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Table 2 Surgery-related variables

From: Ultrasonic dissection versus electrocautery dissection in laparoscopic cholecystectomy for acute cholecystitis: a randomized controlled trial (SONOCHOL-trial)

 

N (%)

N (%)

Electrocautery dissection (n = 148)

Ultrasonic dissection (n = 152)

Time of surgery

Daytime

79 (53.4)

70 (46.1)

Week time evening/night

42 (28.4)

48 (31.6)

Weekend

26 (17.6)

34 (22.4)

Missing

1 (0.7)

N/A

Surgical access

Laparoscopic

144 (97.3)

151 (99.3)

Converted

4 (2.7)

1 (0.7)

Direction of dissection

From Calot’s and up

128 (86.5)

89 (58.6)

Fundus first

3 (2.0)

26 (17.1)

Mixed technique

17 (11.5)

37 (24.3)

Level of cholecystitis

  

Accidental gallbladder perforation

Yes

77 (52.0)

87 (57.2)

No

71 (48.0)

65 (42.8)

Voluntary bile aspiration

Yes

93 (62.8)

98 (64.5)

No

53 (35.8)

54 (35.5)

Missing

2 (1.4)

 

Antibiotics

Yes, prophylaxis

65 (43.9)

49 (32.2)

Yes, treatment

51 (34.5)

65 (42.8)

No

32 (21.6)

38 (25.0)

Thrombosis prophylaxis

Yes

86 (58.1)

92 (60.5)

No

62 (41.9)

60 (39.5)

Intraoperative findings (several options possible)

Mild cholecystitis

36 (24.3)

28 (18.4)

Advanced cholecystitis

81 (54.7)

93 (61.2)

Emphysematous cholecystitis

0

4 (2.6)

Gangrene

26 (17.6)

44 (28.9)

Liver abscess

1 (0.7)

1 (0.7)

Pericholecystic abscess

2 (1.4)

9 (5.9)

Spontaneous gallbladder perforation

8 (5.4)

8 (5.3)

Bile peritonitis

3 (2.0)

0

Acute cholecystitis with chronic signs

34 (23.0)

31 (20.4)

Acalculous cholecystitis

1 (0.7)

2 (1.3)

Missing

1 (0.7)

N/A