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Sobhani S, Foroushani AR, Arshadi H, Hekmati P, Kajbafzadeh AM. Simultaneous primary posterior urethral valves ablation and bladder neck incision may decrease kidney and bladder failure in long-term follow-up in patients with bladder neck hypertrophy and poor bladder function at presentation: report of 301 cases. BMC Urol 2024; 24:154. [PMID: 39069606 DOI: 10.1186/s12894-024-01546-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 07/19/2024] [Indexed: 07/30/2024] Open
Abstract
OBJECTIVES To investigate the effects of bladder neck incision (BNI) and primary valves ablation on long-term kidney and bladder function in children with posterior urethral valves (PUV) and bladder neck hypertrophy (BNH). PATIENTS AND METHODS From 1997 to 2016, a total of 1381 children with PUV were referred to our tertiary hospital. Of these patients, 301 PUV patients with bladder neck hypertrophy need concurrent BNI and valve ablation. All patients were followed up every 3-6 months on regular basis in first 2 post-surgical years and annually then after. The paired t-test and chi-square test were used to perform statistical analysis with p value < 0.05 defined as the level of significance. RESULTS Mean age at diagnosis was 7.22 ± 2.45 months (ranging from 7 days to 15 months) with a mean follow-up of 5.12 ± 2.80 years. The incidence of hydronephrosis was decreased from 266 (88.3%) at the baseline to 73 (24.3%) patients in long-term follow-up. At baseline, 188 (62.5%) patients were diagnosed with VUR, which decreased to 20 (6.6%) individuals at the end of follow-up. Bladder and renal function were improved in follow-ups following concomitant PUV ablation and BNI. No Myogenic failure was depicted in all patients with BNH. No ureteric reimplantation was needed during the two decades follow-up. CONCLUSION Simultaneous valve ablation with BNI may present further profits in children with PUV and BNH particularly cases of BNH with poor bladder function at the time of presentation. This method can improve the results of urodynamic and imaging studies after the surgery. We hypothesize every child with PUV presentation who has concurrent vesicoureteral reflux, CKD or persistent hydrourethronephrosis may suffer from secondary bladder neck obstruction. This secondary bladder outlet obstruction must be managed through BNI as the surgical relief.
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Affiliation(s)
- Soheila Sobhani
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Gharib's Street, Keshavarz Boulevard, Tehran, 1419433151, Iran
| | - Abbas Rahimi Foroushani
- School of Public Health, Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Arshadi
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Gharib's Street, Keshavarz Boulevard, Tehran, 1419433151, Iran
| | - Pooya Hekmati
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Gharib's Street, Keshavarz Boulevard, Tehran, 1419433151, Iran
| | - Abdol-Mohammad Kajbafzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Gharib's Street, Keshavarz Boulevard, Tehran, 1419433151, Iran.
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Haberal HB, Donmez MI, Piana A, Pecoraro A, Prudhomme T, Bañuelos Marco B, López-Abad A, Campi R, Boissier R, Breda A, Territo A. A systematic review of kidney transplantation outcomes in patients with end-stage renal disease due to childhood lower urinary tract malformations. Int Urol Nephrol 2024:10.1007/s11255-024-04079-5. [PMID: 38772965 DOI: 10.1007/s11255-024-04079-5] [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: 04/12/2024] [Accepted: 05/11/2024] [Indexed: 05/23/2024]
Abstract
PURPOSE Patients with lower urinary tract malformations (LUTM) were suspended from kidney transplantation (KT) programs in the past due to various concerns. Consequently, only a limited number of studies have explored this topic at hand. In this study, our objective was to perform a systematic review (SR) to evaluate the current evidence regarding KT outcomes as well as patient survival (PS), postoperative complications and urinary tract infections (UTI) in individuals with childhood LUTM. METHODS The search encompassed databases of Web of Science, Medline (via PubMed), and Embase (via Scopus) to identify all studies reporting outcomes on KT for patients with LUTM. The research included articles published in English from January 1995 till September 2023. RESULTS Of the 2634 yielded articles, 15 met the inclusion criteria, enrolling a total of 284,866 KT patients. There was significantly better 5-year graft survival (GS) in recipients with LUTM compared to the control group (RR, 1.04; 95% CI 1.02-1.06); while GS at 1-year and 10-year, and PS at 1-year, 5-year and 10-year were similar between groups. On the other hand, the postoperative UTI rate was significantly higher in the LUTM group (RR: 4.46; 95% CI 1.89-10.51). However, data on serum creatinine and estimated glomerular filtration rate on follow-up were insufficient. CONCLUSION GS and PS rates appear to be similar in patients with childhood LUTM and those with normal lower urinary tract functions. Despite a higher postoperative UTI rate within this patient group, it appears that this has no effect on GS rates.
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Affiliation(s)
- Hakan Bahadir Haberal
- Department of Urology, Ankara Ataturk Sanatorium Training and Research Hospital, Ministry of Health, University of Health Sciences, 06290, Ankara, Turkey.
| | - Muhammet Irfan Donmez
- Department of Urology, Division of Pediatric Urology, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Alberto Piana
- Department of Urology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Turin, Italy
| | - Alessio Pecoraro
- Unit of Urological Robotic Surgery and Renal Transplantation, Careggi Hospital, University of Florence, Florence, Italy
| | - Thomas Prudhomme
- Department of Urology and Kidney Transplantation, Rangueil University Hospital, Toulouse, France
| | - Beatriz Bañuelos Marco
- Department of Urology, Renal Transplant Division, University Hospital Clínico San Carlos, Madrid, Spain
| | - Alicia López-Abad
- Department of Urology, Virgen de La Arrixaca University Hospital, Murcia, Spain
| | - Riccardo Campi
- Unit of Urological Robotic Surgery and Renal Transplantation, Careggi Hospital, University of Florence, Florence, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Romain Boissier
- Department of Urology and Renal Transplantation, La Conception University Hospital, Marseille, France
| | - Alberto Breda
- Uro-Oncology and Kidney Transplant Unit, Department of Urology at "Fundació Puigvert" Hospital, Autonoma University of Barcelona, Barcelona, Spain
| | - Angelo Territo
- Uro-Oncology and Kidney Transplant Unit, Department of Urology at "Fundació Puigvert" Hospital, Autonoma University of Barcelona, Barcelona, Spain
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Godlewski K, Tekgul S, Gong E, Vanderbrink B, Srinivasan A. Clinical considerations in adults with history of posterior urethral valves. J Pediatr Urol 2024; 20:176-182. [PMID: 37806832 DOI: 10.1016/j.jpurol.2023.09.006] [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] [Received: 04/21/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 10/10/2023]
Abstract
INTRODUCTION Management of patients with posterior urethral valves (PUV) is commonplace for many pediatric urologists, however adult providers may be far less familiar with this diagnosis, its management and long-term ramifications. As urologic management of these patients has evolved, clinical outcomes have substantially improved with many more patients now surviving into adulthood. These patients remain at increased risk of morbidity due to their condition and therefore are likely to benefit from long term follow-up with adult providers. OBJECTIVE In this review we analyze the psychosocial impacts of PUV on adults, evaluate long term transplant outcomes in PUV patients and discuss effective clinical management strategies of bladder dysfunction in adult PUV patients. STUDY DESIGN A retrospective literature review was performed using the MEDLINE (Pubmed) electronic database using key words such as "posterior urethral valve", "quality of life", "sexual function", "transplant outcomes", "bladder dysfunction", "mitrofanoff" etc. to identify relevant studies. RESULTS Generally, the quality of life of PUV patients is good, those suffering from renal insufficiency or lower urinary tract symptoms, specifically incontinence, appear to be a group that may benefit from more intensive follow-up. Good long-term kidney transplant (KT) function and survival can be achieved in patients with PUV. Rigorous management to optimize bladder function and close follow-up, are key for long term graft survival after KT. DISCUSSION The chronicity of PUV warrants adult providers to be not only well versed in the pathophysiology of the disease, but well prepared to care for these patients as they transition into adulthood. CONCLUSION Additional studies addressing psychosocial, clinical and transplant outcomes of adults with PUV are necessary to develop optimal long-term follow-up regimens for these patients.
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Affiliation(s)
- Karl Godlewski
- Children's Hospital of Philadelphia, 3401 Civic Center Blvd HUB 9th Floor, Philadelphia, PA, 19104, USA.
| | - Serdar Tekgul
- Hacettepe University, Ankara, Cankaya, Gaziosmanpasa, Sihhhiye, 06100 Ankara, Turkey.
| | - Edward Gong
- Lurie Children's Hospital, 225 E. Chicago Ave, Chicago, IL, 60611, USA.
| | - Brian Vanderbrink
- Cincinnati Children's Hospital, 3333 Burnet Ave, Cincinnati, OH, 45229, USA.
| | - Arun Srinivasan
- Children's Hospital of Philadelphia, 3401 Civic Center Blvd HUB 9th Floor, Philadelphia, PA, 19104, USA.
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Marcou M, Apel H, Wullich B, Hirsch-Koch K. [Kidney transplantation in children with complex urogenital malformations-what should be considered?]. UROLOGIE (HEIDELBERG, GERMANY) 2024; 63:351-356. [PMID: 38324034 DOI: 10.1007/s00120-024-02289-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/19/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND Congenital anomalies of the kidneys and urinary tract (CAKUT) are the most common cause of end-stage renal disease (ESRD) in children. Approximately one third of children with CAKUT have lower urinary tract dysfunction (LUTD). AIM This article highlights the important aspects that need to be considered in kidney transplantation of children with complex urogenital malformations. MATERIALS AND METHODS The paper reviews the existing literature regarding the evaluation, preparation, perioperative management, and follow-up of children with complex urogenital malformations and ESRD undergoing renal transplantation. RESULTS Comprehensive diagnostics are required before any pediatric kidney transplantation. If LUTD is suspected, voiding cystourethrography and a urodynamic examination should be performed. Treatment of symptomatic vesicoureterorenal reflux and LUTD is mandatory prior to pediatric kidney transplantation. Following successful kidney transplantation of children with congenital urogenital malformations, lifelong follow-up is required. Regular reevaluations of the bladder by means of urodynamic examinations are necessary. In patients following bladder augmentation with intestinal segments or urinary diversions in childhood, regular endoscopic examinations of the urinary tract are recommended to rule out secondary malignancy. CONCLUSION Treatment of children with complex urogenital malformations should be carried out in centers with appropriate expertise.
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Affiliation(s)
- Marios Marcou
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland.
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland.
| | - Hendrik Apel
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - Bernd Wullich
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - Karin Hirsch-Koch
- Urologische und Kinderurologische Klinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Krankenhausstr. 12, 91054, Erlangen, Deutschland
- Transplantationszentrum Erlangen, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
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Marcou M, Galiano M, Tzschoppe A, Sauerstein K, Wach S, Taubert H, Wullich B, Hirsch-Koch K, Apel H. Clean Intermittent Catheterization in Children under 12 Years Does Not Have a Negative Impact on Long-Term Graft Survival following Pediatric Kidney Transplantation. J Clin Med 2023; 13:33. [PMID: 38202040 PMCID: PMC10779672 DOI: 10.3390/jcm13010033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/16/2023] [Accepted: 12/17/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Congenital anomalies of the kidneys and urinary tract (CAKUTs) are one of the most prevalent primary causes of end-stage renal disease (ESRD) in young children, and approximately one-third of these children present with lower urinary tract dysfunction (LUTD). Many children with LUTD require therapy with clean intermittent catheterization (CIC). CIC commonly leads to bacteriuria, and considerations have arisen regarding whether CIC in immunosuppressed children is safe or whether repeated febrile urinary tract infections (UTIs) may lead to the deterioration of kidney graft function. MATERIAL AND METHODS We retrospectively reviewed all cases of primary kidney transplantation performed in our center between 2001 and 2020 in recipients aged less than twelve years. The number of episodes of febrile UTIs as well as the long-term kidney graft survival of children undergoing CIC were compared to those of children with urological causes of ESRD not undergoing CIC, as well as to those of children with nonurological causes of ESRD. RESULTS Following successful kidney transplantation in 41 children, CIC was needed in 8 of these patients. These 8 children undergoing CIC had significantly more episodes of febrile UTIs than did the 18 children with a nonurological cause of ESRD (p = 0.04) but not the 15 children with a urological cause of ESRD who did not need to undergo CIC (p = 0.19). Despite being associated with a higher rate of febrile UTIs, CIC was not identified as a risk factor for long-term kidney graft survival, and long-term graft survival did not significantly differ between the three groups at a median follow-up of 124 months. CONCLUSIONS Our study demonstrates that, under regular medical care, CIC following pediatric transplantation is safe and is not associated with a higher rate of long-term graft loss.
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Affiliation(s)
- Marios Marcou
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Matthias Galiano
- Clinic of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.G.); (A.T.); (K.S.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Anja Tzschoppe
- Clinic of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.G.); (A.T.); (K.S.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Katja Sauerstein
- Clinic of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (M.G.); (A.T.); (K.S.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Sven Wach
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Helge Taubert
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Bernd Wullich
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Karin Hirsch-Koch
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Hendrik Apel
- Clinic of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (S.W.); (H.T.); (B.W.); (K.H.-K.); (H.A.)
- Transplantation Center Erlangen-Nürnberg, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
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Pellegrino C, Capitanucci ML, Forlini V, Zaccara A, Lena F, Sollini ML, Castelli E, Mosiello G. Posterior urethral valves: Role of prenatal diagnosis and long-term management of bladder function; a single center point of view and review of literature. Front Pediatr 2022; 10:1057092. [PMID: 36683802 PMCID: PMC9853300 DOI: 10.3389/fped.2022.1057092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023] Open
Abstract
Posterior Urethral Valves (PUV) are the most common cause of lower urinary tract obstruction. More severe forms are detected early in pregnancy (mainly type I), while other forms are usually discovered later in childhood when investigating lower urinary tract symptoms. Bladder dysfunction is common and is associated with urinary incontinence in about 55% (0%-72%). Despite the removal of the obstruction by urethral valve ablation, pathological changes of the urinary tract can occur with progressive bladder dysfunction, which can cause deterioration of the upper urinary tract as well. For this reason, all children with PUV require long-term follow-up, always until puberty, and in many cases life-long. Therefore, management of PUV is not only limited to obstruction relief, but prevention and treatment of bladder dysfunction, based on urodynamic observations, is paramount. During time, urodynamic patterns may change from detrusor overactivity to decreased compliance/small capacity bladder, to myogenic failure (valve bladder). In the past, an aggressive surgical approach was performed in all patients, and valve resection was considered an emergency procedure. With the development of fetal surgery, vesico-amniotic shunting has been performed as well. Due to improvements of prenatal ultrasound, the presence of PUV is usually already suspected during pregnancy, and subsequent treatment should be performed in high-volume centers, with a multidisciplinary, more conservative approach. This is considered to be more effective and safer. Primary valve ablation is performed after clinical stability and is no longer considered an emergency procedure after birth. During childhood, a multidisciplinary approach (pediatric urologist, nephrologist, urotherapist) is recommended as well in all patients, to improve toilet training, using an advanced urotherapy program with medical treatments and urodynamic evaluations. The aim of this paper is to present our single center experience over 30 years.
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Affiliation(s)
- Chiara Pellegrino
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy
| | - Maria Luisa Capitanucci
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy
| | - Valentina Forlini
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy.,Pediatric Surgery Division, University of Genova, Genoa, Italy
| | - Antonio Zaccara
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy
| | - Federica Lena
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy.,Pediatric Surgery Division, University of Genova, Genoa, Italy
| | - Maria Laura Sollini
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy.,Division of Physical Rehabilitation, University of Tor Vergata, Rome, Italy
| | - Enrico Castelli
- Division of Neuro-Rehabilitation, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy
| | - Giovanni Mosiello
- ERN EUROGEN Affiliated Center, Division of Neuro-Urology and Surgery for Continence, Bambino Gesù Childrens' Hospital, IRCCS, Rome, Italy
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Amesty MV, García-Vaz C, Espinosa L, Martínez-Urrutia MJ, López-Pereira P. Long-Term Renal Transplant Outcome in Patients With Posterior Urethral Valves. Prognostic Factors Related to Bladder Dysfunction Management. Front Pediatr 2021; 9:646923. [PMID: 34046373 PMCID: PMC8144517 DOI: 10.3389/fped.2021.646923] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/12/2021] [Indexed: 02/01/2023] Open
Abstract
Introduction: To obtain a successful renal transplant (RT) outcome in patients with posterior urethral valves (PUV), it is necessary to accomplish an adequate bladder dysfunction treatment. Our aim was to determine prognostic factors related to bladder dysfunction management in long-term RT outcome in patients with PUV. Methods: A retrospective review of patients with PUV who received a first RT after 1985 in our institution with at least 5 years of follow-up was performed. Variables analyzed included prenatal diagnosis, age of diagnosis, initial presentation and management, bladder dysfunction treatment, other surgical treatments, pre-transplant dialysis, age of transplantation, type of donor, immunosuppression regimen, vascular and urological complications, rejections episodes, and graft survival. Results: Fifty-one patients were included in the analysis. Prenatal diagnosis was done in 37.3%. Median age of diagnosis was 0.30 (0-88) months. Initial presentation was vesicoureteral reflux (VUR) in 78% and obstructive ureterohydronefrosis in 35.3%. Initial management was valve ablation (29.4%), pyelo-ureterostomy (64.7%), and vesicostomy (5.9%). In 33.3%, a type of bladder dysfunction treatment was performed: 21.6% bladder augmentation (BA), 15.7% Mitrofanoff procedure, 17.6% anticholinergic drugs, and 27.5% clean intermittent catheterization (CIC). Pre-transplant dialysis was received by 66.7%. Transplantation was performed at 6.28 ± 5.12 years, 62.7% were cadaveric and 37.3% living-donor grafts. Acute rejection episodes were found in 23.6%. Urological complications included recurrent urinary tract infections (UTIs) (31.4%); native kidneys VUR (31.4%); graft VUR (45.1%); and ureteral obstruction (2%). Vascular complications occurred in 3.9%. Mean graft survival was 11.1 ± 6.9 years. Analyzing the prognostic factor that influenced graft survival, patients with had CIC or a Mitrofanoff procedure had a significant better long-term graft survival after 10 years of follow-up (p < 0.05), despite of the existence of more recurrent UTIs in them. A better graft survival was also found in living-donor transplants (p < 0.05). No significant differences were observed in long-term graft survival regarding native kidneys or graft VUR, BA, immunosuppression regimen, or post-transplant UTIs. Conclusion: Optimal bladder dysfunction treatment, including CIC with or without a Mitrofanoff procedure, might result in better long-term graft survival in patients with PUV. These procedures were not related to a worse RT outcome in spite of being associated with more frequent UTIs.
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Affiliation(s)
| | - Claudia García-Vaz
- Department of Preventive Medicine and Public Health, Hospital Universitario La Paz, Madrid, Spain
| | - Laura Espinosa
- Department of Pediatric Nephrology, Hospital Universitario La Paz, Madrid, Spain
| | | | - Pedro López-Pereira
- Department of Pediatric Urology, Hospital Universitario La Paz, Madrid, Spain
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