1
|
Squeo F, Celiberto F, Ierardi E, Russo F, Riezzo G, D’Attoma B, Leo AD, Losurdo G. Opioid-induced Constipation: Old and New Concepts in Diagnosis and Treatment. J Neurogastroenterol Motil 2024; 30:131-142. [PMID: 38576366 PMCID: PMC10999847 DOI: 10.5056/jnm23144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/06/2023] [Indexed: 04/06/2024] Open
Abstract
Daily use of opioid analgesics has significantly increased in recent years due to an increasing prevalence of conditions associated with chronic pain. Opioid-induced constipation (OIC) is one of the most common, under-recognized, and under-treated side effects of opioid analgesics. OIC significantly reduces the quality of life by causing psychological distress, lowering work productivity, and increasing access to healthcare facilities. The economic and social burden of OIC led to the development of precise strategies for daily clinical practice. Key aspects are the prevention of constipation through adequate water intake and fiber support, avoidance of sedentariness, and early recognition and treatment of cofactors that could worsen constipation. Recommended first-line therapy includes osmotic (preferably polyethylene glycol) and stimulant laxatives. Peripherally acting μ-opioid receptor antagonists, such as methylnaltrexone, naloxegol, or naldemedine, should be used in patients that have not responded to the first-line treatments. The bowel functional index is the main tool for assessing the severity of OIC and for monitoring the response. The paper discusses the recent literature on the pathophysiology, clinical evaluation, and management of OIC and provides a pragmatic approach for its assessment and treatment.
Collapse
Affiliation(s)
- Francesco Squeo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| | - Francesca Celiberto
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
- PhD Course in Organs and Tissues Transplantation and Cellular Therapies, Department of Precision Medicine Jonic Area, University of Bari “Aldo Moro”, Bari, Italy
| | - Enzo Ierardi
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| | - Francesco Russo
- Functional Gastrointestinal Disorders Research Group, National Institute of Gastroenterology IRCCS “Saverio de Bellis”, Castellana Grotte, Bari, Italy
| | - Giuseppe Riezzo
- Functional Gastrointestinal Disorders Research Group, National Institute of Gastroenterology IRCCS “Saverio de Bellis”, Castellana Grotte, Bari, Italy
| | - Benedetta D’Attoma
- Functional Gastrointestinal Disorders Research Group, National Institute of Gastroenterology IRCCS “Saverio de Bellis”, Castellana Grotte, Bari, Italy
| | - Alfredo Di Leo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| | - Giuseppe Losurdo
- Section of Gastroenterology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, Bari, Italy
| |
Collapse
|
2
|
Belsky JA, Brown AM. Investigating the safety and feasibility of osteopathic manipulative medicine in hospitalized children and adolescent young adults with cancer. J Osteopath Med 2024; 0:jom-2024-0013. [PMID: 38669608 DOI: 10.1515/jom-2024-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024]
Abstract
CONTEXT Children and adolescents young adults (AYAs) undergoing treatment for oncologic diagnoses are frequently hospitalized and experience unwanted therapy-induced side effects that diminish quality of life. Osteopathic manipulative treatment (OMT) is a medical intervention that utilizes manual techniques to diagnose and treat body structures. Few studies have investigated the implementation of OMT in the pediatric oncology outpatient setting. To date, no studies have investigated the safety and feasibility of OMT in the pediatric oncology inpatient setting. OBJECTIVES The objective of this study is to investigate the safety and feasibility of OMT in the pediatric oncology inpatient setting. METHODS This is a prospective, single-institution pilot study evaluating children and AYAs aged ≥2 years to ≤30 years with a diagnosis of cancer hospitalized at Riley Hospital for Children (RH) from September 2022 to July 2023. Approval was obtained from the Indiana University Institutional Review Board (IRB). Patients were evaluated daily with a history and physical examination as part of routine inpatient management. Patients who reported chemotherapy side effects commonly encountered and managed in the inpatient setting, such as pain, headache, neuropathy, constipation, or nausea, were offered OMT. Patients provided written informed consent/assent prior to receiving OMT. OMT was provided by trained osteopathic medical students under the supervision of a board-certified osteopathic physician and included techniques commonly taught in first- and second-year osteopathic medical school curricula. Safety was assessed by a validated pain (FACES) scale immediately pre/post-OMT and by adverse event grading per Common Terminology Criteria for Adverse Events (CTCAE) 24 h post-OMT. All data were summarized utilizing descriptive statistics. RESULTS A total of 11 patients were screened for eligibility. All patients met the eligibility criteria and were enrolled in the study. The majority of patients were male (n=7, 63.6 %) with a median age of 18.2 years at time of enrollment (range, 10.2-29.8 years). Patients had a variety of hematologic malignancies including B-cell acute lymphoblastic leukemia (ALL) (n=5, 45.5 %), T-cell ALL (n=1, 9.1 %), acute myeloid leukemia (AML) (n=2, 18.2 %), non-Hodgkin's lymphoma (n=2, 18.2 %), and Hodgkin's lymphoma (n=1, 9.1 %). All patients were actively undergoing cancer-directed therapy at the time of enrollment. There were 40 unique reasons for OMT reported and treated across 37 encounters, including musculoskeletal pain (n=23, 57.5 %), edema (n=7, 17.5 %), headache (n=5, 12.5 %), peripheral neuropathy (n=2, 5.0 %), constipation (n=2, 5.0 %), and epigastric pain not otherwise specified (n=1, 2.5 %). Validated FACES pain scores were reported in 27 encounters. Of the 10 encounters for which FACES pain scores were not reported, 8 encounters addressed lower extremity edema, 1 encounter addressed peripheral neuropathy, and 1 encounter addressed constipation. The total time of OMT was documented for 33 of the 37 encounters and averaged 9.8 min (range, 3-20 min). CONCLUSIONS Hospitalized children and AYAs with cancer received OMT safely with decreased pain in their reported somatic dysfunction(s). These findings support further investigation into the safety, feasibility, and efficacy of implementing OMT in the pediatric oncology inpatient setting and to a broader inpatient pediatric oncology population.
Collapse
Affiliation(s)
- Jennifer A Belsky
- Department of Pediatric Hematology/Oncology, Riley Hospital for Children, Indianapolis, IN, USA
| | - Amber M Brown
- Department of Pediatric Hematology/Oncology, Riley Hospital for Children, Indianapolis, IN, USA
| |
Collapse
|
3
|
Belsky J, Stanek J, Yeager N, Runco D. Constipation and GI diagnoses in children with solid tumours: prevalence and management. BMJ Support Palliat Care 2024; 13:e1166-e1173. [PMID: 36041819 PMCID: PMC10850831 DOI: 10.1136/spcare-2021-003506] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 08/12/2022] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Despite continued development of targeted therapies for children with cancer, patients continue to experience an array of unwanted side effects. Children with solid tumours may experience constipation as a result of vinca alkaloid therapy, psychological stressors, periods of inactivity and opioid use. Our objective was to investigate the prevalence and treatment of constipation in hospitalised children with solid tumours treated with chemotherapy. METHODS We retrospectively analysed data from 48 children's hospitals in the Pediatric Health Information System, extracting patients 0-21 years of age with a solid tumour diagnosis hospitalised from October 2015 through December 2019. RESULTS We identified 13 375 unique patients with a solid tumour diagnosis receiving chemotherapy. Constipation was the most common gastrointestinal complaint with 8658 (64.7%; 95% Cl: 63.9% to 65.5%) having a constipation diagnosis or having received at least two laxatives during admission. Bone cancers had the highest percentage (69.9%) of patients with constipation, while Hodgkin's lymphoma had the lowest, although 52.1% of patients were affected. A total of 44% (n=35 301) of encounters received an opioid at some point during admission. Of patients receiving constipation medications, the most commonly prescribed was polyethyl glycol (n=25 175, 31.7%), followed by docusate (n=11 297, 14.2%), senna (n=10 325, 13.0%) and lactulose (n=5501, 6.9%). CONCLUSIONS Constipation is the most common gastrointestinal issue that children with solid tumours experience while receiving chemotherapy in the inpatient setting. Increased attention should be given to constipation prophylaxis and treatment in children with solid tumours undergoing chemotherapy, particularly those identified as high risk.
Collapse
Affiliation(s)
- Jennifer Belsky
- Pediatric Hematology/Oncology/BMT, Riley Hospital for Children, Indianapolis, Indiana, USA
- Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | | | - Daniel Runco
- Pediatric Hematology/Oncology/BMT, Riley Hospital for Children, Indianapolis, Indiana, USA
- Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| |
Collapse
|
4
|
Lovell AL, Gardiner B, Henry L, Bate JM, Brougham MFH, Iniesta RR. The evolution of nutritional care in children and young people with acute lymphoblastic leukaemia: a narrative review. J Hum Nutr Diet 2024. [PMID: 38185902 DOI: 10.1111/jhn.13273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/08/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Acute lymphoblastic leukaemia (ALL) is the most common paediatric malignancy in the world. Advances in treatment protocols have resulted in survival rates of >80% in most high-income countries (HIC); however, children and young people (CYP) with ALL continue to face significant nutrition-related challenges during treatment. METHODS This narrative review outlines the changing landscape of treatment and survivorship for CYP with ALL and the advances in nutrition knowledge that call for changes to clinical nutrition practice. RESULTS The incidence of ALL has remained stable in HIC; however, there have been significant advances in survival over the past 30 years. Overweight and obesity are increasingly prevalent in CYP with ALL at diagnosis, during treatment and in survivorship. Coupled with poor diet quality, high-energy and saturated fat intakes, altered eating behaviours and inactivity, this necessitates the need for a shift in nutrition intervention. Undernutrition remains a concern for CYP with high-risk treatment protocols where oral or enteral nutrition support remains a cornerstone of maintaining nutrition status. CONCLUSIONS With improved treatment protocols and high survival rates, a shift to focusing on diet quality, prevention of excessive weight gain and obesity during treatment and survivorship is necessary.
Collapse
Affiliation(s)
- Amy L Lovell
- Department of Nutrition and Dietetics, The University of Auckland, Faculty of Medical and Health Sciences, Auckland, New Zealand
- Starship Blood and Cancer Centre, Starship Child Health, Auckland, New Zealand
| | - Breeana Gardiner
- Department of Nutrition and Dietetics, Great Ormond Street Hospital NHS Foundation Trust, London, UK
| | - Louise Henry
- Department of Nutrition and Dietetics, Royal Marsden NHS Foundation Trust, Surrey, UK
| | - Jessica M Bate
- Department of Paediatric Oncology, Southampton Children's Hospital, Southampton, UK
| | - Mark F H Brougham
- Department of Haematology and Oncology, Royal Hospital for Sick Children, Edinburgh, UK
| | - Raquel Revuelta Iniesta
- Children's Health and Exercise Research Centre (CHERC), Faculty of Health and Life Sciences, Public Health and Sport Sciences, Medical School, St Luke's Campus, University of Exeter, Exeter, UK
- Child Life and Health, University of Edinburgh, Edinburgh, UK
| |
Collapse
|
5
|
Belsky JA, Stanek JR, Rose MJ. Investigating the safety and feasibility of osteopathic medicine in the pediatric oncology outpatient setting. J Osteopath Med 2022; 122:423-429. [PMID: 35421288 DOI: 10.1515/jom-2021-0246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 03/22/2022] [Indexed: 11/15/2022]
Abstract
CONTEXT Pediatric patients receiving chemotherapy experience unwanted therapy-induced side effects, commonly constipation and pain that diminish quality of life. To date, few studies have investigated the safety and feasibility of osteopathic manipulative treatment (OMT) in pediatric oncology. OBJECTIVES The primary objective of this study is to investigate the safety and feasibility of OMT in pediatric oncology outpatient clinics. METHODS This is a single institutional pilot study evaluating children aged ≥2-21 years receiving chemotherapy for an oncological diagnosis at Nationwide Children's Hospital (NCH). Permission was obtained from the NCH Institutional Review Board. Participants were enrolled for 8 weeks and received weekly OMT. OMT was deemed feasible by participating in six out of eight weekly treatments, and safety was assessed through adverse event grading per Common Terminology Criteria for Adverse Events (CTCAE). During the clinic visit, patients answered validated surveys on constipation (Bristol Stool Scale) and pain (FACES Scale) pre/post-OMT. Feasibility was analyzed utilizing a one-sided exact binomial test while validated tools and adverse events were summarized descriptively. RESULTS A total of 23 patients were enrolled, with 21 included in feasibility analyses. The majority of the patients were female (n=13, 61.9%), with a median age of 12 years at enrollment (range, 2.7-20.8 years). There were no serious adverse events attributed to OMT intervention, and among the patients assessed for feasibility, 100% of them participated in at least two-thirds of their weekly OMT treatments, meeting our defined feasibility criteria. The intervention lasted an average of 14.2 min (range, 7.2-19.2 min). There were no FACES or Bristol Stool Scale scores that correlated with worsening pain on constipation post-OMT intervention. CONCLUSIONS Pediatric oncology patients were feasibly and safely able to receive OMT during a regularly scheduled chemotherapy visit. The limitations include the small sample size. These findings support the need to further investigate the safety and feasibility, as well as efficacy, of OMT in the pediatric oncology clinical setting.
Collapse
Affiliation(s)
- Jennifer A Belsky
- Division of Pediatric Hematology/Oncology/BMT, Riley Hospital for Children, Indianapolis, IN, USA.,Department of Pediatrics, Indiana University, Indianapolis, IN, USA
| | - Joseph R Stanek
- Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, OH, USA
| | - Melissa J Rose
- Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, OH, USA.,Department of Pediatrics, The Ohio State University, Columbus, OH, USA
| |
Collapse
|
6
|
Runco DV, Stanek JR, Yeager ND, Belsky JA. Malnutrition identification and management variability: An administrative database study of children with solid tumors. JPEN J Parenter Enteral Nutr 2022; 46:1559-1567. [PMID: 35040171 PMCID: PMC9544103 DOI: 10.1002/jpen.2329] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/08/2021] [Accepted: 01/06/2022] [Indexed: 11/29/2022]
Abstract
Background Malnutrition during cancer treatment increases treatment‐related morbidity and mortality. Our study better characterizes variability in malnutrition identification and treatment by examining nutrition‐related diagnoses and support for children with central nervous system (CNS) and non‐CNS solid tumors during therapy. We examined diagnosis of malnutrition, use of tube feeding or parenteral nutrition (PN), and appetite stimulants. Methods We retrospectively reviewed 0 to 21‐year‐old patients in the Pediatric Health Information System from 2015 to 2019. Patients were classified as having (1) billed malnutrition diagnosis, (2) malnutrition diagnosis or using PN and enteral nutrition (“functional malnutrition”), and (3) any previous criteria or prescribed appetite stimulants (“possible malnutrition”), as well as associated risk factors. Results Among 13,375 unique patients, CNS tumors were most common (24.4%). Overall, 26.5% of patients had malnutrition diagnoses, 45.4% met functional malnutrition criteria, and 56.0% had possible malnutrition. Patients with adrenal tumors had highest billed, functional, and possible malnutrition (36.6%, 64.1%, and 69.4%, respectively) followed by CNS tumors (29.1%, 52.4%, and 64.1%). Patients with adrenal tumors had highest rates of PN use (47.4%) and those with CNS tumors had the highest tube feeding use (26.8%). Hospital admissions with malnutrition had a longer hospital length of stay (LOS) (6 vs 3 days, P < 0.0001), more emergency department admissions (24.4% vs 21.8%, P < 0.0001), and more opioid use (58.6% vs 41.4%, P < 0.0001). Conclusions Variability in malnutrition diagnoses hinders clinical care and nutrition research in pediatric oncology. Improving disease‐specific recognition and treatment of malnutrition can target nutrition support, ensure appropriate reimbursement, and potentially improve outcomes for children with solid tumors.
Collapse
Affiliation(s)
- Daniel V Runco
- Indiana University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology/Oncology
| | - Joseph R Stanek
- Division of Pediatric Hematology/Oncology/Bone and Marrow Transplant, Nationwide Children's Hospital, Columbus, OH.,Biostatistics Resource at Nationwide Children's Hospital, Columbus, Ohio
| | - Nicholas D Yeager
- Division of Pediatric Hematology/Oncology/Bone and Marrow Transplant, Nationwide Children's Hospital, Columbus, OH.,Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Jennifer A Belsky
- Indiana University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology/Oncology
| |
Collapse
|
7
|
Belsky JA, Batra S, Stanek JR, O'Brien SH. Secondary impacts of constipation in acute lymphoblastic leukemia in U.S. children's hospitals. Pediatr Blood Cancer 2021; 68:e29336. [PMID: 34490990 DOI: 10.1002/pbc.29336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/04/2021] [Accepted: 08/22/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Childrenwith acute lymphoblastic leukemia (ALL) suffer a litany of chemotherapy-induced side effects. Constipation secondary to vinca alkaloids, psychological stressors, and opioid use are common issues for children newly diagnosed with leukemia. This study investigated the morbidity associated with constipation including infections, mucositis, and healthcare utilization in hospitalized children with ALL receiving induction chemotherapy. METHODS We analyzed data from 48 children's hospitals in the Pediatric Health Information System, extracting patients 1-21 years of age with ALL, hospitalized for induction from October 2015 through December 2019. Data were analyzed using nonparametric statistics, and comparisons of outcomes between those with and without constipation were presented as adjusted odds ratios (aOR). RESULTS We identified 2586 (56%) patients with constipation out of a total of 4622 unique ALL patients in induction. Compared to patients without constipation during induction, patients with constipation were significantly more likely to have mucositis (aOR = 2.30; p = 0.0010), perirectal issues (aOR = 3.21; p = 0.0092), or abdominal radiograph exposure (aOR = 2.40; p < 0.0001). The median length of induction hospitalization was significantly greater in those with constipation compared to those without constipation (10 days vs. 8 days; p < 0.0001). CONCLUSIONS Children with ALL suffering from constipation during induction therapy have increased length of stay, mucositis, imaging, and overall healthcare utilization compared to children without constipation. Further research should explore the causative relationship between constipation and infections. Increased attention should be given to constipation management in patients with ALL at the start of induction therapy, particularly in patients with complications or prolonged hospitalizations.
Collapse
Affiliation(s)
- Jennifer A Belsky
- Section of Pediatric Hematology Oncology, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana, USA
| | - Sandeep Batra
- Section of Pediatric Hematology Oncology, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Riley Hospital for Children at Indiana University Health, Indianapolis, Indiana, USA
| | - Joseph R Stanek
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Sarah H O'Brien
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio, USA.,Department of Pediatrics, The Ohio State University, Columbus, Ohio, USA
| |
Collapse
|
8
|
Hecht SL, Quach A, Gao D, Brazell A, Beltran G, Holbrook S, Gore L, Iguchi N, Malykhina A, Wilcox D, Cost NG. A prospective survey study of lower urinary tract dysfunction in childhood cancer survivors after vincristine and/or doxorubicin chemotherapy. Pediatr Blood Cancer 2021; 68:e29226. [PMID: 34245214 PMCID: PMC8384667 DOI: 10.1002/pbc.29226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/26/2021] [Accepted: 06/17/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND Two chemotherapeutic agents used widely in pediatric oncology are vincristine (VCR) and doxorubicin (DOX), which may cause neuropathy and myopathy, respectively. The study hypothesis is that neurotoxic effects of VCR and/or myotoxic effects of DOX affect bladder physiology and manifest clinically as lower urinary tract dysfunction (LUTD). PROCEDURE Based on a priori power analysis, 161 children divided evenly by gender were recruited. Children aged 5-10 years completed the dysfunctional voiding scoring system (DVSS) survey. The study cohort comprised cancer survivors treated with VCR and/or DOX. Healthy controls were recruited from well-child clinic visits. Exclusion criteria included pelvic-based malignancy, pelvic irradiation, pre-existing LUTD, neurologic abnormalities, and treatment with cyclophosphamide/ifosfamide. DVSS scores and presence of LUTD, defined as DVSS scores above gender-specific thresholds (males ≥9, females ≥6), were compared across cohorts. RESULTS Median DVSS scores were higher in the study cohort (6 vs. 4, p = .003). Moreover, children in the study cohort were more likely to exceed threshold scores for LUTD (38.8% vs. 21%, p = .014; OR 1.8). Subanalysis by gender revealed female cancer survivors are more likely to report LUTD than controls (57.5% vs. 30%, p = .013, OR 1.9). This did not hold true for males (20% vs. 12.2%, p = .339). CONCLUSIONS Childhood cancer survivors who received VCR and/or DOX reported higher rates of LUTD than controls. Female cancer survivors appear more likely to suffer from LUTD than males. Further study with a positive control cohort of cancer survivors who received non-VCR, non-DOX chemotherapy is underway to elucidate the contribution of a cancer diagnosis to LUTD.
Collapse
Affiliation(s)
- Sarah L. Hecht
- Department of Pediatric Urology, Doernbecher Children’s Hospital, Oregon Health & Science University, Portland, OR
| | - Alan Quach
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Dexiang Gao
- Department of Biostatistics and Informatics, University of Colorado School of Public Health, Aurora, CO
| | - Andrew Brazell
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Gemma Beltran
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Sheryl Holbrook
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Lia Gore
- Department of Pediatrics, Division of Hematology/Oncology/Bone Marrow Transplant, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Nao Iguchi
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Anna Malykhina
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Duncan Wilcox
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO
| | - Nicholas G. Cost
- Department of Pediatric Urology, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, CO,Corresponding author: Nicholas G. Cost, MD, , 13123 E 16 Ave Box 463, Aurora, CO 80045, Tel: 720-777-5084, Fax: 720-777-7370
| |
Collapse
|