Unlabelled: The aim of this study was to assess the influence of the parameters of the coronary sinus (CS) on the parameters that describe the function of the right ventricle (RV), which were calculated using cardiac computed tomography.
Methods: A CT scan of the heart was performed on 150 patients due to suspicion of coronary artery disease using a Siemens Somatom Force (2 × 192 × 0.6) and a syngo.via workstation. The "CT coronary" and in some cases the generic presets were used to measure the CS ostium in millimeters (mm). The functional measurements of right heart ventricles were examined using the "CT cardiac function" automatic function on a 256 × 256 matrix.
Results: The average diameter of the CS ostium was 16.29 ± 4.37 mm. In the group with RV impairment, it was 16.56 ± 4.76, whereas in the group with normal values of the RV, it was 15.98 ± 3.88 mm, = 0.4199. The average angle of the entrance of the CS into the right atrium was 107.25° ± 9.68°. In the group with an RV impairment, it was 105.91° ± 9.22°, while in the patients with normal values of the RV, it was 108.82° ± 10.04°; = 0.0682. A multiple regression showed that end systolic volume ( = 0.0017) and stroke volume ( = 0.0144) are important predictors of the CS ostium.
Conclusions: Some relationships were found between the CS and the selected parameters that describe the function of the RV. This may suggest a role for the CS as a right ventricular buffer, which could potentially be treated as a marker of an RV impairment.
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http://dx.doi.org/10.3390/ijerph19042217 | DOI Listing |
Eur Heart J Case Rep
January 2025
Department of Cardiology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-Ku, Yokohama city, Kanagawa 236-0004, Japan.
Background: Coronary sinus (CS) lead placement in persistent left superior vena cava (PLSVC) cases is challenging because of the poor backup force of the guiding catheter within the enlarged CS. Active fixation Quadripolar leads (Attain Stability™ Quad 4798, Medtronic) can expand choice to CS branches with limited access; however, no cases of anchoring to the main body of the CS have been published to date.
Case Summary: We describe a case of cardiac resynchronization therapy pacemaker upgrade in a 79-year-old female who developed pacing-induced cardiomyopathy after pacemaker implantation via the right superior vena cava (SVC) for atrioventricular block eight years ago wherein PLSVC was revealed during the procedure.
Sleep Breath
January 2025
Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, John Paul II Hospital, Prądnicka 80, Kraków, 31-202, Poland.
Background: Obstructive sleep apnoea (OSA) may lead to heart rhythm abnormalities including bradycardia. Our aim was to ascertain clinical and echocardiographic parameters in patients with OSA in whom severe bradycardia was detected in an outpatient setting, as well as to evaluate the efficacy of CPAP therapy on heart rate normalization at the early stages of treatment.
Methods: Fifteen patients mild, moderate or severe OSA and concomitant bradycardia were enrolled.
J Cardiovasc Electrophysiol
January 2025
Hôpital Cardiologique du Haut Léveque, CHU de Bordeaux, L'Institut de RYthmologie et modelisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France.
Background: Achieving a durable mitral line block using radiofrequency as a part of an anatomical approach for ablation in patients with persistent atrial fibrillation or for treating peri-mitral flutter has always been challenging due to the complex anatomy of the mitral isthmus. Epicardial ablation via the coronary sinus and the vein of Marshall has been proposed to help create durable lesions. Recently, a novel lattice-tip catheter using pulsed field ablation has shown promising results for creating mitral lines, despite limited data.
View Article and Find Full Text PDFFront Pediatr
January 2025
Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education (MOE), West China Institute of Women and Children's Health, Key Laboratory of Development and Diseases of Women and Children of Sichuan Province, Department of Pediatrics, Department of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.
Background: Cardiovascular involvement is a rare but severe complication of Epstein-Barr virus (EBV) infections. Patients with chronic active EBV (CAEBV) are at increased risk of developing cardiovascular complications and have a poor prognosis. Here, we report the rare case of a pediatric patient with CAEBV and EBV- hemophagocytic lymphohistiocytosis (HLH) complicated with a giant coronary artery aneurysm (CAA) and thrombosis, a giant Valsalva sinus aneurysm, and ascending aorta dilation seven years after the disease onset.
View Article and Find Full Text PDFFront Cardiovasc Med
January 2025
Department of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research Hospital, Erzurum, Turkey.
Background: Our aim in this case was to remove the defective ventricular lead and the ruptured coronary sinus lead.
Methods: Entering through the right femoral vein and removing the coronary sinus lead with a pigtail catheter.
Results: In our attempt to extract the coronary sinus lead, it fractured.
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