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1.
Appl Clin Inform ; 14(2): 326-336, 2023 03.
Article in English | MEDLINE | ID: mdl-37137338

ABSTRACT

BACKGROUND: Reuse of health care data for various purposes, such as the care process, for quality measurement, research, and finance, will become increasingly important in the future; therefore, "Collect Once Use Many Times" (COUMT). Clinical information models (CIMs) can be used for content standardization. Data collection for national quality registries (NQRs) often requires manual data entry or batch processing. Preferably, NQRs collect required data by extracting data recorded during the health care process and stored in the electronic health record. OBJECTIVES: The first objective of this study was to analyze the level of coverage of data elements in NQRs with developed Dutch CIMs (DCIMs). The second objective was to analyze the most predominant DCIMs, both in terms of the coverage of data elements as well as in their prevalence across existing NQRs. METHODS: For the first objective, a mapping method was used which consisted of six steps, ranging from a description of the clinical pathway to a detailed mapping of data elements. For the second objective, the total number of data elements that matched with a specific DCIM was counted and divided by the total number of evaluated data elements. RESULTS: An average of 83.0% (standard deviation: 11.8%) of data elements in studied NQRs could be mapped to existing DCIMs . In total, 5 out of 100 DCIMs were needed to map 48.6% of the data elements. CONCLUSION: This study substantiates the potential of using existing DCIMs for data collection in Dutch NQRs and gives direction to further implementation of DCIMs. The developed method is applicable to other domains. For NQRs, implementation should start with the five DCIMs that are most prevalently used in the NQRs. Furthermore, a national agreement on the leading principle of COUMT for the use and implementation for DCIMs and (inter)national code lists is needed.


Subject(s)
Delivery of Health Care , Electronic Health Records , Registries
2.
JAMA Intern Med ; 180(4): 533-541, 2020 04 01.
Article in English | MEDLINE | ID: mdl-32065601

ABSTRACT

Importance: Prevention of postcontrast acute kidney injury in patients with stage 3 chronic kidney disease (CKD) by means of prehydration has been standard care for years. However, evidence for the need for prehydration in this group is limited. Objective: To assess the renal safety of omitting prophylactic prehydration prior to iodine-based contrast media administration in patients with stage 3 CKD. Design, Setting, and Participants: The Kompas trial was a multicenter, noninferiority, randomized clinical trial conducted at 6 hospitals in the Netherlands in which 523 patients with stage 3 CKD were randomized in a 1:1 ratio to receive no prehydration or prehydration with 250 mL of 1.4% sodium bicarbonate administered in a 1-hour infusion before undergoing elective contrast-enhanced computed tomography from April 2013 through September 2016. Final follow-up was completed in September 2017. Data were analyzed from January 2018 to June 2019. Interventions: In total, 262 patients were allocated to the no prehydration group and 261 were allocated to receive prehydration. Analysis on the primary end point was available in 505 patients (96.6%). Main Outcomes and Measures: The primary end point was the mean relative increase in serum creatinine level 2 to 5 days after contrast administration compared with baseline (noninferiority margin of less than 10% increase in serum creatinine level). Secondary outcomes included the incidence of postcontrast acute kidney injury 2 to 5 days after contrast administration, mean relative increase in creatinine level 7 to 14 days after contrast administration, incidences of acute heart failure and renal failure requiring dialysis, and health care costs. Results: Of 554 patients randomized, 523 were included in the intention-to-treat analysis. The median (interquartile range) age was 74 (67-79) years; 336 (64.2%) were men and 187 (35.8%) were women. The mean (SD) relative increase in creatinine level 2 to 5 days after contrast administration compared with baseline was 3.0% (10.5) in the no prehydration group vs 3.5% (10.3) in the prehydration group (mean difference, 0.5; 95% CI, -1.3 to 2.3; P < .001 for noninferiority). Postcontrast acute kidney injury occurred in 11 patients (2.1%), including 7 of 262 (2.7%) in the no prehydration group and 4 of 261 (1.5%) in the prehydration group, which resulted in a relative risk of 1.7 (95% CI, 0.5-5.9; P = .36). None of the patients required dialysis or developed acute heart failure. Subgroup analyses showed no evidence of statistical interactions between treatment arms and predefined subgroups. Mean hydration costs were €119 (US $143.94) per patient in the prehydration group compared with €0 (US $0) in the no prehydration group (P < .001). Other health care costs were similar. Conclusions and Relevance: Among patients with stage 3 CKD undergoing contrast-enhanced computed tomography, withholding prehydration did not compromise patient safety. The findings of this study support the option of not giving prehydration as a safe and cost-efficient measure. Trial Registration: Netherlands Trial Register Identifier: NTR3764.


Subject(s)
Acute Kidney Injury/prevention & control , Contrast Media/adverse effects , Rehydration Solutions/therapeutic use , Renal Insufficiency, Chronic/complications , Sodium Bicarbonate/administration & dosage , Tomography, X-Ray Computed , Acute Kidney Injury/chemically induced , Aged , Creatinine/blood , Female , Humans , Male , Netherlands
3.
PLoS One ; 13(2): e0189372, 2018.
Article in English | MEDLINE | ID: mdl-29420536

ABSTRACT

BACKGROUND: Guidelines advise periprocedural saline hydration for prevention of contrast induced-acute kidney injury (CI-AKI). We analysed whether 1-hour sodium bicarbonate hydration administered solely prior to intra-arterial contrast exposure is non-inferior to standard periprocedural saline hydration in chronic kidney disease (CKD) patients undergoing elective cardiovascular diagnostic or interventional contrast procedures. METHODS: We performed an open-label multicentre non-inferiority trial between 2011-2014. Patients were randomized to 1 hour pre-procedure sodium bicarbonate hydration (250 ml 1.4%, N = 168) or 4-12 hours saline hydration (1000 ml 0.9%, N = 165) prior to and following contrast administration (2000 ml of saline total). Primary outcome was the relative serum creatinine increase (%) 48-96 hours post contrast exposure. Secondary outcomes were: incidence of CI-AKI (serum creatinine increase>25% or >44µmol/L), recovery of renal function, the need for dialysis, and hospital costs within two months follow-up. RESULTS: Mean relative creatinine increase was 3.1% (95%CI 0.9 to 5.2%) in the bicarbonate and 1.1% (95%CI -1.2 to 3.5%) in the saline arm, mean difference 1.9% (95%CI -1.2 to 5.1%, p-non-inferiority <0.001). CI-AKI occurred in 11 (6.7%) patients randomized to sodium bicarbonate and 12 (7.5%) to saline (p = 0.79). Renal function did not fully recover in 40.0% and 44.4% of CI-AKI patients, respectively (p = 0.84). No patient required dialysis. Mean costs for preventive hydration and clinical preparation for the contrast procedure were $1158 for sodium bicarbonate vs. $1561 for saline (p < 0.001). CONCLUSION: Short hydration with sodium bicarbonate prior to elective cardiovascular diagnostic or therapeutic contrast procedures is non-inferior to standard periprocedural saline hydration in CKD patients with respect to renal safety and results in considerable healthcare savings. TRIAL REGISTRATION: Netherlands Trial Register (http://www.trialregister.nl/trialreg/index.asp), Nr NTR2699.


Subject(s)
Acute Kidney Injury/prevention & control , Cardiovascular System/diagnostic imaging , Contrast Media/adverse effects , Kidney Failure, Chronic/therapy , Sodium Bicarbonate/administration & dosage , Sodium Chloride/administration & dosage , Acute Kidney Injury/chemically induced , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged
4.
Ned Tijdschr Geneeskd ; 159: A8501, 2015.
Article in Dutch | MEDLINE | ID: mdl-26083840

ABSTRACT

OBJECTIVE: To evaluate the Dutch CBO guideline 'Preventive measures for iodine-based contrast investigations' in daily practice, and to assess one-year mortality post contrast exposure in patients at high risk of contrast-induced nephropathy (CIN). DESIGN: Prospective cohort study. METHOD: Between July 2011 and May 2013, 497 patients at high risk of CIN were prepared for elective iodine-based contrast investigations according to the Dutch CBO guideline. This group was followed up until May 2014 or, if applicable, until death. CIN incidence and reversibility, and mortality, were assessed. RESULTS: CIN occurred in 20 patients (4%). The incidence was highest in the group of patients with an estimated glomerular filtration rate (eGFR) < 30 ml/min per 1.73 m2 (9/84 patients). CIN was reversible within two months in 19 patients. None of the patients with CIN died during that period. One-year mortality post contrast exposure was 22.5% (median survival: 203 days). CONCLUSION: This cohort study shows a low incidence of CIN, which is largely reversible. Almost a quarter of the cohort died within a year post contrast exposure, not as the result of CIN but probably due to comorbidities. Adherence to the current CBO guideline exposes patients with a reduced life expectancy to excessive preventive measures, while the occurrence of CIN is rare. These data warrant reconsideration of the current CBO guideline.


Subject(s)
Contrast Media/adverse effects , Glomerular Filtration Rate/physiology , Kidney Diseases/chemically induced , Aged , Cohort Studies , Comorbidity , Contrast Media/metabolism , Female , Humans , Incidence , Iodine/adverse effects , Iodine/metabolism , Kidney Diseases/epidemiology , Kidney Diseases/mortality , Male , Prospective Studies
5.
Clin Exp Nephrol ; 13(4): 397-401, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19381758

ABSTRACT

A 51-year-old man with immunoglobulin A (IgA) nephropathy developed metastatic renal-cell carcinoma of his native right kidney, 3.5 years post kidney transplant. At that time renal function was stable with the presence of only mild proteinuria. Shortly after chemotherapy with sorafenib [anti-vascular endothelial growth factor (VEGF)] was initiated, progressive renal impairment, hypertension, and nephrotic-range proteinuria developed. Allograft biopsy showed extensive IgA nephropathy. After withdrawal of the anti-VEGF therapy, however, renal function and blood pressure improved, and proteinuria diminished. Based on the clinical course and histopathological findings we hypothesize that sorafenib may induce nephrotic-range proteinuria and renal impairment, possibly through anti-VEGF-mediated effects on the progression of IgA nephropathy.


Subject(s)
Angiogenesis Inhibitors/adverse effects , Benzenesulfonates/adverse effects , Carcinoma, Renal Cell/drug therapy , Glomerulonephritis, IGA/complications , Kidney Neoplasms/drug therapy , Kidney Transplantation , Nephrotic Syndrome/chemically induced , Proteinuria/chemically induced , Pyridines/adverse effects , Antihypertensive Agents/therapeutic use , Biopsy , Carcinoma, Renal Cell/secondary , Disease Progression , Glomerulonephritis, IGA/chemically induced , Glomerulonephritis, IGA/pathology , Humans , Hypertension/chemically induced , Hypertension/drug therapy , Kidney Neoplasms/secondary , Male , Middle Aged , Nephrotic Syndrome/pathology , Niacinamide/analogs & derivatives , Phenylurea Compounds , Proteinuria/pathology , Sorafenib , Transplantation, Homologous
6.
J Infect ; 57(6): 485-8, 2008 Dec.
Article in English | MEDLINE | ID: mdl-18775568

ABSTRACT

Haemophilus influenzae is a rare causative organism of vertebral osteomyelitis in an adult. Cases reported in the literature were mainly caused by ampicillin-susceptible type b strains. Here we describe the first case of vertebral osteomyelitis due to a non-typeable, beta-lactamase low-level ampicillin-resistant H. influenzae strain with failure of prolonged intravenous amoxicillin treatment.


Subject(s)
Amoxicillin/therapeutic use , Ampicillin Resistance , Anti-Bacterial Agents/therapeutic use , Haemophilus Infections/drug therapy , Haemophilus influenzae/drug effects , Osteomyelitis/drug therapy , beta-Lactamases/biosynthesis , Aged , Haemophilus Infections/microbiology , Haemophilus influenzae/enzymology , Haemophilus influenzae/isolation & purification , Humans , Male , Osteomyelitis/microbiology , Treatment Failure
7.
J Nutr ; 136(4): 987-91, 2006 Apr.
Article in English | MEDLINE | ID: mdl-16549462

ABSTRACT

Fibrates are drugs of choice in patients with hypertriglyceridemia (HTG), but may increase the risk for gallstones by decreasing bile acid synthesis. Fish oil might be a therapeutic alternative, but its effect on bile acid metabolism in humans is unknown. We compared the effects of triglyceride-lowering therapy by fish oil or bezafibrate on cholesterol synthesis and bile acid metabolism in HTG. Cholesterol synthesis, bile acid pool sizes, and synthesis rates were compared between 9 male HTG patients and 10 normolipidemic controls matched for age, sex, and BMI. Effects of bezafibrate or fish oil were studied only in HTG patients in a randomized crossover trial. Patients had 14-fold higher serum triglyceride concentrations and greater cholesterol synthesis, as indicated by a 107% higher ratio of serum lathosterol to cholesterol (P < 0.01) than controls. The groups did not differ in bile acid metabolism. Both bezafibrate and fish oil reduced serum TG concentration (-68 and -51% vs. baseline, respectively). Compared with baseline, bezafibrate therapy was associated with reduced cholesterol synthesis (-25%, P = 0.009) without changes in bile acid synthesis rate and pool size. In contrast, fish oil increased bile acid synthesis (+31% vs. baseline, P = 0.07 and +53% vs. bezafibrate, P = 0.02) and altered bile acid distribution, as reflected by an increased ratio of the cholic acid (CA) synthesis rate to the chenodeoxycholic acid (CDCA) synthesis rate (+35% vs baseline, P = 0.05 and + 32% vs bezafibrate, P = 0.07) without effects on bile acid pool size or cholesterol synthesis. In conclusion, cholesterol synthesis is greater in HTG patients than in controls, whereas bile acid synthesis does not differ. Bezafibrate and fish oil have similar triglyceride-lowering capacities, but distinct effects on cholesterol synthesis. Bile acid synthesis is increased by fish oil, but not by bezafibrate therapy.


Subject(s)
Bile Acids and Salts/biosynthesis , Fish Oils/administration & dosage , Hypertriglyceridemia/drug therapy , Bezafibrate/adverse effects , Bezafibrate/therapeutic use , Blood Glucose/analysis , Body Mass Index , Chenodeoxycholic Acid/biosynthesis , Cholesterol/biosynthesis , Cholic Acid/biosynthesis , Clofibric Acid/adverse effects , Cross-Over Studies , Fasting , Gallstones/chemically induced , Humans , Hypertriglyceridemia/metabolism , Insulin/blood , Insulin Resistance , Lipids/blood , Male , Middle Aged , Triglycerides/blood
8.
Arch Intern Med ; 163(13): 1549-54, 2003 Jul 14.
Article in English | MEDLINE | ID: mdl-12860577

ABSTRACT

BACKGROUND: A high total serum cholesterol level does not carry a risk of cardiovascular mortality among people 85 years and older and is related to decreased all-cause mortality. At this old age, there are few data on fractionated lipoprotein levels in the determination of cardiovascular disease risk. The aim of this study was to evaluate the relationships between low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol levels and mortality from specific causes among people in the oldest age categories. METHODS: Between September 1, 1997, and September 1, 1999, a total of 705 inhabitants in the community of Leiden, the Netherlands, reached the age of 85 years. Among these old people, we initiated a prospective follow-up study to investigate determinants of successful aging. A total of 599 subjects participated (response rate, 87%) and all were followed up to September 2001. Serum levels of total, LDL, and HDL cholesterol were assessed at baseline along with detailed information on comorbid conditions. The main outcome measure was all-cause and specific mortality risk. RESULTS: During 4 years of follow-up, 152 subjects died. The leading cause of death was cardiovascular disease, with similar mortality risks in all tertiles of LDL cholesterol level. In contrast, low HDL cholesterol level was associated with a 2.0-fold higher risk of fatal cardiovascular disease (95% confidence interval [CI], 1.2-3.2). The mortality risk of coronary artery disease was 2.0 (95% CI, 1.0-3.9) and for stroke it was 2.6 (95% CI, 1.0-6.6). Both low LDL cholesterol and low HDL cholesterol concentrations were associated with an increased mortality risk of infection: 2.7 (95% CI, 1.2-6.2) and 2.4 (95% CI, 1.1-5.6), respectively. The risks were unaffected by comorbidity. CONCLUSION: In contrast to high LDL cholesterol level, low HDL cholesterol level is a risk factor for mortality from coronary artery disease and stroke in old age.


Subject(s)
Cholesterol, HDL/blood , Cholesterol, LDL/blood , Coronary Disease/blood , Stroke/blood , Aged , Aged, 80 and over , Cause of Death , Coronary Disease/mortality , Female , Follow-Up Studies , Humans , Male , Netherlands/epidemiology , Proportional Hazards Models , Prospective Studies , Risk Factors , Stroke/mortality
9.
J Lipid Res ; 44(8): 1462-9, 2003 Aug.
Article in English | MEDLINE | ID: mdl-12754275

ABSTRACT

Hypertriglyceridemia (HTG) is associated with insulin resistance, increased cholesteryl ester transfer (CET), and low HDL cholesterol. Phospholipid transfer protein (PLTP) may be involved in these relationships. Associations between CET, lipids, insulin resistance, CETP and PLTP activities, and PLTP mass were investigated in 18 HTG patients and 20 controls. Effects of 6 weeks of bezafibrate treatment were studied in HTG patients. HTG patients had higher serum triglycerides, insulin resistance, free fatty acid (FFA), and CET, lower levels of HDL cholesterol (-44%) and PLTP mass (-54%), and higher CETP (+20%) and PLTP activity (+48%) than controls. Bezafibrate reduced triglycerides, CET (-37%), insulin resistance (-53%), FFA (-48%), CETP activity (-12%), PLTP activity (-8%), and increased HDL cholesterol (+27%), whereas PLTP mass remained unchanged. Regression analysis showed a positive contribution of PLTP mass (P = 0.001) but not of PLTP activity to HDL cholesterol, whereas insulin resistance positively contributed to PLTP activity (P < 0.01). Bezafibrate-induced change in CET and HDL cholesterol correlated with changes in CETP activity and FFAs, but not with change in PLTP activity. Bezafibrate-induced change in PLTP activity correlated with change in FFAs (r = 0.455, P = 0.058). We propose that elevated PLTP activity in HTG is related to insulin resistance and not to increased PLTP mass. Bezafibrate-induced diminished insulin resistance is associated with a reduction of CET and PLTP activity.


Subject(s)
Bezafibrate/pharmacology , Bezafibrate/therapeutic use , Carrier Proteins/chemistry , Carrier Proteins/metabolism , Hypertriglyceridemia/drug therapy , Hypertriglyceridemia/metabolism , Insulin Resistance/physiology , Membrane Proteins/chemistry , Membrane Proteins/metabolism , Phospholipid Transfer Proteins , Adrenergic beta-Antagonists/pharmacology , Adrenergic beta-Antagonists/therapeutic use , Adult , Blood Glucose/analysis , Cholesterol Esters/metabolism , Cholesterol, HDL/metabolism , Cross-Over Studies , Data Interpretation, Statistical , Double-Blind Method , Female , Humans , Insulin/blood , Linear Models , Male , Middle Aged , Molecular Weight
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