AFRICA CARDIOVASCULAR JOURNAL OF AFRICA • SMC-PAFCIC Abstracts October 2022 48 Submission ID: 1627 PREVALENCE OF ARRHYTHMIAS ON 24‑H AMBULATORY HOLTER ELECTROCARDIOGRAM MONITORING: FROM 24-H AMBULATORY HOLTER ELECTROCARDIOGRAM REGISTER OF MOHAMMED VI UNIVERSITY HOSPITAL OF MARRAKECH ZAINAB BOUDHAR, HAFSSA ROUAM, MOHAMED EL JAMILI, MUSTAPHA EL HATTAOUI MOROCCO Background: The 24 h ambulatory Holter electrocardiogram (ECG) detect and quantify cardiac dysrhythmias in individual patients. It is particularly able to document bradyarrhythmic or tachyarrhythmic episodes which might be missed on normal 12‑lead resting ECG recordings. It is, therefore, useful to identify patients with symptomatic or asymptomatic paroxysmal tachy/bradyarrhythmias. Objective: The aim of this study is to present our findings on the prevalence of arrhythmias detected on the 24‑h Holter ECG of relatively a large cohort of patients referred to the noninvasive unity of cardiology in university hospital center Mohammed VI of Marrakech over the last few years. Methods: A total of 380 patients data was collected from the register of 24 h ambulatory Holter ECG in the non-invasive exploration unity of university hospital center Mohammed VI of Marrakech, From January 2019 to November 2021, consisting of 148 males and 232 females with a mean age of 56,31 ± 14,58. Results: The most common indication for Holter monitoring in this group was unexplained palpitations. Ventricular extrasystole was the most common arrhythmias found on Holter ECG. Only 9 out of the 380 patients had Holter ECG evidence of non-sustained ventricular tachycardia (VT). There was no significant difference in the prevalence of cardiac arrhythmias in males compared to their female counterparts. However, in the group of elderly patients (65 years and above), the prevalence of cardiac arrhythmias was significantly higher. Conclusion: The study suggests that palpitation is the main indication for 24‑h ambulatory Holter ECG test. It also showed that ventricular extrasystoles are the most common arrhythmias detected. In addition, it reinforces the fact that elderly patients were more likely to have cardiac arrhythmias compared to their younger people. Submission ID: 1630 PERCUTANEOUS TREATMENT FOR COMPLEX COARCTATION OF THE AORTA AMAMOU IMEN, OUANES SAMI, GRIBAA RIM, SLIM MEHDI, BEN FARHAR SAMEH, NEFFATI ELIES TUNISIA Background: Coaraction of the aorta is a common congenital heart disease with high mortality rate in absence of treatment. Endovascular repair has become the procedure of choice among adults. Several anatomic or evolving characteristics of coarctation may create challenging conditions for percutaneous repair. Case presentation: A 52-year-old patient was referred to the cardiology department for further investigations of resistant hypertension. Physical examination revealed asymmetric blood pressure between upper and lower limbs beyond 30 mmHg and bilaterally diminished femoral pulses. Electrocradiogram showed a sinus rhythm and left ventricle hypertrophy. Transthoracic echocardiogram revealed a preserved left ventricle ejection fraction with diastolic dysfunction and severe coarctation of the aorta (CoA) without aortic valve neither root diseases. Cardiac computed tomography scan confirmed the tightness of Coronal reconstruction CT scan showing a severe and tortuous coarctation of aorta isthmus with post stenotic dilatation CT Scan A: Aortic angiography via radial access showing the severe coarctation of the aorta with develpped collaterals B: Successful cross of the coarctation with hydrophilic guide wire C: predilatation with a vascular balloon D/E: Stent deployment F: Good stent position and remodeling of aortic area with no complications. Percutaneous procedure step by step: MODERATED POSTER SESSION
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