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  1. Lo TS, Nawawi EA, Wu PY, bt Karim N, Al-Kharabsheh A
    Int Urogynecol J, 2016 Mar;27(3):399-406.
    PMID: 26373869 DOI: 10.1007/s00192-015-2837-z
    INTRODUCTION AND HYPOTHESIS: The objective of this study was to identify the predictors for persistent urodynamic stress incontinence (P-USI) in women following extensive pelvic reconstructive surgery (PRS) with and without midurethral sling (MUS).

    MMETHODS: A total of 1,017 women who underwent pelvic organ prolapse (POP) surgery from January 2005 to December 2013 in our institutions were analyzed. We included 349 USI women who had extensive PRS for POP stage III or more of whom 209 underwent concomitant MUS.

    RESULTS: Of the women who underwent extensive PRS without MUS, 64.3 % (90/140) developed P-USI compared to only 10.5 % (22/209) of those who had concomitant MUS. Those with concomitant MUS and PRS alone were at higher risk of developing P-USI if they had overt USI [odds ratio (OR) 2.2, 95 % confidence interval (CI) 1.3-4.0, p = 0.014 and OR 4.7, 95 % CI 2.0-11.3, p 

    Matched MeSH terms: Pelvic Organ Prolapse/surgery
  2. Lo TS, Tan YL, Cortes EF, Lin YH, Wu PY, Pue LB
    Aust N Z J Obstet Gynaecol, 2015 Dec;55(6):593-600.
    PMID: 26299981 DOI: 10.1111/ajo.12397
    To clinically and sonographically evaluate the influence of anterior vaginal mesh (AVM) surgery with concomitant mid-urethral sling surgery (MUS) for stress urinary incontinence (SUI).
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  3. Lo TS, Cortes EFM, Wu PY, Tan YL, Al-Kharabsheh A, Pue LB
    Eur J Obstet Gynecol Reprod Biol, 2016 Mar;198:138-144.
    PMID: 26849040 DOI: 10.1016/j.ejogrb.2016.01.004
    OBJECTIVE: To evaluate the sonologic and clinical outcome of collagen coated (CC) versus non-collagen coated (NC) anterior vaginal mesh (AVM) for pelvic organ prolapse (POP) surgery.

    STUDY DESIGN: The study is a prospective observational study which included 122 patients who had symptomatic POP stage III and IV. AvaultaPlus™ (collagen coated, CC group) was compared to Perigee™ (non collagen coated, NC group). Introital ultrasound morphology, measure of neovascularization by color Doppler and clinical outcomes were assessed. Student t test was used for comparison of pre- and post-operation continuous data (p value of <0.05).

    RESULTS: A total of 110 (CC group=50, NC group=60) women completed the study. A woman in the CC group developed ureteral injury. Both groups had comparable morphologic and clinical outcomes however, the onset of changes in mesh thickness and neovascularization occurred earlier in the NC group (1 month) compared to the CC group (6 months to 1 year).

    CONCLUSION: CC group was comparable to the NC group in terms of erosion rate, ultrasound and clinical assessment. Collagen coating may induce delayed inflammatory response however may also delay tissue integration. The onset of changes in mesh thickness and neovascularization may give us an insight toward utilization of collagen coated mesh for host-tissue integration.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  4. Lo TS, Tan YL, Cortes EF, Wu PY, Pue LB, Al-Kharabsheh A
    Aust N Z J Obstet Gynaecol, 2015 Jun;55(3):284-90.
    PMID: 26044791 DOI: 10.1111/ajo.12340
    The Food and Drug Administration has recently highlighted an increase in reported complications associated with the use of transvaginal mesh.
    Matched MeSH terms: Pelvic Organ Prolapse/surgery
  5. Lo TS, Shailaja N, Hsieh WC, Uy-Patrimonio MC, Yusoff FM, Ibrahim R
    Int Urogynecol J, 2017 Apr;28(4):575-582.
    PMID: 27647467 DOI: 10.1007/s00192-016-3144-z
    INTRODUCTION AND HYPOTHESIS: The objective of this study was to identify the predictors of postoperative voiding dysfunction in women following extensive vaginal pelvic reconstructive surgery.

    METHODS: We enrolled 1,425 women who had pelvic organ prolapse of POP-Q stage III or IV and had undergone vaginal pelvic reconstructive surgery with or without transvaginal mesh insertion from January 2006 to December 2014. All subjects were required to complete a 72-h voiding diary, and the IIQ-7, UDI-6, POPDI-6 and PISQ-12 questionnaires. Urodynamic study was performed preoperatively and postoperatively.

    RESULTS: Of the 1,425 women, 54 were excluded due to incomplete data, and 1,017 of the remaining 1,371 (74.2 %) had transvaginal mesh surgery and 247 (18 %) had concurrent midurethral sling insertion. Of 380 women (27.7 %) with preoperative voiding dysfunction, 37 (9.7 %) continued to have voiding dysfunction postoperatively. Of the remaining 991 women (72.3 %) with normal preoperative voiding function, 11 (1.1 %) developed de novo voiding dysfunction postoperatively. The overall incidence of postoperative voiding dysfunction was 3.5 % (48/1,371). Those with concurrent midurethral sling insertion were at higher risk of developing voiding dysfunction postoperatively (OR 3.12, 95 % CI 1.79 - 5.46, p pelvic organ prolapse were risk factors for the development of postoperative voiding dysfunction after vaginal pelvic reconstructive surgery. Therefore, counseling is worthwhile before considering vaginal pelvic reconstructive surgery.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  6. Lo TS, Jaili S, Uy-Patrimonio MC, Karim NB, Ibrahim R
    J Obstet Gynaecol Res, 2017 Mar;43(3):543-550.
    PMID: 28160508 DOI: 10.1111/jog.13234
    AIM: The aim of this study was to evaluate the management outcomes of advanced pelvic organ prolapse (POP) in nulliparous women.

    METHODS: Eight nulliparous women diagnosed with POP ≥ stage 3 between January 2005 and August 2013, according to the Pelvic Organ Quantification System (POPQ), were reviewed. Seven were managed surgically and one was managed with pessary. Primary outcome was surgical objective cure (POP-Q ≤ 1) and subjective cure, defined as negative response to questions 2 and 3 on Pelvic Organ Prolapse Distress Inventory 6. Secondary outcomes were complications, symptoms' severity and quality of life according to validated questionnaires.

    RESULTS: A total of 1275 prolapse patients with POP-Q ≥ stage 3 were managed surgically, among whom seven (0.55%) were nulliparous. Each woman had at least one risk factor associated with POP. Risk factors identified were history of pelvic trauma, obesity, menopause, chronic cough, hard physical labor and constipation. Five patients underwent surgical correction (vaginal hysterectomy with sacrospinous fixation) with mesh (Perigee, n = 3; Avaulta, n = 2). Two patients had uterine preservation without mesh (hysteropexy with sacrospinous ligament fixation). One patient preferred treatment with pessary. The total cure rate (objective and subjective cure rates) was 86% after surgical reconstructive surgery.

    CONCLUSION: Management of nulliparous advanced POP poses significant challenges with regard to uterine preservation, future pregnancy and childbirth. Conservative management with pessary insertion should be offered followed by surgical correction. Reconstructive surgery with mesh may improve prolapse symptoms objectively and subjectively.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  7. Abdullah B, Nomura J, Moriyama S, Huang T, Tokiwa S, Togo M
    Int Urogynecol J, 2017 Oct;28(10):1543-1549.
    PMID: 28283710 DOI: 10.1007/s00192-017-3306-7
    INTRODUCTION AND HYPOTHESIS: We hypothesized that patient-reported urinary symptoms and urodynamic evaluation improve after laparoscopic sacrocolpopexy (LSC) despite deeper vesicovaginal space dissection.

    METHODS: This was a retrospective study of women with pelvic organ prolapse who underwent LSC from January 2013 to January 2016 in a tertiary center. Urinary function was clinically evaluated using the International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF), the Overactive Bladder Symptom Score (OABSS) and the Pelvic Floor Distress Inventory Questionnaire- - Short Form 20 (PFDI-20). Urodynamic assessment was performed before and 6 months after surgery. The Wilcoxon signed-ranks test and the McNemar test were applied with p pelvic organ prolapse, restoring both level 1 and level 2 support without detrimental effects on urinary function.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery
  8. Lo TS, Ibrahim R, Karim NB, Nawawi EA, Uy-Patrimonio MC
    Taiwan J Obstet Gynecol, 2018 Apr;57(2):311-314.
    PMID: 29673679 DOI: 10.1016/j.tjog.2018.02.023
    OBJECTIVE: To evaluate the outcome of transvaginal mesh surgery as a management of recurrent pelvic organ prolapse, in patients previously treated with sacrocolpopexy.

    CASE REPORT: A series of three patients who developed recurrent pelvic organ prolapse more than 9 years after sacrocolpopexy. A 50-year-old and two 77-year-old patients who presented with recurrent pelvic organ prolapse at 9, 15 and 17 years, respectively after the primary abdominal sacrocolpopexy were managed by transvaginal mesh surgery.

    CONCLUSION: Management of recurrent pelvic organ prolapse using transvaginal mesh would be an option for patients treated previously by sacrocolpopexy.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  9. Lo TS, Pue LB, Tan YL, Hsieh WC, Kao CC, Uy-Patrimonio MC
    Int Urogynecol J, 2019 07;30(7):1163-1172.
    PMID: 30008078 DOI: 10.1007/s00192-018-3691-6
    INTRODUCTION AND HYPOTHESIS: Our primary objective is to determine the presence of SUI at 6-12 months after surgery. The secondary objective is to determine the objective and subjective outcomes of POP.

    METHODS: A retrospective study conducted between February 2015 and July 2016 at Chang Gung Memorial Hospital. The subjects had had symptomatic anterior or apical prolapse with stage III or IV and undergone pelvic reconstructive surgery using Uphold™ LITE. Patients completed a 3-day voiding diary, urodynamic study, real-time ultrasonography and validated quality-of-life questionnaires at baseline and 12-month follow-up. Primary outcome was the absence of USI. Secondary outcomes included the objective cure rate of POP, ≤ stage 1 at the anterior/apical vaginal wall, and the subjective cure rate, negative feedback to POPDI-6.

    RESULTS: Ninety-five women were eligible. Six were excluded because of incomplete data. The postoperative de novo USI and SUI were 22.7 and 19.7%, respectively. There was significant improvement of USI in patients who had MUS insertion (93.8%) and bladder outlet obstruction (96.7%). The objective and subjective cure rate for prolapse was 95.5 and 94.3%, respectively. POP-Q measurements pre- and postoperatively were significantly improved at all points except for Gh and Pb. There was a significant difference in the distance between the bladder neck to the distal end of the mesh during straining both at both the postoperative 3rd month and 1 year.

    CONCLUSIONS: Uphold™ mesh has a 20% incidence of de novo USI with acceptable objective and subjective cure rates at 1 year postoperatively. The de novo USI rate was high but not bothersome enough to require surgery.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  10. Lo TS, Yusoff FM, Kao CC, Jaili S, Uy Patrimonio MC
    Taiwan J Obstet Gynecol, 2017 Jun;56(3):346-352.
    PMID: 28600046 DOI: 10.1016/j.tjog.2017.04.015
    OBJECTIVE: Transvaginal mesh anterior-posterior (TVM-AP) provides better cure rates in the surgical treatment of vaginal cuff eversion than anterior transvaginal mesh combined with sacrospinous ligament fixation (TVM-A). We determine the outcomes after TVM-A and TVM-AP surgeries in advanced vaginal cuff prolapse.

    MATERIALS AND METHODS: The charts of 796 women who underwent pelvic organ prolapse (POP) surgery from July 2006 to January 2012 in Chang Gung Memorial Hospitals were reviewed. We included women who presented with advanced cuff eversion and treated with TVM surgery. Data were analysed after three years post-surgery. Descriptive statistics were used for demographic and perioperative data. The paired-samples t test was used for comparison of preoperative and postoperative continuous data. The outcomes measured were objective cure (POP-Q stage ≤ 1) and subjective cure (negative response to question 2 and 3 on POPDI-6).

    RESULTS: A total of 97 patients was analysed. 61 patients had TVM-A and 36 patients had TVM-AP insertion. Mean follow-up was 52 months. The objective cure rate for TVM-AP was significantly higher than TVM-A, 94.4% versus 80.3%. TVM-AP also showed a higher subjective cure rate (91.7%) though there was no significant difference from TVM-A (p = 0.260). The mesh extrusion rate was low at 3.1% with no major complications seen. In TVM-A the blood loss was lesser and the operation time was shorter.

    CONCLUSION: TVM-AP showed better objective cure rate than TVM-A at 52 months. However, TVM-A is less invasive in comparison with an acceptably good cure rates.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  11. Vaiyapuri GR, Han HC, Lee LC, Tseng AL, Wong HF
    Singapore Med J, 2012 Oct;53(10):664-70.
    PMID: 23112018
    This retrospective study assessed the surgical outcomes of patients for whom the transobturator polypropylene mesh kit was used for the management of pelvic organ prolapse (Gynecare Prolift) in a tertiary urogynaecological centre in Singapore from January 1, 2006 to December 31, 2007.
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  12. Tan YL, Lo TS, Khanuengkitkong S, Krishna Dass A
    Taiwan J Obstet Gynecol, 2014 Sep;53(3):348-54.
    PMID: 25286789 DOI: 10.1016/j.tjog.2013.08.004
    The objective of this study was to estimate the association of vaginal sacrospinous ligament fixation with anterior-transobturator mesh repair surgery for advanced pelvic organ prolapse in patients of two different age groups.
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  13. Lo TS, Tan YL, Cortes EF, Pue LB, Wu PY, Al-Kharabsheh A
    J Minim Invasive Gynecol, 2015 Jan;22(1):50-6.
    PMID: 25017520 DOI: 10.1016/j.jmig.2014.07.002
    To study the surgical and functional outcomes of single-incision mesh surgery for treatment of advanced pelvic organ prolapse (POP).
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  14. Pue LB, Lo TS, Wu PY, Tan YL
    J Obstet Gynaecol Res, 2014 Feb;40(2):611-3.
    PMID: 24245849 DOI: 10.1111/jog.12174
    Abdominal sacrocolpopexy is a well-established procedure for the reconstruction of apical support in pelvic organ prolapse. Its long-term efficacy is well known; however, it is also associated with higher perioperative morbidity when compared with the less invasive transvaginal approach. Long-term risk of bowel-related complication from abdominal sacrocolpopexy is rare, but can be significant as it is often serious and requires major surgical intervention. Here we highlight an unusual case of strangulated small bowel (in this instance complicated with sepsis secondary to peritonitis), 14 years after an abdominal sacrocolpopexy procedure. This example amplifies the need for proper preoperative counseling; also, life-long follow-up is necessary for patients undergoing this procedure.
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  15. Lo TS, Tan YL, Khanuengkitkong S, Dass AK, Cortes EF, Wu PY
    J Minim Invasive Gynecol, 2014 Sep-Oct;21(5):753-61.
    PMID: 24607796 DOI: 10.1016/j.jmig.2014.02.013
    STUDY OBJECTIVE: To assess the morphologic features of anterior armed transobturator collagen-coated polypropylene mesh and its clinical outcomes in pelvic reconstructive surgery to treat pelvic organ prolapse.
    DESIGN: Evidence obtained from several timed series with intervention (Canadian Task Force classification II-3).
    SETTING: Chang Gung Memorial Hospital, Taoyuan, Taiwan, China.
    PATIENTS: Between April 2010 and October 2012, 70 patients underwent surgery to treat symptomatic pelvic organ prolapse, stage III/IV according to the POP-Q (Pelvic Organ Quantification System).
    INTERVENTION: Anterior armed transobturator collagen-coated mesh.
    MEASUREMENT AND MAIN RESULTS: Morphologic findings and clinical outcome were measured. Morphologic features were assessed via 2-dimensional introital ultrasonography and Doppler studies. Clinical outcome was measured via subjective and objective outcome. Objective outcome was assessed via the 9-point site-specific staging method of the International Continence Society Pelvic Organ Prolapse Quantification before the operation and at 1-year postoperative follow-up. Subjective outcome was based on 4 validated questionnaires: the 6-item UDI-6 (Urogenital Distress Inventory), the 7-item IIQ-7 (Incontinence Impact Questionnaire), the 6-item POPDI-6 (Pelvic Organ Prolapse Distress Inventory 6), and the 12-item PISQ-12 (Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire), at baseline and at 12 months after the operation. Data were obtained for 65 patients who underwent the combined surgery and were able to comply with follow-up for >1 year. Ultrasound studies reveal that mesh length tends to shorten and decrease in thickness over the 1-year follow-up. Vagina thickness also was reduced. Neovascularization through the mesh was observed in <8.5% of patients in the first month and at 1 year, and was evident in approximately 83%. The mesh exposure rate was 6.4%. The recorded objective cure was 90.8% (59 of 65 patients), and subjective cure was 89.2% (58 of 65 patients) at mean (SD) follow-up of 19.40 (10.98) months. At 2 years, UDI-6, IIQ-7, and POPDI-6 scores were all significantly decreased (p < .001), whereas the PISQ-12 score was significantly increased (p = .01).
    CONCLUSIONS: Ultrasound features suggest that the degeneration of collagen barrier may be longer than expected and that integration of collagen-coated mesh could occur up to 1 year. A substantially good clinical outcome was noted.
    KEYWORDS: Anterior vaginal mesh; Collagen-coated mesh; Morphology; Outcome; Pelvic organ prolapse
    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  16. Lo TS, Al-Kharabsheh AM, Tan YL, Pue LB, Hsieh WC, Uy-Patrimonio MC
    Taiwan J Obstet Gynecol, 2017 Dec;56(6):793-800.
    PMID: 29241922 DOI: 10.1016/j.tjog.2017.10.016
    OBJECTIVE: To compare the clinical efficacy, recurrence, complications and quality of life changes 3 years after Elevate-A/single incision mesh surgery anterior apical (SIM A) and sacrospinous ligament fixation (SSF) in the management of pelvic organ prolapse (POP).

    MATERIALS AND METHODS: A prospective cohort study, 139 women, underwent transvaginal surgery for anterior and/or apical POP > stage 2, 69 patients had SIM A and 70 patients had SSF. The objective cure was defined as POP ≤ stage 1 anterior, apical according to POP-Q. Subjective cure is patient's negative feedback to question 2 and 3 of pelvic organ prolapse distress inventory 6 (POPDI-6). Patient's satisfaction was reported using validated quality of life questionnaires. Multi-channel urodynamic study was used to report any voiding problems related to the prolapse surgery 6 months after surgery.

    RESULTS: 119 patients completed a minimum of 3 years follow-up. 89.8% is the overall prolapse correction success rate for SIM A and 73.3% for SSF group (p = 0.020), and 96.6% versus 73.4% at the anterior vaginal compartment respectively (p ≤ 0.001). Statistically significant difference was noticed in apical compartment with 98.3% with SIM A and 85.0% with SSF (p = 0.009). The subjective success rate, 86.4% in the SIM A and 70.0% in the SSF arm (p = 0.030) was significantly noted. Only, Pelvic Organ Prolapse Distress Inventory-6 (POPDI-6) showed significant improvement. Operation time and intra-operative blood loss tend to be more with SIM A.

    CONCLUSION: SIM A has better 3 years objective and subjective cure rate than SSF in the anterior and/or apical compartment prolapse.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery
  17. Lo TS, Lin YH, Chu HC, Cortes EF, Pue LB, Tan YL, et al.
    J Obstet Gynaecol Res, 2017 Jan;43(1):173-178.
    PMID: 27762470 DOI: 10.1111/jog.13158
    AIM: By investigating the association of urodynamics and urogenital nerve growth factor (NGF) levels in vaginal mesh surgery, we may be able to associate the likelihood of postoperative lower urinary tract symptoms developing as a result of synthetic mesh implanted for pelvic floor reconstructive surgery.

    METHODS: Thirty-eight female Sprague-Dawley rats were divided into three groups: mesh, sham (no mesh), and control. Urodynamic study and NGF analysis of the urogenital tissues were done and results were compared among all groups. The urodynamic studies of the mesh and sham groups were further divided into the 4th and 10th days. A P-value 

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
  18. Vaiyapuri GR, Han HC, Lee LC, Tseng LA, Wong HF
    Int Urogynecol J, 2011 Jul;22(7):869-77.
    PMID: 21479713 DOI: 10.1007/s00192-011-1400-9
    INTRODUCTION AND HYPOTHESIS: This retrospective study reports the 1-year outcome in women who underwent mesh-augmented Prolift surgery performed from 2006 to 2008. There were a total of 254 patients, with 128, 106 and 20 patients receiving total, anterior and posterior Prolift, respectively.

    METHODS: Incidence of thigh pain was lower in 2008 compared to 2006 and 2007 (p < 0.0001). The percentage of patients requiring blood transfusions (p = 0.09), duration of IDC ≥ 7 days (p = 0.27), wound dehiscence and re-operation rate were lower in 2008 in contrast to 2006 and 2007 (p = 0.43). Only 209 patients (82.3%) were available for review at 1 year. There were two (1.0%) cases of recurrent vault prolapse.

    RESULTS: The subjective and objective cure rates at 1 year after this mesh implant surgery in 2006, 2007 and 2008 were 92.1% and 92.1%; 97.0% and 92.4% and 100% and 97%, respectively. The mesh erosion rate was remarkably lower in 2008 as compared to 2007 and 2006 (p < 0.001).

    CONCLUSIONS: This synthetic mesh-augmented implant surgery is effective and safe, and surgical outcome appears related to the learning curve of the surgeon.

    Matched MeSH terms: Pelvic Organ Prolapse/surgery*
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