Key result
Right parasternal S-ICD lead placement alters R-to-T wave ratios vs left placement in single ventricle anatomy.
Why the study?
The S-ICD is a useful option for patients with a single ventricle where transvenous leads are contraindicated, but optimal lead placement for QRS and T wave discrimination is unclear.
Does right parasternal lead placement improve discrimination between QRS and T waves compared to left parasternal placement for S-ICD in a patient with a single ventricle?
Case Report (n=1)
Does right parasternal lead placement improve discrimination between QRS and T waves compared to left parasternal placement for S-ICD in a patient with a single ventricle?
Right parasternal lead placement for S-ICD may improve QRS and T wave discrimination in patients with congenital heart disease such as a single ventricle.
Answers are grounded in this paper and cite their sources.
May support right parasternal S-ICD positioning for R/T discrimination in single ventricle; hypothesis-generating and requires prospective validation.
The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a useful option for patients with a single ventricle (SV) in which transvenous leads are contraindicated because of intracardiac shunts. We report a case in which a right parasternal lead placement was indicated for an S-ICD in a resuscitated patient with an SV. There were significant changes in the magnitude of R to T waves ratio in the right compared to the left parasternal lead position. Screening in the right parasternal position is effective for selecting appropriate patients with congenital heart disease for S-ICD implantations.
No takes yet. Share an insight, caveat, or question.
Nishiyama et al. (2017) conducted a case report in Single ventricle with contraindicated transvenous leads (n=1). Right parasternal lead placement for S-ICD vs. Left parasternal lead position was evaluated on Magnitude of R to T waves ratio. Right parasternal lead placement for S-ICD in a patient with a single ventricle showed significant changes in the magnitude of R to T waves ratio compared to the left parasternal position.
Synapse has enriched 10 related papers. Consider them for comparative context: