CARDIOVASCULAR JOURNAL OF AFRICA • SMC-PAFCIC Abstracts October 2022 37 AFRICA freedom from reoperation after TAP, VSR, and RVPA-conduits could be identified. Analysis displayed transannular repair (p = 0.04) as significant risk factors for PVR. Important pulmonary regurgitation was the main cause for PVR. Two patients required percutaneous PVR 6 and 10 years respectively after surgical PVR for degeneration of the homograft valve. Conclusion: TOF repair has a beneficial long-term prognosis. Transannular repair is associated with earlier PVR. Submission ID: 1532 PARADOX OF OBESITY IS IT VALID IN MOROCCAN PATIENTS FOLLOWED WITH CHRONIC HEART FAILURE WITH REDUCED EJECTION FRACTION? H CHARIF, M EL MOUSAID, I NOUAMOU, M HABOUB, S AROUS, E BENOUNA, A DRIGHIL, L AZOUZI, R HABBAL MOROCCO Background: It has been shown in several studies that despite being an independent risk factor for the development of HF , obesity is associated with lower mortality in patients with established HF, giving rise to the term obesity paradox . Does this paradox apply to the Moroccan population? Objective: Investigate the impact of obesity on chronic heart failure with reduced ejection fraction (HFrEF) Methods: Cross-sectional study conducted between May 2006 and June 2021 including patients with HFrEF, followed in our department. Obesity was defined as a body mass index (BMI) ≥ 30 kg/m2. We studied 2 groups of patients: group 1 of obese patients and group 2 of patients with a normal BMI. Results: We collected 3412 patients: 723 (21.20%) in group 1, 2689 (78.8%) in group 2. The male rate was 62.1% vs 62.2% (P=0 ,9). The mean age was 63.34±11.60 versus 66.90±13.15 years (P<0.001). Regarding cardiovascular risk factors: hypertension in 47.4% vs 39% (P<0.001), diabetes mellitus in 37.5% vs 30% (P=0.001), dyslipidemia in 20.2%vs 10.4% (P<0.001), smoking in 31.3%versus 33.1% (P<0.001). Stroke in 12.6% vs 14.6% (P<0.001), thyroid dysfunction in 2.3% vs 1.5% (P<0.001), end stage CKD in 5.7% vs 7.1% ( P<0.001). Ischemic heart disease was represented in 61.1% vs 54.6%, dilated cardiomyopathy in 6% vs 5.8%, valvular heart disease in 2.8% vs 4.3%, hypertrophic cardiomyopathy in 0.9% vs. 0% (P<0.001). Atrial fibrillation in 14.2% versus 11% (P<0.001). Echocardiographic characteristics: LVEDDD was 57.87 ± 8.24 mm vs 57.78 ± 8.94 mm (P = 0.875), mean LVEF was 34.52 ± 13.02% vs 34.73 ± 13.10 % (P=0.884), elevated left ventricular filling pressures in 17.5% vs 25.5% (P<0.001), severe secondary mitral regurgitation in 4.6% vs 7% (P<0.001). The M:F hospitalization rate was 20.4% versus 25.7% (P<0.001). Conclusion: Obesity paradox is confirmed in our population as obese HF patients are less symptomatic and have lower rates of hospitalisation for HF and lower mortality rate compared to patients with a normal BMI. Submission ID: 1533 CLINICAL CHARACTERISTICS OF PATIENTS WITH IMPROVED HEART FAILURE ALI KHORCHANI, TAHALASSOUED, HOCINEBENABDELHAFIDH, ZINDELABIDINE BEN ALI, SAMI MILOUCHI, KHALIL OUZGHLANI, RIDHA FEKIH, MOHAMED FAKHFAKH TUNISIA Background: Heart failure (HF) represents a major public health issue due to its high morbidity and morbidity rate and its burden on the health care system. Nowadays, a new subset of HF class has been recently described representing patients with reduced left ventricular ejection fraction (LVEF) who have shown an improvement in ejection fraction, spontaneously or in response to a therapeutic intervention. Aim: We sought by this study to describe clinical characteristics of patients with HF with improved LVEF (HFiEF). Patients and methods We conducted a monocentric survey including patients aged 18 years and older diagnosed with HF with reduced LVEF (<40%). After a 1-year follow-up involving at least one echocardiography reexamination, we identified patients who had shown an improvement of the LVEF to reach a LVEF > 50%. Results: In all, 87 patients were enrolled in the study. The time period between enrolment and the control transthoracic echography was on average 8 months. Patients who had shown an improvement of LVEF were 13.8% (12 patients). However, 86.2% (75 patients) had a persistent reduced LVEF (HFrEF). The mean age was 66.1 years and the gender ratio was 1.5. Hypertension (HTA) was the most common comorbidity (39.7%, n=39) followed by diabetes (33.3%, n=29). Patients with HFiEF were younger (mean age: 58.5 vs 67.7; p= 0.04), had more recent onset of heart failure (41.6% vs 22.9%; p=0.01) and less prevalence of diabetes (25% vs 56%; p=0.04). Prevalence of HTA and atrial fibrillation (AF) were similar (HTA: 41.7% vs 52%; p=0.5; AF: 16.7% vs 28%; p=0.4). As for the ethology of heart failure, ischemic cardiomyopathy was the most frequent for both groups followed by hypertensive cardiomyopathy in HFiEF and valvular cardiomyopathy for patient with persistent HFrEF. Conclusion: HFiEF is a relatively recent description of a subset of HF patients, it is characterised in our study by a younger age, less prevalence of diabetes and a more common de novo HF. Submission ID: 1534 ACUTE CORONARY SYNDROME REVEALING A BEHCET’S SYNDROME IN A YOUNG MAN TAHA LASSOUED, ALI KHORCHANI, ZINELABIDINE BEN ALI, SAMI MILOUCHI, IMANE BOUALAOUI, RIDHA FEKIH, KHALIL OUAGHLANI, BEN ABDELHAFIIDH HOCINE, ACHRAF HAMDANI TUNISIA Background: Behcet syndrome is a chronic and rare multisystemic vasculitis characterized by recurrent oral and genital ulcers, ocular inflammation, skin lesions and frequent articular involvement. Vascular involvement in Behcet syndrome can affect both arteries and veins of any diameter. However, coronary arteries are rarely MODERATED POSTER SESSION
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