scholarly journals B-PO02-040 CORRELATION BETWEEN AV SYNCHRONY AND DEVICE COLLECTED AM-VP SEQUENCE COUNTER IN A LEADLESS VENTRICULAR PACING USING ACCELEROMETER BASED ATRIAL SENSING

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S111-S112
Author(s):  
Christophe Garweg ◽  
Larry A. Chinitz ◽  
Surinder Kaur Khelae ◽  
Joseph Yat Sun Chan ◽  
Philippe Ritter ◽  
...  
Keyword(s):  
Ventricular Pacing ◽  
Sequence Counter ◽  
Av Synchrony ◽  
Atrial Sensing

scholarly journals A new leadless pacemaker with atrioventricular synchronous pacing replacing a still working VVI leadless pacemaker: a case report

2021 ◽  
Author(s):  
Massimo Moltrasio ◽  
Rita Sicuso ◽  
Fabrizio Tundo ◽  
Claudio Tondo
Keyword(s):  
Pacemaker Implantation ◽  
Good Alternative ◽  
Functional Class ◽  
Ventricular Pacing ◽  
Short Term ◽  
Jude Medical ◽  
Leadless Pacemaker ◽  
Atrial Sensing ◽  
Asynchronous Pacing

Abstract Background A new intracardiac leadless pacemaker (ILP) has been developed to ensure atrioventricular synchrony during ventricular pacing. Recent studies have shown feasibility and safety of accelerometer-based atrial sensing and an improvement in atrioventricular synchrony among patients with atrioventricular block implanted with the Micra AV ILP (Medtronic Inc, Minneapolis, Minnesota, US). However, no data exists about the benefits of a VDD ILP in patients wearing a still working VVI Nanostim ILP (St Jude Medical, St Paul, Minnesota, US). We describe the feasibility of the procedure and the absence of device-related adverse events in the short-term follow-up. Case summary We present the case of a 72-year-old man implanted with a VVI ILP (Nanostim, St Jude Medical, St Paul, MN) on May 2014, who has developed symptomatic high percentage of VVI asynchronous pacing and was treated with an upgrade to synchronous AV PM ILP—Micra AV (Medtronic Inc, Minneapolis, Minnesota, US), which has improved symptoms and functional class. Discussion ILPs represent the best current option for patients requiring pacemaker implantation who are at high risk of infection and bleeding. Our case shows that the new AV synchronous ILP is a good alternative to VVI ILP in patients with sinus rhythm and a strong need for ventricular pacing.

Atrial Sensing and AV Synchrony in Single Lead VDD Pacemakers: A Prospective Comparison to DDD Devices with Bipolar Atrial Leads

1999 ◽  
Vol 10 (4) ◽  
pp. 513-520 ◽  
Author(s):  
UWE K.H. WIEGAND ◽  
FRANK BODE ◽  
REGINA SCHNEIDER ◽  
GUNNAR TAUBERT ◽  
AXEL BRANDES ◽  
...  
Keyword(s):  
Prospective Comparison ◽  
Av Synchrony ◽  
Atrial Sensing

scholarly journals ATRIAL LEAD LOCATION PLAYS AN IMPORTANT ROLE TO AVOID UNNECESSARY VENTRICULAR PACING NOT ONLY DURING ATRIAL PACING BUT ALSO DURING ATRIAL SENSING

2013 ◽  
Vol 61 (10) ◽  
pp. E333
Author(s):  
Chikashi Suga ◽  
Taishi Hirahara ◽  
Yoshitaka Sugawara ◽  
Jun Nakajima ◽  
Junya Ako ◽  
...  
Keyword(s):  
Atrial Pacing ◽  
Ventricular Pacing ◽  
Lead Location ◽  
Atrial Sensing

scholarly journals A Real-world Experience of Atrioventricular Synchronous Pacing with Leadless Ventricular Pacemakers

2021 ◽  
Author(s):  
Gurukripa Kowlgi ◽  
Andrew Tseng ◽  
Nathan Tempel ◽  
Mark Henrich ◽  
Kalpathi Venkatachalam ◽  
...  
Keyword(s):  
Real World ◽  
Medical Records ◽  
Demographic Data ◽  
Active Device ◽  
Leadless Pacemaker ◽  
Echocardiographic Parameters ◽  
Av Synchrony ◽  
Clinical Worsening ◽  
Atrial Sensing

Aims: The MicraTM transcatheter pacing system (TPS) (Medtronic) is the only leadless pacemaker that promotes atrioventricular (AV) synchrony via accelerometer-based atrial sensing. Data regarding the real-world experience with this novel system are currently lacking. We sought to characterize patients undergoing MicraTM -AV implants, describe percentage AV synchrony achieved, and analyze the causes for suboptimal AV synchrony. Methods: In this retrospective cohort study, electronic medical records from 56 consecutive patients undergoing MicraTM -AV implants at the Mayo Clinic sites in Minnesota, Florida, and Arizona with a minimum follow-up of 3 months were reviewed. Demographic data, comorbidities, echocardiographic data, and clinical outcomes were compared among patients with and without atrial synchronous-ventricular pacing (AsVP) ≥70%. Results: Fifty-six percent of patients achieved AsVP ≥70%. Patients with adequate AsVP had smaller body mass indices, a lower proportion of congestive heart failure and pulmonary hypertension. Echocardiographic parameters and procedural characteristics were similar across the two groups. Active device troubleshooting was associated with higher AsVP. The likely reasons for low AsVP were persistent atrial arrhythmias, small A4-wave amplitude, and inadequate device reprogramming. Importantly, in patients with low AsVP, subjective clinical worsening was not noted during follow-up. Conclusion: With the increasing popularity of leadless PM, it is paramount for device implanting teams to be familiar with common predictors of AV synchrony and troubleshooting with MicraTM -AV devices.

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