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Cardiac Resynchronization Therapy - Crossref

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Last Updated: 10 September 2022

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A Hybrid Procedure Combining Mini-Thoracotomy with Interventional Endocardial Lead Implantation for Cardiac Resynchronization Therapy in Patients with Chronic Congestive Heart Failure: A Report of Four Cases

Background: We discuss the use and success of transthoracic electrode implantation for epicardial left ventricular pacing in cardiac resynchronization therapy for patients with chronic heart failure. Methods: We examined four patients with chronic congestive heart failure for whom the implantation of endocardial electrodes was forbidden. In all four patients, the epicardial electrodes were implanted with success. None of the patients had electrode fractures or surgical wound infections, and the pacing threshold and electrode impedance were normal. Phrenic nerve stimulation was present in one instance due to the electrode's poor placement position. The sacral nerve stimulation sign disappeared when the electrode was tilted slightly inward and upward, and no other abnormalities were found. In CRT, the implantation of a left ventricular epicardial electrode through a left-sided small incision is safe, convenient, and cost-effective.

Source link: https://doi.org/10.1532/hsf.2807


The MADIT-ICD benefit score helps to select implantable cardioverter-defibrillator candidates in cardiac resynchronization therapy

Abstract Aims The aim of this report is to determine whether the MADIT-ICD benefit score will determine who gets the most from the addition of implantable cardioverter-defibrillator to cardiac resynchronization therapy in real-world patients with heart failure with reduced ejection percentages and compare this to selection according to a multidisciplinary expert center approach. Methods and findings Consecutive HFrEF patients who underwent a CRT for a guideline indication at a tertiary care hospital between October 2008 and September 2016 were retrospectively assessed. For non-arrhythmic mortality, the predictive power for ICD benefit was similar between an expert multidisciplinary decision and the MADIT-ICD benefit score: 0. 69 vs. 0. 60 for VT/VF and 0. 60 for non-arrhythmic mortality. Conclusions The MADIT-ICD benefit score will reveal who benefits most from CRT-D and is comparable to multidisciplinary assessment in a CRT specialist center.

Source link: https://doi.org/10.1093/europace/euac039


Tricuspid regurgitation after cardiac resynchronization therapy: evolution and prognostic significance

Abstract Aims Tricuspid regurgitation is common in patients with heart failure and is associated with poorer outcomes in patients with heart failure. This report looked at the effects of cardiac synchronization therapy on TR risk and long-term outcomes. Patients were divided into four groups: no or mild TR without progression; no or mild TR with transition to significant TR; and significant TR without change without change. Significant TR with change at follow-up was not present in multivariable analysis, no or mild TR moving to significant TR without change [hazard ratio 1. 785; P 0. 001] and significant TR without change were independently linked to all-cause mortality, with no or slight TR rising to significant TR without change, although significant TR without change was not found in a follow-up, although significant TR with change was not based on multivariable analysis. Conclusion In a substantial number of patients, significant TR after CRT has been observed, indicating the potential use of CRT for patients with HF having high TR.

Source link: https://doi.org/10.1093/europace/euac034


Cardiac resynchronization therapy in heart failure patients by using left bundle branch pacing

Background: Left bundle branch pacing is gaining on its own as an easy way to achieve cardiac resynchronization therapy and improve heart health. Left ventricular ejection fraction 50% and left bundle branch block – The aim of our study was to investigate the possibility and effectiveness of LBBP in heart failure patients with left ventricular ejection fraction 50% and left bundle branch block. Methods All patients with complete LBBB and LVEF 50 percent were retrospectively included in the study from April 2018 to April 2021, which also included CRT via LBBP implantation. After the LBBP's operation for a month, a significant reduction in QRS duration was observed. When compared to implantation values, LBB capture threshold and R-wave amplitude remained stable at 12-month follow-up. Conclusions The current research found that LBBP was feasible with a high success implantation rate, responsive to correct LBBB, and with increased left ventricular architecture and function with a low and stable pacing threshold.

Source link: https://doi.org/10.3389/fcvm.2022.990016


Prediction of Cardiac Resynchronization Therapy Response Using a Lead Placement Score Derived From 4-Dimensional Computed Tomography

Background: Cardiac resynchronization therapy is an extremely safe treatment for patients with heart failure; however, 30% of patients do not respond to the therapy. We wanted to develop patient-specific left ventricle maps of lead placement scores that highlight target pacing lead sites for achieving a higher rate of CRT response. Each subject was given a linear combination of the support vector machine feature weights and the subject's own feature vector, which was an LPS map over the left ventricle. Subjects with an LPS-u2264Q 1 had a posttest likelihood of responding by 14%, while those with an LPS-u2265 Q3 had a posttest likelihood of responding by 90%. Subjects with Q 1 LPS Q 3 had a posttest likelihood of responding in a manner that was virtually unchanged from the pretest likelihood. Responders with an LPS threshold were identified as 87 percent of the receiver operating characteristic curve, which was just over the curve.

Source link: https://doi.org/10.1161/circimaging.122.014165


Evaluation of interventricular delay during cardiac resynchronization therapy in patients with quadripolar systems in long-term postoperative follow-up

To determine the relationship between changes in interventricular delay and response to cardiac resynchronization therapy during a 24-month postoperative period in patients with quadripolar left ventricular leads, the author investigates the connection. The patient population was divided into two subgroups as follows: one with the highest IVD is the one without this condition, and the other without. In the subgroup with IVDmax, the shortening of IVD in the postoperative period is at each considered period relative to the second subgroup, and in general, there is a more noticeable decline in IVD than the previous 24 months. Patients with IVDmax also show a significant decrease in ESV and, consequently, a larger increase in EF at the same time, 3, 6, 12 months after surgery.

Source link: https://doi.org/10.15829/1560-4071-2022-5121

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions