Table 3. Perioperative and postoperative characteristics of the patients undergoing pulmonary endarterectomy.
| Variables | Mean ± SD or number (%) | Range |
| Number of patients, n (%) | 19 (100%) | |
| Pre-PEA FC | ||
| III, n (%) | 12 (63%) | |
| IV, n (%) | 7 (37%) | |
| Diagnosis to PEA, months | 22.0 ± 35.5 | 0-128 |
| Cardiac catheterization | ||
| RAP, mmHg | 13 ± 7 | 3-30 |
| SPAP, mmHg | 86 ± 20 | 51-129 |
| MPAP, mmHg | 51 ± 11 | 32-74 |
| PAWP, mmHg | 11 ± 5 | 3-21 |
| CO, L/min | 3.0 ± 1.0 | 1.6-4.8 |
| CI, L/min·m2 | 1.9 ± 0.6 | 1.2-3.1 |
| PVR, WU | 13.1 ± 6.9 | 4.5-28.1 |
| MvO2, % | 56 ± 12 | 37-76 |
| SaO2, % | 92 ± 6 | 75-100 |
| Jamieson classification of PTE | ||
| J1, n (%) | 9 (47%) | |
| J2, n (%) | 6 (32%) | |
| J3, n (%) | 3 (16%) | |
| J4, n (%) | 1 (5%) | |
| Operation time | ||
| CPB time, min | 226 ± 83 | 90-413 |
| TCA time, min | 60 ± 31 | 20-125 |
| Combined operation*, n (%) | 5 (26%) | |
| Postoperative care | ||
| ICU stay, days | 8 ± 13 | 1-55 |
| Hospital stay, days | 19 ± 26 | 6-119 |
| Endotracheal intubation, days | 5 ± 6 | 1-20 |
| ECMO#, days | 10 ± 7 | 3-20 |
| PAH-specific drug | ||
| sCGS, n (%) | 4 (21%) | |
| Post-PEA follow-up, months | 37.7 ± 42.8 | 0.2-150 |
Data are expressed as mean ± SD for continuous variables and as number and percentage for categorical variables.
* Combined operation included 2 coronary artery bypass graft surgery, 2 patent fossa ovale closure, and 1 atrial septal defect closure. # ECMO was done in 4 patients.
CI, cardiac index; CO, cardiac output; CPB, cardiopulmonary bypass; ECMO, extracorporeal membrane oxygenation; FC, functional class; ICU, intensive care unit; J1, Jamieson type 1 disease; J2, Jamieson type 2 disease; J3, Jamieson type 3 disease; J4, Jamieson type 4 disease; MPAP, mean pulmonary artery pressure; MvO2; mixed venous oxygen saturation; PAWP, pulmonary artery wedge pressure; PEA, pulmonary endarterectomy; PTE, pulmonary thromboembolism; PVR, pulmonary vascular resistance; RAP, right atrial pressure; SaO2, arterial oxygen saturation; sCGS, soluble guanylate cyclase stimulator; SPAP, systolic pulmonary artery pressure; TCA, total circulatory arrest.