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nformation would be useful when we implant an additional stent through a stent-strut. Since the pandemic began in 2020, Remdesivir has been widely used for the treatment of coronavirus disease-2019 (COVID-19). Here, we describe a case of a patient with COVID-19 who developed transient complete atrioventricular (AV) block and bradycardia after initiating treatment with Remdesivir. A 72-year-old male with a history of atrial fibrillation and lung cancer was hospitalized for COVID-19. Electrocardiogram (ECG) on admission demonstrated atrial fibrillation and right bundle branch block. He was started on a course of Dexamethasone and Remdesivir. Within 24 h of starting Remdesivir, he was noted to be in atrial fibrillation with ventricular rates between 30 and 40 b.p.m. On Day 5 of Remdesivir therapy, ECG demonstrated complete AV block. Having completed the Remdesivir regimen, during the next 48 h, he was closely monitored, and the AV block resolved spontaneously. As he remained asymptomatic and had an adequate chronotropic response with activity, pacemaker implantation was not recommended. Despite the widespread use of Remdesivir, there is little known information about its cardiac toxicity. Daily ECGs and close cardiac surveillance of patients who develop severe bradycardia or AV block are essential. Discontinuation of the medication usually results in the resolution of these cardiac disturbances. Despite the widespread use of Remdesivir, there is little known information about its cardiac toxicity. Daily ECGs and close cardiac surveillance of patients who develop severe bradycardia or AV block are essential. Discontinuation of the medication usually results in the resolution of these cardiac disturbances. Cobalamin C (cbl-C) defect is an inherited autosomal recessive disorder that commonly affects the central nervous system of infants. Severe pulmonary hypertension (PH) and diffuse lung lesions are unusual clinical manifestations, especially among adults. A 25-year-old man with hypoxaemia, diffuse lung lesions, and PH, suddenly developed nausea, vomiting, headache, and worsening of dyspnoea. Metabolic screening showed elevated serum levels of methylmalonic acid and homocysteine, and genetic testing revealed gene mutations. He was eventually diagnosed with severe PH secondary to cbl-C defect and was successfully managed with vitamin B12, betaine, L-carnitine, folate, as well as ambrisentan and sildenafil. cbl-C is a rare cause of PH and can present with severe PH and diffuse lung lesions in adults. Given that the condition is treatable, a careful metabolic screening should be considered when a diagnosis of PH is made. cbl-C is a rare cause of PH and can present with severe PH and diffuse lung lesions in adults. Given that the condition is treatable, a careful metabolic screening should be considered when a diagnosis of PH is made. Acquired pulmonary vein stenosis (PVS) is an infrequent complication of atrial fibrillation ablation that is often misdiagnosed due to predominant respiratory symptoms. It can result in pulmonary venous hypertension, with varying presentations, ranging from shortness of breath to haemoptysis. We report two patients with a history of paroxysmal atrial fibrillation treated with radiofrequency ablation and pulmonary vein (PV) isolation, who subsequently developed PVS. Case 1 initially presented with indolent symptoms of shortness of breath and cough. He was initially diagnosed with and treated for pneumonia. In contrast, Case 2 presented with massive haemoptysis, requiring intubation and intensive care unit admission. https://www.selleckchem.com/products/fx11.html Both patients were eventually diagnosed with PVS by computed tomography. They were treated with PV angioplasty and stenting. While previously limited to the congenital heart disease population, PVS is occurring more frequently now in adult patients as a complication of ablation procedures. It is most effectively treated with angioplasty and stent implantation but has a high rate of recurrence. While previously limited to the congenital heart disease population, PVS is occurring more frequently now in adult patients as a complication of ablation procedures. It is most effectively treated with angioplasty and stent implantation but has a high rate of recurrence. Brugada syndrome (BrS) is a genetically heterogeneous channelopathy that may lead to sudden death. We report a novel mutation of the ankyrin-B gene that is probably related to the occurrence of BrS in two brothers. First, we present the case of a 27-year-old male who was admitted to the hospital with acute myocarditis. The patient showed left ventricular dysfunction and was given carvedilol. Six days later, while asymptomatic and afebrile, the patient exhibited an electrocardiogram (ECG) with repolarization 'saddleback' ST changes in V2. A procainamide provocative test was performed with a response for Type 1 Brugada ECG pattern. Genetic testing revealed a novel mutation, c.5418T>A (+/-) (p.His1806Gln), in the ankyrin-B gene encoding. His 34 years old brother had an ECG J point elevation in leads V1 and V2 of 1 mm not fulfilling diagnostic criteria for Brugada ECG pattern. He also experienced arrhythmia-related syncope. Flecainide provocation test changed ECG towards a Type 1 Brugada pattern. A subcutapresentation of BrS ECG. Catheter-based closure has emerged as a less invasive alternative to surgery in high-risk patients with paravalvular leak (PVL) and clinically significant regurgitation with feasibility and efficacy demonstrated in multiple studies. A 72-year-old female with a past history of long-standing rheumatic heart disease underwent mechanical mitral valve replacement in 2008. Ten years later, redo surgery was performed due to a worsening mitral PVL and the leakage was closed by direct pledget-supported sutures, preserving the mechanical valve. She was recently admitted again for haemolytic anaemia and congestive heart failure (New York Heart Association Classes III-IV) due to a recurrent mitral PVL. We report our initial clinical experience using a novel software solution (EchoNavigator -system) for intuitive guidance during a catheter-based transapical mitral PVL closure. Transapical mitral PVL closure with a specifically designed device demonstrated in our case to be a better option than redo surgery. Recently introduced fusion imaging modalities enhanced visualization of soft tissue anatomy and device location improving enormously the results of this challenging intervention.
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