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Table 1 Demographics, pathological and surgical variable in BMI groups of 551 patients under LH (operation details in the four groups)

From: The impact of body mass index on short-term surgical outcomes after laparoscopic hepatectomy, a retrospective study

  Total Group1 Group2 Group3 Group4 ≥ 28 kg/m2 P value
   <18.5 kg/m2 18.5-23.9 kg/m2 24-27.9 kg/m2   
  N = 551 N = 37 N = 339 N = 146 N = 29  
Age (years) 51.00 ± 12.69 47.46 ± 14.60 51.06 ± 12.82 51.71 ± 12.40 51.24 ± 9.65 0.340
Female/Male 311/240 26/11 186/153 83/63 16/13 0.355
ASAI 144 10 83 43 8 0.933
ASAII 377 25 237 96 19 0.601
ASAIII 29 2 19 6 2 0.637
ASAIV 1 0 0 1 0 0.905
Diabetes 20 1 13 5 1 0.985
Operative time(min, mean ± SD)
  165.83 ± 93.63 179.97 ± 134.68 168.58 ± 91.41 159.22 ± 82.30 148.97 ± 109.90 0.424
Postoperative length of stay (min, mean ± SD)
  9.82 ± 6.25 8.24 ± 3.56 9.81 ± 6.07 9.76 ± 5.83 12.34 ± 10.92 0.068
Postoperative length of stay of conversion patients (min, mean ± SD)
  13.90 ± 7.6 8.20 ± 2.17 14.29 ± 7.20 12.68 ± 3.40 18.00 ± 13.91 0.002*
Estimated blood loss (ml, mean ± SD)
  468.26 ± 62 448.65 ± 595.34 480.81 ± 621.91 424.01 ± 560.17 569.31 ± 920.84 0.179
Abdominal operation history
  174(31.58 %) 13(37.14 %) 103(30.38 %) 49(33.56 %) 9(31.03 %) 0.457
Blood transfusion 88(15.97 %) 3(8.1 %) 50(14.7 %) 29 (19.9 %) 6(20.7 %) 0.240
Complication 66(11.98 %) 8 (22.86 %) 43(12.68 %) 12 (8.22 %) 3(10.34 %) 0.142
Severity of complication (Clavien -Dindo)
I–II/III–IV 51/15 8/0 31/12 10/2 2/1 0.354
Conversion 72/551(13.1 %) 5(13.50 %) 39(11.5 %) 19(13.0 %) 9(31.0 %) 0.030*
Type of surgery
Wedge resection 119 7 68 33 11 0.388
Segmenttectomy 74 2 50 19 3 0.000*
Left lateral hepatectoy 184 17 108 48 11 0.229
Left hemihepatectomy 144 10 92 39 3 0.000*
Right hemihepatectoy 23 1 16 5 1 0.221
Caudate hepatectomy 7 0 5 2 0 0.088
Diagnosis
Maliganmacy/Benign 141/410 10/27 88/251 35/111 8/21 0.955
Maliganmacy
Hepatocellular carcinoma 99 5 64 25 5 0.613
Metastatic hepatic 23 2 13 6 2 0.941
Carcinoma 11 1 8 1 1 0.574
Chalangiocarcinoma 9 0 7 1 1 0.483
Benign
Hepatic hemangioma 162 10 95 45 12 0.341
Intrahepatic stone 191 15 117 53 6 0.503
Focalnodularhyperplasa 27 2 19 5 1 0.756
Hepatic cyst 13 1 6 6 0 0.376
Adenoma 8 1 4 2 1 0.702
Others 8 0 6 2 0 0.750
  1. Values are presented as mean ± SD, median (percentage)
  2. ASA American Society of Anesthesiology
  3. *P<0.05