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Haghpanah A, Kamran H, Irani D, Kohansal E, Rahmanian M, Defidio L, Dehghani A, Jahanabadi Z, Askarpour MR. Has the COVID-19 pandemic affected ureteral stone management in pregnant women? A retrospective single-center study. Urologia 2024; 91:543-549. [PMID: 38142409 DOI: 10.1177/03915603231216154] [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] [Indexed: 12/26/2023]
Abstract
INTRODUCTION This study aimed to evaluate the effect of coronavirus disease (COVID-19) on the patients' referral in the pregnant population and also investigate each treatment approach's advantages and disadvantages for acute renal colic in pregnancy. METHODS In this retrospective study, we included all pregnant women with ureteral stones referred to a referral center between January 2019 and March 2021. RESULTS Among 53 pregnant women, 18 (33.9%) were on conservative therapy, which passed the stone without any complications. Double J stent or nephrostomy tube insertion was done for 24 patients (45.2%). Seventeen of these patients (70.8%) presented post-surgical complications, including hematuria (29.2%), pyelonephritis (20.8%), and lower urinary tract symptoms (20.8%). Transurethral lithotripsy (TUL) was done in 11 patients (20.7%). Only one of these patients developed hematuria following TUL. Thus, in our population study, double J stent or nephrostomy insertion was associated with a higher chance of postoperative complications than TUL (p-value = 0.001). Thirty-six patients were referred within 13 months before the entry of COVID-19, while 17 were referred during a similar approximate duration after the COVID-19 entry into the country. Only the initial presentation had a significant difference between these two periods (p-value = 0.034). CONCLUSIONS When conservative treatment fails, we recommend TUL as the second-line treatment over temporary procedures, such as double J stent or nephrostomy insertion. Of note, in a group of patients with an emergent clinical setting, including active infection, deteriorating renal function, signs of preterm labor, solitary kidney, etc., double J or nephrostomy tube insertion remains the preferred management method for its fast resolution of obstruction and infection. Besides, a decrease in visits with an increase in complicated cases after COVID-19 was observed, maybe due to a delay in referring.
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Affiliation(s)
- Abdolreza Haghpanah
- Endourology Ward, Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hooman Kamran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Dariush Irani
- Endourology Ward, Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Erfan Kohansal
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Rahmanian
- Medical School, MPH Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Anahita Dehghani
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Jahanabadi
- Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
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Ha AS, Wang C, Haas C, Miles C, Katz M, Shah O. Differences in management of pregnant women with obstructing infected ureteral stones: A population-based analysis. Int J Urol 2023; 30:196-202. [PMID: 36305808 DOI: 10.1111/iju.15087] [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: 03/22/2022] [Accepted: 10/12/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Obstructing ureteral stones complicated by urinary tract infection are urologic emergencies that require prompt decompression. We explore the association of pregnancy with rates of and delays in decompression in a cohort of women of reproductive age. METHODS Using the National Inpatient Sample from 2010 to 2015, a cross-sectional, descriptive analysis of women of reproductive age (15 to 44 years old) diagnosed with obstructing ureteral stones and urinary tract infection was performed and stratified by pregnancy status. Survey-weighted regression models were used to assess the association of pregnancy on decompression, delays in decompression, and hospital length of stay. Additional exploratory analyses on the association of timing and type of decompression with maternal-fetal outcomes were performed. RESULTS A weighted total of 38 783 hospitalizations were identified, with 6.1% of admissions occurring in pregnant women. On multivariable regression, pregnant women with obstructing ureteral stones and urinary tract infection were 38% less likely of undergoing decompression (adjusted OR: 0.62; p < 0.001) compared with nonpregnant women. Among those decompressed, pregnant women had greater odds of delayed decompression (adjusted OR: 2.28; p < 0.001) and longer length of stay (adjusted IRR: 1.11; p = 0.007). Delayed decompression among pregnant women was associated with increased rates of C-section, early or threatened labor, fetal distress, and umbilical cord complications. CONCLUSIONS Overall, pregnant women had reduced odds of decompression, as well as increased odds of delayed decompression, when compared with nonpregnant women of reproductive age. Delays in decompression among pregnant women were also associated with increased maternal and fetal complications.
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Affiliation(s)
- Albert S Ha
- Department of Urology, Columbia University Irving Medical Center, New York, New York, USA
| | - Connie Wang
- Department of Urology, Columbia University Irving Medical Center, New York, New York, USA
| | - Christopher Haas
- Department of Urology, Columbia University Irving Medical Center, New York, New York, USA
| | - Caleb Miles
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Matthew Katz
- Department of Urology, Columbia University Irving Medical Center, New York, New York, USA.,Department of Urology, Post-Research Completion Affiliation: New York University, New York, New York, USA
| | - Ojas Shah
- Department of Urology, Columbia University Irving Medical Center, New York, New York, USA
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Salehi-Pourmehr H, Tayebi S, DalirAkbari N, Ghabousian A, Tahmasbi F, Rahmati F, Naseri A, Hajebrahimi R, Mehdipour R, Hemmati-Ghavshough M, Mostafaei A, Hajebrahimi S. Management of urolithiasis in pregnancy: A systematic review and meta-analysis. Scand J Surg 2023:14574969221145774. [PMID: 36692055 DOI: 10.1177/14574969221145774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
PURPOSE Management of nephrolithiasis is unique in pregnancy and requires multidisciplinary care. To identify the effectiveness or safety of temporary drainage or definitive treatment methods to manage urolithiasis in pregnancy. METHODS The search strategy aimed to find both published and unpublished studies was conducted in August 2021. Studies published in any language on any date were considered for inclusion. RESULTS Of a total of 3349 publications, 36 studies were included in our qualitative evaluation and 32 studies in the quantitative synthesis. The commonly reported method was stent insertion (n = 29 studies), pneumatic (n = 12), laser (n = 9) lithotripsy, and stone removal using any devices (basket, grasper, or forceps) (n = 11). In seven studies, the authors reported the outcomes of conservative management, and the results showed that the stone-free rate is 54%, and symptom relief occurred in 62% of women. Seven eligible studies reported that 79.9% of urolithiasis were expulsed through stent insertion, while this rate was 94.6% among percutaneous nephrostomy use in two included studies, 88.5% for pneumatic lithotripsy (n = 7 studies), and 76.4% for laser lithotripsy (n = 4 studies), or 95.4% for stone removal method. In addition, adverse events were reported in less than 10% of pregnant women. CONCLUSIONS The results showed that stent, pneumatic or laser lithotripsy, and ureteroscopic stone removal were the commonest used methods in the included studies. They can be effective and safe treatment approaches without major maternal or neonatal complications, and could be introduced as an effective and safe therapeutic method for urolithiasis during pregnancy. However, most of the included studies had moderate quality according to critical appraisal checklists. Further prospective studies are needed to reach a conclusion.
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Affiliation(s)
- Hanieh Salehi-Pourmehr
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sona Tayebi
- Urology Department, Ahvaz Jundishapur University of Medical Sciences, Ahwaz, Iran
| | - Nooriyeh DalirAkbari
- Urology Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Ghabousian
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fateme Tahmasbi
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Rahmati
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirreza Naseri
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reyhaneh Hajebrahimi
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, IranStudent Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Robab Mehdipour
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Hemmati-Ghavshough
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Mostafaei
- Research Center for Evidence-Based-Medicine Faculty of Medicine Tabriz University of Medical Sciences Azadi Street Golgasht Avenue Tabriz 5166/15731 East Azarbaijan Iran
| | - Sakineh Hajebrahimi
- Professor of Urology Research Center for Evidence-Based-Medicine Faculty of Medicine Tabriz University of Medical Sciences Azadi Street Golgasht Avenue Tabriz 5166/1573 East Azarbaijan Iran
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Lin Y, Xu Z, Ding X, Chen L, Dai K. Development and validation of a clinical diagnostic model for pregnant women with renal colic in the emergency department in China: a protocol for a retrospective cohort study. BMJ Open 2022; 12:e056510. [PMID: 35501078 PMCID: PMC9062803 DOI: 10.1136/bmjopen-2021-056510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 04/16/2022] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Urolithiasis affects many people throughout their lives. Among the maternal population, although the morbidity of acute urolithiasis in pregnant women is unremarkable, it is the leading cause of hospitalisation during pregnancy. There is no effective clinical diagnostic tool to help doctors diagnose diseases. Our primary aim was to develop and validate a clinical prediction model based on statistical methods to predict the probability of having disease in pregnant women who visited the emergency department because of urolithiasis-induced colic. METHODS AND ANALYSIS We will use multivariate logistic regression analysis to build a multivariate regression linear model. A receiver operating characteristic curve plot and calibration plot will be used to measure the discrimination value and calibration value of the model, respectively. We will also use least absolute shrinkage and selection operator regression analysis combined with logistic regression analysis to select predictors and construct the multivariate regression model. The model will be simplified to an application that has been reported before, and users will only need to enter their clinical parameters so that risk probability is automatically derived. ETHICS AND DISSEMINATION The review and approval documents of the clinical research ethics committee have been received from the ethics committee of our hospital (The Third Affiliated Hospital of Wenzhou Medical University). We will disseminate research findings through presentations at scientific conferences and publication in peer-reviewed journals.
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Affiliation(s)
- YuZhan Lin
- Department of Clinical Laboratory, Ruian People's Hospital, Ruian, China
| | - ZhiKai Xu
- Department of Ultrasound Imaging, Ruian People's Hospital, Ruian, China
| | - XiangCui Ding
- Gynecology Department, Ruian People's Hospital, Ruian, China
| | - Lei Chen
- Department of Clinical Laboratory, Ruian People's Hospital, Ruian, China
| | - KangWei Dai
- Department of Clinical Laboratory, Ruian People's Hospital, Ruian, China
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Radu VD, Vasilache IA, Costache RC, Scripcariu IS, Nemescu D, Carauleanu A, Nechifor V, Groza V, Onofrei P, Boiculese L, Socolov D. Pregnancy Outcomes in a Cohort of Patients Who Underwent Double-J Ureteric Stenting-A Single Center Experience. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:619. [PMID: 35630036 PMCID: PMC9147179 DOI: 10.3390/medicina58050619] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Minimally invasive procedures, such as double-J ureteric stenting, could be a promising therapeutic alternative to conservative management of obstructive urinary tract pathology. We aimed to evaluate the safety and effectiveness of double-J ureteric stenting in pregnant women with ureterohydronephrosis or urolithiasis, along with their infectious complications, and to assess the pregnancy outcomes of this cohort of patients in comparison with a control group. Materials and Methods: This observational retrospective study included 52 pregnant patients who underwent double-J ureteric stenting for urologic disorders in the Urology Department of ‘C.I. Parhon’ University Hospital, and who were followed up at a tertiary maternity hospital- ‘Cuza-Voda’, Iasi, Romania. The control group (63 patients) was randomly selected from the patient’s cohort who gave birth in the same time frame at the maternity hospital, without urinary pathology. Clinical, sonographic, and laboratory variables were examined. Descriptive statistics, non-parametric tests, and a one-to-one propensity score-matched analysis were used to analyze our data. Results: The univariate analysis indicated a significant statistical difference between the control group and the interventional group regarding maternal age (p = 0.018), previous maternal history of renal colic (p = 0.005) or nephrolithiasis (p = 0.002). After applying the propensity score-matched analysis, cesarean delivery rates (p < 0.001), preterm labour (p = 0.039), premature rupture of membranes (p = 0.026), preterm birth rates (p = 0.002), and post-partum UTI rates (p = 0.012) were significantly different between the control group and the matched treatment group. Ureterohydronephrosis, whether simple (n = 37; 71.2%) or infected (n = 13; 25%), was the main indication for double-J ureteric stenting. Complications such as pain (n = 21; 40.3%), stent migration (n = 3; 5.76%) or encrustation (n = 2; 3.84%), as well as reflux pyelonephritis (n = 2; 3.84%) and gross hematuria (n = 1; 1.92%) were recorded during follow-up. Conclusions: Our results show that double-J stenting is a safe and effective treatment option for pregnant patients with obstructive urological disorders.
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Affiliation(s)
- Viorel Dragos Radu
- Urology Department, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (V.D.R.); (R.-C.C.)
- Urology Department, ‘C.I. Parhon’ University Hospital, 700115 Iasi, Romania;
| | - Ingrid-Andrada Vasilache
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
| | - Radu-Cristian Costache
- Urology Department, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (V.D.R.); (R.-C.C.)
- Urology Department, ‘C.I. Parhon’ University Hospital, 700115 Iasi, Romania;
| | - Ioana-Sadiye Scripcariu
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
| | - Dragos Nemescu
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
| | - Alexandru Carauleanu
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
| | - Valentin Nechifor
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
| | - Veaceslav Groza
- Urology Department, ‘C.I. Parhon’ University Hospital, 700115 Iasi, Romania;
| | - Pavel Onofrei
- Morphofunctional Sciences II Department, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Lucian Boiculese
- Medical Informatics and Biostatistics Department, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Demetra Socolov
- Department of Obstetrics and Gynecology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.-S.S.); (D.N.); (A.C.); (V.N.); (D.S.)
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Scurt FG, Morgenroth R, Bose K, Mertens PR, Chatzikyrkou C. Pr-AKI: Acute Kidney Injury in Pregnancy – Etiology, Diagnostic Workup, Management. Geburtshilfe Frauenheilkd 2022; 82:297-316. [PMID: 35250379 PMCID: PMC8893985 DOI: 10.1055/a-1666-0483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 10/09/2021] [Indexed: 10/29/2022] Open
Abstract
AbstractDespite significant improvements in inpatient and outpatient management, pregnancy-related acute kidney injury (Pr-AKI) remains an important risk factor for early and late maternal and
fetal morbidity and mortality. There is a discrepancy between the incidence of Pr-AKI in developing and in developed countries, with the former experiencing a decrease and the latter an
increase in Pr-AKI in recent decades. Whereas septic and hemorrhagic complications predominated in the past, nowadays hypertensive disorders and thrombotic microangiopathy are the leading
causes of Pr-AKI. Modern lifestyles and the availability and widespread use of in-vitro fertilization techniques in industrialized countries have allowed more women of advanced age to become
pregnant. This has led to a rise in the percentage of high-risk pregnancies due to the disorders and comorbidities inherent to or accompanying aging, such as diabetes, arterial hypertension
and preexisting chronic kidney disease. Last but not least, the heterogeneity of symptoms, the often overlapping clinical and laboratory characteristics and the pathophysiological changes
related to pregnancy make the diagnosis and management of Pr-AKI a difficult and challenging task for the treating physician. In addition to general supportive management strategies such as
volume substitution, blood pressure control, prevention of seizures or immediate delivery, each disease entity requires a specific therapy to reduce maternal and fetal complications. In this
review, we used the current literature to provide a summary of the physiologic and pathophysiologic changes in renal physiology which occur during pregnancy. In the second part, we present
common and rare disorders which lead to Pr-AKI and provide an overview of the available treatment options.
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Affiliation(s)
- Florian G. Scurt
- Klinik für Nieren- und Hochdruckerkrankungen, Diabetologie und Endokrinologie, Medizinische Fakultät der Otto-von-Guericke-Universität, Magdeburg, Germany
| | - Ronnie Morgenroth
- Klinik für Nieren- und Hochdruckerkrankungen, Diabetologie und Endokrinologie, Medizinische Fakultät der Otto-von-Guericke-Universität, Magdeburg, Germany
| | - Katrin Bose
- Universitätsklinik für Gastroenterologie, Hepatologie und Infektiologie, Medizinische Fakultät der Otto-von-Guericke-Universität, Magdeburg, Germany
| | - Peter R. Mertens
- Klinik für Nieren- und Hochdruckerkrankungen, Diabetologie und Endokrinologie, Medizinische Fakultät der Otto-von-Guericke-Universität, Magdeburg, Germany
| | - Christos Chatzikyrkou
- PHV-Dialysezentrum, Halberstadt, Germany
- Klinik für Nephrologie, Medizinische Hochschule Hannover, Hannover, Germany
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He MM, Lin XT, Lei M, Xu XL, He ZH. Does delaying ureteral stent placement lead to higher rates of preoperative acute pyelonephritis during pregnancy? World J Clin Cases 2022; 10:802-810. [PMID: 35127896 PMCID: PMC8790458 DOI: 10.12998/wjcc.v10.i3.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/28/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pregnancy with renal colic may cause pyelonephritis, decreased renal function, systemic infection and even shock in pregnant women, and cause premature birth and other adverse pregnancy outcomes. When surgery is necessary, the relationship between timing of the operation and the outcome of the mother and child are not known.
AIM To investigate the association between time to ureteral stent placement and clinical outcomes of patients with renal colic during pregnancy.
METHODS In this retrospective study, pregnant women with renal colic who underwent surgery were studied. Maternal preoperative acute pyelonephritis (PANP), pregnancy outcome, and length of hospital stay (LOS) were compared between the two groups.
RESULTS 100 patients were included in the analysis, median age was 30 years. Median time to ureteral stent placement was 48 h (interquartile range, 25-96 h), and 32 patients (32%) were diagnosed with PANP. PANP was closely related to hospitalization costs, re-admission to the hospital due to urinary tract infection after surgery and premature delivery. Multivariate analysis found that stone location and time from pain to admission were related to PANP.
CONCLUSION Both early and delayed surgery are safe and effective for the treatment of renal colic during pregnancy. Early surgery may be superior to a delayed procedure due to shorter LOS. For pregnant patients with renal colic, delayed surgery within 48 h is not related to the clinical outcome of the mother and child. However, the time from pain to hospital admission was related to PANP.
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Affiliation(s)
- Mao-Mao He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Xiao-Ting Lin
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Ming Lei
- Department of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Xiao-Lan Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Zhi-Hui He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
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Lee MS, Fenstermaker MA, Naoum EE, Chong S, Van de Ven CJ, Bauer ME, Kountanis JA, Ellis JH, Shields J, Ambani S, Krambeck AE, Roberts WW, Ghani KR. Management of Nephrolithiasis in Pregnancy: Multi-Disciplinary Guidelines From an Academic Medical Center. Front Surg 2021; 8:796876. [PMID: 35028309 PMCID: PMC8751485 DOI: 10.3389/fsurg.2021.796876] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 12/02/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: The management of nephrolithiasis during pregnancy can be stressful for urologists due to concerns for investigations and treatments that may pose risk of fetal harm, and unfamiliarity with optimal management of these complex patients. In response, we created multi-disciplinary evidence-based guidelines to standardize the care for obstetric patients presenting with flank pain and suspicion for nephrolithiasis. Methods: A multi-disciplinary team involving Urology, Obstetric Anesthesiology, Obstetrics and Gynecology, Diagnostic Radiology, and Interventional Radiology from a single academic medical center was assembled. A PubMed search was performed using keywords of pregnancy/antepartum, nephrolithiasis/calculi/kidney stones, ureteroscopy, non-obstetric surgery, complications, preterm delivery, MRI, computerized tomography, renal bladder ultrasound (RBUS), and anesthesia to identify relevant articles. Team members reviewed their respective areas to create a comprehensive set of guidelines. One invited external expert reviewed the guidelines for validation purposes. Results: A total of 54 articles were reviewed for evidence synthesis. Four guideline statements were constructed to guide diagnosis and imaging, and seven statements to guide intervention. Guidelines were then used to create a diagnostic and intervention flowchart for ease of use. In summary, RBUS should be the initial diagnostic study. If diagnostic uncertainty still exists, a non-contrast CT scan should be obtained. For obstetric patients presenting with a septic obstructing stone, urgent decompression should be achieved. We recommend ureteral stent placement as the preferred intervention if local factors allow. Conclusions: We present a standardized care pathway for the management of nephrolithiasis during pregnancy. Our aim is to standardize and simplify the clinical management of these complex scenarios for urologists.
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Affiliation(s)
- Matthew S. Lee
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Michael A. Fenstermaker
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
- Kaiser Permanente Group, Department of Urology, Washington, DC, United States
| | - Emily E. Naoum
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, United States
| | - Suzanne Chong
- Department of Radiology, Indiana University, Indianapolis, IN, United States
| | - Cosmas J. Van de Ven
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, United States
| | - Melissa E. Bauer
- Department of Anesthesiology, Duke University, Durham, NC, United States
| | - Joanna A. Kountanis
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, United States
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, United States
| | - James H. Ellis
- Department of Radiology, University of Michigan, Ann Arbor, MI, United States
| | - James Shields
- Department of Interventional Radiology, University of Michigan, Ann Arbor, MI, United States
| | - Sapan Ambani
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
| | - Amy E. Krambeck
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - William W. Roberts
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
| | - Khurshid R. Ghani
- Department of Urology, University of Michigan, Ann Arbor, MI, United States
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Zhou Q, Chen WQ, Xie XS, Xiang SL, Yang H, Chen JH. Maternal and neonatal outcomes of pregnancy complicated by urolithiasis: a systematic review and meta-analysis. J Nephrol 2021; 34:1569-1580. [PMID: 34173939 DOI: 10.1007/s40620-021-01093-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/09/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The effect of urolithiasis on pregnancy-related outcomes remains unknown. The aim of this study was to determine the risk of adverse maternal and neonatal outcomes. METHODS We searched PubMed, Embase, and the Cochrane Library through December 2020 for studies reporting on adverse maternal and neonatal outcomes in patients with urolithiasis. Risk ratios (ORs) with 95% confidence intervals (CIs) were calculated for these outcomes in pregnant mothers with urolithiasis and compared to healthy controls. RESULTS Eight studies comprising 26,577 mothers with urolithiasis were included in our analysis. Preterm birth (OR = 1.63; 95% CI 1.37-1.95, p < 0.001) or very preterm birth risk (OR = 1.49, 95% CI 1.06-2.11, p = 0.02) was more common in patients with urolithiasis compared to healthy controls. Mothers with urolithiasis had an increased incidence of preeclampsia (OR = 1.75, 95% CI 1.33-2.3, p < 0.001), hypertension (OR = 2.97, 95% CI 1.31-6.71, p = 0.009), caesarean section (OR 1.31, 95% CI 1.11-1.55, p = 0.001), and gestational diabetes mellitus (OR 1.84, 95% CI 1.37-2.46, p < 0.001). CONCLUSION Patients with urolithiasis may be at increased risk of developing adverse maternal or neonatal outcomes.
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Affiliation(s)
- Qin Zhou
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China.,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China.,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China.,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China.,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China
| | - Wen-Qing Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China.,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China.,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China.,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China.,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China
| | - Xi-Shao Xie
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China.,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China.,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China.,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China.,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China
| | - Shi-Long Xiang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China.,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China.,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China.,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China.,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China
| | - Hao Yang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China.,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China.,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China.,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China.,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China
| | - Jiang-Hua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Qingchun Road 79, Hangzhou, 31000, People's Republic of China. .,Key Laboratory of Nephropathy, Hangzhou, People's Republic of China. .,Kidney Disease Immunology Laboratory, The Third-Grade Laboratory, State Administration of Traditional Chinese Medicine of China, Hangzhou, People's Republic of China. .,Key Laboratory of Multiple Organ Transplantation, Ministry of Health, Hangzhou, People's Republic of China. .,Institute of Nephropathy, Zhejiang University, Hangzhou, People's Republic of China.
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10
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Sebastian N, Czuzoj-Shulman N, Spence AR, Abenhaim HA. Maternal and fetal outcomes of urolithiasis: A retrospective cohort study. J Gynecol Obstet Hum Reprod 2021; 50:102161. [PMID: 33984541 DOI: 10.1016/j.jogoh.2021.102161] [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: 01/20/2021] [Revised: 04/22/2021] [Accepted: 05/04/2021] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Although urolithiasis is relatively common in the general population, there is limited information on this condition available in the pregnant population. The objectives of this study are to identify the incidence of urolithiasis in pregnancy, as well as to compare maternal and fetal outcomes associated with urolithiasis in pregnancy. METHODS Using the Healthcare Cost and Utilization Project-Nationwide Inpatient Sample database from the United States, a population-based retrospective cohort study consisting of pregnant women who delivered between 1999 and 2015 was conducted. ICD-9-CM code 592.X was used to identify pregnant women with urolithiasis within the cohort, with pregnant women without urolithiasis forming the comparison group. Unconditional logistic regression models were used to estimate the associations between urolithiasis in pregnancy and maternal and neonatal outcomes, while adjusting for baseline maternal characteristics. RESULTS A cohort of 13,792,544 pregnant women was identified, of which 11,528 had a urolithiasis-related admission during pregnancy, for an overall incidence of 8.3 per 10,000 pregnancies. Women with urolithiasis had a greater risk of developing preeclampsia/eclampsia, OR 1.35(95% CI 1.24-1.47), gestational diabetes, 1.29(1.20-1.30), abruptio placenta, 1.41(1.22-1.64), placenta previa, 1.55(1.27-1.90), pyelonephritis, 88.87(81.69-96.69), venous thromboembolism, 1.65(1.23-2.22), and more likely to deliver by cesarean, 1.20(1.15-1.25). As well, maternal death was more common among these women, 2.85(1.07-7.60). Congenital anomalies, 2.84(2.43-3.31) and prematurity, 1.92(1.82-2.03) were more commonly found among babies born to women with urolithiasis. CONCLUSION Although the mechanism is unclear, women with urolithiasis in pregnancy have an increased risk of adverse pregnancy and newborn outcomes.
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Affiliation(s)
- Natasha Sebastian
- Department of Obstetrics and Gynecology, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Nicholas Czuzoj-Shulman
- Center for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, Quebec, Canada
| | - Andrea R Spence
- Center for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, Quebec, Canada
| | - Haim Arie Abenhaim
- Department of Obstetrics and Gynecology, Jewish General Hospital, McGill University, Montreal, Quebec, Canada; Center for Clinical Epidemiology and Community Studies, Jewish General Hospital, Montreal, Quebec, Canada.
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11
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Thongprayoon C, Vaughan LE, Chewcharat A, Kattah AG, Enders FT, Kumar R, Lieske JC, Pais VM, Garovic VD, Rule AD. Risk of Symptomatic Kidney Stones During and After Pregnancy. Am J Kidney Dis 2021; 78:409-417. [PMID: 33867205 DOI: 10.1053/j.ajkd.2021.01.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/05/2021] [Indexed: 11/11/2022]
Abstract
RATIONALE & OBJECTIVE There are several well-known anatomical and physiological changes during pregnancy that could contribute to kidney stone formation, but evidence that they increase the risk of kidney stones during pregnancy is lacking. We determined whether there was an increased risk of a first-time symptomatic kidney stone during and after pregnancy. STUDY DESIGN A population-based matched case-control study. SETTING & PARTICIPANTS 945 female first-time symptomatic kidney stone formers aged 15-45 years and 1,890 age-matched female controls in Olmsted County, MN, from 1984-2012. The index date was the date of onset of a symptomatic kidney stone for both the case and her matched controls. EXPOSURE The primary exposure was pregnancy with assessment for variation in risk across different time intervals before, during, and after pregnancy. Medical records were manually reviewed to determine the conception and delivery dates for pregnancies. OUTCOME Medical record-validated first-time symptomatic kidney stone. ANALYTICAL APPROACH Conditional and unconditional multivariable logistic regression analysis. RESULTS Compared with nonpregnant women, the odds of a symptomatic kidney stone forming in women was similar in the first trimester (OR, 0.92; P=0.8), began to increase during the second trimester (OR, 2.00; P=0.007), further increased during the third trimester (OR, 2.69; P=0.001), peaked at 0 to 3 months after delivery (OR, 3.53; P<0.001), and returned to baseline by 1year after delivery. These associations persisted after adjustment for age and race or for diabetes mellitus, hypertension, and obesity. These results did not significantly differ by age, race, time period, or number of prior pregnancies. Having a prior pregnancy (delivery date>1year ago) was also associated with a first-time symptomatic kidney stone (OR, 1.27; P=0.01). LIMITATIONS Observational study design in a predominantly White population. The exact timing of stone formation cannot be determined. CONCLUSIONS Pregnancy increases the risk of a first-time symptomatic kidney stone. This risk peaks close to delivery and then improves by 1 year after delivery, though a modest risk of a kidney stone still exists beyond 1 year after delivery.
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Affiliation(s)
| | | | - Api Chewcharat
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - Andrea G Kattah
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | | | - Rajiv Kumar
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - John C Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN
| | - Vernon M Pais
- Section of Urology, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Vesna D Garovic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN; Department of Obstetrics, Mayo Clinic, Rochester, MN
| | - Andrew D Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN.
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12
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Kirubarajan A, Taheri C, Yau M, Aggarwal R, Lam ACL, Golda N, Buckley R. Incidence of kidney stones in pregnancy and associations with adverse obstetrical outcomes: a systematic review and meta-analysis of 4.7 million pregnancies. J Matern Fetal Neonatal Med 2021; 35:5282-5290. [PMID: 33541166 DOI: 10.1080/14767058.2021.1878141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Renal stones are a common cause of non-obstetrical abdominal pain in pregnant women. Though the management of renal stones in pregnancy is challenging, it remains unclear how the incidence of kidney stones may affect the course of pregnancy and delivery. OBJECTIVE To determine the incidence of renal stones in pregnancy and its impact on adverse obstetrical outcomes. DATA SOURCES We conducted a systematic literature search of three databases: Ovid MEDLINE, Ovid EMBASE, and EBSCO CINAHL Plus. After the selection of articles, an additional hand-search of their citations was completed to maximize sensitivity. Databases were examined from the last four decades (19 March 1970) up to the search date (19 March 2020). STUDY ELIGIBILITY CRITERIA Articles were excluded if they were not relevant to kidney stones or did not report outcomes related to pregnancy. Case reports, animal studies, and cadaveric studies were excluded. Conference abstracts, gray literature, and unpublished data were not eligible. STUDY APPRAISAL AND SYNTHESIS METHODS All screening, extraction, and synthesis were completed in duplicate with two independent reviewers. All outcomes reported in the included studies were systematically evaluated to determine suitability for meta-analysis. Random-effects models and sensitivity analyses were used to account for interstudy variation. Renal stone incidence rates were pooled to generate summary proportions. Risk of bias assessment was completed using the Risk of Bias Assessment tool for Non-randomized Studies. RESULTS Twenty-one studies were included through systematic review and approximately 4.7 million pregnancies across nine studies were included for meta-analysis. There are three major findings of this review regarding renal stone incidence in pregnancy and maternal, child, and birth-related outcomes associated with renal stones. First, we found pooled incidence of renal stones was 0.49%, or one case for every 204 pregnancies. Second, renal stones during pregnancy were significantly associated with the development of preeclampsia and urinary tract infection, as well as increased likelihood of low birth weight, preterm labor, and C-section deliveries. However, renal stones were not significantly associated with premature rupture of membranes or infant mortality. Third, there were limited obstetrical complications reported with either medical or surgical therapies although comparative outcomes were not provided in the majority of studies, precluding formal meta-analysis. CONCLUSIONS Although renal stones in pregnancy are relatively rare, there may be an associated risk of serious adverse obstetrical outcomes. However, further research is required to understand whether these obstetrical outcomes are causal or due to other confounders. Interdisciplinary care and pregnancy-specific counseling should be advised for pregnant women with kidney stones.
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Affiliation(s)
- Abirami Kirubarajan
- Faculty of Medicine, University of Toronto, Toronto, Canada.,Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Canada
| | - Cameron Taheri
- Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Matthew Yau
- Faculty of Medicine, University of Toronto, Toronto, Canada.,Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Canada
| | | | - Andrew C L Lam
- Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Nicole Golda
- Urology, North York General Hospital, Toronto, Canada
| | - Roger Buckley
- Urology, North York General Hospital, Toronto, Canada
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13
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Thakur APS, Sharma V, Ramasamy V, Choudhary A, Patel P, Singh S, Parol S. Management of ureteric stone in pregnancy: a review. AFRICAN JOURNAL OF UROLOGY 2020. [DOI: 10.1186/s12301-020-00070-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Urolithiasis in pregnancy is a major health concern and is one of the most common causes for non-obstetrical abdominal pain and subsequent hospital admission during pregnancy. The incidence of urinary calculi during pregnancy varies in the range of 1/200 to 1/2000. Acute ureteric colic in pregnancy is associated with significant potential risks to both mother and fetus. Significant anatomic and functional changes occur in pregnancy which not only lead to stone formation but also create diagnostic dilemma. The diagnosis of ureteric calculi can be incorrect in about 28% of pregnant patients.
Main body
Management of ureteric stone during pregnancy is remaining to be a challenge for the treating urologist. Because of the inability to use good imaging options for the diagnosis confirmation and more invasive approach for the treatment, management continues to be difficult. The main threats are preterm labor with delivery and premature rupture of membranes. Other pregnancy complications are obstructive uropathy, gestational diabetes mellitus, recurrent abortions and pre-eclampsia. Management of diagnosed ureteric stone is unique in the pregnant population and requires multi-disciplinary care. It should be individualized for each patient and moves preferably from conservative to invasive approaches sequentially. With continued advancements in endourological techniques, few definitive treatment options are also available for such patients.
Conclusion
There are several lacunae related with the diagnostic imaging, medical expulsive therapy, reliability of ureteral stent/percutaneous nephrostomy insertions and safety of ureteroscopy during pregnancy. Herein, we review the management of ureteric stone during pregnancy, the various diagnostic modalities and treatment options with their advantages and disadvantages. We also proposed our management algorithm to deal with such clinical scenario in this particular population.
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14
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Dai JC, Nicholson TM, Chang HC, Desai AC, Sweet RM, Harper JD, Sorensen MD. Nephrolithiasis in Pregnancy: Treating for Two. Urology 2020; 151:44-53. [PMID: 32866511 DOI: 10.1016/j.urology.2020.06.097] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To review the literature regarding the epidemiology of stone disease and develop a management algorithm based on current evidence and societal guidelines. METHODS A structured literature review was performed to determine highest quality of evidence guiding care for pregnant patients with symptomatic nephrolithiasis. PUBMED and EMBASE databases were searched using terms "pregnancy," "nephrolithiasis," or "pregnancy" and "renal colic" alone and in combination with "stone", "kidney stone," "ultrasound," "MRI," "CT," "percutaneous nephrostomy," "ureteral stent," or "ureteroscopy." All English-language abstracts were reviewed for relevance and full-length articles were reviewed for content. Articles published prior to 1990 were excluded, and priority for inclusion was given to multi-institutional studies and larger institutional studies, reflecting the highest level of current available evidence and most contemporaneous practice patterns. RESULTS Symptomatic nephrolithiasis affects less than 1% of pregnancies but poses unique diagnostic challenges due to the physiologic changes of pregnancy and risks of ionizing radiation exposure to the fetus. Ultrasound remains the imaging modality of choice. Most patients may be managed non-operatively, but drainage with percutaneous nephrostomy or ureteral stent may be performed if warranted. Growing evidence also supports the safety and efficacy of definitive stone treatment. CONCLUSIONS Though rare, symptomatic nephrolithiasis poses significant clinical challenges due to the need to minimize risk for both mother and fetus with diagnostic and therapeutic interventions. A multi-disciplinary approach is paramount, as is shared decision making with the patient at each step of care.
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Affiliation(s)
- Jessica C Dai
- Department of Urology, University of Washington, Seattle, WA.
| | | | - Helena C Chang
- Department of Urology, Kaiser Permanente Santa Clara Medical Center, Santa Clara CA
| | - Alana C Desai
- Division of Urologic Surgery, Washington University School of Medicine, St. Louis, MO
| | - Robert M Sweet
- Department of Urology, University of Washington, Seattle, WA
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15
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Abstract
The incidence and prevalence of kidney stones have increased over the past four decades. However, the diagnosis of 'kidney stone' can range from an incidental asymptomatic finding of limited clinical significance to multiple painful episodes of ureteral obstruction with eventual kidney failure. Some general strategies may be useful to prevent the recurrence of kidney stones. In particular, greater attention to kidney stone classification, approaches to assessing the risk of recurrence and individualized prevention strategies may improve the clinical care of stone formers. Although there have been some advances in approaches to predicting the recurrence of kidney stones, notable challenges remain. Studies of kidney stone prevalence, incidence and recurrence have reported inconsistent findings, in part because of the lack of a standardized stone classification system. A kidney stone classification system based on practical and clinically useful measures of stone disease may help to improve both the study and clinical care of stone formers. Any future kidney stone classification system should be aimed at distinguishing asymptomatic from symptomatic stones, clinically diagnosed symptomatic stone episodes from self-reported symptomatic stone episodes, symptomatic stone episodes that are confirmed from those that are suspected, symptomatic recurrence from radiographic recurrence (that is, with radiographic evidence of a new stone, stone growth or stone disappearance from presumed passage) and determine stone composition based on mutually exclusive categories.
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Abstract
PURPOSE OF REVIEW Pregnancy-related acute kidney injury (Pr-AKI) is associated with increased maternal and fetal morbidity and mortality and remains a large public health problem. RECENT FINDINGS Pr-AKI incidence has globally decreased over time for the most part. However, the cause presents a disparity between developing and developed countries, reflecting differences in socioeconomic factors and healthcare infrastructure - with the noteworthy outlier of increased incidence in the United States and Canada. Although Pr-AKI can be secondary to conditions affecting the general population, in most cases it is pregnancy specific. Septic abortion, hyperemesis gravidarum, and hemorrhage have become less prevalent with access to healthcare but are being displaced by thrombotic microangiopathies, such as preeclampsia, hemolysis, elevated liver enzymes, low platelets syndrome, thrombotic thrombocytopenic purpura, and pregnancy-associated hemolytic-uremic syndromes, as well as acute fatty liver of pregnancy. Understanding these conditions plays a pivotal role in the timely diagnosis and enhancement of therapeutic approaches. SUMMARY In this review, we focus on the renal physiology of the pregnancy, epidemiology, and specific conditions known to cause Pr-AKI, summarizing diagnostic definition, insights in pathophysiology, clinical considerations, and novel treatment approaches, thus providing the reader a framework of clinically relevant information for interdisciplinary management.
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17
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Ramachandra M, Somani BK. Safety and feasibility of percutaneous nephrolithotomy (PCNL) during pregnancy: A review of literature. Turk J Urol 2020; 46:89-94. [PMID: 32134719 DOI: 10.5152/tud.2020.20002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/11/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Management of nephrolithiasis during pregnancy can be challenging because of the potential risks to the mother and fetus. Diagnosis and treatment can be a dilemma owing to the anatomical and physiological changes, besides the limitation in the use of X-rays. The aim of this article was to identify any case series or case reports where percutaneous nephrolithotomy (PCNL) was used as a treatment modality for nephrolithiasis in pregnancy. MATERIAL AND METHODS A review of the literature was performed using Medline, EMBASE, CINAHL, and Scopus from 1990 to October 2019. A search was conducted using the following search terms: "urolithiasis," "renal stones," "stone disease," "kidney stones," "pregnancy," "pregnant," "percutaneous nephrolithotomy," "PNL," and "PCNL." The initial search strategy retrieved 52 articles, but after going through them, only 7 were suitable for inclusion in this review. RESULTS Overall, seven studies reported regarding 16 patients who underwent PCNL procedure during pregnancy. The patients were aged 18-34 years and had the procedure between 11 and 32 weeks of gestation. Most stones were in the renal pelvis or pelvic-ureteric junction and sized 8-40 mm, with the most common indication for the intervention being refractory pain. Most treatments used ultrasound guidance, and X-ray fluoroscopy was employed only in two cases. No complications occurred to the mother or fetus in any of the case reports, suggesting that PCNL is a safe and feasible treatment for patients with persistent symptoms when conservative treatment has failed. CONCLUSION All the reported cases of PCNL achieved stone-free status with no complications. Although PCNL has been evidenced to be safe, it must be performed by experienced endourologists after careful consultation with the obstetricians. Patient counseling and multidisciplinary team decision-making are paramount in such complex scenarios.
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Affiliation(s)
- Meghana Ramachandra
- Urological Surgery Department, University Hospital Southampton NHS Trust, Southampton, UK
| | - Bhaskar K Somani
- Urological Surgery Department, University Hospital Southampton NHS Trust, Southampton, UK
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18
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Çam İ, Şengül E, Kale A, Ulukaradag E, Öztürk O, Yalnız A, Çakır Ö. X-ray free administration of nephrostomy in a pregnant patient with bilateral obstructing urolithiasis. J OBSTET GYNAECOL 2020; 40:1171-1173. [PMID: 31941398 DOI: 10.1080/01443615.2019.1694879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- İsa Çam
- Department of Radiology Kocaeli, Kocaeli University School Of Medicine, Kocaeli, Turkey
| | - Erkan Şengül
- Department of Nephrology, Derince Training and Research Hospital, Kocaeli, Turkey
| | - Ahmet Kale
- Department of Obstetrics and Gynecology, Doctor Lufti Kirdar Kartal Training and Research Hospital, İstanbul, Turkey
| | - Emre Ulukaradag
- Department of Urology, Derince Training and Research Hospital, Kocaeli, Turkey
| | - Onural Öztürk
- Department of Radiology Kocaeli, Kocaeli University School Of Medicine, Kocaeli, Turkey
| | - Ahmet Yalnız
- Department of Radiology Kocaeli, Derince Training and Research Hospital, Turkey
| | - Özgür Çakır
- Department of Radiology Kocaeli, Kocaeli University School Of Medicine, Kocaeli, Turkey
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19
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Theriault B, Morin F, Cloutier J. Safety and efficacy of Tamsulosin as medical expulsive therapy in pregnancy. World J Urol 2019; 38:2301-2306. [PMID: 31768615 DOI: 10.1007/s00345-019-03022-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/12/2019] [Indexed: 10/25/2022] Open
Abstract
PURPOSE Use of medical expulsive therapy (MET) is common practice in urology for the treatment of symptomatic urolithiasis, despite this its efficacy is debated. Its use in pregnancy is controversial. Our objective was to evaluate the safety and efficacy of Tamsulosin as a MET in pregnant women. MATERIAL AND METHODS We retrospectively identified pregnant patients who presented with renal colic at the CHU de Québec from 2000 to 2015. We compared patients who received Tamsulosin as MET to a control group without MET. We evaluated efficacy as passage rate of lithiasis and necessity of intervention. We evaluated safety of the treatment according to fetal outcomes (birth weight, APGAR, gestational age). RESULTS We evaluated 207 pregnant patients presenting renal colic, 69 patients in the MET group were compared to 138 patients in the control group. Of these, 48 (70%) in the Tamsulosin therapy group and 76 (56%) in the control group had proven urolithiasis. No significant difference was found for mean gestational age at birth, birth weight and APGAR. No sudden infant death syndrome was encountered in Tamsulosin group. There was no significant difference for length of hospital stay and need for surgical intervention. The spontaneous passage rate was 58% (25/48) in the MET group compared to 43% (29/76), but this difference was not statistically significant (p = 0.18). CONCLUSIONS Short-term utilisation of Tamsulosin as MET in second and third trimester of pregnancy is not associated with adverse maternal or infant outcomes. Moreover, there was no significant adjunct for the rate of stone passage.
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Affiliation(s)
- Benoît Theriault
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Hôpital Saint-François D'Assise, 10 rue de l'Espinay, Ville de Québec, QC, G1L 3K5, Canada.
| | - Fannie Morin
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Hôpital Saint-François D'Assise, 10 rue de l'Espinay, Ville de Québec, QC, G1L 3K5, Canada
| | - Jonathan Cloutier
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Hôpital Saint-François D'Assise, 10 rue de l'Espinay, Ville de Québec, QC, G1L 3K5, Canada
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20
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Hsi RS, Schlunk SG, Tierney JE, Dei K, Jones R, George M, Karve P, Duddu R, Byram BC. Feasibility of non-linear beamforming ultrasound methods to characterize and size kidney stones. PLoS One 2018; 13:e0203138. [PMID: 30153279 PMCID: PMC6112662 DOI: 10.1371/journal.pone.0203138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/15/2018] [Indexed: 12/04/2022] Open
Abstract
Purpose Ultrasound methods for kidney stone imaging suffer from poor sensitivity and size overestimation. The study objective was to demonstrate feasibility of non-linear ultrasound beamforming methods for stone imaging, including plane wave synthetic focusing (PWSF), short-lag spatial coherence (SLSC) imaging, mid-lag spatial coherence (MLSC) imaging with incoherent compounding, and aperture domain model image reconstruction (ADMIRE). Materials and methods The ultrasound techniques were evaluated in an in vitro kidney stone model and in a pilot study of 5 human stone formers (n = 6 stones). Stone contrast, contrast-to-noise ratio (CNR), sizing, posterior shadow contrast, and shadow width sizing were compared among the different techniques and to B-mode. CT imaging within 60 days was considered the gold standard stone size. Paired t-tests using Bonferroni correction were performed to evaluate comparing each technique with B-mode. Results Mean CT measured stone size was 6.0mm (range 2.9–12.2mm) with mean skin-to-stone distance 10.2cm (range 5.4–16.3cm). Compared to B-mode, stone contrast was best with ADMIRE (mean +12.2dB), while SLSC and MLSC showed statistically improved CNR. Sizing was best with ADMIRE (mean +1.3mm error), however this was not significantly improved over B-mode (+2.4mm). PWSF performed similarly to B-mode for stone contrast, CNR, SNR, and stone sizing. In the in vitro model, the shadow contrast was highest with ADMIRE (mean 10.5 dB vs 3.1 dB with B-mode). Shadow sizing was best with SLSC (mean error +0.9mm ± 2.9), however the difference compared to B-mode was not significant. Conclusions The detection and sizing of stones are feasible with advanced beamforming methods with ultrasound. ADMIRE, SLSC, and MLSC hold promise for improving stone detection, shadow contrast, and sizing.
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Affiliation(s)
- Ryan S. Hsi
- Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- * E-mail:
| | - Siegfried G. Schlunk
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Jaime E. Tierney
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Kazuyuki Dei
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Rebecca Jones
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Mark George
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Pranav Karve
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Ravindra Duddu
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Brett C. Byram
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States of America
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21
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Valovska MTI, Pais VM. Contemporary best practice urolithiasis in pregnancy. Ther Adv Urol 2018; 10:127-138. [PMID: 29560029 DOI: 10.1177/1756287218754765] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 12/31/2017] [Indexed: 01/10/2023] Open
Abstract
Urolithiasis is the most common nonobstetric complication in the gravid patient. The experience can provoke undue stress for the mother, fetus, and management team. The physiologic changes of pregnancy render the physical exam and imaging studies less reliable than in the typical patient. Diagnosis is further complicated by the need for careful selection of imaging modality in order to maximize diagnostic utility and minimize obstetric risk to the mother and ionizing radiation exposure to the fetus. Ultrasound remains the first-line diagnostic imaging modality in this group, but other options are available if results are inconclusive. A trial of conservative management is uniformly recommended. In patients who fail spontaneous stone passage, treatment may be temporizing or definitive. While temporizing treatments have classically been deemed the gold standard, ureteroscopic stone removal is now acknowledged as a safe and highly effective definitive treatment approach. Ultimately, a multidisciplinary, team-based approach involving the patient, her obstetrician, urologist, radiologist, and anesthesiologist is needed to devise a maximally beneficial management plan.
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Affiliation(s)
| | - Vernon M Pais
- Dartmouth-Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, New Hampshire 03756-1000, USA
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22
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Rao S, Jim B. Acute Kidney Injury in Pregnancy: The Changing Landscape for the 21st Century. Kidney Int Rep 2018; 3:247-257. [PMID: 29725629 PMCID: PMC5932309 DOI: 10.1016/j.ekir.2018.01.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 01/26/2018] [Accepted: 01/28/2018] [Indexed: 12/27/2022] Open
Abstract
Pregnancy-related acute kidney injury (Pr-AKI) remains a large public health problem, with decreasing incidences in developing countries but seemingly increasing incidences in the United States and Canada. These epidemiologic changes are reflective of the advances in medical and obstetric care, as well as changes in underlying maternal risk factors. The risk factors associated with advanced maternal age, such as hypertension, diabetes, chronic kidney disease, and those associated with reproductive technologies such as multiple gestations, are increasing. Traditional causes of Pr-AKI, such as septic abortions and puerperal sepsis, have been replaced by hypertensive diseases, such as preeclampsia and thrombotic microangiopathies comprising thrombotic thrombocytopenic purpura (TTP) and atypical hemolytic uremic syndrome (aHUS). In this review, we discuss the global impact of Pr-AKI on maternal and fetal outcomes, the predominant etiologies, and key clinical features to distinguish diagnoses, such as preeclampsia/hemolysis elevated liver function test and low platelet (HELLP) syndrome, acute fatty liver disease of pregnancy (AFLP), and other thrombotic microangiopathies. New insights into the pathogenesis of preeclampsia, TTP/aHUS, and AFLP that have unearthed possible therapeutic targets are summarized. We also delve into special consideration needed to give to pyelonephritis and postobstructive causes of Pr-AKI. With each diagnosis, we offer the latest treatment recommendations, such as the positive reports from the use of eculizumab to treat aHUS. In the end, we hope to arm the clinician with the best tools to understand and address this morbid problem that does not seem to be disappearing.
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Affiliation(s)
- Swati Rao
- Division of Nephrology, Department of Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Belinda Jim
- Division of Nephrology, Department of Medicine, Jacobi Medical Center at Albert Einstein College of Medicine, Bronx, New York, USA
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23
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Reinstatler L, Khaleel S, Pais VM. Association of Pregnancy with Stone Formation among Women in the United States: A NHANES Analysis 2007 to 2012. J Urol 2017; 198:389-393. [DOI: 10.1016/j.juro.2017.02.3233] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2017] [Indexed: 10/20/2022]
Affiliation(s)
- Lael Reinstatler
- Section of Urology, Department of Surgery, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
- Geisel School of Medicine at Dartmouth (SK), Hanover, New Hampshire
| | - Sari Khaleel
- Section of Urology, Department of Surgery, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
- Geisel School of Medicine at Dartmouth (SK), Hanover, New Hampshire
| | - Vernon M. Pais
- Section of Urology, Department of Surgery, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
- Geisel School of Medicine at Dartmouth (SK), Hanover, New Hampshire
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24
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Haddad L, Corriveau S, Rousseau E, Blouin S, Pasquier JC, Ponsot Y, Roy-Lacroix MÈ. Impact of tamsulosin and nifedipine on contractility of pregnant rat ureters in vitro. J Matern Fetal Neonatal Med 2017; 31:191-196. [DOI: 10.1080/14767058.2017.1280017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lisette Haddad
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Stéphanie Corriveau
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Eric Rousseau
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Simon Blouin
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Jean-Charles Pasquier
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Yves Ponsot
- Department of Surgery, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Marie-Ève Roy-Lacroix
- Department of Obstetrics and Gynecology, Urology Division, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
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25
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Pyonephrosis: A Rare Cause of Puerperal Pyrexia. J Obstet Gynaecol India 2016; 66:601-603. [DOI: 10.1007/s13224-016-0849-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 01/20/2016] [Indexed: 11/27/2022] Open
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26
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Tzou DT, Usawachintachit M, Taguchi K, Chi T. Ultrasound Use in Urinary Stones: Adapting Old Technology for a Modern-Day Disease. J Endourol 2016; 31:S89-S94. [PMID: 27733052 DOI: 10.1089/end.2016.0584] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Ultrasound has become a mainstay tool in urologists' armamentarium for the diagnosis and management of nephrolithiasis. From starting as a rudimentary form of imaging, it has come to play a more prominent role over time, paralleling evolution in ultrasound technology. Throughout the medical community there is a growing emphasis on reducing the amount of ionizing radiation delivered to patients during routine imaging. As such there has been a resurgence of interest in ultrasound given its lack of associated radiation exposure and proven effectiveness as a diagnostic and therapeutic imaging modality. Herein, we provide a review of the history of ultrasound, how the use of ultrasound is expanding in both diagnosis and treatment of urinary stone disease, and finally how promising applications of ultrasound are shaping the future of kidney stone management.
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Affiliation(s)
- David T Tzou
- 1 Department of Urology, University of California , San Francisco, San Francisco, California
| | - Manint Usawachintachit
- 1 Department of Urology, University of California , San Francisco, San Francisco, California.,2 Division of Urology, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University , The Thai Red Cross Society, Bangkok, Thailand
| | - Kazumi Taguchi
- 1 Department of Urology, University of California , San Francisco, San Francisco, California.,3 Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences , Nagoya, Japan
| | - Thomas Chi
- 1 Department of Urology, University of California , San Francisco, San Francisco, California
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27
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Blanco LT, Socarras MR, Montero RF, Diez EL, Calvo AO, Gregorio SAY, Cansino JR, Galan JA, Rivas JG. Renal colic during pregnancy: Diagnostic and therapeutic aspects. Literature review. Cent European J Urol 2016; 70:93-100. [PMID: 28461996 PMCID: PMC5407324 DOI: 10.5173/ceju.2017.754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 05/01/2016] [Accepted: 11/21/2016] [Indexed: 11/24/2022] Open
Abstract
Introduction Renal colic during pregnancy is a rare urgency but is one of the most common non-obstetric reasons for hospital admission. The management often means a challenge for the urologist and gynecologist due to the complexity involved in preserving the maternal and fetal well-being. Material and methods We performed a literature search within the PubMed database. We found 65 related articles in English. We selected 36 for this review prioritizing publications in the last two decades. Results The anatomical and functional changes of the genitourinary system during pregnancy are well documented; also during pregnancy, there are several metabolic pro-lithogenic factors. The most common clinical presentation is flank pain accompanied by micro or macro hematuria. US provides data identifying renal obstruction shown by an increased renal resistance index. MRI allows differentiating the physiological dilatation from the pathological caused by an obstructive stone showing peripheral renal edema and renal enlargement. Low dose CT has been determined to be a safe and highly accurate imaging technique. Once the diagnosis is confirmed, the initial management of patients should be conservative. When conservative management fails the interventional treatment is mandatory, a urinary diversion of the obstructed renal unit either by a JJ stent or through a PCN catheter has to be done. The definitive management of the stone can be done in the postpartum or deferred ureteroscopy can be considered during pregnancy. Conclusions Renal colic during pregnancy is an uncommon urgency, so it is important for the urologist to know the management of this condition.
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Affiliation(s)
| | | | | | - Elena López Diez
- A.C. University Hospital Vigo, Department of Urology, Vigo, Spain
| | | | | | | | | | - Juan Gómez Rivas
- La Paz University Hospital, Department of Urology, Madrid, Spain
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28
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Kovacs CS. Maternal Mineral and Bone Metabolism During Pregnancy, Lactation, and Post-Weaning Recovery. Physiol Rev 2016; 96:449-547. [PMID: 26887676 DOI: 10.1152/physrev.00027.2015] [Citation(s) in RCA: 251] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
During pregnancy and lactation, female physiology adapts to meet the added nutritional demands of fetuses and neonates. An average full-term fetus contains ∼30 g calcium, 20 g phosphorus, and 0.8 g magnesium. About 80% of mineral is accreted during the third trimester; calcium transfers at 300-350 mg/day during the final 6 wk. The neonate requires 200 mg calcium daily from milk during the first 6 mo, and 120 mg calcium from milk during the second 6 mo (additional calcium comes from solid foods). Calcium transfers can be more than double and triple these values, respectively, in women who nurse twins and triplets. About 25% of dietary calcium is normally absorbed in healthy adults. Average maternal calcium intakes in American and Canadian women are insufficient to meet the fetal and neonatal calcium requirements if normal efficiency of intestinal calcium absorption is relied upon. However, several adaptations are invoked to meet the fetal and neonatal demands for mineral without requiring increased intakes by the mother. During pregnancy the efficiency of intestinal calcium absorption doubles, whereas during lactation the maternal skeleton is resorbed to provide calcium for milk. This review addresses our current knowledge regarding maternal adaptations in mineral and skeletal homeostasis that occur during pregnancy, lactation, and post-weaning recovery. Also considered are the impacts that these adaptations have on biochemical and hormonal parameters of mineral homeostasis, the consequences for long-term skeletal health, and the presentation and management of disorders of mineral and bone metabolism.
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Affiliation(s)
- Christopher S Kovacs
- Faculty of Medicine-Endocrinology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
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29
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Bailey G, Vaughan L, Rose C, Krambeck A. Perinatal Outcomes with Tamsulosin Therapy for Symptomatic Urolithiasis. J Urol 2016; 195:99-103. [DOI: 10.1016/j.juro.2015.06.097] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2015] [Indexed: 11/26/2022]
Affiliation(s)
- George Bailey
- Department of Urology, Mayo Clinic, Rochester, Minnesota
| | - Lisa Vaughan
- Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Carl Rose
- Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, Minnesota
| | - Amy Krambeck
- Department of Urology, Mayo Clinic, Rochester, Minnesota
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30
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Fischer T, Grab D, Grubert T, Hantschmann P, Kainer F, Kästner R, Kentenich C, Klockenbusch W, Lammert F, Louwen F, Mylonas I, Pildner von Steinburg S, Rath W, Schäfer-Graf UM, Schleußner E, Schmitz R, Steitz HO, Verlohren S. Maternale Erkrankungen in der Schwangerschaft. FACHARZTWISSEN GEBURTSMEDIZIN 2016. [PMCID: PMC7158353 DOI: 10.1016/b978-3-437-23752-2.00017-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Ordon M, Andonian S, Blew B, Schuler T, Chew B, Pace KT. CUA Guideline: Management of ureteral calculi. Can Urol Assoc J 2015; 9:E837-51. [PMID: 26788233 DOI: 10.5489/cuaj.3483] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The focus of this guideline is the management of ureteral stones. Specifically, the topics covered include: conservative management, medical expulsive therapy, active intervention with either shockwave lithotripsy (SWL) or ureteroscopy (URS), factors affecting SWL treatment success, optimizing success, and special considerations (e.g., pregnancy, urinary diversion). By performing extensive literature reviews for each topic evaluated, we have generated an evidence-based consensus on the management of ureteral stones. The objective of this guideline is to help standardize the treatment of ureteral stones to optimize treatment outcomes.
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Affiliation(s)
- Michael Ordon
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON
| | - Sero Andonian
- Division of Urology, Department of Surgery, McGill University, Montreal, QC
| | - Brian Blew
- Division of Urology, Department of Surgery, University of Ottawa, Ottawa, ON
| | - Trevor Schuler
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, AB
| | - Ben Chew
- Department of Urology, University of British Columbia, Vancouver, BC
| | - Kenneth T Pace
- Division of Urology, Department of Surgery, University of Toronto, Toronto, ON
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32
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The role of imaging in the diagnosis and management of renal stone disease in pregnancy. Clin Radiol 2015; 70:1462-71. [DOI: 10.1016/j.crad.2015.09.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/22/2015] [Accepted: 09/03/2015] [Indexed: 02/03/2023]
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33
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Bouyou J, Gaujoux S, Marcellin L, Leconte M, Goffinet F, Chapron C, Dousset B. Abdominal emergencies during pregnancy. J Visc Surg 2015; 152:S105-15. [PMID: 26527261 DOI: 10.1016/j.jviscsurg.2015.09.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abdominal emergencies during pregnancy (excluding obstetrical emergencies) occur in one out of 500-700 pregnancies and may involve gastrointestinal, gynecologic, urologic, vascular and traumatic etiologies; surgery is necessary in 0.2-2% of cases. Since these emergencies are relatively rare, patients should be referred to specialized centers where surgical, obstetrical and neonatal cares are available, particularly because surgical intervention increases the risk of premature labor. Clinical presentations may be atypical and misleading because of pregnancy-associated anatomical and physiologic alterations, which often result in diagnostic uncertainty and therapeutic delay with increased risks of maternal and infant morbidity. The most common abdominal emergencies are acute appendicitis (best treated by laparoscopic appendectomy), acute calculous cholecystitis (best treated by laparoscopic cholecystectomy from the first trimester through the early part of the third trimester) and intestinal obstruction (where medical treatment is the first-line approach, just as in the non-pregnant patient). Acute pancreatitis is rare, usually resulting from trans-ampullary passage of gallstones; it usually resolves with medical treatment but an elevated risk of recurrent episodes justifies laparoscopic cholecystectomy in the 2nd trimester and endoscopic sphincterotomy in the 3rd trimester. The aim of the present work is to review pregnancy-induced anatomical and physiological modifications, to describe the main abdominal emergencies during pregnancy, their specific features and their diagnostic and therapeutic management.
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Affiliation(s)
- J Bouyou
- Service de chirurgie digestive, hépatobiliaire et endocrinienne, Hôpital Cochin, AP-HP, Paris, France
| | - S Gaujoux
- Service de chirurgie digestive, hépatobiliaire et endocrinienne, Hôpital Cochin, AP-HP, Paris, France; Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - L Marcellin
- Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Département de gynécologie-obstétrique II et médecine de la reproduction, Hôpital Cochin-Port Royal, AP-HP, Paris, France; DHU Risques et Grossesse, Université Paris Descartes, Paris, France
| | - M Leconte
- Service de chirurgie digestive, hépatobiliaire et endocrinienne, Hôpital Cochin, AP-HP, Paris, France; Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - F Goffinet
- Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Maternité, Hôpital Cochin-Port Royal, Paris, France; DHU Risques et Grossesse, Université Paris Descartes, Paris, France
| | - C Chapron
- Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Département de gynécologie-obstétrique II et médecine de la reproduction, Hôpital Cochin-Port Royal, AP-HP, Paris, France
| | - B Dousset
- Service de chirurgie digestive, hépatobiliaire et endocrinienne, Hôpital Cochin, AP-HP, Paris, France; Faculté de médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
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Andrabi Y, Patino M, Das CJ, Eisner B, Sahani DV, Kambadakone A. Advances in CT imaging for urolithiasis. Indian J Urol 2015; 31:185-93. [PMID: 26166961 PMCID: PMC4495492 DOI: 10.4103/0970-1591.156924] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Urolithiasis is a common disease with increasing prevalence worldwide and a lifetime-estimated recurrence risk of over 50%. Imaging plays a critical role in the initial diagnosis, follow-up and urological management of urinary tract stone disease. Unenhanced helical computed tomography (CT) is highly sensitive (>95%) and specific (>96%) in the diagnosis of urolithiasis and is the imaging investigation of choice for the initial assessment of patients with suspected urolithiasis. The emergence of multi-detector CT (MDCT) and technological innovations in CT such as dual-energy CT (DECT) has widened the scope of MDCT in the stone disease management from initial diagnosis to encompass treatment planning and monitoring of treatment success. DECT has been shown to enhance pre-treatment characterization of stone composition in comparison with conventional MDCT and is being increasingly used. Although CT-related radiation dose exposure remains a valid concern, the use of low-dose MDCT protocols and integration of newer iterative reconstruction algorithms into routine CT practice has resulted in a substantial decrease in ionizing radiation exposure. In this review article, our intent is to discuss the role of MDCT in the diagnosis and post-treatment evaluation of urolithiasis and review the impact of emerging CT technologies such as dual energy in clinical practice.
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Affiliation(s)
- Yasir Andrabi
- Department of Radiology, Division of Abdominal Imaging and Intervention Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Manuel Patino
- Department of Radiology, Division of Abdominal Imaging and Intervention Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Chandan J Das
- Department of Radiology, All India Institute of Medical Sciences, New Delhi, India
| | - Brian Eisner
- Department of Urology, Massachusetts General Hospital, Boston, MA, USA
| | - Dushyant V Sahani
- Department of Radiology, Division of Abdominal Imaging and Intervention Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Avinash Kambadakone
- Department of Radiology, Division of Abdominal Imaging and Intervention Radiology, Massachusetts General Hospital, Boston, MA, USA
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35
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Rodríguez D, Sacco DE. Minimally invasive surgical treatment for kidney stone disease. Adv Chronic Kidney Dis 2015; 22:266-72. [PMID: 26088070 DOI: 10.1053/j.ackd.2015.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 03/11/2015] [Accepted: 03/11/2015] [Indexed: 12/23/2022]
Abstract
Minimally invasive interventions for stone disease in the United States are mainly founded on 3 surgical procedures: extracorporeal shock wave lithotripsy, ureteroscopic lithotripsy, and percutaneous nephrolithotomy. With the advancement of technology, treatment has shifted toward less invasive strategies and away from open or laparoscopic surgery. The treatment chosen for a patient with stones is based on the stone and patient characteristics. Each of the minimally invasive techniques uses an imaging source, either fluoroscopy or ultrasound, to localize the stone and an energy source to fragment the stone. Extracorporeal shock wave lithotripsy uses a shock wave energy source generated outside the body to fragment the stone. In contrast, with ureteroscopy, laser energy is placed directly on the stone using a ureteroscope that visualizes the stone. Percutaneous nephrolithotomy requires dilation of a tract through the back into the renal pelvis so that instruments can be inserted directly onto the stone to fragment or pulverize it. The success of the surgical intervention relies on performing the least invasive technique with the highest success of stone removal.
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36
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Pregnancy in Chronic Kidney Disease: questions and answers in a changing panorama. Best Pract Res Clin Obstet Gynaecol 2015; 29:625-42. [DOI: 10.1016/j.bpobgyn.2015.02.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 02/18/2015] [Accepted: 02/23/2015] [Indexed: 01/10/2023]
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37
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38
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Daher CH, Gomes AC, Kobayashi S, Cerri GG, Chammas MC. Ultrasonographic study and Doppler flow velocimetry of maternal kidneys and liver in low-risk pregnancy. Radiol Bras 2015; 48:135-42. [PMID: 26185338 PMCID: PMC4492564 DOI: 10.1590/0100-3984.2013.1822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 10/14/2014] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Longitudinal study with B-mode ultrasonography and Doppler ultrasonography of maternal kidneys and liver in low-risk pregnancy, to establish and quantify normality parameters, correlating them with physiological changes. MATERIALS AND METHODS Twenty-five pregnant women were assessed and selected to participate in the study, each of them undergoing four examinations at the first, second, third trimesters and postpartum. RESULTS Findings during pregnancy were the following: increased renal volume, pyelocaliceal dilatation with incidence of 45.4% in the right kidney, and 9% in the left kidney; nephrolithiasis, 18.1% in the right kidney, 13.6% in the left kidney. With pyelocaliceal dilatation, mean values for resistivity index were: 0.68 for renal arteries; 0.66 for segmental arteries; 0.64 for interlobar arteries; 0.64 for arcuate arteries. Without pyelocaliceal dilatation, 0.67 for renal arteries; 0.64 for segmental arteries; 0.63 for interlobar arteries; and 0.61 for arcuate arteries. Portal vein flow velocities presented higher values in pregnancy, with mean value for maximum velocity of 28.9 cm/s, and 22.6 cm/s postpartum. The waveform pattern of the right hepatic vein presented changes persisting in the postpartum period in 31.8% of the patients. Cholelithiasis was observed in 18.1% of the patients. CONCLUSION Alterations in renal volume, pyelocaliceal dilatation, nephrolithiasis, cholelithiasis, changes in portal vein flow velocity, alterations in waveform pattern of the right hepatic vein, proved to be significant.
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Affiliation(s)
- Cibele Helena Daher
- MD, Researcher at Instituto de Radiologia do Hospital das
Clínicas da Faculdade de Medicina da Universidade de São Paulo
(InRad/HC-FMUSP), São Paulo, SP, Brazil
| | - Andrea Cavalanti Gomes
- Physician Assistants at Unit of Ultrasonography, Instituto de Radiologia
do Hospital das Clínicas da Faculdade de Medicina da Universidade de São
Paulo (In- Rad/HC-FMUSP), São Paulo, SP, Brazil
| | - Sergio Kobayashi
- Physician Assistants at Unit of Ultrasonography, Instituto de Radiologia
do Hospital das Clínicas da Faculdade de Medicina da Universidade de São
Paulo (In- Rad/HC-FMUSP), São Paulo, SP, Brazil
| | - Giovanni Guido Cerri
- Full Professor, Division of Radiology and Imaging Diagnosis, Faculdade
de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP,
Brazil
| | - Maria Cristina Chammas
- Director, Unit of Ultrasonography, Instituto de Radiologia do Hospital
das Clínicas da Faculdade de Medicina da Universidade de São Paulo
(InRad/HC-FMUSP), São Paulo, SP, Brazil
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