Research Topics
| Natasha WiebeSummaryAffiliation: University of Alberta Country: Canada Publications
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Detail Information
Publications
A systematic review identifies a lack of standardization in methods for handling missing variance dataNatasha Wiebe
Department of Medicine, Division of Nephrology, University of Alberta, Rm 4048, Research Transition Facility, 8308 114 Street, Edmonton, Alberta, Canada T6G 2E1
J Clin Epidemiol 59:342-53. 2006..To describe and critically appraise available methods for handling missing variance data in meta-analysis (MA)...
Using proteinuria and estimated glomerular filtration rate to classify risk in patients with chronic kidney disease: a cohort studyMarcello Tonelli
University of Alberta, Edmonton, Canada
Ann Intern Med 154:12-21. 2011..The staging system for chronic kidney disease relies almost exclusively on estimated glomerular filtration rate (eGFR), although proteinuria is also associated with adverse outcomes...
Efficacy of statins for primary prevention in people at low cardiovascular risk: a meta-analysisMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, Alta
CMAJ 183:E1189-202. 2011..We did a systematic review of randomized trials to assess the efficacy and harms of statins in these individuals...
Relation between kidney function, proteinuria, and adverse outcomesBrenda R Hemmelgarn
Department of Medicine, University of Calgary, Calgary, Alberta, Canada
JAMA 303:423-9. 2010..Although proteinuria is also associated with adverse outcomes, it is not used to refine risk estimates of adverse events in this current system...
Economic evaluation of erythropoiesis-stimulating agents for anemia related to cancerScott Klarenbach
Department of Medicine, University of Alberta Edmonton, Alberta, Canada
Cancer 116:3224-32. 2010..Concerns about toxicity have led to more restrictive recommendations for ESA use; however, the incremental costs and benefits of such a strategy are unknown...
Association between proximity to the attending nephrologist and mortality among patients receiving hemodialysisMarcello Tonelli
Division of Nephrology and Transplant Immunology, Department of Medicine, University of Alberta, Edmonton, Alta
CMAJ 177:1039-44. 2007..We investigated whether patients receiving hemodialysis who live farther from their attending nephrologist are more likely to die than those who live closer...
A novel technique to optimize facility locations of new nephrology services for remote areasBharati Ayyalasomayajula
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Clin J Am Soc Nephrol 6:2157-64. 2011....
Adding specialized clinics for remote-dwellers with chronic kidney disease: a cost-utility analysisNatasha Wiebe
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Clin J Am Soc Nephrol 7:24-34. 2012..This study aimed to determine whether opening a new clinic in a remote region would be a cost-effective means of improving care for remote-dwellers with CKD...
Access to kidney transplantation among remote- and rural-dwelling patients with kidney failure in the United StatesMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, AB T6B 2B7, Canada
JAMA 301:1681-90. 2009..US residents with end-stage renal disease (ESRD) may live far away from the closest transplant center, which could compromise their access to kidney transplantation...
Dialysate potassium and risk of death in chronic hemodialysis patientsGhassan Al-Ghamdi
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
J Nephrol 23:33-40. 2010..Few data guide the prescription of dialysate potassium (dK) in hemodialysis, which is usually prescribed empirically on the basis of predialysis serum potassium levels...
Differences in use of peritoneal dialysis and survival among East Asian, Indo Asian, and white ESRD patients in CanadaBrenda R Hemmelgarn
Department of Medicine, Division of Nephrology, University of Calgary, Canada
Am J Kidney Dis 48:964-71. 2006..Racial differences in health outcomes in general are well documented; however, few studies examined the impact of East Asian and Indo Asian race on choice of dialytic modality and survival among patients with end-stage renal disease (ESRD)...
Kidney stones and kidney function loss: a cohort studyR Todd Alexander
7 129 Clinical Science Building, University of Alberta, 8440 112 Street, Edmonton, Alberta T6B 2G3, Canada
BMJ 345:e5287. 2012..To investigate whether the presence of kidney stones increase the risk of end stage renal disease (ESRD) or other adverse renal outcomes...
Children in reviews: methodological issues in child-relevant evidence synthesesKristie Cramer
Alberta Research Centre for Child Health Evidence, Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
BMC Pediatr 5:38. 2005....
Economic evaluation of continuous renal replacement therapy in acute renal failureScott Klarenbach
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Int J Technol Assess Health Care 25:331-8. 2009..Controversy exists regarding the optimal method of providing dialysis in critically ill patients with acute renal failure. We sought to determine the cost-effectiveness of treatment strategies...
Treatment in the pediatric emergency department is evidence based: a retrospective analysisKellie L Waters
Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
BMC Pediatr 6:26. 2006..Further, we wished to ascertain what percentage of evidence for treatment provided in the PED comes from pediatric studies...
Benefits and harms of erythropoiesis-stimulating agents for anemia related to cancer: a meta-analysisMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton
CMAJ 180:E62-71. 2009..However, their safety and effectiveness is controversial. We did a systematic review of the clinical efficacy and harms of these agents in adults with anemia related to cancer or chemotherapy...
Relation between alkaline phosphatase, serum phosphate, and all-cause or cardiovascular mortalityMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Circulation 120:1784-92. 2009..Higher levels of serum alkaline phosphatase (AlkP) are associated with excess mortality in dialysis patients, but whether AlkP is associated with adverse outcomes among people without kidney failure is unknown...
Clinical decision support to improve blood pressure control in hemodialysis patients: a nonrandomized controlled trialStephanie Thompson
Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada
J Nephrol 25:944-53. 2012..Computer-based clinical decision support aims to improve the quality of patient care. The utility of decision support for improving blood pressure control in hemodialysis patients is unknown...
Trace elements in hemodialysis patients: a systematic review and meta-analysisMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
BMC Med 7:25. 2009..We conducted a systematic review to summarize existing literature on trace element status in hemodialysis patients...
Oral rehydration versus intravenous therapy for treating dehydration due to gastroenteritis in children: a meta-analysis of randomised controlled trialsSteven Bellemare
Alberta Research Centre for Child Health Evidence, Department of Pediatrics, University of Alberta, 2C3, 00 WMC, Edmonton, Alberta, Canada, T6G 2R7
BMC Med 2:11. 2004..We conducted a systematic review of randomised controlled trials (RCTs) to compare ORT and intravenous therapy (IVT) for the treatment of dehydration secondary to acute gastroenteritis in children...
Design and implementation of the Canadian Kidney Disease Cohort Study (CKDCS): A prospective observational study of incident hemodialysis patientsAminu K Bello
Department of Medicine, University of Alberta, Edmonton, Canada
BMC Nephrol 12:10. 2011..This study focuses on delineating potentially reversible determinants of adverse outcomes that occur in patients receiving dialysis for end-stage renal disease (ESRD)...
Overview of the Alberta Kidney Disease NetworkBrenda R Hemmelgarn
Department of Medicine, University of Calgary, Calgary, Alberta, Canada
BMC Nephrol 10:30. 2009..The Alberta Kidney Disease Network is a collaborative nephrology research organization based on a central repository of laboratory and administrative data from the Canadian province of Alberta...
Renal replacement therapy in patients with acute renal failure: a systematic reviewNeesh Pannu
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
JAMA 299:793-805. 2008..Acute renal failure requiring dialytic support is associated with a high risk of mortality and substantial morbidity...
Health care costs of peritoneal dialysis technique failure and dialysis modality switchingBetty K Chui
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Am J Kidney Dis 61:104-11. 2013..Although there is a strong economic rationale in favor of peritoneal dialysis (PD) over hemodialysis (HD), the potentially costly effect of PD technique failure is an important consideration in PD program promotion that is unknown...
A systematic review on the effect of sweeteners on glycemic response and clinically relevant outcomesNatasha Wiebe
Department of Medicine, 13 103 Clinical Sciences Building, University of Alberta, Edmonton, Alberta, T6G 2G3 Canada
BMC Med 9:123. 2011..The major metabolic complications of obesity and type 2 diabetes may be prevented and managed with dietary modification. The use of sweeteners that provide little or no calories may help to achieve this objective...
Glycemic control and the risk of death in 1,484 patients receiving maintenance hemodialysisSabin Shurraw
Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada
Am J Kidney Dis 55:875-84. 2010..We aim to determine whether worse glycemic control, measured using serum glucose and hemoglobin A(1c) (HbA(1c)) levels, is independently associated with higher mortality in patients undergoing maintenance hemodialysis...
Heat loss prevention: a systematic review of occlusive skin wrap for premature neonatesKristie Cramer
Complementary and Alternative Research and Education Program, Department of Pediatrics, University of Alberta, Alberta, Canada
J Perinatol 25:763-9. 2005..76, 95% CI 0.51, 1.13). CONCLUSIONS:The findings suggest that occlusive skin wrap prevents heat loss in premature infants. The meta-analysis lacked the power to provide definitive results regarding the effect of wrap on mortality...
Meta-analyses of safety data: a comparison of exact versus asymptotic methodsBen Vandermeer
University of Alberta Evidence Based Practice Centre, Alberta Research Centre for Health Evidence
Stat Methods Med Res 18:421-32. 2009..Asymptotic methods will not always be a good approximation for exact methods in safety meta-analyses. Event rates and number of studies should be closely examined when choosing the statistical method for combining rare event data...
Bariatric surgery: a systematic review of the clinical and economic evidenceRaj Padwal
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
J Gen Intern Med 26:1183-94. 2011..Use of bariatric surgery for severe obesity has increased dramatically...
A meta-analysis of randomized controlled trials evaluating the efficacy of epinephrine for the treatment of acute viral bronchiolitisLisa Hartling
Alberta Research Center for Child Health Evidence, Department of Pediatrics, University of Alberta, Edmonton, USA
Arch Pediatr Adolesc Med 157:957-64. 2003..There is insufficient evidence to support the use of epinephrine among inpatients. Large, multicentered trials are required before routine use among outpatients can be strongly recommended...
Acyclovir for treating varicella in otherwise healthy children and adolescents: a systematic review of randomised controlled trialsTerry P Klassen
Alberta Research Center for Child Health Evidence, Department of Pediatrics, University of Alberta, 2C3, 00 WMC, Edmonton, Alberta, T6G 2R7, Canada
BMC Pediatr 2:9. 2002..We conducted a systematic review of randomised controlled trials that evaluated acyclovir for the treatment of chickenpox in otherwise healthy children...
Basics of systematic reviews and meta-analyses for the nephrologistAminu K Bello
Division of Nephrology, University of Alberta, Edmonton, AB, Canada
Nephron Clin Pract 119:c50-60; discussion c61. 2011....
Ultrasound monitoring to detect access stenosis in hemodialysis patients: a systematic reviewMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
Am J Kidney Dis 51:630-40. 2008..Observational studies indicate that routine measurements of access blood flow and use of Doppler ultrasound improve vascular access outcomes in hemodialysis patients, but randomized trials reached conflicting conclusions...
Statins for improving renal outcomes: a meta-analysisSabrina Sandhu
Department of Medicine, University of Alberta, Edmonton, Alberta T6B 2B7, Canada
J Am Soc Nephrol 17:2006-16. 2006..17 to 0.98). Statin therapy seems to reduce proteinuria modestly and results in a small reduction in the rate of kidney function loss, especially in populations with cardiovascular disease...
Meta-analysis: beta-blocker dose, heart rate reduction, and death in patients with heart failureFinlay A McAlister
University of Alberta Hospital, 2F1 21 Walter Mackenzie Health Sciences Centre, 8440 112 Street, Edmonton, Alberta, Canada
Ann Intern Med 150:784-94. 2009..Guidelines recommend that patients with heart failure receive beta-blockers in doses used in the trials that have proven their efficacy. Although the adverse effects of beta-blockade are dose-related, it is unclear whether the benefits are...
Residence location and likelihood of kidney transplantationMarcello Tonelli
Division of Nephrology and Transplant Immunology, Department of Medicine, University of Alberta, Edmonton, Alta
CMAJ 175:478-82. 2006..Within each region we also determined whether distance from the closest transplant centre was associated with the likelihood of transplantation...
Abstracts of randomized controlled trials presented at the society for pediatric research meeting: an example of publication biasTerry P Klassen
Department of Pediatrics, University of Alberta, 2C3 67 Walter C Mackenzie Centre, Edmonton, Alberta, Canada T6G 2B7
Arch Pediatr Adolesc Med 156:474-9. 2002..The increased interest in meta-analyses has highlighted the need to identify the totality of evidence when addressing treatment questions...
Systematic review and meta-analysis: renal safety of tenofovir disoproxil fumarate in HIV-infected patientsRyan D Cooper
Department of Medicine, University of Alberta, Edmonton, Canada
Clin Infect Dis 51:496-505. 2010..However, an increasing number of case reports suggest that TDF use may be associated with significant nephrotoxicity. Our objective was to determine the renal safety of TDF-containing ART regimens for HIV-infected individuals...
Prophylaxis strategies for contrast-induced nephropathyNeesh Pannu
Department of Medicine, Division of Nephrology, University of Alberta, Edmonton
JAMA 295:2765-79. 2006..Contrast-induced nephropathy is associated with significant economic and clinical consequences, including prolonged hospitalization, the requirement for dialysis, and an increased risk of death...
Chronic kidney disease and mortality risk: a systematic reviewMarcello Tonelli
Department of Medicine, University of Alberta, Edmonton, Alberta T6B 2B7, Canada
J Am Soc Nephrol 17:2034-47. 2006..0 in 71% of cohorts. This review supports current guidelines that identify individuals with CKD as being at high risk for cardiovascular mortality. Determining which interventions best offset this risk remains a health priority...
Systematic review: cardiac resynchronization in patients with symptomatic heart failureFinlay A McAlister
The University of Alberta and Capital Health Evidence based Practice Center, Edmonton, Alberta, Canada
Ann Intern Med 141:381-90. 2004..Even with optimal pharmacotherapy, symptomatic heart failure is associated with substantial morbidity and mortality...
Systematic review of the clinical efficacy and safety of sevelamer in dialysis patientsMarcello Tonelli
Foothills Medical Centre, 1403 29th Street NW, Calgary, Alberta T2N 2T9, Canada
Nephrol Dial Transplant 22:2856-66. 2007..The relative effectiveness and safety of sevelamer for treatment of hyperphosphataemia in dialysis patients is uncertain, as compared with calcium-based phosphate binders...
Practice variation among pediatric emergency departments in the treatment of bronchiolitisAmy C Plint
Department of Pediatrics, University of Ottawa, 401 Smyth Avenue, Ottawa, Ontario, Canada K1H 8L1
Acad Emerg Med 11:353-60. 2004....
Which resources should be used to identify RCT/CCTs for systematic reviews: a systematic reviewEllen T Crumley
HealthInfo and Searching Practice Inc, Edmonton, Canada
BMC Med Res Methodol 5:24. 2005..This systematic review was conducted in order to assess the value of different resources to identify trials for inclusion in systematic reviews...
Tissue adhesives for traumatic lacerations: a systematic review of randomized controlled trialsKen J Farion
Department of Pediatrics, University of Ottawa, Children s Hospital of Eastern Ontario, Ottawa, Canada
Acad Emerg Med 10:110-8. 2003..To summarize the best available evidence for the effect of tissue adhesives (TAs) in managing traumatic lacerations in children and adults...
