We present a case study article demonstrating successful implementation of ultrasound guided extra cardiac vagus nerve stimulation during cardioneuroablation. To our knowledge it is first published description of this technique, as most ECVS are done in the internal jugular vein bulb area. This method allows for reduction of fluoroscopy time, and most importantly reproducible vagus nerve capture especially after full bi-nodal (sinus and atrioventricular) cardioneuroablation when stimulation of vagus nerve may not give any effect in the heart. This article includes a case study with "dual component" atrioventricular block, where functional component is cured with cardioneuroablation, but structural (PR elongation) remains after procedure.
Background: Safe discontinuation of pacemaker therapy for vagally mediated bradycardia is a dilemma. The aim of the study was to present the outcomes of a proposed diagnostic and therapeutic process aimed at discontinuing or not restoring pacemaker therapy (PPM) in patients with vagally mediated bradycardia. Methods: The study group consisted of two subgroups of patients with suspected vagally mediated bradycardia who were considered to have PPM discontinued or not to restore their PPM if cardioneuroablation (CNA) would successfully treat their bradycardia. A group of 3 patients had just their pacemaker explanted but reimplantation was suggested, and 17 patients had preexisting pacemakers implanted. An invasive electrophysiology study was performed. If EPS was negative, extracardiac vagal nerve stimulation (ECVS) was performed. Then, patients with positive ECVS received CNA. Patients with an implanted pacemaker had it programmed to pace at the lowest possible rate. After the observational period and control EPS including ECVS, redo-CNA was performed if pauses were induced. The decision to explant the pacemaker was obtained based on shared decision making (SDM). RESULTS: After initial clinical and electrophysiological evaluation, 17 patients were deemed eligible for CNA (which was then performed). During the observational period after the initial CNA, all 17 patients were clinically asymptomatic. The subsequent invasive evaluation with ECVS resulted in pause induction in seven (41%) patients, and these patients underwent redo-CNA. Then, SDM resulted in the discontinuation of pacemaker therapy or a decision to not perform pacemaker reimplantation in all the patients after CAN. The pacemaker was explanted in 12 patients post-CNA, while in 2 patients explantation was postponed. During a median follow-up of 18 (IQR: 8–22) months, recurrent syncope did not occur in the CNA recipients. Conclusions: Pacemaker therapy in patients with vagally mediated bradycardia could be discontinued safely after CNA.
Background/Objectives: Patients with inappropriate sinus tachycardia (IST) and postural orthostatic tachycardia syndrome (POTS) exhibit complex clinical profiles due to autonomic dysfunction. While sinus node sparing (SNS) hybrid ablation is emerging as a promising therapy, there are no established guidelines worldwide for post-procedure patient management and care is mainly based on telemonitoring. In contrast, our hybrid cardiac rehabilitation (HCR) program integrates inpatient care and home-based telerehabilitation. We aim to evaluate the implementation of the HCR program, patient acceptance and adherence, and the effectiveness of the Malmö POTS scoring system in monitoring disease progression and rehabilitation outcomes. Methods: Patients underwent a personalized HCR program after SNS. The program included early mobilization, psychological support, respiratory therapy, and structured exercise. Clinical outcomes were assessed using symptom burden (Malmö POTS score), ECG parameters, exercise duration, perceived exertion, and rehabilitation adherence. Results: All patients completed the inpatient phase, and 87% completed the home-based phase. In the early postoperative period, pericarditis, anemia, and benign rhythm disturbances were mild and self-limiting. The Malmö POTS score decreased from 65.3 to 25.7. Lower perceived exertion early in the program correlated with clinical improvement. At the 2-month follow-up, 81% of patients no longer met the clinical criteria for IST/POTS without the use of medications. The program was evaluated as safe, feasible, and well-tolerated, with high patient satisfaction. Conclusions: A well-organized hybrid cardiac rehabilitation program after SNS is feasible, safe, and well-tolerated in IST/POTS patients. The Malmö POTS score may support outcome monitoring. The integration of individualized training and telemedicine represents a promising development for patients post-SNS ablation. While this study demonstrates feasibility and potential benefits, further controlled studies are needed to evaluate its impact on long-term recovery and symptom control.