- Thoracoscopic Sympathectomy for Refractory Electrical Storm After Coronary Artery Bypass Grafting. [Journal Article]
- ATAnn Thorac Surg 2018; 105(3):e99-e101
- We report a patient with refractory electrical storm after coronary artery bypass grafting who was successfully treated with thoracoscopic sympathectomy. Cardiac arrest with ventricular tachycardia o...
We report a patient with refractory electrical storm after coronary artery bypass grafting who was successfully treated with thoracoscopic sympathectomy. Cardiac arrest with ventricular tachycardia occurred on postoperative day 2, and the patient required emergency support with venoarterial extracorporeal membrane oxygenation. Frequent episodes of ventricular tachycardia prevented cardiac recovery and weaning from mechanical circulatory support. A percutaneous left stellate ganglion block initially demonstrated successful prevention of ventricular tachycardia, and definitive sympathetic denervation was achieved by a left thoracoscopic sympathectomy. The patient remained in normal sinus rhythm and gained recovery of baseline ventricular function, permitting successful decannulation and weaning of inotropic support.
- Variation in cardiac markers and electrocardiographic alterations in young calves naturally infected with bovine tropical theileriosis. [Journal Article]
- TATrop Anim Health Prod 2018 Feb 17
- The present study was designed to assess the deleterious effects of bovine tropical theileriosis on the cardiovascular system and the consequent myocardial involvement in young calves. Myocardial eff...
The present study was designed to assess the deleterious effects of bovine tropical theileriosis on the cardiovascular system and the consequent myocardial involvement in young calves. Myocardial effects in parasitic diseases are often neglected. Hemolytic anemia, associated secondary hypoxia, and vasculitis are cardinal features of bovine theileriosis. In the present study, electrocardiogram (ECG) alongside serum cardiac troponin I (cTnI) and creatinine phosphokinase-myocardial band (CPK-MB) concentrations were analyzed in infected, treated, and control groups of young calves. Non-significant alterations were noticed in ECG. However, certain signs like sinus tachycardia, first-degree AV block, atrial premature complex, left atrial hypertrophy, and right atrial hypertrophy were found on consistent basis in infected calves. A significant increase in the serum concentration levels of cTnI and CPK-MB was noticed in infected calves followed by significant fall in both these biomarkers post treatment. cTnI and CPK-MB can definitely be used as myocardial markers in theileriosis-affected animals.
- Right atrium enlargement predicts clinically significant supraventricular arrhythmia in patients with pulmonary arterial hypertension. [Journal Article]
- HLHeart Lung 2018 Feb 14
- CONCLUSIONS: In PAH patients RA enlargement is associated with increased prevalence of SVA. RAai is an independent predictor of hospitalization due to csSVA.
- Atrial overdrive pacing during LBBB tachycardia. What is the mechanism? [Journal Article]
- PCPacing Clin Electrophysiol 2018 Feb 14
- A 35-year old lady was referred for evaluation of recurrent palpitation. During one of the episodes of palpitation a wide QRS tachycardia with left bundle branch block (LBBB) morphology was recorded ...
A 35-year old lady was referred for evaluation of recurrent palpitation. During one of the episodes of palpitation a wide QRS tachycardia with left bundle branch block (LBBB) morphology was recorded and it was terminated with intravenous adenosine. The surface electrocardiogram during sinus rhythm did not show any pre-excitation. Echocardiogram was normal. Patient underwent an electrophysiology study after informed consent. During catheter placement a wide QRS tachycardia with LBBB morphology and left axis deviation (LAD) similar to the clinical tachycardia got induced (Fig:1). Catheters were placed in right atrial free wall, His region, coronary sinus and right ventricular (RV) apex. An atrial overdrive pacing (AOD) was performed during the tachycardia (Fig:2 & 3). What is the response to AOD and what is the mechanism of tachycardia.? This article is protected by copyright. All rights reserved.
- Clinical presentation, management, and postnatal outcomes of fetal tachyarrhythmias: A 10-year single-center experience. [Journal Article]
- APAnn Pediatr Cardiol 2018 Jan-Apr; 11(1):34-39
- CONCLUSIONS: Aggressive TPT using combination of drugs achieves excellent pregnancy and postnatal outcomes in fetuses with tachyarrhythmia. Early diagnosis and prompt referral before hemodynamic decompensation is critical for ensuring optimal outcomes.
- Endo-/Epicardial Catheter Ablation of Atrial Fibrillation: Feasibility, Outcome, and Insights Into Arrhythmia Mechanisms. [Journal Article]
- CACirc Arrhythm Electrophysiol 2018; 11(2):e005748
- CONCLUSIONS: Catheter-based endo-/epicardial mapping and ablation of AF was feasible and safe. Epicardial mapping provided new insights into AF mechanisms. Epicardial ablation increased transmurality of ablation lesions. Clinical outcome in this cohort of complex AF patients was favorable, indicating potential further development of current AF treatment.
- Cough as the sole manifestation of pericardial effusion. [Journal Article]
- BCBMJ Case Rep 2018 Feb 05; 2018
- A 59-year-old woman with paroxysmal atrial fibrillation (AF) presented with severe non-productive cough, malaise, low-grade fever and AF flare-up 3 weeks following pulmonary vein isolation with radio...
A 59-year-old woman with paroxysmal atrial fibrillation (AF) presented with severe non-productive cough, malaise, low-grade fever and AF flare-up 3 weeks following pulmonary vein isolation with radiofrequency catheter ablation. She denied chest pain or dyspnoea. Patient was haemodynamically stable. There was no pulsus paradoxus. Laboratories showed leucocytosis and elevated C-reactive protein. ECG showed sinus tachycardia. CT abdomen and pelvis showed a large pericardial effusion (PE). Shortly after admission, she developed AF with rapid ventricular response, responsive to intravenous amiodarone. Transthoracic echocardiogram revealed 2.4 cm posterior PE without tamponade physiology, non-amenable to pericardiocentesis via sub-xiphoid approach. Patient underwent left thoracoscopic pericardial window with removal of 250 cc bloody fibrinous fluid. Cough improved significantly and she was discharged on oral amiodarone and apixaban. Repeat CT chest after 2 weeks for recurrent cough showed a small PE, treated with oral prednisone for suspected postablation pericarditis, with complete resolution of cough. Amiodarone was stopped without recurrence of AF.
- A simplified approach for evaluating sustained slow pathway conduction for diagnosis and treatment of atrioventricular nodal reentry tachycardia in children and adults. [Journal Article]
- AMAdv Med Sci 2018 Feb 09; 63(2):249-256
- CONCLUSIONS: The PR/RR ratio is a simple tool for slow pathway substrate and AVNRT evaluation. Eliminating PR/RR ratios ≥1 may serve as a surrogate endpoint for slow pathway ablation in children and adults with AVNRT.
- Long-Term Clinical Comparison of Procedural End Points After Pulmonary Vein Isolation in Paroxysmal Atrial Fibrillation: Elimination of Nonpulmonary Vein Triggers Versus Noninducibility. [Journal Article]
- CACirc Arrhythm Electrophysiol 2018; 11(2):e005019
- CONCLUSIONS: Elimination of triggers as an end point of ablation in patients with paroxysmal atrial fibrillation decreased long-term recurrence of atrial tachyarrhythmia compared with a noninducibility approach achieved by additional empirical ablation. The post-PVI trigger test is thus a better end point of ablation for paroxysmal atrial fibrillation.
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- A feasibility study of non-invasive ablation of ventricular tachycardia using high-intensity focused ultrasound. [Journal Article]
- JCJ Cardiovasc Electrophysiol 2018 Feb 12
- CONCLUSIONS: This pilot study suggests that HIFU is potentially useful for non-invasive ablation of targeted, localized myocardial tissues, and it may be potentially applicable for VT ablation, particularly for those with intra-myocardial / epicardial origins. This article is protected by copyright. All rights reserved.