Schrittmacher- und ICD-Elektrokardiogramme
Alternating QRS morphologies: what is the diagnosis?
A 73-year-old female with a history of complete heart block, coronary artery disease, and preserved left ventricular systolic function (ejection fraction 48 %) had had a dual-chamber permanent pacemaker (Sensia SEDR01, Medtronic, MN, USA) implanted 4 years previously. The patient presented to the cardiac rhythm and device clinic for regular follow-up.
What is the diagnosis of the electrocardiogram (ECG) (Fig. 1)?
The final publication is available at link.springer.com
Gul, E.E., Baranchuk, A., Brüggemann, B. et al. Herzschr Elektrophys (2019) 30: 11. https://doi.org/10.1007/s00399-019-0610-6