keyword
https://read.qxmd.com/read/36708317/pre-procedural-imaging-and-atrial-tachycardia-ablation-in-a-patient-with-complex-congenital-heart-disease
#21
Oğuzhan Ekrem Turan, Reşit Yiğit Yilancioğlu, Umut İnevi, Emin Evren Özcan
Atrial tachycardias (AT) are common cardiac arrhythmia disorder for congenital heart disease (CHD). The anatomic substrate that surgical suture lines, scar tissue, or prosthetic material may cause pre-existing atrial conduction abnormalities which leads to the underlying mechanism of reentrant ATs. Radiofrequency Catheter ablation (RFCA) is used in the treatment of atrial tachycardia in CHD patients. However venous system abnormalities may complicate the procedure. We report that ablation of a case with atrial tachycardia with challenging anatomy (persistent left superior vena cava draining into the left atrium, coronary sinus agenesis, inferior vena cava (IVC) agenesis, azygos system drained to the superior vena cava, and repaired ventricular septal defect)...
January 28, 2023: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36690018/demonstration-of-the-discrepancy-between-at-wave-morphology-on-12-lead-ecg-and-at-mechanism-in-scar-related-at
#22
JOURNAL ARTICLE
Masateru Takigawa, Claire A Martin, Tasuku Yamamoto, Yosuke Nakatani, Josselin Duchateau, Thomas Pambrun, Nicolas Derval, Frederic Sacher, Meleze Hocini, Takuro Nishimura, Susumu Tao, Shinsuke Miyazaki, Masahiko Goya, Michel Haïssaguerre, Tetsuo Sasano, Pierre Jaïs
The 12-lead ECG is a fundamental modality to help determine the mechanism and the localization of atrial tachycardias (ATs). Although macroreentrant atrial tachycardias (ATs) and focal ATs typically show F-waves and discrete P-waves respectively on the 12-lead ECG, this is not universally the case in scar-related ATs.1,2 We present three cases clearly showing the discrepancy between the AT morphology on the 12-lead ECG and the AT-mechanism. This article is protected by copyright. All rights reserved.
January 23, 2023: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36685152/the-removal-excision-sterilization-and-quarantine-resq-method-is-a-feasible-alternative-treatment-for-cardiac-implantable-electronic-device-infections
#23
JOURNAL ARTICLE
Feng-Ching Liao, Chih-Yin Chien, Shu-I Lin, Chun-Che Huang, Ming-Feng Tsai, Wei-Ru Chiou, Po-Lin Lin, Jen-Yuan Kuo, Cheng-Ting Tsai, Ying-Hsiang Lee
BACKGROUND: Current guidelines recommend that all infected cardiac implantable electronic devices (CIEDs) should be removed. However, financial or anatomical concerns can lead to management of infection with simple debridement, as opposed to complete removal. In this observational study, we report the outcomes of our modified procedure for this real-world dilemma. METHODS AND RESULTS: The Quarantine (RESQ) method is characterized as follows: the removal (R) of all non-essential foreign materials, including old sutures and leads; the excision (E) of all non-viable, chronically inflamed, granulation, or scar tissue; the sterilization (S) of the remaining generator; and the quarantine (Q) of a new pocket in the sub-muscular layer for reimplantation...
January 2023: Acta Cardiologica Sinica
https://read.qxmd.com/read/36643710/total-parenteral-nutrition-pleural-effusion-after-peripherally-inserted-central-venous-catheter-insertion-despite-fluoroscopic-confirmation
#24
Michael Yang, Angelena Lopez
Peripherally inserted central catheters are frequently used for durable central venous access for nutrition. Depending on the medical and surgical history, there are times when a person's vasculature has become scarred or stenotic due to multiple previous vascular devices, catheters, or pacemaker/defibrillator leads, that causes placement of a peripherally inserted central catheter challenging. Choosing the correct catheter and approach must be weighed against invasiveness of the procedure as unforeseen complications can arise...
2023: SAGE Open Medical Case Reports
https://read.qxmd.com/read/36561585/endobronchial-ultrasound-diagnosis-of-a-malignant-superior-vena-cava-tumor-thrombus-extending-into-the-right-atrium-an-unusual-cause-of-recurrent-syncope
#25
Larissa Check, Ariba Naz, Caleb Scott, Richard Duff
The superior vena cava (SVC) is mainly responsible for the return of blood flow from the head, upper limbs, and neck into the right atrium. The large vein can be subject to extrinsic tumor compression and invasive intraluminal tumors-metastatic and mediastinal tumors that can lead to complete or partial occlusion. SVC occlusion can also result from chronic inflammation or scarring of the vessel iatrogenically by pacemaker wires or venous access ports used for chemotherapy, long-term antibiotics, or hemodialysis...
November 2022: Curēus
https://read.qxmd.com/read/36516139/cardiovascular-imaging-in-conduction-system-pacing-what-does-the-clinician-need
#26
REVIEW
Yang Ye, Yuan Lv, Yankai Mao, Lin Li, Xueying Chen, Rujie Zheng, Xiaofeng Hou, Chan Yu, Captur Gabriella, Guo-Sheng Fu
Permanent pacemakers are used for symptomatic bradycardia and biventricular pacing (BVP)-cardiac resynchronization therapy (BVP-CRT) is established for heart failure (HF) patients traditionally. According to guidelines, patients' selection for CRT is based on QRS duration (QRSd) and morphology by surface electrocardiogram (ECG). Cardiovascular imaging techniques evaluate cardiac structure and function as well as identify pathophysiological substrate changes including the presence of scar. Cardiovascular imaging helps by improving the selection of candidates, guiding left ventricular (LV) lead placement, and optimization devices during the follow-up...
June 2023: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36515737/cosmetic-considerations-for-placement-of-deep-brain-stimulation-pulse-generator-the-submammary-subfascial-approach
#27
JOURNAL ARTICLE
Jason Yuen, Khaled Alameddine, Eugene S Bah, Kendall H Lee, Basel A Sharaf
INTRODUCTION: Deep brain stimulation (DBS) is an effective treatment for a number of debilitating neurological diseases. However, the placement of an implantable pulse generator (IPG) can lead to significant cosmetic concerns for some patients. METHODS: We present a subfascial technique of DBS IPG implantation under the breast using a more concealed scar location. The technique is illustrated in a female patient who favored a more aesthetic placement of the DBS to treat essential tremor...
March 2023: Acta Neurochirurgica
https://read.qxmd.com/read/36448731/scar-formation-following-temperature-guided-atrial-fibrillation-ablation-an-in-vivo-assessment
#28
JOURNAL ARTICLE
Martin Braun, Leonard Bergau, Thomas Fink, Vanessa Sciacca, Mustapha El Hamriti, Philipp Sommer, Christian Sohns
No abstract text is available yet for this article.
November 30, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36427357/successful-cardiac-resynchronization-therapy-by-left-bundle-branch-area-pacing-through-a-chronically-occluded-left-subclavian-system-with-limited-vascular-access-preventing-coronary-sinus-lead-implant
#29
Xiaoke Liu
BACKGROUND: Conventional cardiac resynchronization therapy (CRT) involves implantation of a coronary sinus pacing lead through a delivery sheath, which typically requires a large venous access through a safe sheath of 9 French or greater in size. In patients who have very limited access due to scar tissue from previous implants or critical venous stenosis/closure, such large caliber access may not be available. CASE REPORT: We here report a case of CRT procedure in an 84-year-old male with a previous history of ischemic dilated cardiomyopathy (ejection fraction 40%) who was dependent on right ventricular pacing with worsening heart failure symptoms...
November 25, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36356298/reverse-structural-left-atrial-remodeling-and-atrial-tachycardia-in-patients-with-repeat-ablation-for-atrial-fibrillation
#30
JOURNAL ARTICLE
Naotaka Hashiguchi, Cheng-Hung Chiang, Laura Rottner, Bruno Reißmann, Andreas Rillig, Tilman Maurer, Christine Lemes, Karl-Heinz Kuck, Feifan Ouyang, Shibu Mathew
BACKGROUND: Catheter ablation has been evolved to a cornerstone in the therapy of atrial fibrillation (AF), however atrial tachycardias (AT) after AF ablation are still an important issue. Besides the electrical recurrence of atrial tachyarrhythmia after ablation, left atrial (LA) remodeling has received attention as a consequence of AF. OBJECTIVE: The aim of this study is to evaluate predictors for AT recurrence and LA remodeling in patients with repeat AF ablation procedures...
November 10, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36196004/voltage-mapping-and-pulmonary-vein-isolation-in-master-athletes-with-atrial-fibrillation
#31
JOURNAL ARTICLE
Brian Liu, Eric Pagan, Nicholas Beccarino, David Chang, Eric Dulmovits, Stuart Beldner
BACKGROUND: Master athletes encompass a wide range of exercise enthusiasts. At the extreme, there is an increased risk of atrial fibrillation (AF). Therapies aimed at rate or rhythm control are often limited given unfavorable side effects. Although studies suggest an increase in left atrial (LA) fibrosis in this population, minimal electrophysiologic data exist regarding the LA voltage mapping and the efficacy of AF ablation with pulmonary vein isolation (PVI). METHODS: In a retrospective single-center study, we reviewed AF ablations (pulmonary vein isolation and assessment/ablation of non-pulmonary vein triggers) performed in extreme master athletes with AF...
October 4, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/35841613/why-is-the-patient-still-symptomatic-after-myectomy-for-hcm
#32
JOURNAL ARTICLE
Ramil Goel, Iain Thompson, William M Miles
We describe the case of a young female patient with hypertrophic cardiomyopathy (HCM) with a dual chamber implantable cardioverter defibrillator (ICD), and complete heart block from a prior septal ablation procedure. Due to persistent left ventricular outflow tract (LVOT) obstruction and symptoms, she underwent surgical myectomy. Her exertional symptoms continued despite improved LVOT flow parameters. A comprehensive evaluation, including ICD interrogation, helped arrive at the correct diagnosis and treatment plan...
July 16, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/35781833/-cardiac-magnetic-resonance-imaging-and-the-myocardium-differentiation-between-vital-and-nonvital-tissue
#33
REVIEW
Mhd Nawar Alachkar, Thomas Mischke, Christian Mahnkopf
Cardiac magnetic resonance (cMR), a well-established imaging tool, is indispensable in the diagnosis and management of cardiovascular disease. Given its high spatial resolution and ability to characterize tissue, cMR represents the gold standard in determining myocardial viability. Gadolinium-based contrast-enhanced cMR can accurately identify myocardial scars and fibrosis in the ventricle and the atria, and differentiate it from normal myocardium. Gadolinium is an extracellular molecule which has been shown to be safe and beneficial in magnetic resonance imaging (MRI)...
July 4, 2022: Herzschrittmachertherapie & Elektrophysiologie
https://read.qxmd.com/read/35598811/pacemaker-lead-related-macroreentrant-atrial-tachycardia
#34
Frederico Scuotto, Maria Cecilia Xavier Souto, Claudio Cirenza, Angelo Amato Vincenzo De Paola
Macroreentrant atrial circuits are frequently associated with scarring. Previous reports have shown the possible development of scar tissue that is adjacent to pacemaker (PM) leads. However, reports of PM lead-related reentrant tachycardia are scarce. We report the case of a 63-year-old woman who presented with macroreentrant atrial tachycardia (MAT), related to the atrial trajectory of an old single-lead ventricular PM, that was successfully treated with radiofrequency ablation after a conventional electrophysiological study ruled out isthmus-dependent atrial flutter and provided sufficient data to confirm this diagnosis...
July 2022: Indian Pacing and Electrophysiology Journal
https://read.qxmd.com/read/35439350/the-mechanistic-and-prognostic-implications-of-heart-rate-variability-analysis-in-patients-with-cirrhosis
#35
REVIEW
Noor-Ul-Hoda Abid, Ali R Mani
Chronic liver damage leads to scarring of the liver tissue and ultimately a systemic illness known as cirrhosis. Patients with cirrhosis exhibit multi-organ dysfunction and high mortality. Reduced heart rate variability (HRV) is a hallmark of cirrhosis, reflecting a state of defective cardiovascular control and physiological network disruption. Several lines of evidence have revealed that decreased HRV holds prognostic information and can predict survival of patients independent of the severity of liver disease...
April 2022: Physiological Reports
https://read.qxmd.com/read/35430753/catheter-ablation-of-ventricular-tachycardia-in-dilated-phase-hypertrophic-cardiomyopathy-substrate-characterization-and-ablation-outcome
#36
JOURNAL ARTICLE
Qasim J Naeemah, Yuki Komatsu, Akihiko Nogami, Yukio Sekiguchi, Miyako Igarashi, Hiro Yamasaki, Yasutoshi Shinoda, Kazutaka Aonuma, Masaki Ieda
INTRODUCTION: Catheter ablation is a therapeutic option to suppress ventricular tachycardia (VT) in the setting of dilated-phase hypertrophic cardiomyopathy (DHCM). However, the characteristics of the arrhythmogenic substrate and the ablation outcome are not fully illustrated. METHOD: A total of 23 ablation procedures for drug-refractory sustained monomorphic VTs in 13 DHCM patients (60 ± 11 years, one female, the left ventricular [LV] ejection fraction 39 ± 9%, the LV mass index 156 ± 39 g/m2 ) were performed...
April 16, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/35383970/selvester-qrs-score-predicts-improvement-of-lvef-in-atrial-fibrillation-patients-with-systolic-heart-failure
#37
JOURNAL ARTICLE
Yoshihiro Nomura, Masahide Harada, Yuji Motoike, Asuka Nishimura, Masayuki Koshikawa, Takehiro Ito, Yoshihiro Sobue, Fumihiko Kitagawa, Eiichi Watanabe, Yukio Ozaki, Hideo Izawa
BACKGROUND: Left-ventricular systolic dysfunction (LVSD) comorbid with atrial fibrillation is reversible, but recovery is limited in a subset of patients. The Selvester QRS (S-QRS) score is an electrocardiogram-based assessment that reportedly reflects myocardial scar/damage. We evaluated the predictability of S-QRS score for the recovery of left-ventricular ejection fraction (LVEF) in persistent AF (PeAF) patients with LVSD undergoing catheter ablation (CA). METHOD: CA was performed in 51 PeAF patients with reduced LVEF (<40%); S-QRS scores were measured after restoration of sinus rhythm...
April 5, 2022: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/35363331/effect-of-implantable-cardioverter-defibrillator-implantation-on-frontal-qrs-t-angle
#38
JOURNAL ARTICLE
F Başyiğit, K G Balcı
OBJECTIVE: The frontal plane QRS-T [f(QRS-T)] angle refers to the mean difference between the depolarization and repolarization vectors and can easily be measured by digital electrocardiography (ECG). Pacemaker leads can cause fibrosis of the myocardium adjacent to the electrode-tissue interface. We aimed to evaluate whether a right ventricular implantable cardioverter-defibrillator (ICD) lead modifies the f(QRS-T) angle in patients with systolic heart failure (HF). PATIENTS AND METHODS: We prospectively analyzed 101 systolic HF patients who underwent single-lead ICD implantation...
March 2022: European Review for Medical and Pharmacological Sciences
https://read.qxmd.com/read/34820857/late-gadolinium-enhancement-mri-determines-definite-lesion-formation-most-accurately-at-three-months-post-ablation-compared-to-later-time-points
#39
JOURNAL ARTICLE
Till F Althoff, Paz Garre, Gala Caixal, Rosario Perea, Susanna Prat, Jose Maria Tolosana, Eduard Guasch, Ivo Roca-Luque, Elena Arbelo, Marta Sitges, Josep Brugada, Lluís Mont
AIMS: Neither the long-term development of ablation lesions nor the capability of late gadolinium enhancement (LGE) -MRI to detect ablation-induced fibrosis at late stages of scar formation have been defined. We sought to assess the development of atrial ablation lesions over time using LGE-MRI and invasive electroanatomical mapping (EAM). METHODS AND RESULTS: Ablation lesions and total atrial fibrosis were assessed in serial LGE-MRI scans 3 months and >12 months post pulmonary vein (PV) isolation...
November 25, 2021: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/34667594/covid-19-bbibp-corv-vaccine-and-transient-heart-block-a-phenomenon-by-chance-or-a-possible-correlation-a-case-report
#40
Pirbhat Shams, Jamshed Ali, Sheema Saadia, Aamir Hameed Khan, Fateh Ali Tipoo Sultan, Javed Tai
Importance: Bradyarrhythmia during COVID19 illness carries prognostic significance. Electrophysiological side effects of COVID19 vaccine remain largely unknown. It is imperative to report nature of cardiovascular side effects of the vaccine. Case presentation: An 80 years-old-man presented with complains of dizziness, trepidation and shortness of breath following his first shot of COVID-19 BBIBP-CorV (Sino-pharm). ECG on arrival showed 2:1 atrioventricular block with an underlying old left bundle branch block...
October 15, 2021: Annals of Medicine and Surgery
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