C Mounier-Vehier

Centre Hospitalier Régional Universitaire de Lille, Lille, Nord-Pas-de-Calais, France

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Publications (47)48.18 Total impact

  • Article: [In Process Citation].
    Journal des Maladies Vasculaires 03/2013; 38(2):131. · 0.54 Impact Factor
  • Article: [In Process Citation].
    T Caudrelier, P Delsart, G Claisse, C Mounier-Vehier
    Journal des Maladies Vasculaires 03/2013; 38(2):140. · 0.54 Impact Factor
  • Article: [Contribution of angioplasty of a fibromuscular angiodysplasic renal artery during early-onset gestational hypertension].
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    ABSTRACT: This clinical case illustrates the management difficulties encountered during gestational hypertension and its impact on maternal and foetal outcome. Typically, preeclampsia occurs at the end of the second trimester. If blood pressure remains high early during pregnancy, a secondary cause of hypertension such as renal artery fibromuscular dysplasia should be explored. A renal vascular etiology can be safely ruled out with a duplex ultrasound. In this particular case of renal vascular hypertension in a patient with a single kidney, angioplasty appeared to be the sole solution and was efficient.
    Journal des Maladies Vasculaires 02/2012; 37(1):26-9. · 0.54 Impact Factor
  • Article: [Ankle brachial index measurement at the first visit for hypertension: a safe and very useful tool for aortic coarctation screening. A case report].
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    ABSTRACT: A 24-year-old African who had been living in France for few years first consulted at our institution for severe systemic hypertension. He had no prior medical or surgical history. The patient was strictly asymptomatic. Except for systemic hypertension at both arms, the basic physical examination was normal with no cardiac murmur and no pulse deficit. A 24-hour ambulatory blood pressure monitoring performed before the consultation confirmed the presence of systemic hypertension with a mean blood pressure at 155/90mmHg during the day and also during the night under anti-hypertensive treatment. Ankle-brachial index measurement was low at 0.8 at both legs. Subsequently, a trans-thoracic echocardiography (TTE) and an aortic CT-scanner were performed. The TTE did not find any abnormalities including no aortic dilatation or no ventricular hypertrophy. The CT-scanner revealed a partial aortic coarctation. The patient underwent aortic surgery and recovered in few days with quite normal blood pressure under medical treatment. In conclusion, systematic ankle-brachial index is useful and recommended in every patient at first visit for systemic hypertension. Its safety and simplicity make it an essential tool in the management of systemic hypertension especially in populations with no systematic screening of aortic coarctation in childhood. It was in the present case very useful for the final diagnosis and treatment. In addition, it is an efficient tool to screen patients with asymptomatic peripheral artery disease and it can help for stratification of cardiovascular risk.
    Journal des Maladies Vasculaires 06/2010; 35(3):175-8. · 0.54 Impact Factor
  • Article: [Benefits of a healthcare network in the management of cardiovascular disease: HTA Vasc, an innovation in the Nord Pas de Calais region].
    C Mounier-Vehier, P Bocquet, P Marboeuf, G Rosey, A Noël, L-M Gorre
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    ABSTRACT: Created in 2004, the HTA vasc healthcare network intensified detection, multi-disciplinary management and follow up of atheromatous cardiovascular disease and complicated hypertension in the Nord Pas de Calais region. The participating doctors gave their patients a Patient Dossier, as a function of predefined inclusion criteria (patients at elevated cardiovascular risk, as defined by the Haute Autorité de Santé (Higher Authority of Health) stratification. The dossier was presented in the form of a file containing all the information needed to optimise multi-disciplinary management, while at the same time reinforcing therapeutic compliance by patients. Therapeutic education workshops were organised, in order to complement the existing service. In parallel, HTA vasc set up a pilot medical education programme for vascular rehabilitation in six hospitals in the region. HTA vasc also established partnerships with other healthcare networks in the region. A patients' association 'Notre Coeur, Nos Artères', (Our Hearts, Our Arteries) was created in September 2006. About 250 healthcare professionals had joined the network by the end of January 2006, an increase of almost 40% over the year. More than two thirds were independent doctors, and they included cardiologists, neurologists, nephrologists, diabetologists, general practitioners, radiologists, cardiovascular surgeons, rehabilitation doctors, paramedics and pharmacists. More than 260 patients received a follow up dossier. The results of a survey carried out in May 2006 showed a high level of satisfaction: 82% of patients considered the Patient Dossier to be useful and appropriate; 78% of the healthcare professionals stated that the network was of help in the management of patients. HTA vasc received the scientific support of the Sociétés Françaises de Médecine Vasculaire, d' Hypertension Artérielle (French Societies of Vascular Medicine and Hypertension), and the Vascular Group of the Société Française de Cardiologie, with an external audit of the tools and activities undertaken in the region.
    Archives des maladies du coeur et des vaisseaux 12/2007; 100(11):947-54. · 0.40 Impact Factor
  • Article: [Why screening for a renal artery stenosis?].
    D Stéphan, C Griffon, A Hamade, C Jahn, M Welsch, C Mounier-Vehier
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    ABSTRACT: Diagnosis of renal artery stenosis (RAS) should be discussed in numerous clinical situations including refractory high blood pressure (HBP), HBP in a polyvascular patient, degradation of renal function following renin angiotensin inhibitor or flash pulmonary edema. Ultrasound-doppler coupled with gadolinium-enhanced MR or CT angiography has proven adequate for most patients with RAS. Digital subtraction angiography should be limited to revascularisation procedures. Functional testing are not sensitive or specific enough because the degree of renin activation differs widely among patients with RAS. Renal percutaneous angioplasty induces a light to moderate decrease in blood pressure, has no effect on renal function but allows to reduce the number of anti-hypertensive drugs. Stenting completed angioplasty is worthwhile in most patients with atherosclerotic RAS. ACE inhibitors decrease mortality and increase renal function in patients with RAS.
    Archives des maladies du coeur et des vaisseaux 11/2007; 100(10):872-7. · 0.40 Impact Factor
  • Article: [The metabolic syndrome: marker of cardiovascular risk in hypertensive patients? The importance of definition].
    P Marboeuf, M Gras, G Rosey, P Fontaine, C Mounier-Vehier
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    ABSTRACT: Metabolic syndrome (MetS) was defined by association of abdominal obesity, hypertension, glucose intolerance and/or dyslipidemia. The objective of this study was to compare the new International Diabetes Federation (IDF) definition and the National Cholesterol Education Program Adult Treatment Panel III (NCEP) definition and their association with cardio-vascular disease in hypertensive patients. Two hundred and thirty hypertensive patients were hospitalized successively for cardio-vascular disease exploration and hs-CRP measurement. The stratification of cardio-vascular risk was made according to the French recommendations. The IDF definition and the NCEP definition were compared according frequency of resistant hypertension and cardio-vascular disease extension. In our study, high cardio-vascular risk hypertension represented 68.5% of patients. Diabetes was present in 23.5% of them and obesity in 45.5%. Patients with cardio-vascular disease represented 60% of our study population. Prevalence of MetS was 38.5% according to the NCEP definition and 59% according to the IDF definition. The NCEP definition was allowed to select subjects with widespread vascular disease and resistant hypertension whereas the IDF definition did not. These results could be explained by lower waist circumference and glycaemia cuts offs according to the IDF criteria. When diabetic's patients were excluded, MetS was not associated with increase of resistant hypertension frequency. Moreover, hs-CRP was independently associated to the extension of the cardiovascular disease and smoking remained the most powerfully factor associated to the cardio-vascular disease extension. In hypertensive patients, the NCEP definition seems more adapted to the diagnosis of MetS than the IDF one. Abdominal obesity could be the indispensable element to the MetS diagnosis but according to the NCEP waist circumference cut off. The use of this syndrome seems to be relevant to select the patients presenting an intermediate cardio-vascular risk in order to adapt treatment.
    Archives des maladies du coeur et des vaisseaux 09/2007; 100(8):642-8. · 0.40 Impact Factor
  • Article: [The best of vascular medicine in 2006].
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    ABSTRACT: Peripheral arterial disease (PAD) remains an under-diagnosed affection, and the ankle-brachial index (ABI), a simple diagnostic method, is poorly known and seldom used, and the vascular patient's prescription list is frequently insufficient regarding results obtained in large trials with good methodology. The French ATTEST study underlines the fact that ABI is measured in less than 1 out of 3 patients with PAD. In ATTEST study, less than 10% have the triple therapy validated in PAD : antiplatelet drugs, statins and ACE-inhibitors. The international REACH registry included more than 60 000 patients suffering from atherosclerosis, including 8 000 cases with PAD. This survey evidences that in PAD patients, the annual cardiovascular complication rate is significantly higher than in patients with coronary artery disease (18 vs 13%); again PAD appears systematically under-treated when compared to CAD. These epidemiological surveys highlight the importance of screening of atherosclerotic lesions with the aim of setting an active prevention of CV complications. The new guidelines insist on the screening of PAD in patients at risk, as well as on the importance of the global management after initiating the triple therapy, independent of the CV risk factors. In a 5-year longitudinal study from an initial cohort of 2265 subjects, Aboyans et al. studied the progression of PAD by repeated measurements of ABI at the level of ankles and toes. Factors of progression for large-vessels PAD were active smoking, the total/HDL-cholesterol ratio, Lp(a) and CRP. Importantly, diabetes was not associated to the PAD progression in large vessels, but in contrast, it was the sole factor associated to the progression of PAD in small vessels. In an Austrian study published this year in the NEJM, Schillinger et al. compared balloon angioplasty versus the use of Nitinol stent for the treatment of long stenoses of the superficial femoral artery. In case of claudication, these lesions are usually treated medically, whereas surgery is required for more severe cases. The fact that stenting these long lesions of the superficial femoral artery provides benefits in terms of restenosis opens a approach for the endovascular therapy, to be confirmed by larger trials.
    Archives des maladies du coeur et des vaisseaux 02/2007; 100 Spec No 1:47-55. · 0.40 Impact Factor
  • Article: [The best of vascular medicine in 2005].
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    ABSTRACT: It is illusory to think that one year is long enough to establish all the truths that will guide our clinical practice in vascular medicine. On the contrary, one year was long enough to contradict what the preceding twelve months had set out to demonstrate. Consequently, promising trials in the treatment of abdominal aortic aneurysms by endoprostheses have been the object of contradictory debate with regards to the long-term benefits. In fundamental research, circulating progenitors of endothelial cells have been shown to be a marker of atherosclerosis, but is it a better marker than LDL-cholesterol values? The demonstration that these progenitors are of value in the treatment of essential ischaemia of the lower limbs is awaited. Finally, ximelagatran, a direct thrombin antagonist, seemed to have all the qualities of an ideal anticoagulant: easy to use, safe... until the report of raised hepatic enzymes, the clinical relevance of which remains to be determined. In the good news section: the Systolic Pressure Index, an unquestioned marker of arterial disease. Its reduction was known to be correlated with the prevalence of cardiovascular complications. However, it has now been shown that an increase in the index is also associated with cardiovascular complications, a real U-shaped curve. Renal arterial stenosis should be considered in patients with left ventricular failure presenting with flash pulmonary oedema. In the absence of cardiac pathology, BNP would seem to be a good biological marker of haemodynamically significant renal arterial stenosis. Finally, should superficial femoral artery stenosis be treated by an active stent. To date, there is no formal proof.
    Archives des maladies du coeur et des vaisseaux 02/2006; 99 Spec No 1(1):43-8. · 0.40 Impact Factor
  • Article: [Hypertension revealing aneurysmal renal fibrodysplasia].
    M Clément, S Duquenoy, M Koussa, J-P Beregi, C Mounier-Vehier
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    ABSTRACT: A 20-year-old woman consulted for severe hypertension which revealed aneurismal stenosing fibrodysplasia of the renal arteries. The diagnosis was established by duplex Doppler which visualized tight stenosis of the distal portion of the right renal artery and the proximal portion of the left, associated with aneurismal lesions downstream from the strictures (1.8 cm on the right and 1.3 cm on the left). The lesions were highly suggestive of fibrodysplasia and were confirmed by magnetic resonance angiography. Endoluminal revascularization was undertaken because of the severe hypertension and the presence of arterial lesions. Revascularization was unsuccessful and severe hypertension persisted. Surgery was performed in two stages. The first procedure consisted in resection of the left aneurismal lesion with aortorenal internal saphene bypass. Secondarily, exclusion of the right aneurysm was performed with cure of the stricture by extracorporal renal surgery with anastomosis of the renal artery to the aorta and the renal vein to the vena cava. Clinical outcome was favorable. Angioscan and duplex Doppler controls at three and six months confirmed the anatomic success of the revascularization. Aneurysm of the renal artery, like renal artery stenotic dysplasia, is a rare but probably underestimated condition due to insufficient screening. This diagnosis should be entertained in hypertensive young women. There is risk of rupture of the aneurysm. Aneurysmal lesions can be associated with renal artery stenosis which usually involves a short segment of the artery, as in our case. Renal aneurysms should be treated when one of the following elements is present: aneurysm measuring more than 20 mm, progressing aneurysm, dissection, discovery in a patient with a renal risk (single kidney, renal insufficiency), desire for pregnancy, severe hypertension recently discovered in a young subject associated with dysplastic stenosis, isolated aneurysm associated with recent severe hypertension, as reported here.
    Journal des Maladies Vasculaires 01/2006; 30(5):296-300. · 0.54 Impact Factor
  • Article: Control of cardiovascular risk factors in patients with type 2 diabetes and hypertension in a French national study (Phenomen).
    G Prévost, T M Phan, C Mounier-Vehier, P Fontaine
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    ABSTRACT: For some years now, the recommendations of scientific societies have significantly reduced the therapeutic targets for blood pressure, glycaemia and lipid levels in diabetic patients. However, little is known regarding the synchronization between effective risk factor management and the guidelines. To examine this issue, the Phenomen survey was conducted between January and July 2001 on 16358 patients suffering from hypertension followed by a general practitioner in France. To evaluate the control of cardiovascular risk factors in patients with diabetes and hypertension according to the French guidelines. 8177 general practitioners, selected from a national database according to quotas, taking into account age, practice and area, had to include the first two hypertensive patients they came across in their practice and to collect their demographic data, cardiovascular risk factors and medications. 2346 out of 16358 hypertensive patients presented with type 2 diabetes (14.3% of the cohort). The number of GP consultations in the last 12 months averaged 8.31. According to the French guidelines, 6.5% had a blood pressure<140/80 mmHg, a total of 38.7% patients met the goal of LDL cholesterol level and 26.6% of patients had an HbA1c<6.5%, 53.4% of patients had an HbA1c between 6.6 and 8%. 37.1% of patients continued to receive antihypertensive monotherapy but only 3% in this monotherapy group reached the target of 130/85 mmHg. 29% of the patients were on antiplatelet therapy. 64.6% of these hypertensive diabetic patients presented with more than three other cardiovascular risk factors. Based on WHO recommendations, 0.3% of the patients met all of the blood pressure, lipid and glycaemic treatment objectives. Despite frequent monitoring by a general practitioner, the overall management of modifiable risk factors in this diabetic hypertensive population is clearly inadequate. The impact of the guidelines on effective management remains limited and additional information is required to understand why physicians are not more aggressive in managing modifiable risk factors in diabetic patients.
    Diabetes & Metabolism 11/2005; 31(5):479-85. · 2.41 Impact Factor
  • Article: [The best of vascular medicine in 2004].
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    ABSTRACT: The wealth of information in vascular pathology merits close examination. The French Cardiology Society vascular group turned its attention to arteries, veins, hypertension and a more fundamental investigation to analyse the results from some illuminating studies which appeared in 2004, despite some pertinent therapeutic doubts. Examination of the trials discussed here shows the importance, as much in vascular pathology as elsewhere, of founding our practice on evidence based medicine.
    Archives des maladies du coeur et des vaisseaux 02/2005; 98 Spec No 1:7-13. · 0.40 Impact Factor
  • Article: [Reflux nephropathy and arterial hypertension].
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    ABSTRACT: This case-report emphasizes an uncommon cause of hypertension in an adolescent: reflux nephropathy. Reflux nephropathy is a frequent hypertension and renal failure etiology. Medical treatment is unknown from cardiologist.
    Annales de Cardiologie et d Angéiologie 12/2003; 52(5):313-6. · 0.28 Impact Factor
  • Article: Risk factors of early and late complications in patients undergoing endovascular aneurysm repair.
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    ABSTRACT: to identify pre-operative factors that could predict complications following from transluminal repair of abdominal aortic aneurysms (AAA). during a 5-year period, 96 consecutive patients underwent elective endovascular treatment of a AAA. In all patients, helical CT and/or Magnetic Resonance Imaging (MRI), and plain abdominal roentgenogram were performed at 1, 3, 6, 12, 18, and 24 months and yearly thereafter. Angiography was performed systematically 1 year after the stent-graft implantation, or earlier if helical CT or MRI diagnosed an increase in the maximal transverse diameter or a high flow endoleak. early (<30 days) morbidity (12%) was significantly increased by pre-operative renal insufficiency (p < 0.01). Early mortality (2%) correlated with ASA score (p = 0.01). Median follow-up was 27 months (range 3-66). Mortality (12%) during follow-up was correlated to the pre-operative coronary status (p = 0.01). A type I endoleak was diagnosed in 18 patients (19%). Common iliac artery diameter was correlated with the presence of type I endoleak (p < 0.001). A type II endoleak was diagnosed in 47 (49%) patients. The diagnostic of type II endoleak was significantly increased (p = 0.001) in patients with pre-operative patent IMA associated with more than four patent lumbar arteries. The anatomic characteristics of the aneurysm were correlated to the additional endovascular procedures during stentgraft implantation (p = 0.01), and to the implantation of a complementary iliac limb extension during follow-up (p = 0.01). the risk factors determined by this statistical analysis could help surgeons to select more accurately patients suitable for endovascular treatment.
    European Journal of Vascular and Endovascular Surgery 02/2003; 25(2):118-24. · 2.99 Impact Factor
  • Article: Percutaneous endovascular treatment for stenoses and occlusions of infrarenal aorta and aortoiliac bifurcation: midterm results.
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    ABSTRACT: evaluation and comparison of the endovascular treatment of isolated aortic and aortoiliac atherosclerotic lesions (stenoses and occlusions). a percutaneous endovascular procedure was performed in 52 patients (38 men and 14 women) with a mean age of 52 years (range, 25-85 years). The baseline angiogram showed 35 aortic lesions (31 stenoses, 4 occlusions) and 17 aortoiliac lesions (14 stenoses, 3 occlusions). Percutaneous techniques used in this series included variable combinations of transluminal angioplasty and stenting. All stents placements were performed over-the-wire using the transfemoral route (most often bilateral approach). Clinical examination and Duplex-scan were performed at discharge, 1 month, 6 months, 12 months, and then yearly. technical success was 100% for aortic and aortoiliac lesions. Angiographic success rates were comparable for aortic (91%) and aortoiliac (94%) lesions. No death occurred during or early after the endovascular intervention. Duplex-scan confirmed 100% patency rate at discharge. There was no significant difference between the aortic (94%) and aortoiliac (96%) groups regarding immediate clinical improvement. Mean follow-up was 34+/-31 months (range, 0-130 months). The cumulative primary patency rate at 36 months was 85% in the aortic group and 86% in the aortoiliac group. Clinical success, defined as a symptom-free status at the end of follow-up, was also similar in both groups. endovascular treatment of isolated aortic lesions of the infra-renal aorta has favorable outcomes comparable to those of aortoiliac lesions.
    European Journal of Vascular and Endovascular Surgery 01/2003; 24(6):516-23. · 2.99 Impact Factor
  • Article: [Renovaascular hypertension and Von Recklinghausen neurofibromatosis].
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    ABSTRACT: This clinical case illustrates the diagnosis of a secondary cause of hypertension in a patient with Von Recklinghausen's disease. The hypertension resulted from a complex malformation of the right renal artery and dysplasic stenosis of the left inferior polar artery treated successfully by simple angioplasty. This case illustrates the high proportion of vascular (renal artery dysplasia, coarctation of the aorta) and endocrine (pheochromocytoma) causes of hypertension in patients with neurofibromatosis.
    Archives des maladies du coeur et des vaisseaux 05/2002; 95(4):310-2. · 0.40 Impact Factor
  • Article: [Method of studying renal morphology in hypertensive patients with and without renal artery stenosis].
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    ABSTRACT: Although the size of the kidney is still the most commonly used as morphological parameter, it is not enough sensitive for early detection of ischemic nephropathy. To study a novel method of renal morphology analysis using spiral computed tomography angiography (CTA) in hypertensive patients with or without unilateral atheromatous renal artery stenosis (RAS). Forty-nine hypertensive patients suspected RAS underwent spiral CTA. Arteriography showed significant RAS in 26 patients. Renal length, 3 upper and 3 lower cortical thicknesses were measured in 46 control kidneys (C) i.e. 23 patients without RAS (group 1), in 26 stenosed (S) and in 26 opposite kidneys (OPP) i.e. 26 patients with unilateral RAS (group 2). Mean cortical thickness (MCT), cortical area (CA), medullary length (ML) were calculated in the same groups. The reproducibility and agreement of measurements were investigated in two groups. The demographic parameters (age, sex, bodymass index, and history of hypertension) were correlated with morphological parameters in group 1. The reproducibility and agreement of measurements were confirmed (R2 = 0.53 to 0.93) except for anterosuperior thickness. The C kidneys were of comparable morphology: MCT (mm) = 9.1 +/- 0.6; 9.2 +/- 1.0, CA (mm2) = 950 +/- 119; 934 +/- 157, ML (mm) = 85 +/- 11. In group of Opp kidneys, MCT = 7.9 +/- 1.4 mm, CA = 806 +/- 210 mm2, ML = 84 +/- 13 mm. In group of S kidneys, MCT = 6.6 +/- 1.6 mm, CA = 612 +/- 193 mm2, ML = 77 +/- 14 mm. Demographic parameters were not correlated to renal morphology. Spiral CTA is a suitable method to study renal morphology. Cortical thickness and medullary length could be used to obtain a reliable diagnosis of early ischemic nephropathy.
    Archives des maladies du coeur et des vaisseaux 09/2001; 94(8):919-24. · 0.40 Impact Factor
  • Article: [Blood pressure self-monitoring contributes to improved patient education among hypertensive subjects].
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    ABSTRACT: Education of hypertensive subject must sensitize the patient to its pathway and to the prescribed treatment. Self-measurement of blood pressure, which directly implicates the patient, should ameliorate the education of hypertensive subject. To evaluate if the possession of a self-measurement blood pressure device improves patients' knowledge of hypertension. In 484 treated hypertensive subjects referred to hypertension specialists, a questionnaire evaluating patients knowledge of hypertension and its treatment was given before the consultation. During this consultation, the practitioner evaluated the concordance between antihypertensive treatments declared by the patient and those effectively prescribed. In this population, aged 61 +/- 12 years, with 55% of men, a self-measurement blood pressure device was possessed by 165 subjects (34%). These devices have been bought without medical advice by 83 patients. For a minority of subjects (n = 41), self-measurements of blood pressure were made at the wrist. Blood pressure level was similar in subjects with (141 +/- 19/80 +/- 10 mmHg) or without (140 +/- 19/80 +/- 10 mmHg) self-measurement devices. Subjects possessing a self measurement device had a better knowledge of their usual blood pressure level and of the normal blood pressure values (< 140/90 mmHg), than subjects without self measurement device (93% vs 77%, p < 0.01, and 56% vs 33%, p < 0.01, respectively). Moreover, subjects in possession of self-measurement devices had a better knowledge of their antihypertensive treatment than those without device (83% vs 70%, p < 0.05). Logistic regression analysis including age, sex, smoking, education level, blood pressure level and the number of antihypertensive tablets confirm the statistical differences observed. Hypertensive subjects who possess a self-measurement blood pressure device have a better knowledge of their hypertension. These results indicate that the possession of a self-measurement device contributes to the education of hypertensive patients.
    Archives des maladies du coeur et des vaisseaux 08/2001; 94(8):879-83. · 0.40 Impact Factor
  • Article: [Are demographic characteristics of hypertensive patients different with renal artery stenosis?].
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    ABSTRACT: Atheromatous renal disease is more and more involved in end stage renal failure in polyatheromatous patients. The goal of this work was to study the demographic differences between hypertensive patients with renal artery stenosis (RAS) or without RAS. Between November 1995 and July 1997, 49 hypertensive patients were included consecutively for a suspicion of RAS. Age, sex, hypertension history, tabagism, cardiovascular heredity, body mass index, diabetes history, hypercholesterolemia, kalmia, serum creatinine, creatinine clearance, systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse pressure (PP) were studied. A renal echo-doppler and a renal TDM were performed in all patients. A renal arteriography was performed in 23 patients with a RAS suspicion after the two morphologic exams. The demographic characteristics of both clinical groups control (group 1) and patients with unilateral RAS (group 2), were compared. Descriptive analysis, Wilcoxon test, Khi 2 test, spearman correlation (p < 0.05). Group 2 patients were significantly older than group 1 patients (p = 0.008) with a mean age difference of 8 years. Creatinine clearance was lower in patients suffering from RAS with a mean difference of 23 mL/min between groups 1 and 2 (p = 0.0007) but we also had to take into account the negative correlation existing between creatinine clearance and age (r = 0.63; p = 0.0001) when interpreting these results. The DBP was lower (p = 0.03) and the PP higher (p = 0.01) in group 2. The SBP was higher in group 2 but this result was not significant. Mean differences in SBP and PP between group 1 and group 2 were 6 mmHg and 15 mm Hg respectively. Smoking was more common in group 2 (p = 0.04). The history of hypertension, cardiovascular heredity, sex ratio (M/F), body mass index and prevalence of diabetic were comparable between the two clinical groups. Although there were demographic differences between the two clinical groups, no clinical or biological variable could be used alone to identify which patients suffered from renal stenosis, because the distribution of these variables did not differ significantly between the two groups and the effective was small. Then, we thought that Krijnen's predictive rule is interesting in the screening of hypertensive patients with RAS suspicion.
    Archives des maladies du coeur et des vaisseaux 08/2001; 94(8):828-33. · 0.40 Impact Factor
  • Article: Rare variations in renal anatomy and blood supply: CT appearances and embryological background. A pictorial essay.
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    ABSTRACT: Helical CT angiography is increasingly used for the evaluation of the kidneys and the renal vessels. Knowledge of the potential variants in renal and renal vascular anatomy and of their appearances on helical CT are thus indispensable for radiologists who perform and interpret such examinations. We report six cases of anatomic variants that we encountered in our tertiary referral centre over the past 5 years, during which time we have performed 4850 helical CT angiograms, including 1432 renal artery examinations. These represent rarer anomalies in renal vascularization, most of which were associated with renal malformations (horseshoe kidney with or without cortical torsion, renal malrotation, single kidney, and thoracic origin of a renal artery). We present the helical CT findings and discuss the possible embryological mechanisms and the practical implications of these abnormalities for the radiologist.
    European Radiology 02/2001; 11(5):779-86. · 3.22 Impact Factor