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Bhaduri M, Sarris I, Bramham K. Female Infertility in Chronic Kidney Disease. Diagnostics (Basel) 2023; 13:3216. [PMID: 37892037 PMCID: PMC10606530 DOI: 10.3390/diagnostics13203216] [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: 09/13/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
This review summarises the current literature regarding infertility in women with chronic kidney disease (CKD), describing the epidemiology, pathophysiology, investigations, and management options. The pathophysiology is multifactorial, with proposed mechanisms including disruption of the hypothalamus-pituitary-ovarian axis, chronic inflammation, oxidative stress, psychological factors, and gonadotoxic effects of medications such as cyclophosphamide. Diagnostic investigations in CKD patients seeking to conceive should be considered earlier than in the healthy population. Investigations should include hormonal profiling, including markers such as Anti-Mullerian Hormone and imaging such as ultrasound, to evaluate ovarian reserve and identify gynaecology pathology. Treatment options for infertility in CKD patients include GnRH agonists to preserve ovarian function during cyclophosphamide treatment, as well as assisted reproductive technologies including in vitro fertilisation and ovulation induction. However, these treatments must be tailored to the individual's health status, comorbidities, fertility requirements, and CKD stage. In conclusion, fertility is an important consideration for women with CKD, necessitating early investigation and tailored management. Early discussions regarding fertility are important in order to understand patients' family planning and allow for prompt referral to fertility services. While challenges exist, ongoing research aims to clarify the underlying mechanism and optimise treatment strategies, which are crucial for improving quality of life and overall health outcomes.
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Zhang K, Zhao L, Bin Y, Guo M, Zhou X, Li M, Han L, Li Q. Serum prolactin and gonadal hormones in hemodialysis women: a meta-analysis. BMC Endocr Disord 2023; 23:203. [PMID: 37749539 PMCID: PMC10518945 DOI: 10.1186/s12902-023-01452-w] [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: 05/03/2022] [Accepted: 09/08/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND A meta-analysis followed by PRISMA 2020 statement was performed aiming to present a whole prolactin and sex hormone profile in hemodialysis women. METHODS Literatures were searched in PubMed, Cochrane library, Embase, and Web of science before March 11, 2023. Trial sequential analysis (TSA) was performed to test the conclusiveness of this meta-analysis. Egger's test and trim-and-fill analysis was used to test publication bias. We took standardized mean difference (SMD) as pool effect of hormones values including prolactin (PRL), follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and progesterone (P). This study was registered in PROSPERO and the number was CRD42023394503. RESULTS Twenty-two articles from 13 countries were analyzed. Combining the results of TSA and meta-analysis, we found that compared with healthy control, hemodialysis women had higher PRL, follicular FSH and LH values and lower P levels (PRL: I2 = 87%, SMD 1.24, 95% CI: 0.79-1.69, p < 0.00001; FSH: I2 = 0%, SMD 0.34, 95% CI: 0.13-0.55, p = 0.002; LH: I2 = 39%, SMD 0.64, 95% CI: 0.34-0.93, p < 0.00001; P: I2 = 30%, SMD - 1.62, 95% CI: -2.04 to -1.20, p < 0.00001). What's more, compared with women after renal transplantation, hemodialysis women had higher PRL levels (I2 = 0%, SMD 0.51, 95% CI: 0.25-0.78, p = 0.0001). There was not enough evidence to draw a conclusion on the comparison of hormones between regular and irregular menses hemodialysis women. Egger's test and trim-and-fill analysis didn't show significant publication bias. CONCLUSIONS Hemodialysis women had higher serum PRL, follicular phase FSH, LH and lower serum P values compared with healthy control. PRL values of hemodialysis women were also higher than that of women after renal transplantation.
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Affiliation(s)
- Kailu Zhang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Lanbo Zhao
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yadi Bin
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Miao Guo
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xue Zhou
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Min Li
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Lu Han
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Qiling Li
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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3
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Ren J, Huang Q, Lie X, Tong X, Yao Q, Zhou G. Kidney damage on fertility and pregnancy: A Mendelian randomization. PLoS One 2023; 18:e0288788. [PMID: 37478100 PMCID: PMC10361496 DOI: 10.1371/journal.pone.0288788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/03/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Low fertility and adverse pregnancy outcomes are commonly observed in women with chronic kidney disease (CKD). However, a causal relationship between low fertility and adverse pregnancy outcomes with CKD remains unclear. Besides, whether mild kidney dysfunction can affect fertility and pregnancy still needs exploration. Hence, this study aimed to investigate the causal effect of kidney damage on fertility and pregnancy using Mendelian randomization (MR). METHODS We first used two-sample MR to examine the effects of kidney damage on fertility and pregnancy. Next, we introduced the Bayesian model averaging MR analysis to detect major causal relationships and render the results robust. The genetic instruments and outcome data were derived from various large genome-wide association studies. RESULTS Adverse pregnancy outcomes: Our analyses supported a suggestive causal effect of CKD and estimated glomerular filtration rate (eGFR) rapid on stillbirth, with CKD having an odds ratio (OR) of 1.020 [95% confidence interval (CI) 1.002 to 1.038] and eGFR rapid having an OR of 1.026 (95% CI 1.004-1.048). We also discovered a suggestive causal effect of eGFR on spontaneous abortion, with an OR of 2.63 (95% CI 1.269 to 5.450). Moreover, increased urinary albumin-to-creatinine ratio (UACR) was regarded as a potential risk factor for pre-eclampsia (OR = 1.936; 95% CI 1.065 to 3.517) and gestational hypertension (OR = 1.700; 95% CI 1.002 to 2.886). Fertility assessment: The results indicated that eGFR and UACR had a suggestive causal relationship with the anti-Müllerian hormone level (eGFR beta: 1.004; UACR beta: 0.405). CONCLUSIONS Our study used MR to demonstrate a suggestive causal relationship between kidney damage and fertility and pregnancy. We reported that mild kidney dysfunction might be a risk factor for reduced fertility and adverse pregnancy outcomes. Dynamic renal detection may help preserve fertility and reduce the risk of pregnancy loss.
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Affiliation(s)
- Jin Ren
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- The First College of Clinical Medical, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qiuyan Huang
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- The First College of Clinical Medical, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaowei Lie
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Xingli Tong
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Qi Yao
- Department of Pathology and Pathophysiology, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Ge Zhou
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
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4
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Copur S, Berkkan M, Basile C, Cozzolino M, Kanbay M. Dialysis in Pregnancy: An Update Review. Blood Purif 2023; 52:686-693. [PMID: 37379824 DOI: 10.1159/000531157] [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: 03/20/2023] [Accepted: 05/11/2023] [Indexed: 06/30/2023]
Abstract
Chronic kidney disease and end-stage kidney disease (ESKD) are important public health problems with increased rates of morbidity, mortality, and social costs. Pregnancy is rare in patients with ESKD, with reduced fertility rates in women undergoing dialysis. Although current advances have led to an increase in live births in pregnant dialysis patients, this modality still has an increased risk of multiple adverse events in pregnant women. Despite these existing risks, large-scale studies investigating the management of pregnant women on dialysis are lacking, resulting in the absence of consensus guidelines for this patient group. In this review, we aimed to present the effects of dialysis during pregnancy. We first discuss pregnancy outcomes in dialysis patients and the development of acute kidney injury during pregnancy. Then, we discuss our recommendations for the management of pregnant dialysis patients, including the maintenance of pre-dialysis blood urea nitrogen levels, the ideal frequency and duration of hemodialysis sessions, as well as the modality of renal replacement therapies, the difficulty of maintaining peritoneal dialysis in the third trimester of pregnancy, and optimization of prepregnancy modifiable risk factors. Finally, we present our recommendations for future studies investigating dialysis among pregnant patients.
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Affiliation(s)
- Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Metehan Berkkan
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Carlo Basile
- Associazione Nefrologica Gabriella Sebastio, Martina Franca, Italy
| | - Mario Cozzolino
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milano, Italy
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
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Attini R, Cabiddu G, Ciabatti F, Montersino B, Carosso AR, Gernone G, Gammaro L, Moroni G, Torreggiani M, Masturzo B, Santoro D, Revelli A, Piccoli GB. Chronic kidney disease, female infertility, and medically assisted reproduction: a best practice position statement by the Kidney and Pregnancy Group of the Italian Society of Nephrology. J Nephrol 2023; 36:1239-1255. [PMID: 37354277 PMCID: PMC11081994 DOI: 10.1007/s40620-023-01670-4] [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] [Accepted: 05/01/2023] [Indexed: 06/26/2023]
Abstract
Fertility is known to be impaired more frequently in patients with chronic kidney disease than in the general population. A significant proportion of chronic kidney disease patients may therefore need Medically Assisted Reproduction. The paucity of information about medically assisted reproduction for chronic kidney disease patients complicates counselling for both nephrologists and gynaecologists, specifically for patients with advanced chronic kidney disease and those on dialysis or with a transplanted kidney. It is in this context that the Project Group on Kidney and Pregnancy of the Italian Society of Nephrology has drawn up these best practice guidelines, merging a literature review, nephrology expertise and the experience of obstetricians and gynaecologists involved in medically assisted reproduction. Although all medically assisted reproduction techniques can be used for chronic kidney disease patients, caution is warranted. Inducing a twin pregnancy should be avoided; the risk of bleeding, thrombosis and infection should be considered, especially in some categories of patients. In most cases, controlled ovarian stimulation is needed to obtain an adequate number of oocytes for medically assisted reproduction. Women with chronic kidney disease are at high risk of kidney damage in case of severe ovarian hyperstimulation syndrome, and great caution should be exercised so that it is avoided. The higher risks associated with the hypertensive disorders of pregnancy, and the consequent risk of chronic kidney disease progression, should likewise be considered if egg donation is chosen. Oocyte cryopreservation should be considered for patients with autoimmune diseases who need cytotoxic treatment. In summary, medically assisted reproduction is an option for chronic kidney disease patients, but the study group strongly advises extensive personalised counselling with a multidisciplinary healthcare team and close monitoring during the chosen medically assisted reproduction procedure and throughout the subsequent pregnancy.
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Affiliation(s)
- Rossella Attini
- Department of Obstetrics and Gynecology SC2U, Sant'Anna Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Gianfranca Cabiddu
- Nephrology, Department of Medical Science and Public Health, San Michele Hospital, G. Brotzu, University of Cagliari, Cagliari, Italy
| | - Francesca Ciabatti
- Department of Obstetrics and Gynecology SC2U, Sant'Anna Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Benedetta Montersino
- Department of Obstetrics and Gynecology SC2U, Sant'Anna Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Andrea Roberto Carosso
- Department of Obstetrics and Gynecology SC2U, Sant'Anna Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Giuseppe Gernone
- UOSVD di Nefrologia e Dialisi ASL Bari. P.O. "S. Maria degli Angeli", Putignano, Italy
| | - Linda Gammaro
- Nephrology, Ospedale Fracastoro San Bonifacio, San Bonifacio, Italy
| | - Gabriella Moroni
- Nephrology and Dialysis Division, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Massimo Torreggiani
- Néphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037, Le Mans, France
| | - Bianca Masturzo
- Division of Obstetrics and Gynaecology, Department of Maternal-Neonatal and Infant Health, Ospedale Degli Infermi, University of Turin, Biella, Italy
| | - Domenico Santoro
- Unit of Nephrology and Dialysis, Department of Clinical and Experimental Medicine, A.O.U. "G. Martino", University of Messina, 98125, Messina, Italy
| | - Alberto Revelli
- Department of Obstetrics and Gynecology SC2U, Sant'Anna Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Giorgina Barbara Piccoli
- Néphrologie et Dialyse, Centre Hospitalier Le Mans, 194 Avenue Rubillard, 72037, Le Mans, France.
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6
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Pregnancy and sex hormone changes after kidney transplant. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2023. [DOI: 10.1016/j.gine.2022.100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Jesudason S, Williamson A, Huuskes B, Hewawasam E. Parenthood with kidney failure: Answering questions patients ask about pregnancy. Kidney Int Rep 2022; 7:1477-1492. [PMID: 35812283 PMCID: PMC9263253 DOI: 10.1016/j.ekir.2022.04.081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/17/2022] [Accepted: 04/18/2022] [Indexed: 11/30/2022] Open
Abstract
Achieving parenthood can be an important priority for women and men with kidney failure. In recent decades, the paradigm has shifted toward greater support of parenthood, with advances in our understanding of risks related to pregnancy and improvements in obstetrical and perinatal care. This review, codesigned by people with personal experience of kidney disease, provides guidance for nephrologists on how to answer the questions most asked by patients when planning for parenthood. We focus on important issues that arise in preconception counseling for women receiving dialysis and postkidney transplant. We summarize recent studies reflecting pregnancy outcomes in the modern era of nephrology, obstetrical, and perinatal care in developed countries. We present visual aids to help clinicians and women navigate pregnancy planning and risk assessment. Key principles of pregnancy management are outlined. Finally, we explore outcomes of fatherhood in males with kidney failure.
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8
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Dumanski SM, Eckersten D, Piccoli GB. Reproductive Health in Chronic Kidney Disease: The Implications of Sex and Gender. Semin Nephrol 2022; 42:142-152. [PMID: 35718362 DOI: 10.1016/j.semnephrol.2022.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Chronic kidney disease (CKD) is frequently accompanied by reproductive health challenges in females and males alike. Progression of CKD is associated with escalating impairment of the hypothalamic-pituitary-gonadal axis, which facilitates evolving ovarian, testicular, and sexual dysfunction. Common clinical reproductive health complications in CKD include abnormal menstruation, impaired sexual health, and reduced fertility. Though sex-specific factors, such as sex hormones and gonadal function, have a strong influence on reproductive health outcomes in CKD, a person's gender and gendered experience also have important implications. Institutionalized gender, gendered perceptions of health, and health care-seeking behaviors, as well as adherence to medical care, all have critical effects on reproductive health in CKD. This review endeavors to explore the implications of both sex and gender on overall reproductive health in individuals living with CKD.
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Affiliation(s)
- Sandra M Dumanski
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada; Libin Cardiovascular Institute, Calgary, Canada; Alberta Kidney Disease Network, Alberta, Canada.
| | - Dag Eckersten
- Department of Nephrology, Lund University, Skane University Hospital, Malmo, Sweden
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9
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Female Reproductive and Gynecologic Considerations in Chronic Kidney Disease: Adolescence and Young Adulthood. Kidney Int Rep 2022; 7:152-164. [PMID: 35155855 PMCID: PMC8820991 DOI: 10.1016/j.ekir.2021.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 11/21/2022] Open
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10
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Dumanski SM, Anderson TJ, Nerenberg KA, Holroyd‐Leduc J, MacRae J, Raj SR, Metcalfe A, Ramesh S, Kalenga CZ, Sola D, Pajevic M, Ahmed SB. Anti-Müllerian hormone and vascular dysfunction in women with chronic kidney disease. Physiol Rep 2022; 10:e15154. [PMID: 35075809 PMCID: PMC8787421 DOI: 10.14814/phy2.15154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 12/04/2021] [Accepted: 12/07/2021] [Indexed: 04/17/2023] Open
Abstract
Young women with chronic kidney disease (CKD) have disproportionately increased risk of cardiovascular mortality. Reduced anti-Müllerian hormone (AMH) is linked to poor cardiovascular outcomes in the general population, but whether AMH is associated with increased cardiovascular risk in the high-risk CKD population is unknown. This study examined the association between AMH and vascular function, validated markers of cardiovascular risk, in women with CKD. An exploratory cross-sectional study was performed in 47 young women with CKD. Laboratory measurements of AMH were collected. Using standardized protocols, endothelial function was measured with brachial artery flow-mediated dilation and hyperemic velocity time integral. Arterial stiffness was measured with aortic augmentation index and pulse wave velocity. Multivariate linear regression analyses were utilized to evaluate the association between AMH levels and each measure of vascular health. Forty women (36 ± 7 years) with non-dialysis-dependent CKD and 7 women (38 ± 6 years) with dialysis-dependent CKD participated. AMH levels were inversely associated with age (p = 0.01) but not associated with eGFR (p = 0.59) or dialysis status (p = 0.97). AMH was associated with brachial artery flow-mediated dilation (R2 = 0.21 [p = 0.03]) and aortic augmentation index (R2 = 0.20 [p = 0.04]) in the non-dialysis-dependent participants, and with aortic augmentation index in all participants (R2 = 0.18 [p = 0.03]). No association between AMH and any measure of vascular function was demonstrated in the dialysis-dependent participants. AMH levels are associated with impaired vascular function in young women with CKD and may be an important marker of future cardiovascular risk. Further investigation into this female-specific cardiovascular risk factor is warranted in this high-risk population.
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Affiliation(s)
- Sandra M. Dumanski
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Alberta Kidney Disease NetworkCalgaryAlbertaCanada
| | - Todd J. Anderson
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
| | - Kara A. Nerenberg
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Department of Community Health SciencesUniversity of CalgaryCalgaryAlbertaCanada
- Department of Obstetrics and GynecologyFoothills Medical CenterUniversity of CalgaryCalgaryAlbertaCanada
| | - Jayna Holroyd‐Leduc
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Department of Community Health SciencesUniversity of CalgaryCalgaryAlbertaCanada
| | - Jennifer MacRae
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Alberta Kidney Disease NetworkCalgaryAlbertaCanada
| | - Satish R. Raj
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Department of Cardiac SciencesUniversity of CalgaryCalgaryAlbertaCanada
| | - Amy Metcalfe
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Department of Community Health SciencesUniversity of CalgaryCalgaryAlbertaCanada
- Department of Obstetrics and GynecologyFoothills Medical CenterUniversity of CalgaryCalgaryAlbertaCanada
| | - Sharanya Ramesh
- Faculty of MedicineUniversity of Toronto1 King’s College CircleTorontoOntarioCanada
| | - Cindy Z. Kalenga
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - Darlene Sola
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
| | - Milada Pajevic
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
| | - Sofia B. Ahmed
- Department of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular Institute of AlbertaCalgaryAlbertaCanada
- Alberta Kidney Disease NetworkCalgaryAlbertaCanada
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11
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Oliverio AL, Bramham K, Hladunewich MA. Pregnancy and CKD: Advances in Care and the Legacy of Dr Susan Hou. Am J Kidney Dis 2021; 78:865-875. [PMID: 34656369 DOI: 10.1053/j.ajkd.2021.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 07/13/2021] [Indexed: 11/11/2022]
Abstract
Dr Susan Hou began her illustrious nephrology career at a time when pregnancy in women with chronic kidney disease (CKD) was hazardous and actively discouraged. Her pioneering research in women's health provided much of the early outcome data that shaped our current understanding of CKD and pregnancy. Although many uncertainties regarding optimal management of this vulnerable patient group remain, recent decades have witnessed important advances and renewed interest in improving care for pregnant women with CKD. Many nephrologists have been inspired by Dr Hou's lifetime of work and are grateful for her generous collaborations. In this In Practice Review, we honor her legacy by providing an update of current literature and clinical management guidance in the context of a clinical case vignette that challenges us to consider the many complex aspects to the counseling and care of women with CKD who desire a pregnancy.
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Affiliation(s)
- Andrea L Oliverio
- Department of Internal Medicine, Division of Nephrology, University of Michigan, Ann Arbor, Michigan
| | - Kate Bramham
- Department of Women and Children's Health, King's College London, London, United Kingdom; Department of Renal Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Michelle A Hladunewich
- Divisions of Nephrology and Obstetrics, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario, Canada.
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12
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Vanni VS, Quartucci A, Rebecchi A, Privitera L, Limena A, Ventimiglia E, Viganò P, Candiani M, Salonia A, Papaleo E. Anti-Müllerian hormone concentration as an indicator of female general health status: a cross-sectional study. Reprod Biomed Online 2021; 44:119-126. [PMID: 34815158 DOI: 10.1016/j.rbmo.2021.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/31/2021] [Accepted: 08/18/2021] [Indexed: 11/26/2022]
Abstract
RESEARCH QUESTION To evaluate the correlation between clinical and hormonal parameters and comorbidity burden in Caucasian women presenting for fertility treatment. DESIGN Monocentric cross-sectional study including a cohort of 3163 Caucasian women seeking medical care for fertility treatment. All patients underwent centralized laboratory testing for hormonal assessment. Complete clinical and laboratory data from the entire cohort were retrospectively analysed. Comorbidity burden score was assessed by the Charlson Comorbidity Index (CCI; categorized as 0 versus 1 versus ≥2). RESULTS Descriptive statistics and regression models tested the associations between clinical and laboratory parameters and CCI. Among the entire cohort of patients, a CCI = 0 was found in 2977 women (94.1%), and CCI = 1 and CCI ≥2 were found in 113 (3.6%) and 73 (2.3%) patients, respectively. Age (P = 0.009), gravidity (P = 0.001), anti-Müllerian hormone (AMH, P < 0.001) and TSH (P = 0.003) values were significantly different among CCI groups. In regression models, age at presentation and AMH emerged as independent indicators of CCI ≥ 1. Age at presentation <36 years (odds ratio [OR] 1.742, 95% confidence interval [CI] 1.284-2.364) and an AMH concentration ≤2.3 ng/ml (OR 1.864, 95% CI 1.29-2.69) were the most informative cut-off values for CCI ≥ 1 in the study population. CONCLUSIONS A younger age at presentation and lower AMH concentrations are significant independent indicators of decreased general health in women requiring clinical evaluation for fertility treatment. As observed for sperm parameters in men, AMH might serve as a proxy of women's general health status.
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Affiliation(s)
- Valeria Stella Vanni
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan, Italy; Vita-Salute San Raffaele University, Via Olgettina 58, Milan, Italy
| | - Antonio Quartucci
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan, Italy; Vita-Salute San Raffaele University, Via Olgettina 58, Milan, Italy
| | - Agnese Rebecchi
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan, Italy; Vita-Salute San Raffaele University, Via Olgettina 58, Milan, Italy
| | - Laura Privitera
- Fertility Centre, Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 48, Milan, Italy
| | - Alessia Limena
- Vita-Salute San Raffaele University, Via Olgettina 58, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS San Raffaele Hospital, Via Olgettina 60, Milan, Italy; Department of Surgical Sciences, Uppsala University Uppsala, Sweden
| | - Paola Viganò
- Reproductive Sciences Laboratory, Obstetrics and Gynaecology Unit, San Raffaele Scientific Institute, Via Olgettina 48, Milan, Italy
| | - Massimo Candiani
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan, Italy
| | - Andrea Salonia
- Vita-Salute San Raffaele University, Via Olgettina 58, Milan, Italy; Division of Experimental Oncology/Unit of Urology, URI, IRCCS San Raffaele Hospital, Via Olgettina 60, Milan, Italy
| | - Enrico Papaleo
- Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan, Italy; Fertility Centre, Obstetrics and Gynaecology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 48, Milan, Italy.
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13
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Fertility and Pregnancy in End Stage Kidney Failure Patients and after Renal Transplantation: An Update. TRANSPLANTOLOGY 2021. [DOI: 10.3390/transplantology2020010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Sexual life and fertility are compromised in end stage kidney disease both in men and in women. Successful renal transplantation may rapidly recover fertility in the vast majority of patients. Pregnancy modifies anatomical and functional aspects in the kidney and represents a risk of sensitization that may cause acute rejection. Independently from the risks for the graft, pregnancy in kidney transplant may cause preeclampsia, gestational diabetes, preterm delivery, and low birth weight. The nephrologist has a fundamental role in correct counseling, in a correct evaluation of the mother conditions, and in establishing a correct time lapse between transplantation and conception. Additionally, careful attention must be given to the antirejection therapy, avoiding drugs that could be dangerous to the newborn. Due to the possibility of medical complications during pregnancy, a correct follow-up should be exerted. Even if pregnancy in transplant is considered a high risk one, several data and studies document that in the majority of patients, the long-term follow-up and outcomes for the graft may be similar to that of non-pregnant women.
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14
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Oliverio AL, Hladunewich MA. End-Stage Kidney Disease and Dialysis in Pregnancy. Adv Chronic Kidney Dis 2020; 27:477-485. [PMID: 33328064 DOI: 10.1053/j.ackd.2020.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022]
Abstract
End-stage kidney disease is associated with low fertility, with rates of conception in women on dialysis estimated at 1/100th of the general population. However, live birth rates are increasing over time in women on hemodialysis, whereas they remain lower and static in women on peritoneal dialysis. Intensification of hemodialysis, targeting a serum blood urea nitrogen <35 mg/dL or 36 hours of dialysis per week in women with no residual kidney function, is associated with improved live birth rates and longer gestational age. Even in intensively dialyzed cohorts, rates of prematurity and need for neonatal intensive care are high, upwards of 50%. Although women on peritoneal dialysis in pregnancy do not appear to be at increased risk of delivering preterm compared with those on hemodialysis, their infants are more likely to be small for gestational age. As such, hemodialysis has emerged as the preferred dialysis modality in pregnancy. Provision of specialized nephrology, obstetric, and neonatal care is necessary to manage these complex pregnancies and family planning counseling should be offered to all women with end-stage kidney disease.
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15
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Haninger-Vacariu N, Herkner H, Lorenz M, Säemann M, Vychytil A, Jansen M, Marculescu R, Kramar R, Sunder-Plassmann G, Schmidt A. Exclusion of pregnancy in dialysis patients: diagnostic performance of human chorionic gonadotropin. BMC Nephrol 2020; 21:70. [PMID: 32111190 PMCID: PMC7049197 DOI: 10.1186/s12882-020-01729-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 02/19/2020] [Indexed: 12/19/2022] Open
Abstract
Background A positive pregnancy test in acute or chronically ill patients has implications for the use of potentially mutagenic or teratogenic products in urgent medical therapies such as the use of chemotherapies or therapies with immunosuppressants, for anesthesia, and for time-sensitive indications like urgent surgery or organ Transplantation. Despite a lack of evidence, it is currently believed that human chorionic gonadotropin serum concentrations are always elevated in female dialysis patients even without pregnancy. It is also believed that human chorionic gonadotropin cannot be used to confirm or exclude pregnancy. Methods Human chorionic gonadotropin was examined in female dialysis patients (18–50 years of age), and was classified as positive above 5 mlU/ml. In addition, fertility status was determined. For an enhanced index test, the cut-off of 5 mIU/ml was used for potentially fertile patients and 14 mIU/ml for infertile patients to calculate diagnostic test accuracy. The ideal cut-off for human chorionic gonadotropin was estimated using Liu’s method with bootstrapped 95% confidence intervals. Predictors of human chorionic gonadotropin increase were analyzed using multivariable linear regression. Results Among 71 women, two (2.8%) were pregnant, 46 (64.8%) potentially fertile, and 23 (32.4%) infertile. We observed human chorionic gonadotropin concentrations > 5 mIU/ml in 10 patients, which had a sensitivity of 100% (95% confidence interval: 100 to 100), a specificity of 86% (95% confidence interval: 77 to 94), a positive predictive value of 17% (95% confidence interval: 8 to 25) and a negative predictive value of 100% (95% confidence interval: 100 to 100) for the diagnosis of pregnancy. Using a cut-off > 14 mIU/ml for infertile patients or the exclusion of infertile patients increased specificity to 93% or 98%, respectively. The ideal cut-off was 25 mIU/ml (95% confidence interval: 17 to 33). Pregnancy and potential fertility, but not age, were independent predictors of human chorionic gonadotropin. Conclusion Human chorionic gonadotropin is elevated > 5mIU/ml in 14.5% of non-pregnant dialysis patients of child-bearing age. In potentially fertile women, this cut-off can be used to exclude pregnancy. In case of an unknown fertility status, the ideal human chorionic gonadotropin cut-off was 25 mIU/ml.
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Affiliation(s)
- Natalja Haninger-Vacariu
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Währingergürtel 18-20, 1090, Vienna, Austria.
| | - Harald Herkner
- Department of Emergency Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | | | - Marcus Säemann
- Department of Medicine VI, Wilhelminenspital, 1160, Vienna, Austria.,Sigmund Freud Private University, Medical School, 1020, Vienna, Austria
| | - Andreas Vychytil
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Währingergürtel 18-20, 1090, Vienna, Austria
| | - Martin Jansen
- Division of Gastroenterology and Nephrology, Department of Medicine I, Hospital St. John of God, 1020, Vienna, Austria
| | - Rodrig Marculescu
- Department of Laboratory Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | - Reinhard Kramar
- Austrian Dialysis and Transplant Registry, 4532, Rohr im Kremstal, Austria
| | - Gere Sunder-Plassmann
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Währingergürtel 18-20, 1090, Vienna, Austria
| | - Alice Schmidt
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Währingergürtel 18-20, 1090, Vienna, Austria
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16
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Wiles K, Anckaert E, Holden F, Grace J, Nelson-Piercy C, Lightstone L, Chappell LC, Bramham K. Anti-Müllerian hormone concentrations in women with chronic kidney disease. Clin Kidney J 2019; 14:537-542. [PMID: 33623676 PMCID: PMC7886554 DOI: 10.1093/ckj/sfz164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/23/2019] [Indexed: 01/01/2023] Open
Abstract
Background Serum anti-Müllerian hormone (AMH) is a biomarker of ovarian reserve. There are limited data to guide the clinical interpretation of AMH in women with chronic kidney disease (CKD). The purpose of this study was to examine AMH concentrations in women with CKD compared with women without CKD. Methods We conducted a prospective cohort study of serum AMH concentrations in 163 non-pregnant women with CKD. Serum AMH concentrations were compared with age-specific AMH centiles from 887 healthy female controls. Results Participants included 30 women with Stage 1 CKD, 37 women with Stage 2 CKD, 26 women with Stage 3a CKD, 31 women with Stage 3b CKD and 39 women with Stages 4 and 5 CKD. The median estimated glomerular filtration rate (eGFR) was 51 (interquartile range 31–80) mL/min/1.73 m2. Serum AMH concentrations were lower in all CKD stages compared with women without CKD. Women ages 20–24 years with CKD had comparable serum AMH concentrations (median 1.959 ng/mL) to women ages 35–39 years without CKD (median 1.995 ng/mL). There was no evidence that eGFR was an independent modifier of serum AMH concentrations. More than half of women with CKD (58%) were predicted to have a low response to gonadotrophin stimulation. Conclusions Women with CKD have a lower ovarian reserve and are predicted to have a lower ovarian response to gonadotrophin stimulation compared with women without CKD of a similar age. Women with CKD who fail to conceive within 6 months of regular unprotected intercourse should be considered for fertility assessment and intervention.
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Affiliation(s)
- Kate Wiles
- Department of Women and Children's Health, King's College London, London, UK.,Guy's and St Thomas NHS Foundation Trust, London, UK
| | - Ellen Anckaert
- Laboratory of Hormonology and Tumour Markers, Universitair Ziekenhuis Brussel, Free University of Brussels, Brussels, Belgium
| | - Francesca Holden
- Department of Renal Medicine, King's College Hospital NHS Foundation Trust, London, UK
| | - Jan Grace
- Guy's and St Thomas NHS Foundation Trust, London, UK
| | - Catherine Nelson-Piercy
- Guy's and St Thomas NHS Foundation Trust, London, UK.,Imperial Healthcare NHS Trust, London, UK
| | - Liz Lightstone
- Imperial Healthcare NHS Trust, London, UK.,Faculty of Medicine, Centre for Inflammatory Disease, Imperial College London, London, UK
| | - Lucy C Chappell
- Department of Women and Children's Health, King's College London, London, UK.,Guy's and St Thomas NHS Foundation Trust, London, UK
| | - Kate Bramham
- Department of Women and Children's Health, King's College London, London, UK.,Department of Renal Medicine, King's College Hospital NHS Foundation Trust, London, UK
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17
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Hall M. Chronic renal disease and antenatal care. Best Pract Res Clin Obstet Gynaecol 2019; 57:15-32. [DOI: 10.1016/j.bpobgyn.2018.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/15/2018] [Accepted: 10/23/2018] [Indexed: 10/28/2022]
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18
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Jamil Z, Shahid S, Baig E, Ahmad R, Subhani F, Fatima SS. Serum anti mullerian hormone and renalase levels in predicting the risk of preeclampsia. Taiwan J Obstet Gynecol 2019; 58:188-191. [PMID: 30910136 DOI: 10.1016/j.tjog.2019.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The aim of the study was to explore the association of serum AMH and Renalase with the risk of preeclampsia thereby assessing them as screening tools, reducing the risk of gravid consequences of preeclampsia. MATERIALS AND METHODS This cross-sectional study recruited n = 95 pregnant women between 14 and 32 gestational weeks. They were categorized as a) women with gestational hypertension (n = 45); b) women with pre-eclampsia (n = 20) and c) normotensive pregnant women (n = 30) according to the ACOG criteria. Anthropometrics data and blood and urine samples were collected. AMH and Renalase levels were measured by ELISA assay. RESULTS The mean age of study cohort was 27.3 ± 6.2 year and weight was 65.1 ± 14.1 kg. Blood pressures were significantly higher in pre-eclamptic patients versus both the gestational hypertensive females and controls (p < 0.05). AMH was found to be significantly higher in controls but no difference was observed between gestational hypertensive and pre-eclamptic patients. No difference was seen for serum Renalase among the three groups (p > 0.05). AMH showed a negative weak correlation with diastolic blood pressure (r = -0.272; p = 0.008) that remained significant even after adjustment (r = -0.236; p = 0.023) whereas Renalase did not show any difference (r = -0.051; p > 0.05). Females with low levels of AMH were 1.07 times at risk of developing hypertension even after adjustment for age and BMI (p < 0.05). CONCLUSION Low AMH levels may lead to hypertension in pregnancy suggesting a role in detecting vascular diseases as well as its effect on ovarian aging. However, further research is required to establish a causal relationship.
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Affiliation(s)
- Zehra Jamil
- Department of Biological & Biomedical Sciences, Aga Khan University, Pakistan
| | - Sana Shahid
- Department of Physiology, Sir Syed College of Medical Sciences for Girls, Pakistan
| | - Erum Baig
- Medical Students, Aga Khan University, Pakistan
| | - Rida Ahmad
- Medical Students, Aga Khan University, Pakistan
| | | | - Syeda Sadia Fatima
- Department of Biological & Biomedical Sciences, Aga Khan University, Pakistan.
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19
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Fayed A, Soliman A, Naguib M, Soliman M, Salaheldin M. Ovarian reserve in an Egyptian cohort with end-stage kidney disease on hemodialysis and after successful kidney transplantation: a prospective study. Int Urol Nephrol 2019; 51:737-743. [PMID: 30737642 DOI: 10.1007/s11255-019-02089-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 01/28/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Women with chronic kidney disease commonly have menstrual irregularities and fertility abnormalities. Antimüllerian hormone (AMH) and antral follicle count (AFC) are well-recognized indicators of ovarian reserve. AIMS To assess AMH level and total AFC in women who are on hemodialysis and after successful kidney transplantation (KTx). METHODS Sixty women with end-stage kidney disease (ESKD) on regular hemodialysis were included in this study with 20 patients of them were going to have renal transplant. Fifty age-matched healthy females were enrolled as control. Serum AMH level was measured in all participants once and in transplant patients four times (before surgery, and at 1, 6, and 12 months after surgery). AFC was evaluated once in all subjects and in transplant patients twice (before and 1 year after surgery). RESULTS ESKD patients had significantly lower AMH concentration and AFC than healthy controls (1.8 ± 1.2 vs. 3.5 ± 1.7 ng/ml, p < 0.001) and (12 ± 4.6 vs. 17.4 ± 4.3, p < 0.001), respectively. In the subgroup transplant patients, AMH level decreased significantly from (1.7 ± 1.3 ng/ml) before Ktx to (1.5 ± 1.2 ng/ml, p = 0.001) at 1 month, (1.1 ± 0.9 ng/ml, p < 0.001) at 6 months, (0.9 ± 0.8 ng/ml, p < 0.001) at 1 year after Ktx. Also, total AFC declined in transplant females from (11.1 ± 4.5) before KTx to (6.6 ± 3.4) after KTx (p < 0.001). CONCLUSIONS Women with ESKD who are on hemodialysis have lower ovarian reserve than healthy females. Moreover, renal transplantation was associated with reduction in AMH level and AFC.
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Affiliation(s)
- Ahmed Fayed
- Nephrology Unit, Internal Medicine Department, School of Medicine, Cairo University, Cairo, Egypt.
| | - Ahmed Soliman
- Nephrology Unit, Internal Medicine Department, School of Medicine, Cairo University, Cairo, Egypt
| | - Mervat Naguib
- Endocrinology Unit, Internal Medicine Department, School of Medicine, Cairo University, Cairo, Egypt
| | - Mahmoud Soliman
- Gynecology and Obstetrics Department, Cairo University School of Medicine, Cairo University, Cairo, Egypt
| | - M Salaheldin
- Urology Department, Cairo University School of Medicine, Cairo University, Cairo, Egypt
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20
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Dumanski SM, Ahmed SB. Fertility and reproductive care in chronic kidney disease. J Nephrol 2019; 32:39-50. [PMID: 30604149 DOI: 10.1007/s40620-018-00569-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 12/12/2018] [Indexed: 12/20/2022]
Abstract
In both women and men, chronic kidney disease (CKD) is associated with decreased fertility. Though a multitude of factors contribute to the reduction in fertility in this population, progressively impaired function of the hypothalamic-pituitary-gonadal axis appears to play a key role in the pathophysiology. There is limited research on strategies to manage infertility in the CKD population, but intensive hemodialysis, kidney transplantation, medication management and assisted reproductive technologies (ART) have all been proposed. Though fertility and reproductive care are reported as important elements of care by CKD patients themselves, few nephrology clinicians routinely address fertility and reproductive care in clinical interactions. Globally, the average age of parenthood is increasing, with concurrent growth and expansion in the use of ART. Coupled with an increasing prevalence of CKD in women and men of reproductive age, the importance of understanding fertility and reproductive technologies in this population is highlighted. This review endeavors to explore the female and male factors that affect fertility in the CKD population, as well as the evidence supporting strategies for reproductive care.
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Affiliation(s)
- Sandra Marie Dumanski
- Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada. .,Department of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada. .,Libin Cardiovascular Institute of Alberta, 1403 29th St NW, Calgary, AB, T2N 2T9, Canada. .,Alberta Kidney Disease Network, 1403 29th St NW, Calgary, AB, T2N 2T9, Canada.
| | - Sofia Bano Ahmed
- Department of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada.,Libin Cardiovascular Institute of Alberta, 1403 29th St NW, Calgary, AB, T2N 2T9, Canada.,Alberta Kidney Disease Network, 1403 29th St NW, Calgary, AB, T2N 2T9, Canada
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