Skip to main content

Table 2 The perioperative and follow-up outcomes of included patients

From: Comparison of retroperitoneal laparoscopic versus open adrenalectomy for large pheochromocytoma: a single-center retrospective study

  Before PSM After PSM
Variable RLA (n = 101) OA (n = 46) P value RLA (n = 46) OA (n = 46) P value
Intraoperative data
 Hemodynamic instability [n (%)] 46 (45.54) 26 (56.52) 0.217 25 (54.35) 26 (56.52) 0.834
 Operating time (min) 185 (89, 520) 245 (107, 480) 0.003 218 (93, 367) 245 (107, 480) 0.040
 Estimated blood loss (mL) 150 (50, 2300) 500 (50, 3000) 0.047 200 (50, 1500) 500 (50, 3000) 0.794
 Transfusion [n (%)] 31 (30.69) 29 (63.04) < 0.001 21 (45.65) 29 (63.04) 0.094
 Immediate postoperative hemoglobin (g/L) 106 (69, 161) 107 (79, 150) 0.607 107 (77,138) 107 (79, 150) 0.721
 Change in hemoglobin (g/L) 18.0 (7.0, 38.0) 10.0 (5.0, 28.0) 0.206 14.0 (7.0, 27.3) 10.0 (5.0, 28.0) 0.412
 Open conversion [n (%)] 6 (5.94) 2 (4.35)
Postoperative data
 Postoperative complications [n (%)]       
  Overall morbidity 39 (38.61) 16 (34.78) 0.656 21 (45.65) 16 (34.78) 0.288
  Clavien III/IV 15 (14.85) 4 (8.70) 0.489 7 (15.22) 4 (8.70) 0.443
 Cardiovascular morbidity causes [n (%)]       
  Postoperative hypertension 12 (11.88) 5 (10.87) 0.859 8 (17.39) 5 (10.87) 0.369
  Postoperative transfusion 9 (8.91) 0 (0) 0.057 4 (8.70) 0 (0) 0.058
  Postoperative hypotension 8 (7.92) 3 (6.52) 0.765 5 (10.87) 3 (6.52) 0.459
  Return to diet (days) 2 (1, 3) 3 (1, 4) 0.003 2 (1, 2) 3 (1, 4) 0.046
  Time to drain removal (days) 4 (2, 8) 4 (3, 8) 0.997 4 (2, 7) 4 (3, 8) 0.174
  Postoperative hospital stay (days) 7 (4, 12) 9 (5, 14) < 0.001 8 (5, 10) 9 (5, 14) 0.010
Follow-up data
 Follow-up period (months) 42.6 (2.8, 118.8) 70.8 (4.0, 117.5)   40.9 (9.5, 102.5) 70.8 (4.0, 117.5)  
 Improvement BP [n (%)] 81 (80.20) 32 (69.57) 0.156 38 (82.61) 32 (69.57) 0.143
  1. Abbreviations: PSM the propensity score matching, RLA retroperitoneal laparoscopic adrenalectomy, OA open adrenalectomy, bpm beats per minute, MAP mean arterial pressure, SBP systolic blood pressure, HR heart rate