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Cardiovascular Journal of Africa • ABSTRACTS – SA HEART
®
CONGRESS 2019
S11
AFRICA
Correlation between global longitudinal strain and diastolic left ventricular function in hypertensive patients
Monia El Mourid, Zakaria Qechchar, Fatima Ez-zahraa Talhi, El Mehdi Aqli, Imad Nouamou, Leila Azzouzi and Rachida Habbal
Cardiology Department, Ibn Rochd University Hospital, Casablanca, Morocco
Introduction:
Heart failure with preserved LVEF is an important cause of mortality and morbidity in hypertensive patients. A close correlation between
impaired diastolic function and longitudinal systolic dysfunction could have several explanations. The diastole is a dependent energy process, especially
during its first phase. It also includes active systolic components during the iso volumetric relaxation phase, in addition, the achievement of intrinsic myocyte
function is part of hypertensive pathology, as evidenced by recent studies.
Methods:
This work consisted of performing a full echocardiography study in a series of 111 hypertensive patients (25 - 75 years of age), including biplane
Simpson LVEF, left indexed ventricular mass the diastolic function and finally the study of LV longitudinal deformation by speckle tracking technique (GLS).
Patients with secondary hypertension, leaking or stenosing valvulopathy, arrhythmia and history of coronary insufficiency were excluded from this study.
Results:
Of the 111 hypertensive patients, 75 (67.5%) had diastolic function impairment, of which 20 patients (18%) had high filling pressures. A total of
49.39% had echocardiographic hypertrophy of the left ventricular, almost all of these (20 patients) had a low GLS. There is a statistically significant relationship
between the decrease in GLS and the elevation of left ventricular filling pressures in hypertensive patients. These results suggest that the increase in filling
pressures can be closely associated with the atrioventricular interaction in patients with hypertension, a perfect correlation with the achievement of
longitudinal systolic function and diastolic function.
Conclusion:
A linear relationship is noted between left ventricular mass increase, diastolic dysfunction and LV systolic dysfunction.
Peak aortic jet velocity and its correlation with the severity of aortic stenosis: A Moroccan experience
Monia El Mourid, Fatima Ez-zahraa Talhi, Zakaria Qechchar, Isis Azannai, Leila Azzouzi and Rachida Habbal
Cardiology Department, Ibn Rochd University Hospital, Casablanca, Morocco
Introduction:
The definition of very severe aortic stenosis (AS), based on peak aortic jet velocity (Vmax), remains unclear with a 5-m/s cut-off in the US and
5.5m/s noted in European guidelines. There are limited data regarding risk stratification based on Vmax in patients with severe AS. The aim of this study was to
compare the clinical features and echocardiographic parameters in patients with Vmax >5m/s and <5m/s.
Methods:
We achieved a prospective, single-centre study from October 2017 - January 2019, of patients followed for valvulopathies in the cardiology
department of the Ibn Rochd University Hospital, Casablanca, Morocco. We included all patients with severe AS defined by a Vmax >4m/s, Gmoy >40mmHg
and AS <0.6cm/m². Our patients were divided into 3 groups : G1: Vmax 4 - 4.4m/s, G2: Vmax 4.5 - 4.9m/s and G3: >5m/s.
Results:
A total of 73 patients had AS and 34 of them (46%) had severe AS. The mean age was 62.24 (± 12.08) and sex ratio 0.9. The number of patients was
17 in G1, 10 in G2 and 6 in G3. Sixty-six percent in G3 had dyspnea >II NYHA vs. 88% in G1 and 2.16 vs. 5% had angina, no one had syncopa in G3 vs. 1 in
G1 and 2. No patient in G3 had left or right ventricular heart failure. Electrically, 77% in G1, 80% in G2, and 66% in G3 of patients were in sinus rhythm. Fifty
percent vs. 33% in G3 had repolarisation disorders. Left ventricular hypertrophy was found in 70% in G1 and 2 vs. 50% in G3. A left ventricular dysfunction (LV)
was discovered in 30% of the 3 groups by the Simpson Biplan method and right ventricular dysfunction in 10% in G1 and 2 vs. 16% in G3 (p>0.001).
Conclusion:
In our study Vmax >5m/s was not correlated to worse presentation, though another study is being done to assess the prognosis of this Vmax on
long term morbidity and mortality.
Prevalence and related factors of metabolic syndrome in hypertensive patients in a Moroccan population
Monia El Mourid, Zakaria Qechchar, Fatima Ez-zahraa Talhi, El Mehdi Aqli, Imad Nouamou, Leila Azzouzi and Rachida Habbal
Cardiology Department, Ibn Rochd University Hospital, Casablanca, Morocco
Introduction:
Metabolic syndrome (MS) is an emerging entity which refers to the grouping together of, in the same person, several metabolic abnormalities
which each predisposed to cardiovascular risk. In hypertensive patients cardiovascular diseases are the main cause of mortality and the prevalence of MS
is poorly known. The objective was to determine the prevalence of MS, and its associated factors, in a sample of patients with high blood pressure in a
Moroccan population.
Methods:
Cross-sectional study involving 221 patients with arterial hypertension (>20 years). The following measures were performed: blood pressure;
body mass index (BMI); plasma glucose and lipid levels. Blood pressure criterion: mean systolic blood pressure >140mmHg and/or diastolic blood pressure
>90mmHg. The diagnosis of metabolic syndrome is retained according to WHO criteria and NCEP-ATP III criteria.
Results:
A total of 221 hypertensive patients were analysed, 80.53% were women, the mean age was 60 ± 10 years. The prevalence of MS was 69.11%, mainly
amongst the women. Central obesity was the most common component of MS, accounting for 72.39% of patients (12.3% of men and 87.7% of women).
Amongst other factors, low HDL-C was present in 66.51% (20.67% of men and 79.33% of women), hyperglycemia in 70.13% (16.28% of men and 83.72% of
women) and high triglycerides in 67.42% (20.81% of men and 79.19% of women).
Conclusion:
The prevalence of metabolic syndrome is high in patients with high blood pressure. This highlights the importance of routine screening of
hypertensive patients for other risk factors for cardiovascular disease.