Table 9: LigaSure™ diathermy dissection versus conventional diathermy dissection
Study n LigaSure/conventional Study regimen Analgesia given to all groups Pain scores and type if specified Postoperative supplemental analgesia Functional outcomes Other important outcomes (Franklin 2003) LoE 1 17/17 LigaSure™ diathermy dissection (LIG) versus conventional diathermy dissection (CON) (all patients underwent Modified Ferguson haemorrhoidectomy) Not reported VAS pain scores: LIG superior on days 1 (p<0.001) and 14 (p=0.002). Pain on first defecation: LIG superior (p<0.001) Not reported Incontinence scores: NS Length of hospital stay: NS LoE 1 20/20 LigaSure™ diathermy dissection (LIG) versus conventional diathermy dissection (CON) (modified open Milligan-Morgan haemorrhoidectomy in both groups) In hospital: IM morphine 10 mg and co-codamol (2 tablets) for pain control. Discharge medication: diclofenac 50 mg 3 x daily, co-codamol (2 tablets) NS pain scores on days 1–7 NS oral analgesic use Time to first bowel motion: NS Intra-operative blood loss: LIG superior (p<0.001) Number of postoperative complications (including haemorrhage and urinary retention): NS Length of hospital stay: LIG superior (p<0.05) Time to return to normal activity: NS Patient satisfaction: NS at 3 months (Milito 2002) LoE 2 29/27 LigaSure™ diathermy dissection (LIG) versus conventional diathermy dissection (CON) (modified open Milligan-Morgan haemorrhoidectomy in both groups) Oral ketoprofen, 2 x 50 mg tablets on demand, max 3 x per day NS pain scores Number of analgesic administrations: LIG superior (p<0.001) Time to complete wound healing: LIG superior (p<0.0001). Time to first bowel movement: NS Urinary retention: NS Constipation: NS Time to return to work/full activity: LIG superior (p<0.01). Length of hospital stay: NS (Palazzo 2002) LoE 1 18/16 LigaSure™ diathermy dissection (LIG) versus conventional diathermy dissection (CON) (open haemorrhoidectomy in both groups) Tramadol 50 mg as required, up to 100 mg every 4 h and 400 mg daily NS pain scores Total 7-day tramadol requirement: LIG superior (p=0.013) No anal stenosis, loss of anal tone, or incontinence reported in either group at 6 weeks Complications (reactive bleeding secondary bleeding, urinary retention): 3 (LIG) versus 0 (CON) Overall satisfaction: NS LoE 1 42/42 LigaSure™ diathermy with submucosal dissection (LIG) versus conventional (CON) diathermy dissection (all patients underwent closed Oral paracetamol 500 mg, 1 tablet four times per day, and additional parenteral analgesics administered if needed VAS pain scores at 24 h: LIG superior (p<0.0001) Parenteral analgesic requirement: LIG superior (p<0.0001) Complete wound healing at 6 weeks: NS Anal stenosis at 6 weeks: NS Flatus incontinence at 6 weeks: NS Intraop blood loss: LIG superior (p<0.0001) Incidence of urinary retention, haemorrhage, and constipation: NS Time to return to work/normal activities: LIG superior (p<0.0001) Length of hospital stay: LIG superior (p<0.0001)