Is mediolateral episiotomy angle associated with postpartum perineal pain in primiparous women?

OBJECTIVE: Our aim is to elucidate the relationship between mediolateral episiotomy (MLE) angle and postpartum perineal pain. METHODS: This study was designed prospectively. Primiparous women with MLE in the postpartum period were included in the study and divided into three groups according to episiotomy angle ranges (Group 1: <40°, Group 2: 40°–60°, and Group 3: >60°). Postpartum perineal pain was quantified with the short-form McGill Pain questionnaire (SF-MPQ) consisting of the following three parts: Sensory-affective-verbal descriptions, visual pain scale (VPS), and present pain intensity scale (PPI). Postpartum perineal pain scores on days 1 and 7 were compared among the angle group. RESULTS: Overall, 86 eligible women were enrolled in this study. Seventy-three women (85%) scored the perineal pain between 0 and 3 on the VPS and 13 women (15%) rated the pain from 4 to 6 on the 1(st) postpartum day. No significant differences were noted among the three groups regarding the total pain scores on SF-MPQ and on the each part of form at the 1(st) postpartum day. At 7 days postpartum, total pain score was found significantly high in Group 1 [Med; IQR (min-max)=0; 4 (0–5)] compared with Group 2 [Med; IQR (min-max)=0; 0(0–5)]. The pain scores obtained from the sensory, affective, VPS, and PPI parts of the questionnaire were [Med; IQR (min-max)=0; 1 (0–2)], [Med; IQR (min-max)=0; 1 (0–1)], [Med; IQR (min-max)=0; 2 (0–2)], and [Med; IQR (min-max)=0; 0.25 (0–1)], respectively, in Group 1. For Group 2, pain scores obtained from the sensory, affective, and PPI were [Med; IQR (min-max)=0; 0(0-1)]; and VPS was [Med; IQR (min-max)=0; 0(0-2)]. No significant differences were observed between Groups 1 and 2 for each part of the questionnaire on day 7. Percentage of need for analgesics on day 7 was found significantly higher in Group 1 (42.9%) than Group 2 (31.2%) CONCLUSION: MLE at an angle <40° to the midline is associated with a higher score of perineal pain and an increase need for analgesics during the early postpartum days.