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González Enguita C, Garranzo García-Ibarrola M, Tufet I Jaumont JJ, Garde García H, González López R, Quintana Franco LM, Torres Zambrano GM, García-Arranz M. Cell Therapy in the Treatment of Female Stress Urinary Incontinence: Current Status and Future Proposals. Life (Basel) 2024; 14:861. [PMID: 39063615 PMCID: PMC11278173 DOI: 10.3390/life14070861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Stress urinary incontinence (SUI) is a common condition with a significant impact on the quality of life of female patients. The limitations of current treatment strategies have prompted the exploration of new effective and minimally invasive alternative approaches, including cell therapy. METHODS A literature search was conducted to update the current clinical status of stem cell therapy in the management of female stress urinary incontinence. RESULTS Over thirty clinical studies have been designed to assess the feasibility, safety and efficacy of cell therapy for female SUI. Despite differences in cell types and protocols, the overall treatment procedures were similar. Standard subjective and objective assessment tools, and follow-up periods ranged from 6 weeks to 6 years have been used. Cell injection has shown to be a safe therapy in the treatment of female SUI. However, the results from more recent randomized trials have shown less promising results than expected in restoring continence. Heterogeneous research methodologies using different cell types and doses make it difficult to draw conclusions about effectiveness. Several key points remain that need to be further explored in future clinical trials. CONCLUSION To advance in the development of cell therapy, it is essential to know the mechanisms involved to be able to direct it properly, its efficacy and the durability of the injected cells. Rigorous and homogenized preclinical and clinical studies that demonstrate its scope and improve its application are necessary for validation in the treatment of female SUI.
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Affiliation(s)
- Carmen González Enguita
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | - María Garranzo García-Ibarrola
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | - Jaime Jorge Tufet I Jaumont
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | - Héctor Garde García
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | - Raquel González López
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | - Luis Miguel Quintana Franco
- Urology Department, Hospital Universitario Fundación Jiménez Díaz, 28040 Madrid, Spain; (J.J.T.I.J.); (H.G.G.); (R.G.L.); (L.M.Q.F.)
| | | | - Mariano García-Arranz
- Instituto Investigaión Sanitaria Fundación Jiménez Díaz (IIS-FJD), 28040 Madrid, Spain;
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Carter E, Johnson EE, Still M, Al-Assaf AS, Bryant A, Aluko P, Jeffery ST, Nambiar A. Single-incision sling operations for urinary incontinence in women. Cochrane Database Syst Rev 2023; 10:CD008709. [PMID: 37888839 PMCID: PMC10604512 DOI: 10.1002/14651858.cd008709.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Stress urinary incontinence imposes a significant health and economic burden on individuals and society. Single-incision slings are a minimally-invasive treatment option for stress urinary incontinence. They involve passing a short synthetic device through the anterior vaginal wall to support the mid-urethra. The use of polypropylene mesh in urogynaecology, including mid-urethral slings, is restricted in many countries. This is a review update (previous search date 2012). OBJECTIVES To assess the effects of single-incision sling operations for treating urinary incontinence in women, and to summarise the principal findings of relevant economic evaluations. SEARCH METHODS We searched the Cochrane Incontinence Specialised Register, which contains trials identified from: CENTRAL, MEDLINE, MEDLINE In-Process, MEDLINE Epub Ahead of Print, and two trials registers. We handsearched journals, conference proceedings, and reference lists of relevant articles to 20 September 2022. SELECTION CRITERIA We included randomised or quasi-randomised controlled trials in women with stress (or stress-predominant mixed) urinary incontinence in which at least one, but not all, trial arms included a single-incision sling. DATA COLLECTION AND ANALYSIS We used standard Cochrane methodological procedures. The primary outcome was subjective cure or improvement of urinary incontinence. MAIN RESULTS We included 62 studies with a total of 8051 women in this review. We did not identify any studies comparing single-incision slings to no treatment, conservative treatment, colposuspension, or laparoscopic procedures. We assessed most studies as being at low or unclear risk of bias, with five studies at high risk of bias for outcome assessment. Sixteen trials used TVT-Secur, a single-incision sling withdrawn from the market in 2013. The primary analysis in this review excludes trials using TVT-Secur. We report separate analyses for these trials, which did not substantially alter the effect estimates. We identified two cost-effectiveness analyses and one cost-minimisation analysis. Single-incision sling versus autologous fascial sling One study (70 women) compared single-incision slings to autologous fascial slings. It is uncertain if single-incision slings have any effect on risk of dyspareunia (painful sex) or mesh exposure, extrusion or erosion compared with autologous fascial slings. Subjective cure or improvement of urinary incontinence at 12 months, patient-reported pain at 24 months or longer, number of women with urinary retention, quality of life at 12 months and the number of women requiring repeat continence surgery or sling revision were not reported for this comparison. Single-incision sling versus retropubic sling Ten studies compared single-incision slings to retropubic slings. There may be little to no difference between single-incision slings and retropubic slings in subjective cure or improvement of incontinence at 12 months (risk ratio (RR) 0.99, 95% confidence interval (CI) 0.91 to 1.07; 2 trials, 297 women; low-certainty evidence). It is uncertain whether single-incision slings increase the risk of mesh exposure, extrusion or erosion compared with retropubic minimally-invasive slings; the wide confidence interval is consistent with both benefit and harm (RR 1.55, 95% CI 0.24 to 9.82; 3 trials, 267 women; low-certainty evidence). It is uncertain whether single-incision slings lead to fewer women having postoperative urinary retention compared with retropubic slings; the wide confidence interval is consistent with possible benefit and harm (RR 0.47, 95% CI 0.12 to 1.84; 2 trials, 209 women; low-certainty evidence). The effect of single-incision slings on the risk of repeat continence surgery or mesh revision compared with retropubic slings is uncertain (RR 4.19, 95% CI 0.31 to 57.28; 2 trials, 182 women; very low-certainty evidence). One study reported quality of life, but not in a suitable format for analysis. Patient-reported pain at more than 24 months and the number of women with dyspareunia were not reported for this comparison. We downgraded the evidence due to concerns about risks of bias, imprecision and inconsistency. Single-incision sling versus transobturator sling Fifty-one studies compared single-incision slings to transobturator slings. The evidence ranged from high to low certainty. There is no evidence of a difference in subjective cure or improvement of incontinence at 12 months when comparing single-incision slings with transobturator slings (RR 1.00, 95% CI 0.97 to 1.03; 17 trials, 2359 women; high-certainty evidence). Single-incision slings probably have a reduced risk of patient-reported pain at 24 months post-surgery compared with transobturator slings (RR 0.12, 95% CI 0.02 to 0.68; 2 trials, 250 women; moderate-certainty evidence). The effect of single-incision slings on the risk of dyspareunia is uncertain compared with transobturator slings, as the wide confidence interval is consistent with possible benefit and possible harm (RR 0.78, 95% CI 0.41 to 1.48; 8 trials, 810 women; moderate-certainty evidence). There are a similar number of mesh exposures, extrusions or erosions with single-incision slings compared with transobturator slings (RR 0.61, 95% CI 0.39 to 0.96; 16 trials, 2378 women; high-certainty evidence). Single-incision slings probably result in similar or reduced cases of postoperative urinary retention compared with transobturator slings (RR 0.68, 95% CI 0.47 to 0.97; 23 trials, 2891 women; moderate-certainty evidence). Women with single-incision slings may have lower quality of life at 12 months compared to transobturator slings (standardised mean difference (SMD) 0.24, 95% CI 0.09 to 0.39; 8 trials, 698 women; low-certainty evidence). It is unclear whether single-incision slings lead to slightly more women requiring repeat continence surgery or mesh revision compared with transobturator slings (95% CI consistent with possible benefit and harm; RR 1.42, 95% CI 0.94 to 2.16; 13 trials, 1460 women; low-certainty evidence). We downgraded the evidence due to indirectness, imprecision and risks of bias. AUTHORS' CONCLUSIONS Single-incision sling operations have been extensively researched in randomised controlled trials. They may be as effective as retropubic slings and are as effective as transobturator slings for subjective cure or improvement of stress urinary incontinence at 12 months. It is uncertain if single-incision slings lead to better or worse rates of subjective cure or improvement compared with autologous fascial slings. There are still uncertainties regarding adverse events and longer-term outcomes. Therefore, longer-term data are needed to clarify the safety and long-term effectiveness of single-incision slings compared to other mid-urethral slings.
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Affiliation(s)
- Emily Carter
- The Warrell Unit, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Eugenie E Johnson
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Madeleine Still
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Aalya S Al-Assaf
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle Upon Tyne, UK
| | - Andrew Bryant
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Patricia Aluko
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle Upon Tyne, UK
| | - Stephen T Jeffery
- Division of Urology, University of Cape Town, Cape Town, South Africa
| | - Arjun Nambiar
- Department of Urology, Freeman Hospital, Newcastle-upon-Tyne, UK
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Prudencio CB, Nunes SK, Pinheiro FA, Sartorão Filho CI, Nava GTDA, Salomoni SE, Pedroni CR, Rudge MVC, Barbosa AMP. Gestational diabetes is associated with alteration on pelvic floor muscle activation pattern during pregnancy and postpartum: Prospective cohort using electromyography assessment. Front Endocrinol (Lausanne) 2022; 13:958909. [PMID: 36277705 PMCID: PMC9582526 DOI: 10.3389/fendo.2022.958909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Background and objective Gestational diabetes mellitus (GDM) is a comorbidity which may cause acute and lifelong disorders to mother and child. Alterations in muscular and connective tissues have been associated with GDM in translation studies, characterizing gestational diabetic myopathy. Pregnancy-specific urinary incontinence and sexual disabilities, disorders that depend on the pelvic floor muscle (PFM) integrity, are also associated with GDM both during and after pregnancy. The aim was to compare PFM activation patterns between GDM and non-GDM women from 24-30 gestational weeks to 18-24 months postpartum during a standard clinical test during gestation and postpartum. Methods We conducted a prospective three-time-point cohort study from gestation (24-30 weeks-T1, and 36-38 weeks-T2) to 18-24 months postpartum (T3). PFM electromyography was recorded in primigravida or primiparous women with one previous elective c-section with or without the diagnosis of GDM according to the American Diabetes Association criteria. A careful explanation of the muscle anatomy and functionality of the PFM was given to participants before EMG assessment. The outcome measures were PFM activation patterns assessed during pregnancy and postpartum, comparing intra and between groups. PFM activation patterns were assessed by normalized electromyography signal at rest and during 1-second (sec) phasic, 10-sec hold, and 60-sec sustained contractions. Results Demographic and obstetric data showed homogeneity between groups. The GDM group achieved peak PFM EMG amplitudes similarly to the non-GDM group, but they took longer to return to baseline levels during the ~1-sec contraction (flicks). During 10-sec hold contractions, the GDM group sustained lower levels of PFM activation than the non-GDM group at both 36-38 weeks of gestation and 18-24 months postpartum when compared to the non-GDM group. Conclusion The results suggest that GDM impaired PFM control mainly on 1-sec flicks and 10-sec hold contraction, which appears to develop during late pregnancy and extends long-term postpartum. This motor behavior may play a role on pelvic floor dysfunctions.
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Affiliation(s)
- Caroline Baldini Prudencio
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
| | - Sthefanie Kenickel Nunes
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
| | - Fabiane Affonso Pinheiro
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
| | - Carlos Izaias Sartorão Filho
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
| | | | | | | | - Marilza Vieira Cunha Rudge
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
| | - Angélica Mércia Pascon Barbosa
- São Paulo State University (Unesp), Postgraduate Program on Tocogynecology, Botucatu Medical School, Botucatu, Brazil
- São Paulo State University (Unesp), School of Philosophy and Sciences, Marilia, Brazil
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Reed P, Osborne LA, Whittall CM, Emery S, Truzoli R. Patient and economic benefits of psychological support for noncompliant patients. Front Psychol 2022; 13:829880. [PMID: 36186372 PMCID: PMC9521354 DOI: 10.3389/fpsyg.2022.829880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 07/25/2022] [Indexed: 12/03/2022] Open
Abstract
The current paper provides an overview of treatment noncompliance at various points in the treatment pathway, especially with respect to treatment for Pelvic-floor Dysfunction (PFD). The effects of noncompliance on healthcare are considered, and examples of supporting patients psychologically to increase compliance are discussed. An outline of a method to identify costs of non-compliance, and where such costs most intensely impact the healthcare system, is provided. It is suggested that psychological support is effective in terms of increased compliance and improved healthcare economics. The model is presented for PFD, but the principles developed can be generalised to many aspects of healthcare.
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Affiliation(s)
- Phil Reed
- Department of Psychology, Swansea University, Swansea, United Kingdom
| | - Lisa A. Osborne
- School of Psychology and Counselling, The Open University, Milton Keynes, United Kingdom
- Swansea Bay University Health Board, Swansea, United Kingdom
| | | | - Simon Emery
- Swansea Bay University Health Board, Swansea, United Kingdom
| | - Roberto Truzoli
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- *Correspondence: Roberto Truzoli,
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Zrubka Z, Péntek M, Mhanna L, Abu-Zahra T, Mahdi-Abid M, Fgaier M, El-Dahiyat F, Al-Abdulkarim H, Drummond M, Gulácsi L. Disease-Related Costs Published in The Middle East and North Africa Region: Systematic Review and Analysis of Transferability. PHARMACOECONOMICS 2022; 40:587-599. [PMID: 35578009 PMCID: PMC9130178 DOI: 10.1007/s40273-022-01146-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND In the Middle East and North Africa (MENA) the scarcity of local cost data is a key barrier to conducting health economic evaluations. We systematically reviewed reports of disease-related costs from MENA and analysed their transferability within the region. METHODS We searched PubMed and included full text English papers that reported disease-related costs from the local populations of Algeria, Bahrain, Egypt, Iraq, Jordan, Saudi Arabia, Kuwait, Lebanon, Libya, Morocco, Oman, Palestine, Qatar, Syria, Tunisia, United Arab Emirates and Yemen between 1995 and 2019. Screening, study selection and data extraction were done in duplicate. Study-related variables, costing methods, all costs and their characteristics were extracted and analysed via descriptive methods. From multi-country studies of MENA employing homogenous costing methods, we estimated the ratio (cost transfer coefficient) between the relative differences in direct medical costs and macroeconomic indicators via robust regression. We predicted each cost via the estimated cost transfer formula and evaluated prediction error between true and predicted (transferred) costs. RESULTS The search yielded 1646 records, 206 full text papers and 3525 costs from 84 diagnoses. Transferability was analysed involving 144 direct medical costs from eight multi-country studies. Adjusting the average of available foreign costs by 0.28 times the relative difference in GDP per capita provided the most accurate estimates. The correlation between true and predicted costs was 0.96; 68% of predicted costs fell in the true ± 50% range. Predictions were more accurate for costs from studies that involved the largest number of countries, for countries outside the Gulf region and for drug costs versus unit or disease costs. CONCLUSION The estimated cost transfer formula allows the prediction of missing costs in MENA if only GDP per capita is available for adjustment to the local setting. Input costs for the formula should be collected from multiple sources and match the decision situation.
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Affiliation(s)
- Zsombor Zrubka
- Health Economics Research Center, University Research and Innovation Center, Óbuda University Budapest, Óbudai Egyetem, Bécsi út 96, Budapest, 1034 Hungary
- Corvinus Institute for Advanced Studies, Corvinus University of Budapest, Budapest, Hungary
| | - Márta Péntek
- Health Economics Research Center, University Research and Innovation Center, Óbuda University Budapest, Óbudai Egyetem, Bécsi út 96, Budapest, 1034 Hungary
| | - Lea Mhanna
- Doctoral School of Applied Informatics and Applied Mathematics, Óbuda University, Budapest, Hungary
| | - Teebah Abu-Zahra
- Health Policy and Financing Masters Course, Corvinus University of Budapest, Budapest, Hungary
| | - Mohamed Mahdi-Abid
- Research Center of Epidemiology and Statistics, Paris University, Paris, France
| | - Meriem Fgaier
- Doctoral School of Applied Informatics and Applied Mathematics, Óbuda University, Budapest, Hungary
| | - Faris El-Dahiyat
- College of Pharmacy, Al Ain University, Al Ain, United Arab Emirates
| | - Hana Al-Abdulkarim
- Doctoral School of Applied Informatics and Applied Mathematics, Óbuda University, Budapest, Hungary
- Drug Policy and Economic Center, Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | | | - László Gulácsi
- Health Economics Research Center, University Research and Innovation Center, Óbuda University Budapest, Óbudai Egyetem, Bécsi út 96, Budapest, 1034 Hungary
- Corvinus Institute for Advanced Studies, Corvinus University of Budapest, Budapest, Hungary
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Indirectness (transferability) is critical when considering existing economic evaluations for GRADE Clinical Practice Guidelines: A systematic review. J Clin Epidemiol 2022; 148:81-92. [PMID: 35462047 DOI: 10.1016/j.jclinepi.2022.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/14/2022] [Accepted: 04/11/2022] [Indexed: 11/22/2022]
Abstract
OBJECTIVE GRADE practice guideline developers often perform systematic reviews of potential economic evaluations to inform recommendation decision-making. We aimed to identify indirectness characteristics of economic evaluations, related to GRADE evidence-to-decision (EtD) theoretical frameworks, that influence selection of these articles. STUDY DESIGN AND SETTING MEDLINE, EMBASE, CINAHL and EconLit were systematically searched to May 2020 to identify indirectness characteristics relevant for economic evaluation transferability to GRADE evidence-to-decision (EtD) theoretical frameworks. Four reviewers screened citations to identify articles of any type that explored study characteristics most important or relevant to economic evaluation transferability, restricted to English language We generated frequencies of article features, used thematic analysis to summarize study characteristics and assessed certainty in the evidence using GRADE-CERQual. RESULTS We included 57 articles, with a dearth of empirical literature - some may have been missed. We identified 8 general themes and 28 sub-themes most important to transferability from 41% of articles. Moderate-to-high confidence evidence suggested that GRADE EtD domains of population, intervention and comparison research question elements, resource use estimation and methodology, and provider and decision-maker acceptability are most important indirectness study characteristics that economists consider when choosing economic evaluation outcomes for use in recommendation decision-making. CONCLUSION We have identified factors important for guideline developers to consider when selecting economic evaluations as research evidence. An economic competency on the development team facilitates these endeavors. This supports the GRADE Working Group's tenant of transparent reporting or availability of sufficient information elsewhere to assess indirectness.
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Karunakaran M, Jonnada PK, Chandrashekhar SH, Vinayachandran G, Kaambwa B, Barreto SG. Enhancing the cost-effectiveness of surgical care in pancreatic cancer: a systematic review and cost meta-analysis with trial sequential analysis. HPB (Oxford) 2022; 24:309-321. [PMID: 34848126 DOI: 10.1016/j.hpb.2021.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/21/2021] [Accepted: 11/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Clinical pathways (CP) based on Enhanced recovery after surgery (ERAS®) are increasingly utilised in patients undergoing pancreatoduodenectomy (PD). This systematic review aimed to compare the impact of CPs versus conventional care (CC) on peri-PD costs. METHODS A systematic review of major reference databases was undertaken. Quality assessment was performed using the CHEERS checklist. Incremental cost-effectiveness ratios were calculated as part of the cost-effectiveness analysis. A meta-analysis was performed using random-effects models and Trial sequential analysis (TSA) was used to assess the precision and conclusiveness of the results. RESULTS 14 studies meeting inclusion criteria were included for full qualitative synthesis. All studies reported a reduction in overall costs, length of stay and overall complication rates for CPs when compared to CC. Meta-analysis performed on nine studies demonstrated significantly reduced costs in the CP group, with considerable heterogeneity (Pooled mean difference of $ 4.28 × 103, p < 0.01, I2 = 95%). Cost-effectiveness analysis in relation to complications demonstrated dominance of CPs over CC in being cheaper as well as more effective. TSA supported the cost benefit of enhanced-recovery CPs, displaying minimal type 1 error. CONCLUSION Peri-PD CPs result in significant cost-reduction in comparison to CC.
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Affiliation(s)
- Monish Karunakaran
- Department of Surgical Gastroenterology, SK Hospital, Thiruvananthapuram, India
| | - Pavan K Jonnada
- Department of Surgical Oncology, Basavatarakam Indo-American Cancer Hospital & Research Institute, Hyderabad, India
| | - Sagar H Chandrashekhar
- Department of Gastrointestinal Surgery, Gastrointestinal Oncology, and Bariatric Surgery, Medanta- The Medicity, Gurgaon, India
| | | | - Billingsley Kaambwa
- College of Medicine and Public Health, Flinders University, South Australia, Australia
| | - Savio G Barreto
- College of Medicine and Public Health, Flinders University, South Australia, Australia; Division of Surgery and Perioperative Medicine, Flinders Medical Center, Bedford Park, Adelaide, South Australia, Australia.
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De La Torre P, Pérez-Lorenzo MJ, Alcázar-Garrido Á, Collado J, Martínez-López M, Forcén L, Masero-Casasola AR, García A, Gutiérrez-Vélez MC, Medina-Polo J, Muñoz E, Flores AI. Perinatal mesenchymal stromal cells of the human decidua restore continence in rats with stress urinary incontinence induced by simulated birth trauma and regulate senescence of fibroblasts from women with stress urinary incontinence. Front Cell Dev Biol 2022; 10:1033080. [PMID: 36742196 PMCID: PMC9893794 DOI: 10.3389/fcell.2022.1033080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Stress urinary incontinence (SUI) is a condition that causes the involuntary loss of urine when making small efforts, which seriously affects daily life of people who suffer from it. Women are more affected by this form of incontinence than men, since parity is the main risk factor. Weakening of the pelvic floor tissues is the cause of SUI, although a complete understanding of the cellular and molecular mechanisms of the pathology is still lacking. Reconstructive surgery to strengthen tissue in SUI patients is often associated with complications and/or is ineffective. Mesenchymal stromal cells from the maternal side of the placenta, i.e. the decidua, are proposed here as a therapeutic alternative based on the regenerative potential of mesenchymal cells. The animal model of SUI due to vaginal distention simulating labor has been used, and decidual mesenchymal stromal cell (DMSC) transplantation was effective in preventing a drop in pressure at the leak point in treated animals. Histological analysis of the urethras from DMSC-treated animals after VD showed recovery of the muscle fiber integrity, low or no extracellular matrix (ECM) infiltration and larger elastic fibers near the external urethral sphincter, compared to control animals. Cells isolated from the suburethral connective tissue of SUI patients were characterized as myofibroblasts, based on the expression of several specific genes and proteins, and were shown to achieve premature replicative senescence. Co-culture of SUI myofibroblasts with DMSC via transwell revealed a paracrine interaction between the cells through signals that mediated DMSC migration, SUI myofibroblast proliferation, and modulation of the proinflammatory and ECM-degrading milieu that is characteristic of senescence. In conclusion, DMSC could be an alternative therapeutic option for SUI by counteracting the effects of senescence in damaged pelvic tissue.
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Affiliation(s)
- Paz De La Torre
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
| | | | - Álvaro Alcázar-Garrido
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Jennifer Collado
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
| | | | - Laura Forcén
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ana R. Masero-Casasola
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Alicia García
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Mª Carmen Gutiérrez-Vélez
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - José Medina-Polo
- Male’s Integral Health Group, Urology Department, Research Institute Hospital 12 de Octubre (imas12), Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Eloy Muñoz
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- Obstetrics and Gynecology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Ana I. Flores
- Regenerative Medicine Group, Research Institute Hospital 12 de Octubre (imas12), Madrid, Spain
- *Correspondence: Ana I. Flores,
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García-Mochón L, Rovira Forns J, Espin J. Cost transferability problems in economic evaluation as a framework for an European health care and social costs database. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2021; 19:43. [PMID: 34275470 PMCID: PMC8286608 DOI: 10.1186/s12962-021-00294-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
This article presents part of the work within Work Package 3 (WP3) of Impact HTA (Improved methods and actionable tools for enhancing HTA), a H2020 EU-funded research project, intended to enhance and promote collaboration in HTA across EU MS. Amongst other objectives, and in close collaboration with WP4, WP3 addressed setting up a multi-country unit-cost database: the European health care and social costs database (EU HCSCD). The purpose of the database is to facilitate the transference of healthcare economic evaluation analyses across countries, jurisdictions and settings. WP3 concentrates on healthcare costs; WP4 on social costs. This paper discusses the state of the art on this topic, building an appropriate conceptual and theoretical framework for Database development. We conducted a broad, but not systematic, literature and gray-literature review (LR), identifying existing practices and problems, and their implications, described in the Results section. We discuss practical implications and draw important conclusions behind the construction, and future evolution, of this database.
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Affiliation(s)
- Leticia García-Mochón
- Andalusian School of Public Health, Cuesta del Observatorio 4, 18011, Granada, Spain. .,CIBER en Epidemiología y Salud Pública (CIBERESP), Spain/CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain. .,Instituto de Investigación Biosanitaria ibs, Granada, Spain.
| | - Joan Rovira Forns
- Andalusian School of Public Health, Cuesta del Observatorio 4, 18011, Granada, Spain
| | - Jaime Espin
- Andalusian School of Public Health, Cuesta del Observatorio 4, 18011, Granada, Spain.,CIBER en Epidemiología y Salud Pública (CIBERESP), Spain/CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
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10
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van den Brink MJ, Beelen P, Herman MC, Geomini PM, Dekker JH, Vermeulen KM, Bongers MY, Berger MY. The levonorgestrel intrauterine system versus endometrial ablation for heavy menstrual bleeding: a cost-effectiveness analysis. BJOG 2021; 128:2003-2011. [PMID: 34245652 PMCID: PMC8518490 DOI: 10.1111/1471-0528.16836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2021] [Indexed: 11/30/2022]
Abstract
Objective To evaluate the costs and non‐inferiority of a strategy starting with the levonorgestrel intrauterine system (LNG‐IUS) compared with endometrial ablation (EA) in the treatment of heavy menstrual bleeding (HMB). Design Cost‐effectiveness analysis from a societal perspective alongside a multicentre randomised non‐inferiority trial. Setting General practices and gynaecology departments in the Netherlands. Population In all, 270 women with HMB, aged ≥34 years old, without intracavitary pathology or wish for a future child. Methods Randomisation to a strategy starting with the LNG‐IUS (n = 132) or EA (n = 138). The incremental cost‐effectiveness ratio was estimated. Main outcome measures Direct medical costs and (in)direct non‐medical costs were calculated. The primary outcome was menstrual blood loss after 24 months, measured with the mean Pictorial Blood Assessment Chart (PBAC)‐score (non‐inferiority margin 25 points). A secondary outcome was successful blood loss reduction (PBAC‐score ≤75 points). Results Total costs per patient were €2,285 in the LNG‐IUS strategy and €3,465 in the EA strategy (difference: €1,180). At 24 months, mean PBAC‐scores were 64.8 in the LNG‐IUS group (n = 115) and 14.2 in the EA group (n = 132); difference 50.5 points (95% CI 4.3–96.7). In the LNG‐IUS group, 87% of women had a PBAC‐score ≤75 points versus 94% in the EA group (relative risk [RR] 0.93, 95% CI 0.85–1.01). The ICER was €23 (95% CI €5–111) per PBAC‐point. Conclusions A strategy starting with the LNG‐IUS was cheaper than starting with EA, but non‐inferiority could not be demonstrated. The LNG‐IUS is reversible and less invasive and can be a cost‐effective treatment option, depending on the success rate women are willing to accept. Tweetable abstract Treatment of heavy menstrual bleeding starting with LNG‐IUS is cheaper but slightly less effective than endometrial ablation. Treatment of heavy menstrual bleeding starting with LNG‐IUS is cheaper but slightly less effective than endometrial ablation.
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Affiliation(s)
- M J van den Brink
- Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - P Beelen
- Department of General Practice, University of Maastricht, Maastricht University Medical Centre, Maastricht, The Netherlands.,Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands
| | - M C Herman
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands
| | - P M Geomini
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands
| | - J H Dekker
- Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - K M Vermeulen
- Department of Epidemiology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - M Y Bongers
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands.,Department of Obstetrics and Gynaecology, Grow Research School for Oncology and Developmental Biology, University of Maastricht, Maastricht, The Netherlands
| | - M Y Berger
- Department of General Practice and Elderly Care Medicine, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
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11
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Garcia-Arranz M, Alonso-Gregorio S, Fontana-Portella P, Bravo E, Diez Sebastian J, Fernandez-Santos ME, Garcia-Olmo D. Two phase I/II clinical trials for the treatment of urinary incontinence with autologous mesenchymal stem cells. Stem Cells Transl Med 2020; 9:1500-1508. [PMID: 32864818 PMCID: PMC7695632 DOI: 10.1002/sctm.19-0431] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/06/2020] [Accepted: 07/19/2020] [Indexed: 12/21/2022] Open
Abstract
We evaluated the safety and feasibility of adipose‐derived mesenchymal stem cells to treat endoscopically urinary incontinence after radical prostatectomy in men or female stress urinary. We designed two prospective, nonrandomized phase I‐IIa clinical trials of urinary incontinence involving 9 men (8 treated) and 10 women to test the feasibility and safety of autologous mesenchymal stem cells for this use. Cells were obtained from liposuction containing 150 to 200 g of fat performed on every patient. After 4 to 6 weeks and under sedation, endoscopic intraurethral injection of the cells was performed. On each visit (baseline, 1, 3, 6, and 12 months), clinical parameters were measured, and blood samples, urine culture, and uroflowmetry were performed. Every patient underwent an urethrocystoscopy and urodynamic studies on the first and last visit. Data from pad test, quality‐of‐life and incontinence questionnaires, and pads used per day were collected at every visit. Statistical analysis was done by Wilcoxon signed‐rank test. No adverse effects were observed. Three men (37.5%) and five women (50%) showed an objective improvement of >50% (P < .05) and a subjective improvement of 70% to 80% from baseline. In conclusion, intraurethral application of stem cells derived from adipose tissue is a safe and feasible procedure to treat urinary incontinence after radical prostatectomy or in female stress urinary incontinence. A statistically significant difference was obtained for pad‐test improvement in 3/8 men and 5/10 women. Our results encourage studies to confirm safety and to analyze efficacy.
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Affiliation(s)
- Mariano Garcia-Arranz
- New Therapies Laboratory, Health Research Institute-Fundación Jiménez Díaz University Hospital (IIS-FJD), Madrid, Spain.,Surgery Department, Autonoma University of Madrid, Madrid, Spain
| | | | | | - Elena Bravo
- Department of Plastic Surgery, La Paz University Hospital, Madrid, Spain
| | | | | | - Damian Garcia-Olmo
- New Therapies Laboratory, Health Research Institute-Fundación Jiménez Díaz University Hospital (IIS-FJD), Madrid, Spain.,Surgery Department, Autonoma University of Madrid, Madrid, Spain
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12
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Bovbjerg ML, Cheyney M. Current Resources for Evidence-Based Practice, July 2020. J Obstet Gynecol Neonatal Nurs 2020; 49:391-404. [PMID: 32574584 PMCID: PMC7305877 DOI: 10.1016/j.jogn.2020.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
An extensive review of new resources to support the provision of evidence-based care for women and infants. The current column includes a discussion of whether it is ethical not to offer doula care to all women, and commentaries on reviews focused on folic acid and autism spectrum disorder, and timing of influenza vaccination during pregnancy.
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13
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Farmer ZL, Domínguez-Robles J, Mancinelli C, Larrañeta E, Lamprou DA. Urogynecological surgical mesh implants: New trends in materials, manufacturing and therapeutic approaches. Int J Pharm 2020; 585:119512. [PMID: 32526332 DOI: 10.1016/j.ijpharm.2020.119512] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 01/14/2023]
Abstract
Pelvic Organ Prolapse (POP) and Stress Urinary Incontinence (SUI) are two prevalent disorders affecting 30-40% of women worldwide. Current strategies to repair or improve these medical conditions are non-surgical options such as physiotherapy, or surgical options such as the use of vaginal meshes. The synthetic material polypropylene (PP), which has long been used for manufacturing these vaginal meshes, is associated with severe complications such as chronic pain, infection or mesh erosion. As a result of a widespread reporting and unacceptably high rates of complications, these issues have become a public health concern. Regulatory bodies have recently deemed the transvaginal placement of PP mesh in the pelvic floor (PF) no longer a suitable treatment method for PF repair, leading to the need for a novel approach to the manufacture and selection of materials for urogynecological meshes. Medical devices, such as vaginal meshes can be manufactured using a variety of techniques including injection moulding, electrospinning, hot-melt extrusion (HME) or more recently 3D printing. Over the past decade, the use of 3D printing within the medical device industry has expanded and offers a promising approach to manufacture patient-specific surgical mesh when combined with imaging tools. This review will summarise the current strategies to treat POP and SUI, the issues and use of current meshes for the treatment of these pelvic floor disorders (PFDs), and the future directions for the manufacture of more suitable urogynecological meshes, as well as their potential materials.
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Affiliation(s)
- Zara-Louise Farmer
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Caterina Mancinelli
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Dimitrios A Lamprou
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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14
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Koenig I, Moetteli C, Luginbuehl H, Radlinger L, Kuhn A, Taeymans J. Health status, comorbidities and cost-of-illness in females with stress urinary incontinence living in the Canton of Bern. ZEITSCHRIFT FUR EVIDENZ FORTBILDUNG UND QUALITAET IM GESUNDHEITSWESEN 2020; 150-152:73-79. [PMID: 32439424 DOI: 10.1016/j.zefq.2020.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/09/2020] [Accepted: 02/06/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Two thirds of women suffering from stress urinary incontinence (SUI) reported a negative impact on quality of life (QoL). SUI can also lead to less physical activity and more comorbidities. SUI may result in a substantial economic burden on health care services but numbers are not clear. Therefore, the aim of this study was to estimate the health status, the comorbidities and the health costs of women with SUI living in the Canton of Bern (Switzerland). METHODS This cost-of-illness (COI) study was embedded in an RCT (n=96) exploring the effect of two pelvic floor muscle training protocols in women with SUI. A prevalence-based COI study with a societal perspective and a bottom-up approach was applied. Baseline demographics, comorbidities and cost data were collected prospectively during 16 weeks. Descriptive statistics, a frequency and a one-way sensitivity analysis were performed. RESULTS Thirty-seven participants volunteered in this COI study. About 95 % had at least one comorbidity. The most commonly reported problem was back pain (47.6 %). Fifty-one percent consulted a medical doctor, the prevalence of drug consumption was 70 %, 11 % reported less efficiency whilst working and 30 % less physical activity. Mental stress was mentioned by 59.5 % of the participants. The average health costs were CHF 2256. DISCUSSION This COI study provided data on health status, comorbidities, QoL, health care use, productivity losses and costs of SUI. The high prevalence of comorbidities observed in this study was comparable to obese females of a similar age group. The high economic burden of SUI requires cost-effective preventive actions and clinical treatment concepts.
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Affiliation(s)
- Irene Koenig
- Bern University of Applied Sciences, Department of Health Professions, Division of Physiotherapy, Bern, Switzerland; Vrije Universiteit Brussel, Faculty of Physical Education and Physiotherapy, Brussels, Belgium.
| | - Céline Moetteli
- Bern University of Applied Sciences, Department of Health Professions, Division of Physiotherapy, Bern, Switzerland; Zurich University of Applied Sciences, Health Professions, Institute of Physiotherapy, Switzerland
| | - Helena Luginbuehl
- Bern University of Applied Sciences, Department of Health Professions, Division of Physiotherapy, Bern, Switzerland
| | - Lorenz Radlinger
- Bern University of Applied Sciences, Department of Health Professions, Division of Physiotherapy, Bern, Switzerland
| | - Annette Kuhn
- Women's Hospital, Urogynaecology, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Jan Taeymans
- Bern University of Applied Sciences, Department of Health Professions, Division of Physiotherapy, Bern, Switzerland; Vrije Universiteit Brussel, Faculty of Physical Education and Physiotherapy, Brussels, Belgium
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15
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Javanbakht M, Moloney E, Brazzelli M, Wallace S, Omar MI, Monga A, Saraswat L, Mackie P, Imamura M, Hudson J, Shimonovich M, MacLennan G, Vale L, Craig D. Surgical treatments for women with stress urinary incontinence: a systematic review of economic evidence. Syst Rev 2020; 9:85. [PMID: 32312310 PMCID: PMC7169003 DOI: 10.1186/s13643-020-01352-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 04/07/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Surgical interventions for the treatment of stress urinary incontinence (SUI) in women are commonly employed following the failure of minimally invasive therapies. Due to the limited information available on the relative cost-effectiveness of available surgeries for treating SUI, a de novo economic analysis was conducted to assess costs and effects of all relevant surgeries. To inform the economic analysis, the objective of this review was to identify and assess the quality of existing economic evaluation studies on different surgical interventions for the treatment of SUI in women. METHODS The following databases were searched during the review process: Medical Literature Analysis and Retrieval System Online (MEDLINE), MEDLINE In-Process, Excerpta Medica Database (Embase), National Health Service Economic Evaluation Database (NHS EED), and Health Management Information Consortium and Cost-Effectiveness Analysis Registry (CEA registry). The key criteria for inclusion were that the study population included women with SUI and that the surgical interventions considered were utilised as either a primary or a follow-up surgery. The review included only full economic evaluations. Studies were quality assessed using the Drummond checklist for economic evaluations. No quantitative synthesis of the results by meta-analysis was conducted due to the high methodological heterogeneity. RESULTS Twenty-six economic evaluations were included, of which 13 were model-based analyses. Surgical treatments assessed most frequently were mid-urethral slings and open and laparoscopic colposuspension. There were some differences in the methodological approaches taken, including differences in type of economic analysis, perspective, time horizon, types of resource use, and costs and outcomes that were included in the analysis. The majority of studies conducted a cost-utility analysis from a health system perspective and applied a time horizon of between 1 and 5 years. The cost-effectiveness results suggest that single-incision mini-sling and mid-urethral slings are among the most cost-effective options. CONCLUSIONS The review has shown that methods used for the economic evaluation of surgical treatments for SUI vary widely in terms of study design, analysis type, compared alternatives, time horizon, costing methodologies and effect outcomes. Future economic evaluation studies on surgical treatments for SUI may be improved by the application of available guidelines. SYSTEMATIC REVIEW REGISTRATION Registered in PROSPERO in 2016, CRD42016049339.
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Affiliation(s)
- Mehdi Javanbakht
- Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK
| | - Eoin Moloney
- Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK.
| | - Miriam Brazzelli
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Sheila Wallace
- Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK
| | - Muhammad Imran Omar
- Guidelines Office Methodology Supervisor, European Association of Urology, Arnhem, Netherlands
| | - Ash Monga
- University Hospitals Southampton Foundation Trust, Southampton, UK
| | | | - Phil Mackie
- Scottish Public Health Network, NHS Health Scotland, Glasgow, UK
| | - Mari Imamura
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Jemma Hudson
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | | | - Graeme MacLennan
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Luke Vale
- Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK
| | - Dawn Craig
- Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK
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