Publications by authors named "Nizar Annabi"

Background: Arterial and venous thrombosis are well recognized systemic complications of inflammatory bowel disease predominantly in patients with crohn's colitis and in those with ulcerative colitis (UC). Aim : report a new case.

Case: We describe the case of a 35 years old man presenting previously an anterior infarct with a tighten stenosis in the middle part of the left anterior descending artery (LAD).

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Background: Exposure of patients to radiation from invasive cardiac procedures is high and may be deleterious.

Aims: To assess the effectiveness of a dose-reduction programme based on radiation-protection training, according to the recommendations of the Euratom Council, the International Commission on Radiological Protection and the French Society of Cardiology.

Methods: In this single-centre survey, dose-area product (DAP, Gy.

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Background: Doppler echocardiography is currently the main tool permitting the diagnosis and the characterization of the stages of diastolic dysfunction.

Aim: The purpose of this study is to precise the contribution of Doppler tissue imaging in the study of diastolic function and to identify the parameters having the most discriminating power of diastolic dysfunction in hemodialysis patients.

Methods: Conventional Doppler echocardiography study implies left ventricular diastolic function from: Doppler transmitral flow (E/A, isovolumic relaxation time (TRIV), deceleration of mitral E-wave time (TDE), duration of A wave), color M-mode flow propagation velocity (Vp); The study of pulmonary venous flow (S/D, Systolic fraction (FS) and duration of pulmonary venous A wave); The annulus Doppler Tissue Imaging (Ea/Aa, E and A waves durations, VTI of E and A); and finally combined indexes (ratio of peak E-wave velocity to Vp (E/Vp), difference in duration between pulmonary venous and mitral flow A wave (Ap-Am) and ratio of peak mitral and annulus E-wave velocities (E/Ea).

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Background: The dobutamine echocardiography takes more and more an important place in diagnosis, prognosis and therapeutics strategies of the coronary disease.

Aim: We prospectively enrolled 130 consecutive patients followed for a coronary insufficiency

Methods: the aim of determinating the diagnostic value of the dobutamine echocardiography in the myocardial ischemia compared with the classic means as the exercise test and the myocardial scintigraphy.

Results: Our results are comparable to the data of the literature, the dobutamine echocardiography is more specific than the exercise test and the myocardial scintigraphy (96 %, 61% and 53 %), more sensitive than exercise test (75 % versus 47 %) but less sensitive than the myocardial scintigraphy (75 % versus 96 %).

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To evaluate the predictive factors of significant coronary stenosis in women, we have studied retrospectively data from 230 women explored by coronary angiography. The population has been divided in 2 groups: one (G1) without significant coronary lesions; the second (G2) having at least one significant coronary stenosis (> 50%). The prevalence of the significant disease was 54.

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Diabetes represents as independent risk factor for coronary artery disease (CAD) and the prognosis in term of survival rates is worse for diabetic patients who have CAD with report to those with CAD but no diabetes. The coronary artery disease in diabetes has specificities and, in particular, more extensive atherosclerosis. Diabetic patients are also more frequently asymptomatic.

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The stress echocardiography is used extensively as a diagnostic and prognostic tool and the assessment of ischemic cardiopathies. Its use in valvulopathies is more limited, but is increasing with time. The discrepancies between the functional symptoms and hemodynamics at rest is frequently met in patients with mitral stenosis.

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The stress echocardiography with dobutamine confirms her increasing value for the patients with severe aortic stenosis and left ventricular dysfunction in a diagnosis concept by selecting the true severe stenoses and revealing stenoses overestimated by the low fow, and especially prognosis by means of the stratification of the operatory risk and the search for a contractile reserve which represent the guarantee of a survival per and postoperatoire satisfactory. As regards asymptomatic aortic stenosis the times of intervention are in reevaluation, the compliance valvulaire represent reliable means which needs confirmation for a prophylactic indication for surgery.

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The ambulatory treatment of venous thromboses is made possible since the avenement of the low molecular weight heparins, which ensures an efficacy and a safety, comparable with the infractioned heparins, with less side effects and hemorrhagic complications. The simplicity of the therapeutic diagram with the low molecular weight heparin, the biological monitoring less astringent as well as the reduction of the cost of the treatment constitute solid arguments in favour of this therapeutic modality. The essential condition for such attitude remains the respect of the indications and of counter indications.

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