Table 1.

OP technique

	Kind of study	OP technique	Number of patients	Outcome
Healey et al. [73]	RCT	Excision vs ablation with CO2 laser	178	No significant difference at 12 months (improvement of patients’ symptoms in both arms). Trends in improvement of dyschezia and dyspareunia
Wright et al. (75)	Prospective randomized	Excision vs ablation	24	No significant difference (symptom relief at 6 months in both arms)
Radosa et al. (74)	Retrospective	Excision vs coagulation	79	Coagulation group better for dysmenorrhea and the number of recurrence with subsequent surgical intervention (2.8 vs 18.6%)
Riley [71]	RCT	Excision vs ablation by using an argon beam coagulator	73	Ablation group better for dyspareunia at 6 months only. No significant difference at 12 months