Publications by authors named "Tan Chen Wu"

Background: Surgical resection of locally advanced or borderline pancreatic ductal adenocarcinoma is a recognized procedure with curative intent performed in specialized oncology centers. Postoperative dysautonomia such as gastroparesis, mild hypotension, and diarrhea are common in elderly patients undergoing pancreaticoduodenectomy. A distinctive feature of our case, is the severing of an important sympathetic chain by the surgical procedure, leading to recurrent severe neurogenic shock.

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Aims: Atrial-esophageal fistula following ablation procedures for atrial fibrillation (AF) remains a major concern. There is no standardized approach to minimize the risk and morbidity of this serious complication. The objective of this study was to present the 7-year experience of systematic endoscopic surveillance of esophageal injury after AF catheter ablation.

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Article Synopsis
  • Catheter ablation for parahisian accessory pathways (PHAP) is challenging due to their close proximity to the heart's normal conduction system, with cryoablation showing a better safety profile but higher recurrence rates than radiofrequency ablation (RFCA).
  • This study involved 30 patients and compared the effectiveness of RFCA and cryoablation, finding similar acute success rates (93% for RFCA vs. 87% for CRYO) and no significant differences in short-term or long-term recurrence rates.
  • The researchers concluded that both RFCA and CRYO have comparable efficacy and safety profiles when performed by experienced electrophysiologists, with no cases of permanent AV block reported in either method.
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Introduction: The echocardiographic diagnosis criteria for arrhythmogenic right ventricular cardiomyopathy (ARVC) are highly specific but sensitivity is low, especially in the early stages of the disease. The role of echocardiographic strain in ARVC has not been fully elucidated, although prior studies suggest that it can improve the detection of subtle functional abnormalities. The purposes of the study were to determine whether these advanced measures of right ventricular (RV) dysfunction on echocardiogram, including RV strain, increase diagnostic value for ARVC disease detection and to evaluate the association of echocardiographic parameters with arrhythmic outcomes.

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Background: Functional bradycardia is a challenging condition that affects a healthy population. Ganglionated plexus ablation has emerged as a therapeutic alternative to avoid a pacemaker.

Objectives: The purpose of this study is to evaluate long-term effects of anatomically guided cardiac denervation.

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Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC), a rare inherited disease, causes ventricular tachycardia, sudden cardiac death, and heart failure (HF). We investigated ARVC clinical features, genetic findings, natural history, and the occurrence of life-threatening arrhythmic events (LTAEs), HF death, or heart transplantation (HF-death/HTx) to identify risk factors.

Methods: The clinical course of 111 consecutive patients with definite ARVC, predictors of LTAE, HF-death/HTx, and combined events were analyzed in the entire cohort and in a subgroup of 40 patients without sustained ventricular arrhythmia before diagnosis.

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Background: Cardiac magnetic resonance (CMR) allowed to precisely identify the substrate in scar-related ventricular tachycardia (VT). New software has been developed to define the 3D scar and corridors to help VT ablation by integrating the scar and electroanatomical mapping (EAM). The objective of this study is to evaluate the results of VT ablation aided by the integration of EAM and CMR software processed scar.

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Cardioneural ablation is a novel treatment for functional bradycardia. However, the risk of acute complications is still unknown. The aim of this case report is to describe acute occlusion of the sinus node artery after cardiac denervation procedures in 2 patients and to encourage measures to prevent it, such as evaluating the aortic angulation in older patients before the procedure and by monitoring signs of sinus failure during ablation in patients with electroanatomical maps showing a constricted aspect of the right atrium.

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Background: In the treatment of atrial fibrillation (AF), the most frequently sustained arrhythmia, with catheter ablation (CA) or electrical cardioversion (ECV), the periprocedural period is one of the most critical phases. Currently, the use of new direct action oral anticoagulants (DOAC) is increasingly frequent; however, in the real world, there are still few data on studies on the thrombus incidence in the left atrium (TrLA) or dense spontaneous contrast (DSC) on transesophageal echocardiogram (TEE).

Objective: To evaluate the prevalence of events and association with risk factors in patients using DOACs.

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Objective: Mutations in the ) gene are commonly associated with cardiac manifestations, such as dilated cardiomyopathy (DCM) and conduction system disease. However, the overall spectrum and penetrance of rare variants are unknown. The present study described the presence of in patients with "lone atrial fibrillation (AF)" as their sole clinical presentation.

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Since December 2019 we have observed the rapid advance of the severe acute respiratory syndrome caused by the new coronavirus (SARS-CoV-2). The impact of the clinical course of a respiratory infection is little known in patients with hereditary arrhythmias, due to the low prevalence of these diseases. Patients who present with infectious conditions may exacerbate hidden or well-controlled primary arrhythmias, due to several factors, such as fever, electrolyte disturbances, drug interactions, adrenergic stress and, eventually, the septic patient's own myocardial damage.

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Article Synopsis
  • Atrial tachycardia (AT) ablation near the His-Bundle is risky due to potential AV block, leading researchers to explore catheter positioning on the non-coronary cusp (NCC) as a safer alternative for treatment.
  • This study reviewed ten patients with confirmed para-Hisian focal AT, finding that RF delivery at NCC effectively interrupted tachycardia without causing complications or recurrence during a follow-up period of 30 months.
  • The results suggest that using the NCC for catheter-based treatment of para-Hisian AT is both safe and effective, providing a promising strategy for managing this complex type of arrhythmia.
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Background: Epicardial mapping and ablation are frequently necessary to eliminate ventricular tachycardia (VT) in patients with Chagas disease. Nonetheless, there are no randomized controlled trials demonstrating the role of this strategy.

Objective: We conducted this randomized controlled trial to evaluate the efficacy and safety of combined epicardial ablation in patients with Chagas disease.

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Background Brugada syndrome and long-QT syndrome may account for at least one third of unexplained sudden cardiac deaths. Dental care in patients with cardiac channelopathies is challenging because of the potential risk of life-threatening events. We hypothesized that the use of local dental anesthesia with lidocaine with and without epinephrine is safe and does not result in life-threatening arrhythmias in patients with channelopathies.

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Background: Carotid sinus hypersensitivity (CSH) is a frequent finding in the evaluation of syncope. However, its significance in the clinical setting is still dubious. A new criterion was proposed by Solari et al.

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Aim: Acute and subacute cardiotoxicity are characterized by prolongation of the corrected QT interval (QTc) and other measures derived from the QTc interval, such as QTc dispersion (QTdc) and transmural dispersion of repolarization (DTpTe). Although anthracyclines prolong the QTc interval, it is unclear whether breast cancer patients who undergo the ACT chemotherapy regimen of anthracycline (doxorubicin: A), cyclophosphamide (C) and taxane (T) may present with QTc, QTdc and DTpTe prolongation.

Methods: Twenty-three consecutive patients with breast cancer were followed prospectively during ACT chemotherapy and were analyzed according to their QT measurements.

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Background: Ventricular and supraventricular premature complexes (PC) are frequent and usually symptomatic. According to a previous study, magnesium pidolate (MgP) administration to symptomatic patients can improve the PC density and symptoms.

Objective: To assess the late follow-up of that clinical intervention in patients treated with MgP or placebo.

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Objective: To evaluate the influences of circadian variations on tilt-table testing (TTT) results by comparing the positivity rate of the test performed during the morning with that of the test performed in the afternoon and to evaluate the reproducibility of the results in different periods of the day.

Methods: One hundred twenty-three patients with recurrent unexplained syncope or near-syncope referred for TTT were randomized into 2 groups. In group I, 68 patients, TTT was performed first in the afternoon and then in the morning.

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