Impact of Modality Choice on Rates of Hospitalization in Patients Eligible for Both Peritoneal Dialysis and Hemodialysis

BackgroundHospitalization rates are a relevant consideration when choosing or recommending a dialysis modality. Previous comparisons of peritoneal dialysis (PD) and hemodialysis (HD) have not been restricted to individuals who were eligible for both therapies.MethodsWe conducted a multicenter prospective cohort study of people 18 years of age and older who were eligible for both PD and HD, and who started outpatient dialysis between 2007 and 2010 in four Canadian dialysis programs. Zero-inflated negative binomial models, adjusted for baseline patient characteristics, were used to examine the association between modality choice and rates of hospitalization.ResultsThe study enrolled 314 patients. A trend in the HD group toward higher rates of hospitalization, observed in the primary analysis, became significant when modality was treated as a time-varying exposure or when the population was restricted to elective outpatient starts in patients with at least 4 months of pre-dialysis care. Cardiovascular disease, infectious complications, and elective surgery were the most common reasons for hospital admission; only 23% of hospital stays were directly related to complications of dialysis or kidney disease.ConclusionsEfforts to promote PD utilization are unlikely to result in increased rates of hospitalization, and efforts to reduce hospital admissions should focus on potentially avoidable causes of cardiovascular disease and infectious complications.

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Clinical characterization and prognostic implications of metabolic syndrome in patients undergoing peritoneal dialysis at a Chinese center

Journal of International Medical Research ◽

10.1177/0300060519875335 ◽

2019 ◽

Vol 47 (11) ◽

pp. 5573-5583

Author(s):

Rui-Ning Zhang ◽

Hui-Fang Hao ◽

Wei Zhang ◽

Qing Li ◽

Li-Jie Ren ◽

...

Keyword(s):

Cardiovascular Disease ◽

Metabolic Syndrome ◽

Peritoneal Dialysis ◽

Hospital Admissions ◽

Density Lipoprotein ◽

Serum Calcium Concentration ◽

Neutrophil Percentage ◽

Prognostic Implications ◽

Correlation Trend ◽

A Prospective Study

Objective Metabolic syndrome (MS) is a common clinical condition associated with cardiovascular disease in patients undergoing peritoneal dialysis (PD); however, its prognostic implication among patients receiving PD remains controversial. Methods In a prospective study from January 2013 and June 2016, we enrolled 190 patients undergoing PD and followed them for 46.4 ± 30.7 months. We assessed the associations of clinical characteristics and measurements with diabetes mellitus (DM) status, MS, and prognostic outcomes among the included patients. Results We found that DM was associated with shortened duration of dialysis and poor survival. The prevalence of MS was 58.9% among all patients. We found significant differences in age, body weight, body mass index, triglycerides, high-density lipoprotein cholesterol, fasting plasma glucose, leukocytes, platelets, neutrophil percentage, and pre-albumin between patients with and without MS. We found a negative correlation trend between serum intact parathyroid hormone and MS among our patients. The arteriosclerosis index was significantly elevated in the MS group compared with the non-MS group. Serum calcium concentration and frequency of hospital admissions were significantly associated with mortality and technique failure. Conclusions MS was positively associated with cardiovascular disease. DM, and hypocalcemia. Frequent hospital admissions can predict poor prognosis in patients undergoing PD.

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Dialysis adequacy and nutrition determine prognosis in continuous ambulatory peritoneal dialysis patients.

Journal of the American Society of Nephrology ◽

10.1681/asn.v75737 ◽

1996 ◽

Vol 7 (5) ◽

pp. 737-744

Author(s):

L Fung ◽

C A Pollock ◽

R J Caterson ◽

J F Mahony ◽

D A Waugh ◽

...

Keyword(s):

Peritoneal Dialysis ◽

Nutritional Status ◽

Serum Albumin ◽

Continuous Ambulatory Peritoneal Dialysis ◽

Kinetic Modeling ◽

Total Protein ◽

Hospital Admissions ◽

Infectious Complications ◽

Membrane Function ◽

Protein Levels

Peritoneal membrane function was assessed in patients undergoing continuous ambulatory peritoneal dialysis (CAPD) using parameters derived from urea kinetic modeling and the peritoneal equilibration test (PET). Their relationships with other nutritional markers and overall morbidity were determined. Data regarding the patients' nutritional status as determined by total body nitrogen (TBN) measurements, hospital admissions, and infectious complications within the last 12 months were reviewed. Total dialysate clearance (Kt/V) delivered was highly dependent on residual renal function (P < 0.0001). Kt/V derived from peritoneal clearance diminished with increasing age (P < 0.05). A higher delivered total Kt/V was associated with higher normalized protein catabolic rates (P < 0.002), which in turn were associated with improved TBN (P < 0.05). Hospital admissions decreased with improved normalized protein catabolic rates (P < 0.05), and higher serum albumin and total protein levels (P < 0.01 and P < 0.002, respectively). Infectious complications correlated positively with time on dialysis (P < 0.01), and correlated negatively with TBN measurements (P = 0.05). No correlations were found between infectious complications and serum albumin level or peritoneal protein loss. However, the total duration of hospitalization was shortened with higher serum albumin and total protein levels (P < 0.0001 and P < 0.002, respectively). Although Kt/V determinations did not correlate with clearances determined by the PET, the PET-determined creatinine transport rate correlated with TBN (P < 0.05) but not with infectious complications. In conclusion, nutritional parameters correlate with outcome on continuous ambulatory peritoneal dialysis. An integral relationship exists between nutritional status and dialysis delivery, which is best assessed by urea kinetic modeling.

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Circulating Stem/Progenitor Cells as Prognostic Biomarkers in Macro- and Microvascular Disease: A Narrative Review of Prospective Observational Studies

Current Medicinal Chemistry ◽

10.2174/0929867324666170920154020 ◽

2018 ◽

Vol 25 (35) ◽

pp. 4507-4517 ◽

Cited By ~ 6

Author(s):

Mauro Rigato ◽

Gian Paolo Fadini

Keyword(s):

Cardiovascular Disease ◽

Progenitor Cells ◽

Cardiovascular Events ◽

Observational Studies ◽

English Language ◽

Microvascular Disease ◽

Patient Characteristics ◽

Diabetic Patients ◽

Increased Risk ◽

Cell Phenotypes

Background: Circulating progenitor cells (CPCs) and endothelial progenitor cells (EPCs) are immature cells involved in vascular repair and related to many aspects of macro and microvascular disease. <p> Objective: We aimed to review studies reporting the prognostic role of CPCs/EPCs measurement on development of cardiovascular disease and microangiopathy. <p> Methods and Results: We reviewed the English language literature for prospective observational studies reporting the future development of cardiovascular disease or microangiopathy in patients having a baseline determination of CPCs/EPCs. We retrieved 34 studied reporting on cardiovascular outcomes and 2 studies reporting on microvascular outcomes. Overall, a reduced baseline level of CPCs/EPCs was associated with a significant increased risk of cardiovascular events, all-cause death, and onset/progression of microangiopathy. The most predictive phenotypes were CD34+ and CD34+CD133+. The main limitation was related to the high heterogeneity among studies in terms of patient characteristics and cell phenotypes. <p> Conclusion: The present review shows that a reduced level of circulating progenitor cells is a risk factor for the development of future cardiovascular events and death. In addition, low CPCs/EPCs levels predict the onset or worsening of microalbuminuria and retinopathy in diabetic patients.

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Functional Decline in Emergency Department Patients with Dyspnea; a Register-Based Cohort

International Journal for Quality in Health Care ◽

10.1093/intqhc/mzab047 ◽

2021 ◽

Author(s):

Karoline Stentoft Rybjerg Larsen ◽

Marianne Lisby ◽

Hans Kirkegaard ◽

Annemette Krintel Petersen

Keyword(s):

Emergency Department ◽

Electronic Patient Record ◽

Hospital Admissions ◽

Functional Decline ◽

Patient Characteristics ◽

Risk Of Death ◽

Record Data ◽

Emergency Department Patients ◽

One Year ◽

Historic Cohort

Abstract Background Functional decline is associated with frequent hospital admissions and elevated risk of death. Presumably patients acutely admitted to hospital with dyspnea have a high risk of functional decline. The aim of this study was to describe patient characteristics, hospital trajectory, and use of physiotherapy services of dyspneic patients in an emergency department. Furthermore, to compare readmission and death among patients with and without a functional decline, and to identify predictors of functional decline. Methods Historic cohort study of patients admitted to a Danish Emergency Department using prospectively collected electronic patient record data from a Business Intelligence Registry of the Central Denmark Region. The study included adult patients that due to dyspnea in 2015 were treated at the emergency department (ED). The main outcome measures were readmission, death, and functional decline. Results In total 2,048 dyspneic emergency treatments were registered. Within 30 days after discharge 20% was readmitted and 3.9% had died. Patients with functional decline had a higher rate of 30-day readmission (31.2% vs. 19.1%, p<0.001) and mortality (9.3% vs. 3.6%, p=0.009) as well as mortality within one year (36.1% vs. 13.4%, p<0.001). Predictors of functional decline were age ≥60 years and hospital stay ≥6 days. Conclusion Patients suffering from acute dyspnea are seen at the ED at all hours. In total one in five patients were readmitted and 3.9% died within 30 days. Patients with a functional decline at discharge seems to be particularly vulnerable.

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Advanced cardiometabolic & inflammatory markers for prediction of cardiovascular disease and cancer

European Heart Journal ◽

10.1093/ehjci/ehaa946.2921 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

D Radenkovic ◽

S.C Chawla ◽

G Botta ◽

A Boli ◽

M.B Banach ◽

...

Keyword(s):

Cardiovascular Disease ◽

Risk Score ◽

Cancer Incidence ◽

Risk Function ◽

Patient Characteristics ◽

Risk Scores ◽

Uk Biobank ◽

Training Set ◽

All Cause Mortality ◽

The Uk

Abstract The two leading causes of mortality worldwide are cardiovascular disease (CVD) and cancer. The annual total cost of CVD and cancer is an estimated $844.4 billion in the US and is projected to double by 2030. Thus, there has been an increased shift to preventive medicine to improve health outcomes and development of risk scores, which allow early identification of individuals at risk to target personalised interventions and prevent disease. Our aim was to define a Risk Score R(x) which, given the baseline characteristics of a given individual, outputs the relative risk for composite CVD, cancer incidence and all-cause mortality. A non-linear model was used to calculate risk scores based on the participants of the UK Biobank (= 502548). The model used parameters including patient characteristics (age, sex, ethnicity), baseline conditions, lifestyle factors of diet and physical activity, blood pressure, metabolic markers and advanced lipid variables, including ApoA and ApoB and lipoprotein(a), as input. The risk score was defined by normalising the risk function by a fixed value, the average risk of the training set. To fit the non-linear model >400,000 participants were used as training set and >45,000 participants were used as test set for validation. The exponent of risk function was represented as a multilayer neural network. This allowed capturing interdependent behaviour of covariates, training a single model for all outcomes, and preserving heterogeneity of the groups, which is in contrast to CoxPH models which are traditionally used in risk scores and require homogeneous groups. The model was trained over 60 epochs and predictive performance was determined by the C-index with standard errors and confidence intervals estimated with bootstrap sampling. By inputing the variables described, one can obtain personalised hazard ratios for 3 major outcomes of CVD, cancer and all-cause mortality. Therefore, an individual with a risk Score of e.g. 1.5, at any time he/she has 50% more chances than average of experiencing the corresponding event. The proposed model showed the following discrimination, for risk of CVD (C-index = 0.8006), cancer incidence (C-index = 0.6907), and all-cause mortality (C-index = 0.7770) on the validation set. The CVD model is particularly strong (C-index >0.8) and is an improvement on a previous CVD risk prediction model also based on classical risk factors with total cholesterol and HDL-c on the UK Biobank data (C-index = 0.7444) published last year (Welsh et al. 2019). Unlike classically-used CoxPH models, our model considers correlation of variables as shown by the table of the values of correlation in Figure 1. This is an accurate model that is based on the most comprehensive set of patient characteristics and biomarkers, allowing clinicians to identify multiple targets for improvement and practice active preventive cardiology in the era of precision medicine. Figure 1. Correlation of variables in the R(x) Funding Acknowledgement Type of funding source: None

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Spatio-temporal associations of air pollutant concentrations, GP respiratory consultations and respiratory inhaler prescriptions: a 5-year study of primary care in the borough of Lambeth, South London

Environmental Health ◽

10.1186/s12940-021-00730-1 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Mark Ashworth ◽

◽

Antonis Analitis ◽

David Whitney ◽

Evangelia Samoli ◽

...

Keyword(s):

Primary Care ◽

Negative Binomial ◽

Hospital Admissions ◽

Air Pollutant ◽

Respiratory Morbidity ◽

Short Term ◽

Short Term Exposure ◽

Short And Long Term ◽

Spatio Temporal

Abstract Background Although the associations of outdoor air pollution exposure with mortality and hospital admissions are well established, few previous studies have reported on primary care clinical and prescribing data. We assessed the associations of short and long-term pollutant exposures with General Practitioner respiratory consultations and inhaler prescriptions. Methods Daily primary care data, for 2009–2013, were obtained from Lambeth DataNet (LDN), an anonymised dataset containing coded data from all patients (1.2 million) registered at general practices in Lambeth, an inner-city south London borough. Counts of respiratory consultations and inhaler prescriptions by day and Lower Super Output Area (LSOA) of residence were constructed. We developed models for predicting daily PM2.5, PM10, NO2 and O3 per LSOA. We used spatio-temporal mixed effects zero inflated negative binomial models to investigate the simultaneous short- and long-term effects of exposure to pollutants on the number of events. Results The mean concentrations of NO2, PM10, PM2.5 and O3 over the study period were 50.7, 21.2, 15.6, and 49.9 μg/m3 respectively, with all pollutants except NO2 having much larger temporal rather than spatial variability. Following short-term exposure increases to PM10, NO2 and PM2.5 the number of consultations and inhaler prescriptions were found to increase, especially for PM10 exposure in children which was associated with increases in daily respiratory consultations of 3.4% and inhaler prescriptions of 0.8%, per PM10 interquartile range (IQR) increase. Associations further increased after adjustment for weekly average exposures, rising to 6.1 and 1.2%, respectively, for weekly average PM10 exposure. In contrast, a short-term increase in O3 exposure was associated with decreased number of respiratory consultations. No association was found between long-term exposures to PM10, PM2.5 and NO2 and number of respiratory consultations. Long-term exposure to NO2 was associated with an increase (8%) in preventer inhaler prescriptions only. Conclusions We found increases in the daily number of GP respiratory consultations and inhaler prescriptions following short-term increases in exposure to NO2, PM10 and PM2.5. These associations are more pronounced in children and persist for at least a week. The association with long term exposure to NO2 and preventer inhaler prescriptions indicates likely increased chronic respiratory morbidity.

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Total numbers and in-hospital mortality of patients with myocardial infarction in Germany during the FIFA soccer world cup 2014

Scientific Reports ◽

10.1038/s41598-021-90582-z ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Karsten Keller ◽

Lukas Hobohm ◽

Volker H. Schmitt ◽

Martin Engelhardt ◽

Philip Wenzel ◽

...

Keyword(s):

Myocardial Infarction ◽

Mortality Rate ◽

Hospital Mortality ◽

Environmental Stress ◽

Nationwide Inpatient Sample ◽

Hospital Admissions ◽

Patient Characteristics ◽

World Cup ◽

National Team ◽

Comparison Period

AbstractEnvironmental stress like important soccer events can induce excitation, stress and anger. We aimed to investigate (i) whether the FIFA soccer world cup (WC) 2014 and (ii) whether the soccer games of the German national team had an impact on total numbers and in-hospital mortality of patients with myocardial infarction (MI) in Germany. We analyzed data of MI inpatients of the German nationwide inpatient sample (2013–2015). Patients admitted due to MI during FIFA WC 2014 (12th June–13th July2014) were compared to those during the same period 2013 and 2015 (12th June–13th July). Total number of MI patients was higher during WC 2014 than in the comparison-period 2013 (18,479 vs.18,089, P < 0.001) and 2015 (18,479 vs.17,794, P < 0.001). WC was independently associated with higher MI numbers (2014 vs. 2013: OR 1.04 [95% CI 1.01–1.07]; 2014 vs. 2015: OR 1.07 [95% CI 1.04–1.10], P < 0.001). Patient characteristics and in-hospital mortality rate (8.3% vs. 8.3% vs. 8.4%) were similar during periods. In-hospital mortality rate was not affected by games of the German national team (8.9% vs. 8.1%, P = 0.110). However, we observed an increase regarding in-hospital mortality from 7.9 to 9.3% before to 12.0% at final-match-day. Number of hospital admissions due to MI in Germany was 3.7% higher during WC 2014 than during the same 31-day period 2015. While in-hospital mortality was not affected by the WC, the in-hospital mortality was highest at WC final.

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