AFRICA CARDIOVASCULAR JOURNAL OF AFRICA • SMC-PAFCIC Abstracts October 2022 34 Submission ID: 1518 A LOOK AT SUPPORT HEART FAILURE: EXPERIENCE OF THE HEART FAILURE TREATMENT UNIT OF THE IBN ROCHD UNIVERSITY HOSPITAL H CHARIF, M EL MOUSAID, I NOUAMOU, M HABOUB, S AROUS, E BENOUNA, A DRIGHIL, L AZOUZI, R HABBAL MOROCCO Background: Heart failure (HF) is a problem of public health, with increasing frequency, a severe prognosis and a high cost to society. Objective: The objective was to identify the epidemiological, clinical and the outcome of heart failure (HF) heart failure treatment unit of the IBN ROCHD university. Method: A retrospective study using a serie of 254 patients admitted in heart failure treatment unit of the IBN ROCHD university hospital from february 2020 to july 2022. Results: The mean age was 60 ± 15.5 years. Men were mostly represented with a ratio H/ F = 3.7. The main cardiovascular risk factor was hypertension (61%) followed by diabetes (39%) and smoking (35%). Dyspnea was the main symptom reported in 90% of the cases. The clinical presentation was that of left (55%), right (21%) and global (17%) HF. Among electric signs, we found Q-wave (56%), a Atrial fibrillation (34%) and left ventricular hypertrophy (29%). Biology showed electrolyte abnormalities in 55% of the cases, renal failure (26%) and anemia (19%). In echocardiography, the mean left ventricular ejection fraction (LVEF) was 31.5 ± 4.7%. LVEF was > 45% for 17% of patients. The main causes were ischemic heart disease (62%), dilated cardiomyopathy (20%) and valvular heart disease (12%) the most frequently prescribed drugs were diuretics (96%) and converting enzyme inhibitors 242 of cases (95.2%). Among patients with coronary artery disease, 36%were revascularized . 12 of patients underwent a mitral valve replacement with mechanical prosthesis. In addition to optimal medical treatment, 12 of our patients underwent cardiac resynchronization with or without a defibrillation system. Conclusion: The main features of this population is the relatively young age, male predominance, Ischemic heart disease is the main etiology in our study. The prevention of ischemic heart disease is one of the utmost important keys to fight against heart failure. Submission ID: 1520 HEART RATE RECOVERY AFTER EXERCISE IN CHILDREN KAOUTHAR HAKIM, SYRINE BENJEDDOU, RIHAB BEN OTHMAN, SABRINE SOUDANI, ELLA HMAIER, NOUHA MEKKI, MOHAMED AMINE SOULA, CHAIMA GHORBEL, AMIRA TALHAOUI, KARAM ZEREI, HELA MSAAD, FATMA OUARDA TUNISIA Background: The individual ability to exercise is directly determined by the strength of cardiac vagal activity. The recovery period after exercise is accompanied by a withdrawal of sympathetic drive and a vagal reactivation. Heart rate recovery (HRR), defined as the decrease of heart rate 1 minute after cessation of exercise, is a simple parameter to estimate vagal activity and therefore exercise capacity. The aim of this study is to measure the HRR in children with normal echocardiography in order to evaluate their exercise capacity. Methods: We conducted a cross sectional study in the pediatric cardiology department of La Rabta hospital. We included patients who consulted for chest pain and palpitation with normal echocardiography. Treadmill exercise test according to the standard Bruce protocol was underwent to all patients over a period of twomonths (July and August 2022). The value of HRR was measured as the difference between peak heart rate and heart rate 1 min after cessation of exercise. Results: A total of 22 patients were included with a mean age of 9.6±2.8 years ranging from 5 to 14 years and a sex-ratio equal to 0.6. Patients had a mean value of HRR of 41.4 ±12.4 beats per minute (bpm) ranging from 25bpm to 66bpm. The mean of HRR was significantly higher among boys (50.1±10.8bpm vs 36.4±10.6bpm; p=0.009) and among those who had vagal hypertonia (57.0±5.5bpm vs 35.6±8.4bpm; p<10-3). It was significantly lower in patients with submaximal exercise testing (exercise test stopped for fatigue) (25.6±0.6bpm vs 43.9±11.5bpm; p<10-3) No significant difference was found according to age and baseline heart rate. Conclusions: One-minute heart rate recovery after exercise, which may be a reflection of vagal activity, was slower in children with lower exercise endurance. Therefore, HRR may be a strong indicator of exercise capacity. Children with lower HRR should be encouraged to perform regular exercise training in order to optimize their physical fitness and improve their exercise performance. Key words: Exercise testing, Heart rate recovery, children Submission ID: 1521 PERFORATED BALLOON TECHNIQUE: A SAFE AND SIMPLE METHOD TO DEAL WITH NO-REFLOW PHENOMENON DERBEL EMNA, BEN ALI ZINEELABIDINE, HADJ MBAREK MOHAMED GHASSEN, FAKHFAKH MOHAMED, KHORCHANI ALI, NOURI FIRAS, GACEUR RADHIA, MILOUCHI SAMI TUNISIA Background: No reflow is a challenging complication of percutaneous coronary intervention and is associated with a worse prognosis both at short and long term follow up. Therapeutic approach to such a phenomenon requires knowledge of mechanisms, methods of diagnosis and response to treatment modalities. Several pharmacological and non-pharmacological interventions have Distal instillation of vasoactive drug via perforated balloon No reflow Perforated balloon technique TIMI III flow restored MODERATED POSTER SESSION
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