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Keywords = levator ani muscle

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8 pages, 3763 KB  
Case Report
Robotic-Assisted Total Pelvic Exenteration for Rectal Cancer Using the Hugo™ RAS System: First Case Report
by Kosuke Hiramatsu, Shigeo Toda, Shuichiro Matoba, Daisuke Tomita, Yusuke Maeda, Naoto Okazaki, Yudai Fukui, Yutaka Hanaoka, Masashi Ueno, Suguru Oka, Tomoaki Eguchi and Hiroya Kuroyanagi
J. Clin. Med. 2025, 14(18), 6603; https://doi.org/10.3390/jcm14186603 - 19 Sep 2025
Viewed by 658
Abstract
Introduction: Total pelvic exenteration (TPE) is a radical procedure for advanced pelvic malignancies involving adjacent organs. The Hugo™ RAS System is a novel robotic platform, but its application in TPE has not previously been reported. We describe the first case of robotic-assisted [...] Read more.
Introduction: Total pelvic exenteration (TPE) is a radical procedure for advanced pelvic malignancies involving adjacent organs. The Hugo™ RAS System is a novel robotic platform, but its application in TPE has not previously been reported. We describe the first case of robotic-assisted TPE using Hugo™ RAS in a patient with locally advanced rectal cancer invading the prostate. Methods: A 69-year-old male with mucous and bloody stools was diagnosed with cT4b (prostate, levator ani muscle) N0M0 rectal cancer. After short-course radiotherapy (25 Gy/5 fractions), robotic-assisted TPE was performed. Port placement was planned to coincide with future colostomy and urostomy sites to minimize abdominal wall trauma. En bloc resection was achieved, followed by pelvic reconstruction with a gluteus maximus musculocutaneous flap and fascia lata autograft. Urinary diversion was completed with a robotic intracorporeal Wallace-type ileal conduit. Results: The operation lasted 17 h 56 min, with 175 mL blood loss. Postoperatively, Clavien–Dindo grade IIIa paralytic ileus occurred but was managed conservatively. Pathology revealed pT4b (prostate) N1a M0 disease with negative circumferential margin (11 mm). No recurrence was observed at 9 months. Conclusions: This case highlights the technical feasibility and safety of Hugo™ RAS-assisted TPE. Further clinical experience is needed to confirm reproducibility and oncologic safety. Full article
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13 pages, 2016 KB  
Article
Pelvic Floor Adaptation to a Prenatal Exercise Program: Does It Affect Labor Outcomes or Levator Ani Muscle Injury? A Randomized Controlled Trial
by Aránzazu Martín-Arias, Irene Fernández-Buhigas, Daniel Martínez-Campo, Adriana Aquise Pino, Valeria Rolle, Miguel Sánchez-Polan, Cristina Silva-Jose, Maria M. Gil and Belén Santacruz
Diagnostics 2025, 15(15), 1853; https://doi.org/10.3390/diagnostics15151853 - 23 Jul 2025
Viewed by 1797
Abstract
Background: Physical exercise during pregnancy is strongly recommended due to its well-established benefits for both mother and child. However, its impact on the pelvic floor remains insufficiently studied. This study aimed to evaluate pelvic floor adaptations to a structured prenatal exercise program using [...] Read more.
Background: Physical exercise during pregnancy is strongly recommended due to its well-established benefits for both mother and child. However, its impact on the pelvic floor remains insufficiently studied. This study aimed to evaluate pelvic floor adaptations to a structured prenatal exercise program using transperineal ultrasound, and to assess associations with the duration of the second stage of labor and mode of delivery. Methods: This is a planned secondary analysis of a randomized controlled clinical trial (RCT) (NCT04563065) including women with singleton pregnancies at 12–14 weeks of gestation. Participants were randomized to either an exercise group, which followed a supervised physical exercise program three times per week, or a control group, which received standard antenatal care. Transperineal ultrasound was used at the second trimester of pregnancy and six months postpartum to measure urogenital hiatus dimensions at rest, during maximal pelvic floor contraction, and during the Valsalva maneuver, to calculate hiatal contractility and distensibility and to evaluate levator ani muscle insertion. Regression analyses were performed to assess the relationship between urogenital hiatus measurements and both duration of the second stage of labor and mode of delivery. Results: A total of 78 participants were included in the final analysis: 41 in the control group and 37 in the exercise group. The anteroposterior diameter of the urogenital hiatus at rest was significantly smaller in the exercise group compared to controls (4.60 mm [SD 0.62] vs. 4.91 mm [SD 0.76]; p = 0.049). No other statistically significant differences were observed in static measurements. However, contractility was significantly reduced in the exercise group for both the latero-lateral diameter (8.54% vs. 4.04%; p = 0.012) and hiatus area (20.15% vs. 12.55%; p = 0.020). Distensibility was similar between groups. There were no significant differences in the duration of the second stage of labor or mode of delivery. Six months after delivery, there was an absolute risk reduction of 32.5% of levator ani muscle avulsion in the exercise group compared to the control group (53.3% and 20.8%, respectively; p = 0.009). Conclusions: A supervised exercise program during pregnancy appears to modify pelvic floor morphology and function, reducing the incidence of levator ani muscle avulsion without affecting the type or duration of delivery. These findings support the safety and potential protective role of prenatal exercise in maintaining pelvic floor integrity. Full article
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17 pages, 456 KB  
Protocol
Evaluating the Effectiveness of Radiofrequency in Multimodal Physiotherapy for Postpartum Pelvic Pain: The RASDOP Protocol—A Mixed-Methods Study
by Beatriz Navarro-Brazález, Laura Lorenzo-Gallego, Paula Rangel-de la Mata, María Torres-Lacomba, Fernando Vergara-Pérez, Beatriz Sánchez-Sánchez and Nuria Izquierdo-Méndez
J. Clin. Med. 2025, 14(5), 1489; https://doi.org/10.3390/jcm14051489 - 23 Feb 2025
Cited by 1 | Viewed by 2279
Abstract
Background/Objectives: Approximately 30% of women experience pelvic pain one year after vaginal delivery, and this increases to 50% during vaginal intercourse. Multimodal physiotherapy is the first-line treatment for myofascial pain of the pelvic floor muscles (PFM), often incorporating emerging technologies like radiofrequency, [...] Read more.
Background/Objectives: Approximately 30% of women experience pelvic pain one year after vaginal delivery, and this increases to 50% during vaginal intercourse. Multimodal physiotherapy is the first-line treatment for myofascial pain of the pelvic floor muscles (PFM), often incorporating emerging technologies like radiofrequency, despite limited evidence supporting its use. The RASDOP study aims to (i) evaluate the effectiveness of multimodal physiotherapy combining therapeutic education, PFM training, and myofascial pain syndrome (MPS) management with or without radiofrequency, in reducing pain and improving sexual function postpartum; and (ii) explore the barriers and facilitators influencing adherence and perceived self-efficacy towards physiotherapy treatment in women with postpartum pelvic pain. Methods: This study employs a randomized clinical trial with a blinded examiner and two parallel groups, followed by a qualitative phenomenological study. A total of 124 postpartum women with pelvic pain (≥4 cm on the visual analogue scale) will be randomized into two groups: a multimodal physiotherapy group (therapeutic education, MPS treatment, and PFM training) and a radiofrequency + multimodal physiotherapy group (same treatment with additional non-ablative radiofrequency). Both groups will receive 12 supervised individual sessions. Assessments will be conducted pre- and post-intervention, and at 3-, 6-, and 12-month stages post-treatment. Primary outcomes include pain intensity and sexual function, while secondary outcomes involve PFM tone, strength, MPS presence, levator ani length, and distress caused by pelvic floor dysfunction. The qualitative study will utilize semi-structured interviews and focus groups analyzed thematically. Results: Radiofrequency is expected to enhance pain relief, sexual function, and PFM relaxation. Insights into adherence and barriers will aid in personalizing physiotherapy interventions. Conclusions: The RASDOP study will provide evidence on the safety and efficacy of radiofrequency in postpartum pelvic pain treatment and shed light on women’s experiences to improve therapeutic outcomes. Full article
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17 pages, 5313 KB  
Article
Evaluation of Perineal Descent Measurements on Pelvic Floor Imaging
by Isabelle M. A. van Gruting, Kirsten Kluivers, Aleksandra Stankiewicz, Joanna IntHout, Kim W. M. van Delft, Ranee Thakar and Abdul H. Sultan
J. Clin. Med. 2025, 14(2), 548; https://doi.org/10.3390/jcm14020548 - 16 Jan 2025
Viewed by 2164
Abstract
Objectives: The aim of this study is to validate a uniform method for measuring perineal descent which can be used for different imaging methods, to establish cut-off values for this measurement, and to assess diagnostic test accuracy (DTA) of imaging techniques using these [...] Read more.
Objectives: The aim of this study is to validate a uniform method for measuring perineal descent which can be used for different imaging methods, to establish cut-off values for this measurement, and to assess diagnostic test accuracy (DTA) of imaging techniques using these cut-off values. Secondly, the study aims to correlate perineal descent to symptoms, signs and imaging findings in women with obstructed defaecation syndrome (ODS) to assess its clinical relevance. Methods: Cross-sectional study of 131 women with symptoms of ODS. Symptoms and signs were assessed using validated methods. These women underwent evacuation proctography (EP), magnetic resonance imaging (MRI), transperineal ultrasound (TPUS) and endovaginal ultrasound (EVUS). Perineal descent was measured on EP and MRI as the position of anorectal junction (ARJ) with respect to the pubococcygeal line (PCL) at rest (i.e., static descent) and during evacuation (i.e., descent at Valsalva). Dynamic perineal descent was measured on all four imaging techniques as the difference between the position of the ARJ at rest and Valsalva. DTA of dynamic perineal descent was estimated using Latent Class Analysis in the absence of a reference standard. Results: Interobserver agreement of dynamic perineal descent measurements was good for MRI and EVUS (ICC 0.86 and 0.85) and moderate for EP and TPUS (ICC 0.61 and 0.59). The systematic differences in measurements between imaging techniques show the need for individual cut-off values. New established cut-off values for dynamic descent are for EP 20 mm, MRI 35 mm, TPUS 15 mm and EVUS 15 mm. Sensitivity was moderate for EP (0.78) and MRI (0.74), fair for TPUS (0.65) and poor for EVUS (0.58). Specificity was similar for all imaging techniques (0.73–0.77). Static perineal descent correlated with symptoms of pelvic organ prolapse (POP) (r = 0.19), prolapse of all three compartments (r = 0.19–0.36), presence of levator ani muscle avulsion (p = 0.01) and increased hiatal area (r = 0.51). Dynamic perineal descent correlated with excessive straining (r = 0.24) and use of laxatives (r = 0.24). Classic symptoms of ODS (incomplete evacuation and digitation) did not correlate with perineal descent measurements. Static and dynamic perineal descent were associated with presence of rectocele, enterocele, intussusception, and absence of anismus. Conclusions: Dynamic perineal descent is a reliable measurement that can be applied to different imaging techniques to allow standardisation. Static descent is more often present in women with POP and dynamic descent is more often present in women with constipation. Perineal descent does not correlate with typical symptoms of ODS. Specificity of TPUS and EVUS is comparable to EP and MRI, hence ultrasound could be used for the initial assessment of pelvic floor dysfunction. Full article
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9 pages, 1072 KB  
Article
Clinical Evidence Regarding Spermidine–Hyaluronate Gel as a Novel Therapeutic Strategy in Vestibulodynia Management
by Filippo Murina, Alessandra Graziottin, Nicla Toni, Maria Teresa Schettino, Luca Bello, Alessandra Marchi, Barbara Del Bravo, Dania Gambini, Lara Tiranini and Rossella Elena Nappi
Pharmaceutics 2024, 16(11), 1448; https://doi.org/10.3390/pharmaceutics16111448 - 12 Nov 2024
Cited by 1 | Viewed by 2607
Abstract
Background: Vestibulodynia (VBD) represents a summation and overlapping of trigger factors (infections, hormonal disturbances, allergies, genetic aspects, psychological vulnerability, and others) with broad individual variability. As there are no standard treatment options for VBD, the disease is still in need of appropriate therapeutic [...] Read more.
Background: Vestibulodynia (VBD) represents a summation and overlapping of trigger factors (infections, hormonal disturbances, allergies, genetic aspects, psychological vulnerability, and others) with broad individual variability. As there are no standard treatment options for VBD, the disease is still in need of appropriate therapeutic tools. Objectives: A prospective observational trial was performed to confirm the efficacy of a topical gel containing a spermidine–hyaluronate complex (UBIGEL donna™) as either a stand-alone or companion treatment through a multicenter study on a large sample population. Methods: For women with VBD (n = 154), the treatment consisted of approximately two months (4 + 4 weeks) of applications according to the posology of UBIGEL. Evaluation of symptoms was performed on relevant clinical endpoints: dyspareunia and vulvovaginal pain/burning by a visual scale (VAS); vestibular trophism by a vestibular trophic health (VeTH) score; vulvoscopy through a cotton swab test; and the level of hypertonic pelvic floor by a physical graded assessment of levator ani hypertonus. Results: A total of 154 patients treated with UBIGEL donna™ showed significant improvements across all five evaluated parameters, including pain, dyspareunia, swab test results, muscle hypertonicity, and vestibular trophism. Pain and dyspareunia scores decreased by 46.5% and 33.5%, respectively, while significant improvements were also observed in the other parameters (p < 0.0001). These improvements were consistent across various stratifications, including age and disease duration. Conclusions: The findings of the present study suggest that UBIGEL donna™ is effective in alleviating pain and dyspareunia, as well as reducing vestibular hypersensitivity in women with VBD. Although UBIGEL donna™ alone cannot serve as a comprehensive substitute for all recommended therapies, we suggest that multimodal therapy strategies may be crucial for attaining substantial improvement in any aspect of the condition. Full article
(This article belongs to the Special Issue Novel Therapeutic Approach to Inflammation and Pain)
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10 pages, 845 KB  
Review
Effectiveness of Pelvic Floor Muscle Training for Treating Faecal Incontinence
by Yohei Okawa
Gastrointest. Disord. 2024, 6(3), 774-783; https://doi.org/10.3390/gidisord6030053 - 27 Aug 2024
Cited by 1 | Viewed by 8602
Abstract
The purpose of this study is to examine the effect of pelvic floor muscle training on faecal incontinence. Faecal incontinence is a condition in which stool leaks from the anus involuntarily or uncontrollably. Faecal incontinence is common in elderly people and patients with [...] Read more.
The purpose of this study is to examine the effect of pelvic floor muscle training on faecal incontinence. Faecal incontinence is a condition in which stool leaks from the anus involuntarily or uncontrollably. Faecal incontinence is common in elderly people and patients with underlying diseases, but the pathophysiology of faecal incontinence is diverse, and treatment methods must be varied accordingly. Among the known treatment methods, in this study, we focused on pelvic floor muscle training, which can be performed in daily life. The literature was searched for papers that present existing knowledge and address current perspectives. Extracted studies included papers that report scientific consensus. After reviewing the literature, it appears that it is possible to effectively train patients to defecate twice a day, approximately 30 min after breakfast and dinner, by having them attempting to defecate, even when there is no such urge. Pelvic floor muscle training can improve urinary and faecal incontinence by strengthening the contractile force of the pelvic floor muscles such as the external anal sphincter and levator ani. However, the specific types of faecal incontinence patients that can effectively benefit from pelvic floor muscle training is unclear. It is important for patients to understand the pelvic floor muscle training program and to develop sufficient motivation to continue training at home. Full article
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17 pages, 4066 KB  
Article
Quantitative 3D Analysis of Levator Ani Muscle Subdivisions in Nulliparous Women: MRI Feasibility Study
by Nathalie Moser, Stephan Skawran, Klaus Steigmiller, Barbara Röhrnbauer, Thomas Winklehner, Cäcilia S. Reiner and Cornelia Betschart
Diagnostics 2024, 14(9), 923; https://doi.org/10.3390/diagnostics14090923 - 29 Apr 2024
Cited by 1 | Viewed by 1957
Abstract
Background: The levator ani muscle (LAM) is crucial for pelvic floor stability, yet its quantitative MRI assessment is only a recent focus. Our study aims to standardize the quantitative analysis of the LAM morphology within the 3D Pelvic Inclination Correction System (3D-PICS). Methods: [...] Read more.
Background: The levator ani muscle (LAM) is crucial for pelvic floor stability, yet its quantitative MRI assessment is only a recent focus. Our study aims to standardize the quantitative analysis of the LAM morphology within the 3D Pelvic Inclination Correction System (3D-PICS). Methods: We analyzed 35 static MR datasets from nulliparous women examining the pubovisceral (PVM), iliococcygeal (ICM), coccygeal (COC), and puborectal muscle (PRM). The PVM consists of three origin-insertion pairs, namely the puboanal (PAM), puboperineal (PPM) and pubovaginal muscle (PVaM). The analysis included a quantitative examination of the morphology of LAM, focusing on the median location (x/y/z) (x: anterior–posterior, y: superior–inferior, z: left–right) of the origin and insertion points (a), angles (b) and lengths (c) of LAM. Inter-rater reliability was calculated. Results: Interindividual variations in 3D coordinates among muscle subdivisions were shown. In all, 93% of all origin and insertion points were found within an SD of <8 mm. Angles to the xz-plane range between −15.4° (right PRM) and 40.7° (left PAM). The PRM is the largest pelvic muscle in static MRI. The ICC indicated moderate-to-good agreement between raters. Conclusions: The accurate morphometry of the LAM and its subdivisions, along with reliable inter-rater agreement, was demonstrated, enhancing the understanding of normal pelvic anatomy in young nulliparous women. Full article
(This article belongs to the Special Issue Diagnostic Imaging of the Female Pelvis)
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11 pages, 1470 KB  
Article
Changes in Pelvic Floor Ultrasonographic Features after Flat Magnetic Stimulation in Women with Chronic Pelvic Pain and Levator Ani Muscle Hypertonicity
by Marta Barba, Alice Cola, Desirèe De Vicari, Clarissa Costa, Giorgio La Greca, Annalisa Vigna, Silvia Volontè, Matteo Frigerio, Stefano Terzoni and Serena Maruccia
Medicina 2024, 60(3), 374; https://doi.org/10.3390/medicina60030374 - 23 Feb 2024
Cited by 1 | Viewed by 3093
Abstract
Background and Objectives: Chronic pelvic pain (CPP) represents a major public health problem for women with a significant impact on their quality of life. In many cases of CPP, due to gynecological causes—such as endometriosis and vulvodynia—improper pelvic floor muscle relaxation can be [...] Read more.
Background and Objectives: Chronic pelvic pain (CPP) represents a major public health problem for women with a significant impact on their quality of life. In many cases of CPP, due to gynecological causes—such as endometriosis and vulvodynia—improper pelvic floor muscle relaxation can be identified. Treatment of CPP with pelvic floor hypertonicity (PFH) usually involves a multimodal approach. Traditional magnetic stimulation has been proposed as medical technology to manage muscle hypertonicity and pelvic pain conditions through nerve stimulation, neuromodulation, and muscle relaxation. New Flat Magnetic Stimulation (FMS)—which involves homogeneous rather than curved electromagnetic fields—has the potential to induce sacral S2–S4 roots neuromodulation, muscle decontraction, and blood circulation improvement. However, the benefits of this new technology on chronic pelvic pain symptoms and biometrical muscular parameters are poorly known. In this study, we want to evaluate the modification of the sonographic aspect of the levator ani muscle before and after treatment with Flat Magnetic Stimulation in women with chronic pelvic pain and levator ani hypertonicity, along with symptoms evolution. Materials and Methods: A prospective observational study was carried out in a tertiary-level Urogynaecology department and included women with CPP and PFH. Approval from the local Ethics Committee was obtained before the start of the study (protocol code: MAGCHAIR). At the baseline, the intensity of pelvic pain was measured using a 10 cm visual analog scale (VAS), and patients were asked to evaluate their pelvic floor symptoms severity by answering the question, “How much do your pelvic floor symptoms bother you?” on a 5-answer Likert scale. Transperineal ultrasound (TPU) was performed to assess anorectal angle (ARA) and levator ani muscle minimal plane distance (LAMD). Treatment involved Flat Magnetic Stimulation alone or with concomitant local or systemic pharmacological therapy, depending on the patient’s preferences. FMS was delivered with the DR ARNOLD system (DEKA M.E.L.A. Calenzano, Italy). After the treatment, patients were asked again to score the intensity of pelvic pain using the 10 cm visual analog scale (VAS) and to evaluate the severity of their pelvic floor symptoms on the 5-answer Likert scale. Patients underwent TPU to assess anorectal angle (ARA) and levator ani muscle minimal plane distance (LAMD). Results: In total, 11 patients completed baseline evaluation, treatment, and postoperative evaluation in the period of interest. All patients underwent eight sessions of Flat Magnetic Stimulation according to the protocol. Adjuvant pharmacological treatment was used in five (45.5%) patients. Specifically, we observed a significant increase in both ARA and LAMD comparing baseline and post-treatment measurements (p < 0.001). Quality of life scale scores at baseline and after treatment demonstrated a significant improvement in both tools (p < 0.0001). Conclusions: Flat Magnetic Stimulation, with or without adjuvant pharmacological treatment, demonstrated safety and efficacy in reducing pelvic floor hypertonicity, resulting in improvement in symptoms’ severity and sonographic parameters of muscular spasm. Full article
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11 pages, 1288 KB  
Article
The Correlation between Transperineal Shear-Wave Elastography and Transabdominal Ultrasound When Assessing Pelvic Floor Function in Nulliparous Women
by Yerim Do, Youngeun Lim, Soohyun Lee and Haneul Lee
Diagnostics 2023, 13(18), 3002; https://doi.org/10.3390/diagnostics13183002 - 20 Sep 2023
Cited by 5 | Viewed by 2446
Abstract
Pelvic floor muscles (PFMs) play a crucial role in maintaining pelvic organ support and continence. However, pelvic floor dysfunction (PFD), often resulting from insufficient PFM control, poses a substantial global health challenge for women. This study aims to explore the relationship between levator [...] Read more.
Pelvic floor muscles (PFMs) play a crucial role in maintaining pelvic organ support and continence. However, pelvic floor dysfunction (PFD), often resulting from insufficient PFM control, poses a substantial global health challenge for women. This study aims to explore the relationship between levator ani muscle elasticity when assessed through transperineal shear-wave elastography (SWE) and bladder base displacement, quantified using transabdominal ultrasonography (TAUS), as a means to comprehensively evaluate PFM function. A total of 42 nulliparous women participated in this study. Participants received instructions on proper PFM contractions using Kegel exercises. Levator ani muscle elasticity was assessed both at rest and during contractions using transperineal SWE, while bladder base displacement was simultaneously measured through TAUS. Repeated measures demonstrated strong intraclass correlation coefficients of 0.906 at rest and 0.687 during contractions for levator ani muscle elasticity. The mean elasticity values were 24.7 ± 4.5 kPa at rest and 62.1 ± 10.4 kPa during contractions. Additionally, the mean bladder base displacement was 7.2 ± 2.5 mm, and the normalized bladder base displacement via body mass index was 0.3 ± 0.1 mm. Significantly, a moderate correlation was identified between the PFM function, represented by the difference in levator ani elasticity during contractions and resting, and bladder base displacement (r = 0.486, p = 0.001). These findings underscore the potential utility of transperineal SWE as a reliable and noninvasive method to assess levator ani muscle elasticity and, consequently, PFM function. In conclusion, this study sheds light on the interplay between PFM elasticity and bladder base displacement, offering insights into PFM function assessments. The observed correlation suggests the clinical relevance of SWE in providing valuable information for treatment planning in PFD. These findings contribute to a deeper understanding of PFM dynamics, ultimately aiding in the effective management of PFD among women. Full article
(This article belongs to the Special Issue Advances in Ultrasound Imaging for Musculoskeletal Diseases)
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14 pages, 2189 KB  
Article
MRI-Based Radiomics Analysis of Levator Ani Muscle for Predicting Urine Incontinence after Robot-Assisted Radical Prostatectomy
by Mohammed Shahait, Ruben Usamentiaga, Yubing Tong, Alex Sandberg, David I. Lee, Jayaram K. Udupa and Drew A. Torigian
Diagnostics 2023, 13(18), 2913; https://doi.org/10.3390/diagnostics13182913 - 11 Sep 2023
Cited by 3 | Viewed by 2084
Abstract
Background: The exact role of the levator ani (LA) muscle in male continence remains unclear, and so this study aims to shed light on the topic by characterizing MRI-derived radiomic features of LA muscle and their association with postoperative incontinence in men undergoing [...] Read more.
Background: The exact role of the levator ani (LA) muscle in male continence remains unclear, and so this study aims to shed light on the topic by characterizing MRI-derived radiomic features of LA muscle and their association with postoperative incontinence in men undergoing prostatectomy. Method: In this retrospective study, 140 patients who underwent robot-assisted radical prostatectomy (RARP) for prostate cancer using preoperative MRI were identified. A biomarker discovery approach based on the optimal biomarker (OBM) method was used to extract features from MRI images, including morphological, intensity-based, and texture-based features of the LA muscle, along with clinical variables. Mathematical models were created using subsets of features and were evaluated based on their ability to predict continence outcomes. Results: Univariate analysis showed that the best discriminators between continent and incontinent patients were patients age and features related to LA muscle texture. The proposed feature selection approach found that the best classifier used six features: age, LA muscle texture properties, and the ratio between LA size descriptors. This configuration produced a classification accuracy of 0.84 with a sensitivity of 0.90, specificity of 0.75, and an area under the ROC curve of 0.89. Conclusion: This study found that certain patient factors, such as increased age and specific texture properties of the LA muscle, can increase the odds of incontinence after RARP. The results showed that the proposed approach was highly effective and could distinguish and predict continents from incontinent patients with high accuracy. Full article
(This article belongs to the Special Issue Deep Learning in Medical Image Segmentation and Diagnosis)
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11 pages, 928 KB  
Article
Moving from Laparoscopic Synthetic Mesh to Robotic Biological Mesh for Ventral Rectopexy: Results from a Case Series
by Farouk Drissi, Fabien Rogier-Mouzelas, Sebastian Fernandez Arias, Juliette Podevin and Guillaume Meurette
J. Clin. Med. 2023, 12(17), 5751; https://doi.org/10.3390/jcm12175751 - 4 Sep 2023
Cited by 8 | Viewed by 3056
Abstract
Introduction: Laparoscopic ventral mesh rectopexy (VMR) is the standard procedure for the treatment of posterior pelvic organ prolapse. Despite significant functional improvement and anatomical corrections, severe complications related to mesh augmentation can occur in a few proportions of patients. In order to decrease [...] Read more.
Introduction: Laparoscopic ventral mesh rectopexy (VMR) is the standard procedure for the treatment of posterior pelvic organ prolapse. Despite significant functional improvement and anatomical corrections, severe complications related to mesh augmentation can occur in a few proportions of patients. In order to decrease the number of rare but severe complications, we developed a variant of the conventional VMR without any rectal fixation and using a robotic approach with biological mesh. The aim of this study was to compare the results of laparoscopic ventral rectopexy with synthetic mesh (LVMRS) to those of robotic ventral rectopexy with biological mesh (RVMRB). Methods: Between 2004 and 2021, patients operated on for VMR in our unit were identified and separated into two groups: LVMRS and RVMRB. The surgical technique for both groups consisted of VMR without any rectal fixation, with mesh distally secured on the levator ani muscles. Results: 269 patients with a mean age of 62 years were operated for posterior pelvic floor disorder: rectocele (61.7%) and external rectal prolapse (34.6%). 222 (82.5%) patients received LVMRS (2004–2015), whereas 47 were operated with RVMRB (2015–2021). Both groups slightly differed for combined anterior fixation proportion (LVMRS 39% vs. RVMRB 6.4%, p < 0.001). Despite these differences, the length of stay was shorter in the RVMRB group (2 vs. 3 days, p < 0.001). Postoperative complications were comparable in the two groups (1.8 vs. 4.3%, p = 0.089) and mainly consisted of minor complications. Functional outcomes were favorable and similar in both groups, with an improvement in bulging, obstructed defecation symptoms, and fecal incontinence (NS in subgroup analysis). In the long term, there were no mesh erosions reported. The overall recurrence rate was 11.9%, and was comparable in the two groups (13% LVMRS vs. 8.5, p = 0.43). Conclusions: VMR without rectal fixation is a safe and effective approach in posterior organ prolapse management. RVMRB provides comparable results in terms of recurrence and functional results, with avoidance of unabsorbable material implantation. Full article
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14 pages, 3729 KB  
Article
Automated Segmentation of Levator Ani Muscle from 3D Endovaginal Ultrasound Images
by Nada Rabbat, Amad Qureshi, Ko-Tsung Hsu, Zara Asif, Parag Chitnis, Seyed Abbas Shobeiri and Qi Wei
Bioengineering 2023, 10(8), 894; https://doi.org/10.3390/bioengineering10080894 - 28 Jul 2023
Cited by 8 | Viewed by 2802
Abstract
Levator ani muscle (LAM) avulsion is a common complication of vaginal childbirth and is linked to several pelvic floor disorders. Diagnosing and treating these conditions require imaging of the pelvic floor and examination of the obtained images, which is a time-consuming process subjected [...] Read more.
Levator ani muscle (LAM) avulsion is a common complication of vaginal childbirth and is linked to several pelvic floor disorders. Diagnosing and treating these conditions require imaging of the pelvic floor and examination of the obtained images, which is a time-consuming process subjected to operator variability. In our study, we proposed using deep learning (DL) to automate the segmentation of the LAM from 3D endovaginal ultrasound images (EVUS) to improve diagnostic accuracy and efficiency. Over one thousand images extracted from the 3D EVUS data of healthy subjects and patients with pelvic floor disorders were utilized for the automated LAM segmentation. A U-Net model was implemented, with Intersection over Union (IoU) and Dice metrics being used for model performance evaluation. The model achieved a mean Dice score of 0.86, demonstrating a better performance than existing works. The mean IoU was 0.76, indicative of a high degree of overlap between the automated and manual segmentation of the LAM. Three other models including Attention UNet, FD-UNet and Dense-UNet were also applied on the same images which showed comparable results. Our study demonstrated the feasibility and accuracy of using DL segmentation with U-Net architecture to automate LAM segmentation to reduce the time and resources required for manual segmentation of 3D EVUS images. The proposed method could become an important component in AI-based diagnostic tools, particularly in low socioeconomic regions where access to healthcare resources is limited. By improving the management of pelvic floor disorders, our approach may contribute to better patient outcomes in these underserved areas. Full article
(This article belongs to the Special Issue Artificial Intelligence in Advanced Medical Imaging)
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12 pages, 2768 KB  
Article
3D Ultrasound in Pelvic Floor: Is It Useful as a Prognostic Tool in Type of Labor Development and Subsequent Pelvic Floor Diseases?
by Juan A. Barca, Coral Bravo, Santiago García Tizón, Rocío Aracil-Rodriguez, Juan Manuel Pina-Moreno, Ignacio Cueto-Hernández, Maria P. Pintado-Recarte, Melchor Alvarez-Mon, Miguel A. Ortega and Juan A. De León-Luis
Int. J. Environ. Res. Public Health 2022, 19(18), 11479; https://doi.org/10.3390/ijerph191811479 - 13 Sep 2022
Cited by 3 | Viewed by 4063
Abstract
The objective of our study is to determine the thickness of the pubovisceral fasciculus of the levator ani muscle and the area of the genital hiatus by means of three-dimensional perineal ultrasound, in pregnant women in the 2nd trimester, and to analyze the [...] Read more.
The objective of our study is to determine the thickness of the pubovisceral fasciculus of the levator ani muscle and the area of the genital hiatus by means of three-dimensional perineal ultrasound, in pregnant women in the 2nd trimester, and to analyze the related maternal, perinatal and postpartum clinical variables. Furthermore, to compare the results of our study with two similar series previously published. An observational, prospective study of pelvic floor ultrasound was carried out, performed at week 20, whose delivery was attended in the obstetrics service of the Hospital General Universitario Gregorio Marañón de Madrid (HGUGM), during the period of August from 2021 to June 2022. Maternal, ultrasound, perinatal and postpartum clinical variables were collected from each participant. During the study period, a total of 54 patients were included in it. The mean gestational age at which the ultrasound was performed was 19.81 ± 0.91 weeks. In relation to the ultrasound variables, the mean thickness of the pubovisceral muscle was 0.87 ± 0.13 cm (95% CI, 0.64–1.38 cm), while, in the plane of minimum dimension of the genital hiatus, the hiatal area at rest was 13.41 ± 3.22 (95% CI, 4.60–18.78) cm2. There is a significant correlation between the age of pregnant women (over 35 years of age) and the increase in the area of the genital hiatus (r = 0.295, p = 0.031). 3D ultrasound of the pelvic floor performed at week 20 of gestation can to be an effective, non-invasive, reproducible and cheap tool in the prognosis of the development of labor and of possible subsequent perineal dysfunctions. Full article
(This article belongs to the Special Issue State of Health and Quality of Life of Women)
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8 pages, 813 KB  
Article
Never Too Late to Train: The Effects of Pelvic Floor Muscle Training on the Shape of the Levator Hiatus in Incontinent Older Women
by Licia P. Cacciari, Mélanie Morin, Marie-Hélène Mayrand and Chantale Dumoulin
Int. J. Environ. Res. Public Health 2022, 19(17), 11078; https://doi.org/10.3390/ijerph191711078 - 4 Sep 2022
Cited by 7 | Viewed by 3101
Abstract
Pelvic floor muscle (PFM) training is the first-line treatment for women of all ages with urinary incontinence (UI), but evidence supporting its effects on the functional anatomy of the pelvic floor is scarce in older women. We aimed to evaluate the long-term (one-year) [...] Read more.
Pelvic floor muscle (PFM) training is the first-line treatment for women of all ages with urinary incontinence (UI), but evidence supporting its effects on the functional anatomy of the pelvic floor is scarce in older women. We aimed to evaluate the long-term (one-year) effects of PFM training on the shape of the levator hiatus (LH) in older women with UI and its association with PFM force, incontinence severity, and potential effect modifiers (age, UI severity, BMI, and UI type). This is a secondary analysis of the GROUP study, a non-inferiority RCT assessing the effects of a structured and progressive 12-week PFM training program to treat UI in older women. Data were available from 264/308 participants at the one-year follow-up. PFM training resulted in reduced LH size toward a more “circular” shape, which was consistently associated with greater PFM force and reduced UI severity. Further, no significant interactions were found between LH shape changes and any of the potential effect modifiers, suggesting that women will potentially benefit from PFM training, regardless of age, UI severity, BMI, and UI type (stress or mixed), with changes that can be observed in the functional anatomy of the pelvic floor and sustained in the long-term. Full article
(This article belongs to the Special Issue Second Edition of Pelvic Health and Human Movement)
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9 pages, 1073 KB  
Article
Ultrasonography Comparison of Pelvic Floor and Abdominal Wall Muscles in Women with and without Dyspareunia: A Cross-Sectional Study
by Elena Castellanos-López, Camila Castillo-Merino, Vanesa Abuín-Porras, Daniel López-López and Carlos Romero-Morales
Diagnostics 2022, 12(8), 1827; https://doi.org/10.3390/diagnostics12081827 - 29 Jul 2022
Cited by 4 | Viewed by 2706
Abstract
Pelvic floor hypertonicity and narrowing of the levator ani hiatus is traditionally assumed in women with dyspareunia and considered a therapeutical target by physical therapists. However, accurate pre-treatment assessment of pelvic floor muscles is difficult to perform in clinical sites. In addition, the [...] Read more.
Pelvic floor hypertonicity and narrowing of the levator ani hiatus is traditionally assumed in women with dyspareunia and considered a therapeutical target by physical therapists. However, accurate pre-treatment assessment of pelvic floor muscles is difficult to perform in clinical sites. In addition, the abdominal musculature has not been evaluated in this population, despite its relationship with pelvic floor disfunctions. The purpose of this study was to determine the existence of differences in the length of the anteroposterior diameter of the levator ani hiatus (APDH), the thickness of the abdominal wall musculature and the interrecti distance (IRD) in subjects with dyspareunia compared to a control group. A cross-sectional observational study was designed using ultrasound imaging to measure the APH, the thickness of the abdominal musculature—rectus abdominis (RA), transverse abdominis (TrAb), internal oblique (IO), external oblique (EO)—and IRD at rest and during contraction. Thirty-two women were recruited through advertising and social webs and divided into two groups: dyspareunia (n = 16) and no dyspareunia (n = 16). There were no statistically significant differences (p < 0.05) in RA, TrAb, OI and OE muscle thickness. No differences in APH or in supraumbilical and infraumbilical IRD were found. The findings of this study suggest that the relationship between the abdominal structure/levator ani hypertonia and dyspareunia remains uncertain. Full article
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