy | After atrioseptostomy | |||
| VA ECMO parameters | ||||
| Revolutions/min | 3100 | 3035 | 3016 | 2924 |
| Sweep gas flow (L/min) | 1 | 1 | 1 | 1 |
| FiO2 to the membrane lung | 0.80 | 0.80 | 1 | 1 |
| Extracorporeal blood flow (L/min) | 3.45 | 3.54 | 3.51 | 3.36 |
| PaO2 (mmHg) | 118 | 94 | 57 | 75 |
| PaCO2 (mmHg) | 31 | 32 | 37 | 32 |
| FiO2 to the native lung | 0.21 | 0.21 | 0.60 | 0.60 |
| Respiratory rate/min | 21 | 26 | 36 | 25 |
| Radiologic score* | 0 | 4 | 7 | 8 |
| Mean arterial pressure (mmHg) | 86 | 90 | 83 | 82 |
| Heart rate (beat/min) | 92 | 102 | 84 | 88 |
| Pulse pressure (mmHg) | 20 | 24 | 12 | 22 |
| Central venous pressure (mmHg) | – | 19 | – | – |
| Left atrial pressure (mmHg) | – | 12 | – | – |
| Echocardiographic parameters | ||||
| LVEF (%) | 15 | 15 | 15 | 20 |
| LV end-diastolic diameter (mm) | 48 | 48 | 51 | 48 |
| RV/LV ratio | 1.17 | 1.04 | 0.80 | 0.72 |
VA-ECMO: venous arterial extra corporeal membrane oxygenation; LVEF: left ventricular ejection fraction; LV: left ventricular; RV: right ventricular.
Radiologic score: the anterior–posterior chest roentgenograms were divided into four zones using a horizontal line originating from the hilus; each zone was then graded as follows: 0, normal; 1, interstitial pulmonary infiltrates; 2, fluffy alveolar infiltrates; 3, dense alveolar infiltrates. Thus, the score could range from 0 to 12, with higher scores indicating greater severity of infiltration.
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