On April 18th, a group of German and Italian researchers published this article on the impact of episiotomy on pelvic floor dysfunction. The paper found that "Episiotomy appears to be a protective factor for women's wellness. Women who had episiotomy and who experienced perineal symptoms have a better psycho-physical health status in the 12.79 months follow-up."
Available for download is a 15 page PDF of "Impact of episiotomy on pelvic floor disorders and their influence on women's wellness after the sixth month postpartum: a retrospective study". The PDF contains research highlights (including Abstract, Background, Methods, Results and Conclusion)