National Tunisian Study of Cardiac Implantable Electronic Devices: Design and Protocol for a Nationwide Multicenter Prospective Observational Study.

BACKGROUND: In Tunisia, the number of cardiac implantable electronic devices (CIEDs) is increasing, owing to the increase in patient life expectancy and expanding indications. Despite their life-saving potential and a significant reduction in population morbidity and mortality, their increased numbers have been associated with the development of multiple early and late complications related to vascular access, pockets, leads, or patient characteristics. OBJECTIVE: The study aims to identify the rate, type, and predictors of complications occurring within the first year after CIED implantation. It also aims to describe the demographic and epidemiological characteristics of a nationwide sample of patients with CIED in Tunisia. Additionally, the study will evaluate the extent to which Tunisian electrophysiologists follow international guidelines for cardiac pacing and sudden cardiac death prevention. METHODS: The Tunisian National Study of Cardiac Implantable Electronic Devices (NATURE-CIED) is a national, multicenter, prospectively monitored study that includes consecutive patients who underwent primary CIED implantation, generator replacement, and upgrade procedure. Patients were enrolled between January 18, 2021, and February 18, 2022, at all Tunisian public and private CIED implantation centers that agreed to participate in the study. All enrolled patients entered a 1-year follow-up period, with 4 consecutive visits at 1, 3, 6, and 12 months after CIED implantation. The collected data are recorded electronically on the clinical suite platform (DACIMA Clinical Suite). RESULTS: The study started on January 18, 2021, and concluded on February 18, 2023. In total, 27 cardiologists actively participated in data collection. Over this period, 1500 patients were enrolled in the study consecutively. The mean age of the patients was 70.1 (SD 15.2) years, with a sex ratio of 1:15. Nine hundred (60%) patients were from the public sector, while 600 (40%) patients were from the private sector. A total of 1298 (86.3%) patients received a conventional pacemaker and 75 (5%) patients received a biventricular pacemaker (CRT-P). Implantable cardioverter defibrillators were implanted in 127 (8.5%) patients. Of these patients, 45 (3%) underwent CRT-D implantation. CONCLUSIONS: This study will establish the most extensive contemporary longitudinal cohort of patients undergoing CIED implantation in Tunisia, presenting a significant opportunity for real-world clinical epidemiology. It will address a crucial gap in the management of patients during the perioperative phase and follow-up, enabling the identification of individuals at particularly high risk of complications for optimal care. TRIAL REGISTRATION: ClinicalTrials.gov NCT05361759; https://classic.clinicaltrials.gov/ct2/show/NCT05361759. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR1-10.2196/47525.

Management of patients with cardiovascular diseases during Ramadan.

During the month of Ramadan, over one billion Muslims observe a water and food fast from sunrise to sunset. The practice of this religious duty causes marked changes in eating and sleeping habits. With the increasing incidence of cardiovascular (CV) risk factors, the number of patients with CV pathologies who wish to fast is increasing worldwide, and in Tunisia, which is ranked as a high CV risk country. If fasting has been shown to be beneficial for the improvement of some metabolic parameters, its practice in patients with CV pathology remains debated. The Tunisian Society of Cardiology and Cardiovascular Surgery (STCCCV) in consultation with the National Instance of Evaluation and Accreditation in Health (INEAS) has established this document in the form of a consensus after having analysed the literature with the aim of addressing these questions: -What is the impact of fasting in patients with CV pathologies? -How to stratify the risk of fasting according to CV pathology and comorbidities? -How to plan fasting in patients with CV diseases? -What are the hygienic and dietary measures to be recommended during fasting in patients with CV pathologies? -How to manage medication during the month of Ramadan in patients with CV diseases?

Neonatal cardiogenic shock revealing obstructive cardiac Hibernoma: case report.

BACKGROUND: Cardiac Hibernomas are very rare benign tumors and usually remain asymptomatic. Neonatal cardiogenic shock due to cardiac tumors is extremely very rare. Until this date a few cases of cardiac hibernoma have been reported in the literature. Transthoracic echocardiography help in the differential diagnosis, but the definitive diagnosis is histological. The management strategy is not clearly codified. The Aim is to report and discuss the clinical features of a cardiac Hibernoma and review the relevant literature. CASE PRESENTATION: We describe a case of a 2-day-old Caucasian full-term male neonate admitted in neonate intensive care with cardiogenic shock, having fluid resuscitation and inotropic drugs. Ventilatory support was started immediately with the subsequent reestablishment of normal blood pressure. Then he was transferred to the echocardiography laboratory. Transthoracic echocardiography showed two echogenic masses in the right atrium and right ventricle. The masses were extended to the pulmonary trunk. Pulmonary artery flow measurements showed the presence of pulmonary and tricuspid obstruction. Surgery was rapidly considered since the baby was hemodynamically unstable. Intraoperative evaluation showed a mass embedded in the interventricular septum that occupy the right ventricular cavity and the right atrium. The tumor involved also the chordae of the tricuspid. Partial resection was done. Tricuspid valve repair was performed by construction of new chordae from the autologous pericardium. The specimen was sent for histopathological analysis. The baby died immediately after surgery. Histological examination of the surgical specimen revealed clear multivacuolated cells filled with lipid droplets and granular intense eosinophilic cytoplasm which confirms the diagnosis of Hibernoma. CONCLUSION: Cardiac Hibernomas are rare benign tumors. The prognosis and treatment strategy is closely dependent on the location, initial clinical presentation and possible complications. The prognosis can be unfavorable if the tumor was obstructive and infiltrate the myocardium.

Trans-Catheter Closure of Patent Ductus Arteriosus, which device should we use?

Despite the operational experience in the percutaneous closure of Patent ductus arteriosus (PDA), complications can arise during the procedure. To overcome these complications the choice of the device must be adapted to each patient. AIM: To report the experience of the cardiology department in the transcatheter device closure of PDA and to determine the influencing factors of choice of the device. METHODS: Our study included patients with patent ductus arteriosus that are admitted for transcatheter closure, between September 2003 and June 2016. RESULT: One hundred and fifty-three patients were included in our study. Transcatheter closure was not done in 9 cases. The transcatheter closure was successful in 140 patients. The complications were observed in 11 patients that includes device embolization in 3 cases, aortic protrusion in four cases pulmonary protrusion in three cases and inguinal hematoma in one another. Three predictive factors of complications were: age < 2 years, tubular PDA type C and ratio duct diameter/weight > 0.95. A mild residual shunt was observed at the end of the procedure in 22.85 % of the patients. The risk of residual shunt was significantly increased when the age < 2 years, the large PDA, the presence of pulmonary hypertension and the tubular C PDA. CONCLUSION: The choice of the device depends essentially on age, the weight and the duct anatomy.

Neonatalogist-performed echography in neonatology: a Tunisian experience.

INTRODUCTION: Echocardiography is an important tool for diagnosis of cardiac abnormalities that can impact the management and outcome of the sick newborn in the intensive care unit. A preliminary echocardiogram performed by the neonatologist under the supervision of a paediatric cardiologist for interpretation and review is an alternate when there is not a cardiologist on site. The aim of this study was to evaluate frequency of use, neonatal characteristics, and indications of neonatologist-performed echocardiography in a Tertiary Neonatal Care Centre in Tunisia. METHODS: Prospective observational study in a tertiary Neonatal Intensive Care Unit (NICU) in Monastir (Tunisia) from April 2015 to February 2017.An echocardiography was indicated in these situations: cyanosis, signs of circulatory shock, clinical signs of heart failure, presence of a murmur, arrhythmia, and abnormal pulses in upper and/or lower extremities, suspected persistent pulmonary hypertension in neonates, clinically suspected patent ductus arteriosus, maternal diabetes mellitus and polymalformative syndrome. The findings of echocardiography were confirmed by pediatric cardiologist in case of structural or functional cardiac abnormalities. RESULTS: 675 echocardiography were performed among them 535 were normal and 25 revealed a persistent arterial duct treated with E2 postaglandins (Prostine®) or paracetamol according to a pre-established protocol. 80 Congenital heart diseases were retained, which represented an incidence of 7 ‰ live births. The second time of our work consisted to study the 55 cases of cardiac diseases confirmed after exclusion of atrial communication. The antenatal diagnosis was made in 11% of cases. The main signs indicating the echocardiogram were the heart murmur (22 cases) followed by cyanosis (6 cases). A malformation association and / or a chromosomal aberration have been noted in 36% of cases. For half of the patients, the cardiac ultrasound was performed before the first 24 hours of life. This examination was completed by a thoracic angioscan in 9 patients. 31% of newborns had an infusion of Prostaglandins for an average duration of 11 days [2-60 days]. One-third of newborns (35 cases) required respiratory assistance. A palliative surgery was made in 7 cases and curative one in 4 cases. The average age at the time of the intervention was 20 days. The neonatal mortality rate was 40%. CONCLUSION: Echocardiography is being utilized progressively on the neonatal unit, and has been indicated to have a high return for both structural and functional cardiac abnormalities. It is important to encourage collaboration with pediatric cardiologists to establish standards for training and to develop guidelines for clinical practice in order to improve neonatal care.

Conservative Management of Cardiac Hemangioma for 11 Years.

Cardiac hemangiomas are benign tumors with an unpredictable natural history. Surgical resection is the treatment of choice; however, conservative management can be an alternative in some patients. We report a case of a left-sided cardiac hemangioma that we managed conservatively for 11 years without obvious major complications in the patient, an adult woman.

Short, midterm and late results of percutaneous coronary interventions for left main coronary artery disease.

BACKGROUND: Left main coronary artery disease is found in 4-6% of patients undergoing diagnostic coronary angiography. Coronary artery bypass graft is the gold standard. However, percutaneous coronary intervention is a continuously evolving substitution for surgery in such patients. METHODS: We report a retrospective study of 32 patients with relevant left main coronary artery disease treated by angioplasty in our faculty, between January 2005 and March 2011. RESULTS: The mean age of the population on the study was 59.7±10.9 years. The sex-ratio was 3.57. The rate of angiographic success was 97%. The in-hospital stay was uneventful in 94%¨of our patients. Only one patient died of cardiogenic shock complicating an acute anterior myocardial infarction. After a mean follow up of 18.5 ± 15.4 months, the in-stent restenosis rate was 16.12%. The rate of major adverse cardiac events (MACE) was 29%. Independent predictive factors of MACE were: cardiogenic shock on admission (p=0.022), emergency procedures (p=0.033), Euroscore > 6 (p=0.001), Parsonnet score > 20 (p=0.036), High C réactive protein levels on admission (p=0.007),le taux de créatinine (p=0.008), un diamètre de référence du TCCG < 3.5 mm (p =0.036) et l'utilisation de stents  (p=0.036) and the use of bare metal stents (p=0.036). Independent predictive factors of in-stent restenosis were: use of bare metal stents (p=0.004) and Paclitaxel drug eluting stents (p=0.037). CONCLUSION: Percutaneous coronary intervention is safe and a validated alternative to coronary artery bypass graft for left main coronary artery disease. However, it should be reserved to selected patients and limited to experienced centers.

Anomalous origin of the left coronary artery from the pulmonary artery presenting as dilated cardiomyopathy: a case report.

INTRODUCTION: Anomalous origin of the left coronary artery from the pulmonary artery is a rare congenital anomaly and one of the causes of myocardial ischemia. The usual clinical course is severe left-sided heart failure and mitral valve insufficiency presenting during the first months of life. CASE PRESENTATION: We report the case of a 6-month-old Tunisian girl who presented with dilated cardiomyopathy. Echocardiography suspected anomalous origin of the left coronary artery. The definitive diagnosis of anomalous origin of the left coronary artery from the pulmonary artery was reached by multislice computed tomography and coronary angiography. CONCLUSION: In cases of dilated cardiomyopathy, anomalous origin of the left coronary artery from the pulmonary artery syndrome has to be kept in mind as a surgically correctable cause.

[Left coronaroventricular microfistula]. / Les microfistules coronaro-ventriculaires gauches.

Left coronaroventricular microfistulae is a rare malformation. The authors report 11 cases of microfistulae between coronary arteries and left ventricle diagnosed by coronary arteriographies. These cases include 6 men and 5 women. Patient's mean age was 54.4 years. The symptoms were suggestive of coronary pathology. The ECG showed myocardial ischemia signs in 5 cases. The other patients had a positive exercise-test. Microfistulae originated from the left anterior descending artery were seen in 5 cases, from the right coronary artery in 2 cases, from the circumflex in 1 case and from the lateral artery in 1 case. The microfistulae originated from both left anterior descending artery and right coronary artery were observed in 2 patients. The main mechanism of myocardial ischemia seems to be related to the coronary steal phenomenon. The diagnosis of the microfistulae is based on coronary arteriography with late recorder angiographic images. The treatment is essentially medical. Surgical and transcatheter treatments are exceptional and must be considered in only severe forms with refractory medical treatment.