{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T06:52:16Z","timestamp":1772520736106,"version":"3.50.1"},"reference-count":26,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T00:00:00Z","timestamp":1771977600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Obstetric anal sphincter injuries (OASISs) are severe complications of vaginal delivery that can result in long-term pelvic floor dysfunction and reduced quality of life. Global data indicate a rising incidence of OASISs, including in Lithuania. This study aimed to identify risk factors for OASISs and evaluate their impact on urinary (UI) and fecal incontinence (FI), pelvic organ prolapse (POP), and quality of life in affected women. Materials and Methods: A retrospective case\u2013control study was conducted at the Lithuanian University of Health Sciences Hospital (LUHS) Kauno Klinikos in 2024. Women who gave birth between 2004 and 2023 and experienced OASIS (n = 90) were compared with women matched for birth history but without perineal tears (n = 90). Data were collected from medical records and electronic questionnaires, including the International Consultation on Incontinence Questionnaire\u2014Short Form (ICIQ-SF), Wexner score, Pelvic Organ Prolapse Symptom Score (POP-SS), and Pelvic Floor Impact Questionnaire (PFIQ-7). Participants were grouped by delivery year (2004\u20132013 or 2014\u20132023). Statistical analysis was performed using Mann\u2013Whitney U, Chi-square, Fisher\u2019s exact and Student\u2019s t-tests, with p &lt; 0.05 considered significant. Results: Newborn weight and vacuum-assisted delivery were significantly associated with OASIS (p &lt; 0.05 and p = 0.029). In the 2014\u20132023 cohort, women with OASIS reported significantly higher rates and severity of UI, FI, and POP symptoms compared to controls. Quality of life scores related to UI and FI were significantly worse in the recent OASIS group, whereas no significant differences were observed in the 2004\u20132013 cohort. Conclusions: Between 2004 and 2023, 0.4% of women who gave birth at LUHS experienced third- or fourth-degree perineal tears, with newborn weight and vacuum extraction identified as risk factors. These women reported higher rates of UI and FI and POP, and those who delivered between 2014 and 2023 rated their related quality of life significantly worse than women without OASIS.<\/jats:p>","DOI":"10.3390\/medicina62030433","type":"journal-article","created":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T11:23:45Z","timestamp":1772105025000},"page":"433","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Obstetric Anal Sphincter Injuries: Risk Factors, Pelvic Floor Dysfunction, and Quality of Life Outcomes"],"prefix":"10.3390","volume":"62","author":[{"given":"Kristina","family":"Ivoskaite","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atene","family":"Simanauskaite","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7043-4635","authenticated-orcid":false,"given":"Egle","family":"Bartuseviciene","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dalia Regina","family":"Railaite","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laima","family":"Maleckiene","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-1344-5787","authenticated-orcid":false,"given":"Justina","family":"Kacerauskiene","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,25]]},"reference":[{"key":"ref_1","unstructured":"United Nations, Department of Economic and Social Affairs, Population Division (2022). World Population Prospects: The 2022 Revision, United Nations."},{"key":"ref_2","unstructured":"World Health Organization (2021). Caesarean Section Rates Continue to Rise, Amid Growing Inequalities in Access, World Health Organization."},{"key":"ref_3","first-page":"1410","article-title":"Perineal care","volume":"2015","author":"Frohlich","year":"2015","journal-title":"BMJ Clin. Evid."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"35","DOI":"10.31128\/AFP-09-17-4333","article-title":"Perineal tears\u2014A review","volume":"47","author":"Goh","year":"2018","journal-title":"Aust. J. Gen. Pract."},{"key":"ref_5","unstructured":"Ministry of Health of the Republic of Lithuania Guidelines (2019). Tarpviet\u0117s Ply\u0161imai. Epiziotomija."},{"key":"ref_6","first-page":"297","article-title":"The effects of perineal tears during childbirth on women\u2019s sex life","volume":"17","author":"Rodaki","year":"2022","journal-title":"Maedica"},{"key":"ref_7","unstructured":"Tarasevi\u010dien\u0117, V., Bir\u017eietis, T., Statnickait\u0117, A., and Andrijonyt\u0117, M. (2013). N\u0117\u0161tumo ir gimdymo eigos \u012ftaka III\u2013IV laipsnio tarpviet\u0117s ply\u0161imams. Lithuanian Obstetrics & Gynecology. 10-Asis Lietuvos Aku\u0161eri\u0173 Ginekolog\u0173 Draugijos Suva\u017eiavimas: 2013 m. Rugs\u0117jo 13-14 d., \u0160iauliai Lietuvos Aku\u0161eri\u0173 Ginekolog\u0173 Draugija\u2014LAGD., Vitae Litera."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Simanauskait\u0117, A., Ka\u010derauskien\u0117, J., Railait\u0117, D.R., and Bartusevi\u010dien\u0117, E. (2024). The Impact of Pelvic Floor Muscle Strengthening on the Functional State of Women Who Have Experienced OASIS After Childbirth. Medicina, 61.","DOI":"10.3390\/medicina61010022"},{"key":"ref_9","unstructured":"(2015). The Management of Third- and Fourth-Degree Perineal Tears, Royal College of Obstetricians and Gynaecologists (RCOG). Green-top Guideline No. 29."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"102719","DOI":"10.1016\/j.jogc.2024.102719","article-title":"Guideline No. 457: Obstetrical Anal Sphincter Injuries (OASIS) Part I: Prevention, Recognition, and Immediate Management","volume":"46","author":"Globerman","year":"2024","journal-title":"J. Obstet. Gynaecol. Can."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"488","DOI":"10.1111\/aogs.14742","article-title":"Prevention of obstetric anal sphincter injuries with perineal support and lateral episiotomy: A historical cohort study","volume":"103","author":"Rygh","year":"2024","journal-title":"Acta Obstet Gynecol Scand."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1262","DOI":"10.1111\/aogs.14425","article-title":"Obstetric anal sphincter injuries\u2014Maternal, fetal and sociodemographic risk factors: A retrospective register-based study","volume":"101","author":"Stuart","year":"2022","journal-title":"Acta Obstet. Gynecol. Scand."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Baruch, Y., Gold, R., Eisenberg, H., Amir, H., Yogev, Y., and Groutz, A. (2022). Substantial Obstetric Anal Sphincter Injury during Vacuum-Assisted Delivery: An Obstetrical Issue or Device Related?. J. Clin. Med., 11.","DOI":"10.3390\/jcm11236990"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1002\/uog.26049","article-title":"Underdiagnosis of internal anal sphincter trauma following vaginal delivery","volume":"61","author":"Kelly","year":"2023","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"507","DOI":"10.1016\/j.jviscsurg.2020.10.010","article-title":"Management and consequences of obstetrical anal sphincter injuries: Review","volume":"158","author":"Viannay","year":"2021","journal-title":"J. Visc. Surg."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"4209","DOI":"10.1038\/s41598-021-91799-8","article-title":"Pelvic floor dysfunction one year after first childbirth in relation to perineal tear severity","volume":"11","author":"Huber","year":"2021","journal-title":"Sci. Rep."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"495","DOI":"10.1002\/uog.26292","article-title":"Prevalence and risk factors of sonographic obstetric anal sphincter injury (US-OASI): A systematic review and meta-analysis","volume":"62","author":"Packet","year":"2023","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_18","first-page":"596","article-title":"Anal sphincter defects and fecal incontinence 15\u201323 years after first delivery: A cohort study","volume":"46","author":"Salvesen","year":"2015","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"5","DOI":"10.21037\/gpm-22-47","article-title":"Obstetric anal sphincter injury\u2014The long game: Primary and cumulative anal sphincter injury during childbirth and its long-term implications\u2014A clinical practice review","volume":"6","author":"Walsh","year":"2023","journal-title":"Gynecol. Pelvic Med."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Sartore, A., Scalia, M.S., Mangino, F.P., Savastano, G., Magni, E., and Ricci, G. (2024). Pelvic floor function after third and fourth degree perineal lacerations: A case-control study on quality of life. BMC Womens Health, 24.","DOI":"10.1186\/s12905-023-02739-9"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"723","DOI":"10.1016\/S0889-8545(05)70039-5","article-title":"Epidemiology and natural history of pelvic floor dysfunction","volume":"25","author":"Bump","year":"1998","journal-title":"Obstet. Gynecol. Clin. N. Am."},{"key":"ref_22","unstructured":"Persson, J., Lindqvist, M., Stenholm, S., and Josefsson, A. (2023). Long-Term Maternal Morbidity After Obstetric Anal Sphincter Injury (OASIS)\u2014The POST-OASIS Project, Ume\u00e5 University. Ume\u00e5 University Research Projects."},{"key":"ref_23","first-page":"45","article-title":"Women\u2019s perception of postpartum pelvic floor dysfunction and their help-seeking behaviour: A qualitative interview study","volume":"26","author":"Buurman","year":"2012","journal-title":"Scand. J. Caring Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1207","DOI":"10.1007\/s00192-025-06043-y","article-title":"Knowledge, attitude, and practice toward pelvic floor dysfunction among postpartum and postmenopausal women: A cross-sectional study","volume":"36","author":"Lin","year":"2025","journal-title":"Int. Urogynecol. J."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Mart\u00ednez-V\u00e1zquez, S., Peinado Molina, R.A., Bermejo-Cantarero, A., and Mart\u00ednez-Galiano, J.M. (2024). A qualitative exploration of the perceptions of women living with pelvic floor disorders and factors related to quality of life. J. Clin. Med., 13.","DOI":"10.3390\/jcm13071896"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Wu, X., Yi, X., Zheng, X., Chen, Z., Liu, J., and Dai, X. (2023). Knowledge, attitudes, and practice of pelvic floor dysfunction and pelvic floor ultrasound among women of childbearing age in Sichuan, China. Front. Public Health, 11.","DOI":"10.3389\/fpubh.2023.1160733"}],"container-title":["Medicina"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1648-9144\/62\/3\/433\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T05:52:37Z","timestamp":1772517157000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1648-9144\/62\/3\/433"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,25]]},"references-count":26,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026,3]]}},"alternative-id":["medicina62030433"],"URL":"https:\/\/doi.org\/10.3390\/medicina62030433","relation":{},"ISSN":["1648-9144"],"issn-type":[{"value":"1648-9144","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,25]]}}}