6 | Oas and Barteles (1990) [9] , UK | There were no patients with haemorrhage on the laser surgery side. Less blood loss with laser tonsillectomy. | ||
7 | Krespi [10] , New York, USA | No peri-operative or anaesthesia-related complications | 1 secondary haemorrhage which occurred on the laser side on fifth postoperative day. | |
8 | Remacle et al. [11] , Belgium | No early or delayed bleeding the dissection side monopolar electrocautery was required for two patients. | No second time surgery has been necessary for bleeding control. | |