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All Journal Bioscientia Medicina : Journal of Biomedicine and Translational Research Bioscientia Medicina : Journal of Biomedicine and Translational Research
Heristanto
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Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Levator Ani Avulsion as the Key Mediator Between Vaginal Delivery and Pelvic Organ Prolapse: A Systematic Review and Meta-Analysis of Imaging Studies Heristanto; Rahajeng
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 4 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i4.1547

Abstract

Background: Vaginal childbirth is universally recognized as the primary etiological factor for pelvic organ prolapse (POP), yet the precise biomechanical cascade remains a subject of intense investigation. While connective tissue attenuation contributes to support failure, recent advanced imaging evidence suggests that levator ani avulsion (LAA)—a macroscopic traumatic detachment of the puborectalis muscle from the pubic ramus—acts as the fundamental structural mediator. This study aimed to systematically review and meta-analyze imaging-based literature to quantify the mediating role of LAA in the pathogenesis of POP. Methods: We conducted a systematic review and meta-analysis of observational studies utilizing magnetic resonance imaging (MRI) and 3D/4D Transperineal Ultrasound. The search strategy targeted longitudinal and cross-sectional studies comparing women with confirmed LAA to those with intact pelvic floors following vaginal delivery. Data were extracted regarding the prevalence of avulsion, pelvic organ prolapse quantification (POP-Q) stages, and levator hiatus dimensions. The primary outcome was the Odds Ratio (OR) of significant POP (Stage ³2). Secondary outcomes included quantitative analysis of hiatal ballooning. Data were synthesized using a random-effects model. Results: The analysis included 3,218 women across 9 high-quality imaging studies. The pooled analysis revealed a profound and statistically significant association between LAA and POP, with a pooled Odds Ratio of 3.84 (95% CI: 2.65–5.56; p < 0.0001). Women with LAA demonstrated a significantly larger levator hiatal area on Valsalva compared to those with intact muscles (Mean Difference: +6.03 cm²), confirming that avulsion leads to intractable hiatal ballooning. Long-term follow-up data (up to 23 years) indicated that this muscular defect does not heal and is associated with a progressive deterioration in pelvic organ support over time. Conclusion: Levator ani avulsion is the critical biomechanical mediator converting the event of vaginal delivery into the chronic pathology of prolapse. The injury compromises the dynamic closure of the levator hiatus, resulting in hiatal ballooning and subsequent apical and anterior compartment descent. These findings necessitate a paradigm shift in obstetric counseling and emphasize the need for preventative strategies to minimize traumatic muscle injury during the second stage of labor.
Levator Ani Avulsion as the Key Mediator Between Vaginal Delivery and Pelvic Organ Prolapse: A Systematic Review and Meta-Analysis of Imaging Studies Heristanto; Rahajeng
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 4 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i4.1547

Abstract

Background: Vaginal childbirth is universally recognized as the primary etiological factor for pelvic organ prolapse (POP), yet the precise biomechanical cascade remains a subject of intense investigation. While connective tissue attenuation contributes to support failure, recent advanced imaging evidence suggests that levator ani avulsion (LAA)—a macroscopic traumatic detachment of the puborectalis muscle from the pubic ramus—acts as the fundamental structural mediator. This study aimed to systematically review and meta-analyze imaging-based literature to quantify the mediating role of LAA in the pathogenesis of POP. Methods: We conducted a systematic review and meta-analysis of observational studies utilizing magnetic resonance imaging (MRI) and 3D/4D Transperineal Ultrasound. The search strategy targeted longitudinal and cross-sectional studies comparing women with confirmed LAA to those with intact pelvic floors following vaginal delivery. Data were extracted regarding the prevalence of avulsion, pelvic organ prolapse quantification (POP-Q) stages, and levator hiatus dimensions. The primary outcome was the Odds Ratio (OR) of significant POP (Stage ³2). Secondary outcomes included quantitative analysis of hiatal ballooning. Data were synthesized using a random-effects model. Results: The analysis included 3,218 women across 9 high-quality imaging studies. The pooled analysis revealed a profound and statistically significant association between LAA and POP, with a pooled Odds Ratio of 3.84 (95% CI: 2.65–5.56; p < 0.0001). Women with LAA demonstrated a significantly larger levator hiatal area on Valsalva compared to those with intact muscles (Mean Difference: +6.03 cm²), confirming that avulsion leads to intractable hiatal ballooning. Long-term follow-up data (up to 23 years) indicated that this muscular defect does not heal and is associated with a progressive deterioration in pelvic organ support over time. Conclusion: Levator ani avulsion is the critical biomechanical mediator converting the event of vaginal delivery into the chronic pathology of prolapse. The injury compromises the dynamic closure of the levator hiatus, resulting in hiatal ballooning and subsequent apical and anterior compartment descent. These findings necessitate a paradigm shift in obstetric counseling and emphasize the need for preventative strategies to minimize traumatic muscle injury during the second stage of labor.
Efficacy, Safety, and Long-Term Continuation of Vaginal Pessaries for Pelvic Organ Prolapse: A Systematic Review and Meta-Analysis Heristanto; Rahajeng
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 5 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i5.1576

Abstract

Background: Pelvic organ prolapse (POP) represents a profound failure of pelvic floor anatomy, significantly impairing patient quality of life through complex functional and anatomical derangements. Vaginal pessaries stand as the primary conservative intervention. However, the contemporary literature remains fragmented regarding their long-term adherence kinetics and comparative pathophysiological efficacy against definitive surgical reconstruction. Methods: A systematic review and meta-analysis were conducted, adhering strictly to PRISMA 2020 guidelines. Major scientific databases, including PubMed, Scopus, and Cochrane CENTRAL, were systematically searched for randomized controlled trials and prospective cohorts published between 2016 and 2026. Data synthesis employed a random-effects model, calculating Standardized Mean Differences (SMD) for validated symptom scores and pooled prevalence for longitudinal continuation and adverse events. Results: Seven major studies comprising 2,772 participants were included. The pooled short-term continuation rate under twelve months was 76.6% (95% CI 68.2–85.0%), which demonstrated a predictable decline to 53.4% (95% CI 45.1–61.7%) beyond one year. Meta-analysis of validated symptom scores (PFDI-20) demonstrated a robust, transformative reduction in prolapse distress (SMD -1.24; 95% CI -1.56 to -0.92, p < 0.0001), showing statistical equivalence to surgical outcomes in advanced prolapse cohorts. Adverse events were uniformly mild, dominated by vaginal discharge (pooled prevalence 18.6%) and occult stress incontinence (11.4%). Conclusion: Vaginal pessaries provide a high magnitude of pathophysiological symptom relief that parallels surgical correction in the short to medium term. By biomechanically restoring the pelvic axes, pessaries neutralize visceral nerve traction. While long-term continuation inevitably declines due to behavioral fatigue, the superior safety profile establishes pessaries as a definitive therapeutic modality.
Efficacy, Safety, and Long-Term Continuation of Vaginal Pessaries for Pelvic Organ Prolapse: A Systematic Review and Meta-Analysis Heristanto; Rahajeng
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 5 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i5.1576

Abstract

Background: Pelvic organ prolapse (POP) represents a profound failure of pelvic floor anatomy, significantly impairing patient quality of life through complex functional and anatomical derangements. Vaginal pessaries stand as the primary conservative intervention. However, the contemporary literature remains fragmented regarding their long-term adherence kinetics and comparative pathophysiological efficacy against definitive surgical reconstruction. Methods: A systematic review and meta-analysis were conducted, adhering strictly to PRISMA 2020 guidelines. Major scientific databases, including PubMed, Scopus, and Cochrane CENTRAL, were systematically searched for randomized controlled trials and prospective cohorts published between 2016 and 2026. Data synthesis employed a random-effects model, calculating Standardized Mean Differences (SMD) for validated symptom scores and pooled prevalence for longitudinal continuation and adverse events. Results: Seven major studies comprising 2,772 participants were included. The pooled short-term continuation rate under twelve months was 76.6% (95% CI 68.2–85.0%), which demonstrated a predictable decline to 53.4% (95% CI 45.1–61.7%) beyond one year. Meta-analysis of validated symptom scores (PFDI-20) demonstrated a robust, transformative reduction in prolapse distress (SMD -1.24; 95% CI -1.56 to -0.92, p < 0.0001), showing statistical equivalence to surgical outcomes in advanced prolapse cohorts. Adverse events were uniformly mild, dominated by vaginal discharge (pooled prevalence 18.6%) and occult stress incontinence (11.4%). Conclusion: Vaginal pessaries provide a high magnitude of pathophysiological symptom relief that parallels surgical correction in the short to medium term. By biomechanically restoring the pelvic axes, pessaries neutralize visceral nerve traction. While long-term continuation inevitably declines due to behavioral fatigue, the superior safety profile establishes pessaries as a definitive therapeutic modality.
Co-Authors Rahajeng