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Biomedical subjects

M Varroud-Vial

Publications and source records attributed to M Varroud-Vial.

13 recordsLinked to original sources

Improving glycaemic control of patients with Type 2 diabetes in a primary care setting: a French application of the Staged Diabetes Management programme.

AIMS: To assess the impact of a French adaptation of the Staged Diabetes Management (SDM) programme on glycaemic control of people with Type 2 diabetes in primary care. Secondary endpoints were blood pressure, blood lipids, healthcare costs and quality of life. METHODS: Prospective, randomized controlled study, of 1 years' duration. General practitioners (GPs) were recruited in four separate districts of a French region. They enrolled consecutive patients with Type 2 diabetes. GPs in the intervention group were educated in the SDM programme. GPs in the control group were asked to provide usual care. Healthcare costs were collected by medical departments of the Health Insurance systems. Quality of life was assessed with the Duke Health Profile. RESULTS: Three hundred and forty patients enrolled by 57 GPs completed the study, 192 in the intervention group and 148 in the control group. Patients in the intervention group were managed more adequately in accordance with the guidelines (P < 0.05 for nine out of 10 items). HbA(1c) decreased by 0.31% in the intervention group and increased by 0.56% in the control group, resulting in a difference of 0.87% by the end of the study (P = 0.001). Blood pressure and blood lipids did not differ between groups. Occurrence of major complications was low and identical in both groups. Incremental costs during the study in the intervention group were 35 euros per patient per month, and this was not significantly different in comparison with the control group. Quality of life was not affected by the intervention. CONCLUSIONS: Educating GPs in the French adaptation of the SDM programme improves glycaemic control in a primary care setting, without significantly increasing healthcare costs.

Blood Glucose↗

Sulfonylureas and cardiovascular effects: from experimental data to clinical use. Available data in humans and clinical applications.

OBJECTIVES: 33 years after the UGDP study, the question of deleterious effects of the sulfoylurea (SU) is still raised. We have made a systematic review of the literature from experimental studies to clinical and epidemiological studies. RESULTS: The main molecule studied is glibenclamide (GB). In vitro and in animal studies, GB is both deleterious for ischemic preconditionning (IPC) and protective for arrhythmia during acute ischemia. Glimepiride (GM) and gliclazide (GCZ) do not seem to have effect on IPC. These effects have been few studied in diabetic animals. In human, according to the investigations used, the GB seems nil or suppressing for IPC, it seems elsewhere decreases ventricular arrhythmias during periods of acute ischemia. It is possible that these two actions account for the non-appearance of concordant deleterious effects between short and long-term studies. With regards to other drugs, only the GM has been specifically studied in human and appears to be nil on IPC. The only prospective clinical study available, although not having for objective to answer to this question, is the UKPDS study. This trial demonstrates the absence of deleterious cardiac effects of GB compared to chlorpropamide and particularly compared to insulin. CONCLUSION: In conclusion, in experimental studies the cardiac effects of SU differ: both deleterious and protective for GB, nil for GM and GCZ on IPC. In all cases the clinical consequences seems to be nil.

Animals↗

Effects of clinical audit on the quality of care in patients with type 2 diabetes: results of the DIABEST pilot study.

OBJECTIVE: To improve the quality of diabetes care in general practice by the use of audit. MATERIAL AND METHODS: A prospective multicenter pilot study. Thirty-five groups of ten general practitioners (GPs) have been set up throughout France on a voluntary basis. These groups were led by a steering committee that includes a diabetologist and a GP. Each group established a consensus on healthcare standards and carried out 2 data collections over a 12-month period, with adoption of corrective measures between these 2 collections. RESULTS: 309 (90.4%) of the 342 practitioners completed the first data collection, assessing the management of 3,125 patients over a year. Less than half the groups have reached the 80% reference threshold for quality of care with regard to foot examination, microalbuminuria, ECG, fundoscopy and assessment of diet. The audit also found no intervention within one year in case of poor glucose control for 47% of patients, unsatisfactory quality of HbA(1c) measurement and insufficient resources for diet and education. 226 (66.1%) practitioners completed the second data collection assessing the management of 2,248 patients. Comparison between the two phases of the audit showed significant improvements for all the indicators of the process of care (p<0.001). Quality of HbA(1c) measurement and diet assessment by GPs progressed (p<0.01). Outcomes of care also improved with respect to the proportion of patients with HbA(1c)<=8% (p=0.007), fasting glycaemia<1.40 g/l (p=0.05) and SBP<140 mmHg (p=0.02). CONCLUSIONS: This pilot study confirms the feasibility of using clinical audit at the national level. It seems to be an effective measure to improve the management of patients with type 2 diabetes in primary care. It is intended that the large-scale DIABEST study will address this issue.

Albuminuria↗

The Pro115Gln and Pro12Ala PPAR gamma gene mutations in obesity and type 2 diabetes.

OBJECTIVE: Peroxisome-proliferator-activated receptors gamma (PPAR gamma), is a key regulator of adipocyte differentiation and energy balance. Two naturally occurring mutations in the PPAR gamma gene, Pro115Gln and Pro12Ala, have recently been shown to impair the function of the PPAR gamma2 isoform of the receptor and to be associated with obesity or diabetes-related phenotypes in different populations. SUBJECTS: We studied the occurrence and possible associations of the Pro115Gln and Pro12Ala in the PPAR gamma2 gene with several clinical and metabolic phenotypes in three independent large populations of non-obese non-diabetic, type 2 diabetic, and morbidly obese French Caucasians. RESULTS: The Pro115Gln mutation was not found in any of the 1069 subjects screened including 626 obese patients. The frequency of the Pro12Ala mutation was similar in all groups (0.08, 0.11, 0.09) and was not associated with BMI or any of the clinical parameters tested. CONCLUSIONS: We conclude that the Pro115Gln mutation is not a frequent cause of morbid obesity in Caucasians and that the Pro12Ala mutation is not associated with clinically significant changes in these populations.

Adult↗

Management of drugs affecting blood glucose in diabetic patients with renal failure.

Prevention of the onset or worsening of microalbuminuria by good blood glucose control has been confirmed in Type 2 diabetes, though not at the stage of chronic renal failure (CRF). Thus, it would seem desirable to maintain strict blood glucose control whenever circumstances allow. If prescribed sulphonylureas (SU) are effective, they can be continued at adjusted doses until an advanced stage of CRF, subject to strict monitoring. SU are eliminated by the liver, but their metabolites (often active) are eliminated to varying degrees by the kidney. Non-SU insulin secretagogues and thiazolidinediones metabolised by the liver might also be used. The fate of their metabolites (some active) remains to be defined in CRF, and further clinical trials are required. Acarbose and its metabolites, as well as miglitol, very probably accumulate in CRF, causing ill-defined (but especially hepatic) iatrogenic risks. Although the danger of metformin in diabetic patients with renal failure is currently uncertain, CRF remains a regulatory contraindication. Insulin, which is necessary in most Type 2 diabetic patients with CRF, decreases as CRF progresses and when dialysis is started. The kinetics of insulin analogs are modified in CRF. Regardless of the choice of treatment, specialist and regular monitoring is required.

Albuminuria↗

[Silent ischemic cardiopathy: which diabetics to examine?].

Non-Invasive coronary investigations are positive in 12 to 52% (average 22%) of type II diabetics, and 11 to 30% (average 17%) of type i diabetics. These statistics vary according to bias of recruitment. Haemodynamic lesions are found at coronary angiography in 35 to 80% of patients who have at least one positive non-invasive investigation. Nine to 12% of diabetics have silent myocardial ischaemia (SMI) confirmed by coronary angiography, compared with 1.3 to 5.3% of non-diabetic controls paired for age and sex. The higher frequency of SMI in diabetics seems to be mostly due to the increased frequency of ischaemic heart disease in diabetics. The importance of cardiac autonomic neuropathy (CAN) in SMI is controversial. The risk factors associated with SMI are those usually associated with coronary artery disease: age, masculine gender, hypercholesterolaemia, hypertriglyceridaemia, hypertension, smoking, a family history of cardiovascular disease, insulin therapy (for type II diabetes), proteinuria, retinopathy, peripheral occlusive arterial disease.... The French recommendations for investigating SMI seem to be contradictory. A single risk score in a given patient could help codify the investigation of SMI in diabetics, but this type of score has not yet been validated.

Adult↗

Cooperation between general practitioners and diabetologists and clinical audit improve the management of type 2 diabetic patients.

A programme was set up in the Essonne (France) between 1994 and 1998 to improve the quality of care for Type 2 diabetic patients. A consensus panel of general practitioners and diabetes specialists established guidelines based on the French St. Vincent recommendations. An audit involving 73 volunteer general practitioners (out of 965 in the Essonne) then evaluated compliance with these guidelines. Care and outcome were assessed in 505 (1995) and 604 (1996) Type 2 diabetic patients. The first audit cycle showed that defined standards were not met for several criteria and also revealed a lack of standardisation of HbA1c measurements and delayed intervention when blood glucose control was inadequate. Corrective measures were adopted: cooperative protocols for foot care, prevention of nephropathy and retinopathy, standardisation of HbA1c, and an educational programme at the primary health care level. The second audit cycle showed improvement in foot care (+33.6%), quality (+39.9%), prescription of HbA1c (+11.9%), and control of blood pressure (+11.9%) and blood lipids (+12.8%). The proportion of early interventions in case of inadequate glucose control increased significantly (+10.5%). However, some gaps persisted, mainly regarding screening for complications, diet counselling and patient education. This study shows that cooperation between general practitioners and diabetes specialists is feasible and effective in the context of a district-wide approach, and that it facilitates the adoption of international guidelines by local physicians. A project has been developed to provide structured diabetes care in general practice and better access to specialist services in order to improve the outcome of Type 2 diabetic patients.

Blood Glucose↗

[Role of beta blockers as the only therapy for preparing the hyperthyroid patient for surgery].

Indications and contraindications of the beta blocking drugs are reviewed as a method of preparation to sub total thyroidectomy in thyrotoxicosis. They allow a shorter preparation's time: a few days, until one or two weeks maximum. Major risks are cardiac failure, and altered response to stress. This technic is contraindicated in thyrocardiac disease, severe thyrotoxicosis and for patients over fifty years of age. The best beta blocking's criterion is exercise-induced tachycardia's reduction. The safety of this method allows its utilisation when social, medical or psychological environment requires a quick thyrotoxicosis' recovery.

Adrenergic beta-Antagonists↗

[Interest and limits of beta blocking drugs for preparing Grave's disease to sub-total thyroidectomy (author's transl)].

The use of beta blocking drugs as a preparation to the sub-total thyroidectomy in Graves's disease allows to shorten the pre-operation time. However, besides the observance of classical contraindications, it requires that patient who remain hyperthyroid are closely looked after. Within these limits, it seems to be quite useful for patients who need to quickly come back to euthyroid status.

Adrenergic beta-Antagonists↗