Opioid Analgesics and Adverse Outcomes among Hemodialysis Patients

Background and objectivesPatients on hemodialysis frequently experience pain and may be particularly vulnerable to opioid-related complications. However, data evaluating the risks of opioid use in patients on hemodialysis are limited.Design, setting, participants, & measurementsUsing the US Renal Data System, we conducted a cohort study evaluating the association between opioid use (modeled as a time-varying exposure and expressed in standardized oral morphine equivalents) and time to first emergency room visit or hospitalization for altered mental status, fall, and fracture among 140,899 Medicare-covered adults receiving hemodialysis in 2011. We evaluated risk according to average daily total opioid dose (>60 mg, ≤60 mg, and per 60-mg dose increment) and specific agents (per 60-mg dose increment).ResultsThe median age was 61 years old, 52% were men, and 50% were white. Sixty-four percent received opioids, and 17% had an episode of altered mental status (15,658 events), fall (7646 events), or fracture (4151 events) in 2011. Opioid use was associated with risk for all outcomes in a dose-dependent manner: altered mental status (lower dose: hazard ratio, 1.28; 95% confidence interval, 1.23 to 1.34; higher dose: hazard ratio, 1.67; 95% confidence interval, 1.56 to 1.78; hazard ratio, 1.29 per 60 mg; 95% confidence interval, 1.26 to 1.33), fall (lower dose: hazard ratio, 1.28; 95% confidence interval, 1.21 to 1.36; higher dose: hazard ratio, 1.45; 95% confidence interval, 1.31 to 1.61; hazard ratio, 1.04 per 60 mg; 95% confidence interval, 1.03 to 1.05), and fracture (lower dose: hazard ratio, 1.44; 95% confidence interval, 1.33 to 1.56; higher dose: hazard ratio, 1.65; 95% confidence interval, 1.44 to 1.89; hazard ratio, 1.04 per 60 mg; 95% confidence interval, 1.04 to 1.05). All agents were associated with a significantly higher hazard of altered mental status, and several agents were associated with a significantly higher hazard of fall and fracture.ConclusionsOpioids were associated with adverse outcomes in patients on hemodialysis, and this risk was present even at lower dosing and for agents that guidelines have recommended for use.

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Association of proteinuria and incident atrial fibrillation in patients with diabetes mellitus: a population-based senior cohort study

Scientific Reports ◽

10.1038/s41598-021-96483-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Juntae Kim ◽

Pil-Sung Yang ◽

Byoung-Eun Park ◽

Tae Soo Kang ◽

Seong-Hoon Lim ◽

...

Keyword(s):

Diabetes Mellitus ◽

Atrial Fibrillation ◽

Confidence Interval ◽

Population Based ◽

Hazard Ratio ◽

Diabetic Patients ◽

Dependent Manner ◽

Dipstick Test ◽

Patients With Diabetes ◽

Urine Dipstick Test

AbstractDiabetes mellitus (DM) is considered an independent risk factor for atrial fibrillation (AF). The excess risk in relation to the presence of proteinuria has not been well elucidated. Our aim was to determine the association between the incidence of AF and proteinuria in diabetic population. A total of 240,499 individuals aged ≥ 60 years from the Korea National Health Insurance Service-Senior cohort from 2004 to 2014 were included. 4.2% of individuals with DM and 3.7% of controls were diagnosed with AF during a median follow-up period of 7.2 years. Amongst controls (participants without proteinuria and DM), DM only, proteinuria only, and DM with proteinuria groups, the crude incidences of AF were 0.58, 0.70, 0.96, 1.24 per 100 person-years respectively. Compared with controls, the weighted risk of AF was increased by 11% (hazard ratio = 1.11, 95% confidence interval = 1.02–1.20, P = .001), 48% (hazard ratio = 1.48, 95% confidence interval = 1.30–1.69, P < .001), and 66% (hazard ratio = 1.66, 95% confidence interval = 1.26–2.18, P < .001) in the DM only, proteinuria only, and DM with proteinuria groups, respectively (P for trend < .001). Degree of proteinuria in diabetic patients was associated with a significantly higher rate of incident AF in dose dependent manner. Thus, assessing proteinuria by a simple urine dipstick test could provide a useful adjunct to risk assessment for AF in elderly population with DM.

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The impact of frailty and aging on prognosis in patients with heart failure with preserved ejection fraction – insights from PURSUIT-HFpEF registry

European Heart Journal ◽

10.1093/ehjci/ehaa946.0961 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

M Okada ◽

K Inoue ◽

T Onishi ◽

K Iwakura ◽

T Yamada ◽

...

Keyword(s):

Heart Failure ◽

Confidence Interval ◽

Ejection Fraction ◽

Hazard Ratio ◽

Adverse Outcomes ◽

Funding Source ◽

Preserved Ejection Fraction ◽

Clinical Endpoint ◽

Patients With Heart Failure

Abstract Introduction Frailty and aging are two common conditions both associated with increased vulnerability to stressful events with high risk of adverse outcomes. Purpose To evaluate the association between frailty and aging and their impacts on clinical outcome in patients with heart failure with preserved ejection fraction (HFpEF). Methods Analysis was performed from a prospective multicenter observational registry for HFpEF (PURSUIT-HFpEF Registry) conducted in the Osaka region of Japan. A total of 757 patients hospitalized for acute heart failure (diagnosed by using Framingham criteria) met the inclusion criteria: a left ventricular ejection fraction ≥50% and brain natriuretic peptide ≥100pg/ml. We included 483 patients (age, 80±9 years; men, 45%; atrial fibrillation, 35%) whose follow-up data after survival discharge were available. Patients' frailty and aging were evaluated using the clinical frailty scale (CFS) and age quartiles (Q1: <76 years (n=122), Q2: 76–82 years (n=111), Q3: 82–87 years (n=127), Q4: >87 years (n=123)), respectively. The primary clinical endpoint was defined as the composite of death, re-hospitalization for heart failure, and cerebrovascular accident. Results The median (interquartile range) CFS rating was 3 (2–5), and there was a little correlation between CFS rating and age (r2=0.16, p<0.001). The prevalence of frailty, defined as a CFS rating >4 (n=132), was positively correlated with age quartiles (Q1: 9.0%, Q2: 21.4%, Q3: 29.9%, Q4: 48.0%, p<0.001). During the median follow-up period 396 days (interquartile range, 344–698) after discharge, the clinical endpoint was observed in 172 patients. The incidence was higher in patients with frailty than those without it (49.6% vs. 30.4%, log-rank p<0.001). It was also correlated with age quartiles (Q1: 23.0%, Q2: 34.2%, Q3: 36.2%, Q4: 48.8%, log-rank p=0.001). Multivariate Cox regression analysis revealed that frailty (hazard ratio, 1.52; 95% confidence interval, 1.09–2.10; p=0.013) and age (hazard ratio per quartile increase, 1.24; 95% confidence interval, 1.07–1.43; p=0.004) were both associated with the clinical endpoint. Subgroup analysis in 352 patients without frailty also revealed the significant impact of age on the endpoint (1.26; 1.06–1.51; p=0.008). However, in 131 patients with frailty, there was no significant impact of age on the endpoint (1.16; 0.90–1.51; p=0.25). Conclusions Frailty was common and was associated with aging in HFpEF patients. Although they were both associated with unfavorable events, aging was no longer a significant predictor of adverse outcomes under the frailty conditions. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Roche Diagnostics K.K. and Fuji Film Toyama Chemical Co. Ltd.

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Nocturnal Systolic Hypertension and Adverse Prognosis in Patients with CKD

Clinical Journal of the American Society of Nephrology ◽

10.2215/cjn.14420920 ◽

2021 ◽

pp. CJN.14420920

Author(s):

Qin Wang ◽

Yu Wang ◽

Jinwei Wang ◽

Luxia Zhang ◽

Ming-Hui Zhao ◽

...

Keyword(s):

Confidence Interval ◽

Kidney Failure ◽

Cardiovascular Events ◽

Systolic Hypertension ◽

Cox Regression ◽

Cardiovascular Outcomes ◽

Hazard Ratio ◽

Adverse Outcomes ◽

Nocturnal Hypertension ◽

Diastolic Hypertension

Background and objectivesNocturnal hypertension is associated with adverse outcomes in patients with CKD. However, the individual association of entities of nocturnal hypertension according to achievement of systolic and/or diastolic BP goals with kidney failure and cardiovascular outcomes of CKD is not clear.Design, setting, participants, & measurementsOur study analyzed data from participants in the Chinese Cohort Study of Chronic Kidney Disease. Nocturnal hypertension was categorized into three entities: isolated nocturnal diastolic hypertension with diastolic BP ≥70 mm Hg and systolic BP <120 mm Hg, isolated nocturnal systolic hypertension with systolic BP ≥120 mm Hg and diastolic BP <70 mm Hg, and nocturnal systolic-diastolic hypertension with both systolic BP ≥120 mm Hg and diastolic BP ≥70 mm Hg. Associations of nocturnal hypertension entities with kidney failure and cardiovascular outcomes were evaluated by Cox regression.ResultsIn total, 2024 patients with CKD stages 1–4 were included in our analysis (mean age, 49±14 years; 57% men; eGFR=51±29 ml/min per 1.73 m2; proteinuria: 0.9 [0.4–2.1] g/d). Among them, 1484 (73%) patients had nocturnal hypertension, with the proportions of 26%, 8%, and 66% for isolated nocturnal diastolic hypertension, isolated nocturnal systolic hypertension, and nocturnal systolic-diastolic hypertension, respectively. Three hundred twenty kidney events and 148 cardiovascular events were recorded during median follow-up intervals of 4.8 and 5.0 years for kidney and cardiovascular events, respectively. After adjustment, isolated nocturnal systolic hypertension was associated with a higher risk for cardiovascular events (hazard ratio, 3.17; 95% confidence interval, 1.61 to 6.23). Nocturnal systolic-diastolic hypertension showed a higher risk for both kidney failure (hazard ratio, 1.71; 95% confidence interval, 1.17 to 2.49) and cardiovascular outcomes (hazard ratio, 2.19; 95% confidence interval, 1.24 to 3.86). No association was observed between isolated nocturnal diastolic hypertension with either kidney failure or cardiovascular events.ConclusionsNocturnal systolic hypertension, either alone or in combination with diastolic hypertension, is associated with higher risks for adverse outcomes in patients with CKD.

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Effect of Preoperative Opioid Use on Adverse Outcomes, Medical Spending, and Persistent Opioid Use Following Elective Total Joint Arthroplasty in the United States: A Large Retrospective Cohort Study of Administrative Claims Data

Pain Medicine ◽

10.1093/pm/pnz083 ◽

2019 ◽

Vol 21 (3) ◽

pp. 521-531 ◽

Cited By ~ 20

Author(s):

Meridith Blevins Peratikos ◽

Hannah L Weeks ◽

Andrew J B Pisansky ◽

R Jason Yong ◽

Elizabeth Ann Stringer

Keyword(s):

Length Of Stay ◽

Claims Data ◽

The United States ◽

Adverse Outcomes ◽

Unplanned Readmission ◽

Administrative Claims ◽

Opioid Use ◽

Opioid Prescription ◽

Opioid Dose ◽

Opioid Users

Abstract Objective Between 17% and 40% of patients undergoing elective arthroplasty are preoperative opioid users. This US study analyzed patients in this population to illustrate the relationship between preoperative opioid use and adverse surgical outcomes. Design Retrospective study of administrative medical and pharmaceutical claims data. Subjects Adults (aged 18+) who received elective total knee, hip, or shoulder replacement in 2014–2015. Methods A patient was a preoperative opioid user if opioid prescription fills occurred in two periods: 1–30 and 31–90 days presurgery. Zero-truncated Poisson (incidence rate ratio [IRR]), logistic (odds ratio [OR]), Cox (hazard ratio [HR]), and quantile regressions modeled the effects of preoperative opioid use and opioid dose, adjusted for demographics, comorbidities, and utilization. Results Among 34,792 patients (38% hip, 58% knee, 4% shoulder), 6,043 (17.4%) were preoperative opioid users with a median morphine equivalent daily dose of 32 mg. Preoperative opioid users had increased length of stay (IRR = 1.03, 95% CI = 1.02 to 1.05), nonhome discharge (OR = 1.10, 95% CI = 1.00 to 1.21), and 30-day unplanned readmission (OR = 1.43, 95% CI = 1.17 to 1.74); experienced 35% higher surgical site infection (HR = 1.35, 95% CI = 1.14 to 1.59) and 44% higher surgical revision (HR = 1.44, 95% CI = 1.21 to 1.71); had a median $1,084 (95% CI = $833 to $1334) increase in medical spend during the 365 days after discharge; and had a 64% lower rate of opioid cessation (HR = 0.34, 95% CI = 0.33 to 0.35) compared with patients not filling two or more prescriptions across periods. Conclusions Preoperative opioid users had longer length of stay, increased revision rates, higher spend, and persistent opioid use, which worsened with dose. Adverse outcomes after elective joint replacement may be reduced if preoperative opioid risk is managed through increased monitoring or opioid cessation.

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Postoperative respiratory depression after hysterectomy

Bosnian Journal of Basic Medical Sciences ◽

10.17305/bjbms.2020.5026 ◽

2020 ◽

Author(s):

Mariana L. Laporta ◽

Michelle O. Kinney ◽

Darrell R. Schroeder ◽

Juraj Sprung ◽

Toby N. Weingarten

Keyword(s):

Risk Factors ◽

Confidence Interval ◽

Respiratory Depression ◽

Oral Morphine ◽

Pulmonary Complications ◽

Postoperative Pulmonary Complications ◽

Opioid Dose ◽

Factors Associated ◽

Depression Risk ◽

Lower Body Weight

To investigate if sex-specific physiologic characteristics could impact postoperative respiratory depression risks in women, we studied incidence and risk factors associated with postoperative respiratory depression in a gynecologic surgical cohort. Only hysterectomies performed under general anesthesia from 2012 to 2017 were included to minimize interprocedural variability. Respiratory depression was defined as episodes of apnea, hypopnea, hypoxemia, pain-sedation mismatch, unplanned positive airway pressure device application, or naloxone administration in the post-anesthesia care unit. Multivariable logistic regression was used to explore the association with clinical characteristics. From 1,974 hysterectomies, 253 had postoperative respiratory depression, yielding an incidence of 128 (95% confidence interval, 114–144) per 1,000 surgeries. Risk factors associated with respiratory depression were older age (odds ratio 1.22 [95% confidence interval 1.02–1.46] per decade increase, p = 0.03), lower body weight (0.77 [0.62–0.94] per 10 kg/m2, p = 0.01), and higher intraoperative opioid dose (1.05 [1.01–1.09] per 10 mg oral morphine equivalents, p = 0.01); while sugammadex use was associated with a reduced risk (0.48 [0.30–0.75], p = 0.002). Respiratory depression was not associated with increased hospital stay, postoperative complications, or mortality. Postoperative respiratory depression risk in women increased with age, lower weight, and higher intraoperative opioids and decreased with sugammadex use; however, it was not associated with postoperative pulmonary complications.

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Gabapentin and Pregabalin Use and Association with Adverse Outcomes among Hemodialysis Patients

Journal of the American Society of Nephrology ◽

10.1681/asn.2018010096 ◽

2018 ◽

Vol 29 (7) ◽

pp. 1970-1978 ◽

Cited By ~ 31

Author(s):

Julie H. Ishida ◽

Charles E. McCulloch ◽

Michael A. Steinman ◽

Barbara A. Grimes ◽

Kirsten L. Johansen

Keyword(s):

Neuropathic Pain ◽

Mental Status ◽

Restless Legs Syndrome ◽

Cox Regression ◽

Altered Mental Status ◽

Adverse Outcomes ◽

Part D ◽

Restless Legs ◽

Optimal Dosing ◽

Concomitant Medications

Background Gabapentin and pregabalin are used to manage neuropathic pain, pruritus, and restless legs syndrome in patients on hemodialysis. These patients may be especially predisposed to complications related to these agents, which are renally cleared, but data regarding the risk thereof are lacking.Methods From the US Renal Data System, we identified 140,899 Medicare-covered adults receiving hemodialysis with Part D coverage in 2011. Using Cox regression models in which we adjusted for demographics, comorbidities, duration of exposure, number of medications, and use of potentially confounding concomitant medications, we investigated the association between gabapentin and pregabalin, modeled as separate time-varying exposures, and time to first emergency room visit or hospitalization for altered mental status, fall, and fracture. We evaluated risk according to daily dose categories: gabapentin (>0–100, >100–200, >200–300, and >300 mg) and pregabalin (>0–100 and >100 mg).Results In 2011, 19% and 4% of patients received gabapentin and pregabalin, respectively. Sixty-eight percent of gabapentin or pregabalin users had a diagnosis of neuropathic pain, pruritus, or restless legs syndrome. Gabapentin was associated with 50%, 55%, and 38% higher hazards of altered mental status, fall, and fracture, respectively, in the highest dose category, but even lower dosing was associated with a higher hazard of altered mental status (31%–41%) and fall (26%–30%). Pregabalin was associated with up to 51% and 68% higher hazards of altered mental status and fall, respectively.Conclusions Gabapentin and pregabalin should be used judiciously in patients on hemodialysis, and research to identify the most optimal dosing is warranted.

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Opioid use in Older Orthopedic Rehabilitation Inpatients: A Retrospective Study

10.21203/rs.3.rs-1118268/v1 ◽

2021 ◽

Author(s):

Aaron Jason Bilek ◽

Stephanie Cullen ◽

Carolyn Michelle Tan ◽

Qixuan Li ◽

Ella Huszti ◽

...

Keyword(s):

Older Adults ◽

Adult Population ◽

Oral Morphine ◽

Inpatient Rehabilitation ◽

Medication Administration ◽

Opioid Use ◽

Opioid Dose ◽

Orthopedic Rehabilitation ◽

Orthopedic Patients ◽

Opioid Users

Abstract Background: While there is much evidence about pain management for orthopedic patients in the immediate perioperative setting, little is known about how opioids are used during inpatient rehabilitation in the days and weeks that follow, particularly in older adults. A safe upper limit of 50 oral morphine equivalents (OME) is frequently cited in guidelines. This study’s objective is to characterize the use of opioids in an older adult population undergoing orthopedic rehabilitation. Methods: This is a retrospective observational study of adults aged ≥50 years old admitted for orthopedic rehabilitation between November 2019 and June 2021 at an academic rehabilitation hospital in Toronto, Canada. Acute care admissions preceding rehabilitation were for either a surgical or non-surgical orthopedic indication. Participants were divided into opioid-naïve individuals who received opioids, opioid-naïve individuals who did not receive opioids, and pre-existing chronic users of opioids. Demographic, clinical, and medication administration data were collected through the electronic health record and manual chart review. Average daily opioid dose for the first seven days of each stay was characterized using OME. Linear regression was used to assess for variables independently associated with opioid dose. Results: A total of 643 patients undergoing orthopedic rehabilitation were included: 125 (19.4%) involved chronic opioid users, 416 (64.7%) were opioid-naïve patients who received opioids, and 102 (15.9%) were opioid-naïve patients who did not receive opioids, with median age respectively of 72, 79, and 83. Median daily OME over the first week for chronic users was 30.3 and for opioid-naïve users was 6.9. Opioid dose was significantly positively associated with reported pain as defined by day 3 pain score and knee replacement; it was inversely associated with admission for a non-surgical indication and age. Conclusions: Opioids are frequently but heterogeneously used in older adults undergoing orthopedic rehabilitation. Median OME use in this cohort of older adults was substantially lower than the 50 OME threshold suggested in guidelines. Dedicated guidance for opioid use is warranted for this unique patient population.

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Risk Factors for In-hospital Mortality from Coronavirus Disease 2019 Infection Among Black Patients—An Urban Center Experience

Clinical Infectious Diseases ◽

10.1093/cid/ciaa1468 ◽

2020 ◽

Author(s):

Ashish Bhargava ◽

Mamta Sharma ◽

Kathleen Riederer ◽

Elisa Akagi Fukushima ◽

Susanna M Szpunar ◽

...

Keyword(s):

Risk Factors ◽

Hospital Mortality ◽

Mental Status ◽

Multivariable Analysis ◽

Case Fatality ◽

Altered Mental Status ◽

Adverse Outcomes ◽

Urban Hospital ◽

Duration Of Symptoms ◽

Black Patients

Abstract Background Racial disparities are central in the national conversation about coronavirus disease 2019 (COVID-19) , with Black/African Americans being disproportionately affected. We assessed risk factors for death from COVID-19 among Black inpatients at an urban hospital in Detroit, Michigan. Methods This was a retrospective, single-center cohort study. We reviewed the electronic medical records of patients positive for severe acute respiratory syndrome coronavirus 2 (the COVID-19 virus) on qualitative polymerase chain reaction assay who were admitted between 8 March 2020 and 6 May 2020. The primary outcome was in-hospital mortality. Results The case fatality rate was 29.1% (122/419). The mean duration of symptoms prior to hospitalization was 5.3 (3.9) days. The incidence of altered mental status on presentation was higher among patients who died than those who survived, 43% vs 20.0%, respectively (P < .0001). From multivariable analysis, the odds of death increased with age (≥60 years), admission from a nursing facility, Charlson score, altered mental status, higher C-reactive protein on admission, need for mechanical ventilation, presence of shock, and acute respiratory distress syndrome. Conclusions These demographic, clinical, and laboratory factors may help healthcare providers identify Black patients at highest risk for severe COVID-19–associated outcomes. Early and aggressive interventions among this at-risk population may help mitigate adverse outcomes.

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PREDICTING ADVERSE OUTCOMES IN ED PATIENTS USING THE CLINICAL FRAILTY SCALE AND A FRAILTY INDEX

Innovation in Aging ◽

10.1093/geroni/igz038.2875 ◽

2019 ◽

Vol 3 (Supplement_1) ◽

pp. S781-S782

Author(s):

Kenneth Rockwood ◽

Mohammad Pulok ◽

Alex van der Valk ◽

Olga Theou

Keyword(s):

Confidence Interval ◽

Odds Ratio ◽

Average Length ◽

Frailty Index ◽

Hazard Ratio ◽

Adverse Outcomes ◽

Care Plan ◽

Prognostic Information ◽

Clinical Frailty Scale ◽

Average Length Of Stay

Abstract Our aim was to use the Comprehensive Geriatric Assessment (CGA) database to investigate whether the Clinical Frailty Scale (CFS) measuring the baseline state, and a Frailty Index (FI) based on a CGA (current state, with acute illness) can predict adverse outcomes in acutely ill Emergency Department (ED) patients. It contains CFS and FI scores on 1028 ED patients referred to internal medicine at the Halifax Infirmary between 2009-2019 (Mage 80.69 ± SD 8.28, range 57-103; 54.9% female). The mean scores were 0.44±0.14 (FI) and 5.58±1.66 (CFS). Most patients (72%) arrived via ambulance. The average length of stay was 27.0±20.5 hours. Overall, 22% were discharged home, and 63.5% had died by December 2017 with a mean survival time of 1.98±2.01 years. Controlling for age, sex, and Canadian Triage Acuity Score, the odds ratio (95% Confidence Interval) of being discharged home and the hazard ratio (95% Confidence Interval) for mortality was 0.94 (0.92-0.95) and 1.02 (1.02-1.03), respectively per 0.01-point increase in FI. For the CFS, using score ≤4 as the reference, the odds ratio and the hazard ratio were 0.70 (0.42-1.16) and 2.02 (1.51-2.69), respectively for the CFS 5 group, 0.47 (0.27-0.81) and 2.72 (2.05-3.61), respectively for the CFS 6 group, and 0.38 (0.21-0.70) and 4.67 (3.51-6.20), respectively for the CFS 7-9 group. Even controlling for acuity, both the CFS and the FI independently predict adverse outcomes in ED patients. These add prognostic information to the routinely collected ED assessments, and establish targets for care plan based on recovery to baseline.

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Twenty-Four–Hour Ambulatory Blood Pressure versus Clinic Blood Pressure Measurements and Risk of Adverse Outcomes in Children with CKD

Clinical Journal of the American Society of Nephrology ◽

10.2215/cjn.09630917 ◽

2018 ◽

Vol 13 (3) ◽

pp. 422-428 ◽

Cited By ~ 6

Author(s):

Elaine Ku ◽

Charles E. McCulloch ◽

Bradley A. Warady ◽

Susan L. Furth ◽

Barbara A. Grimes ◽

...

Keyword(s):

Blood Pressure ◽

Left Ventricular Hypertrophy ◽

Confidence Interval ◽

Ventricular Hypertrophy ◽

Left Ventricular ◽

Hazard Ratio ◽

Adverse Outcomes ◽

Cross Sectional ◽

Single Visit ◽

Unadjusted Analysis

Backgroundand objectives Our objective was to determine whether clinic BPs (taken at either a single visit or two sequential visits) are inferior to ambulatory BPs in their ability to discriminate risk of adverse outcomes in children with CKD.Design, setting, participants, & measurementsWe included 513 participants of the CKD in Children Study who had clinic BPs and 24-hour ambulatory BP monitoring performed during similar timeframes. Predictors of interest were systolic BPs taken at a single visit or two repeated visits within a 1-year period compared with mean wake and sleep systolic ambulatory BPs. Outcomes were left ventricular hypertrophy and ESKD. We determined the ability for each BP parameter to provide risk discrimination using c statistics.ResultsDuring mean follow-up of 3.5 years, 123 participants developed ESKD. In cross-sectional unadjusted analysis, every 0.1 increase in systolic BP index was associated with a 2.0 times higher odds of left ventricular hypertrophy (95% confidence interval, 1.5 to 2.8) by clinic BPs versus 1.8 times higher odds (95% confidence interval, 1.3 to 2.4) by ambulatory wake BP. The c statistic was highest for clinic BP (c=0.65; 95% confidence interval, 0.58 to 0.73) but similar to ambulatory wake BP (c=0.64; 95% confidence interval, 0.57 to 0.71) for the discrimination of left ventricular hypertrophy. In longitudinal unadjusted analysis, every 0.1 increase in systolic BP index was associated with a higher risk of ESKD using repeated clinic (hazard ratio, 1.5; 95% confidence interval, 1.3 to 1.8) versus ambulatory wake BP (hazard ratio, 1.6; 95% confidence interval, 1.3 to 2.0). Unadjusted c statistics were the same for wake (c=0.61; 95% confidence interval, 0.56 to 0.67) and clinic systolic BPs (c=0.61; 95% confidence interval, 0.55 to 0.66) for discriminating risk of ESKD.ConclusionsClinic BPs taken in a protocol-driven setting are not consistently inferior to ambulatory BP in the discrimination of BP-related adverse outcomes in children with CKD.

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