Key result
A dual-chamber pacemaker was successfully implanted using active fixation leads in a patient with dextrocardia and sick sinus syndrome, leading to symptom improvement without recurrence at 3 months.
Why the study?
Cases of a combination of dextrocardia and sick sinus syndrome are rare.
Case Report (n=1)
No
Active fixation leads can be successfully and safely used for dual-chamber pacemaker implantation in patients with mirror-image dextrocardia and sick sinus syndrome to achieve optimal sensing and pacing thresholds.
May support active fixation leads in dextrocardia; hypothesis-generating and should not yet alter practice.
Dextrocardia is a congenital abnormal position of the heart in which the main part of the heart is in the right chest, and the long axis of the heart points to the lower right. Cases of a combination of dextrocardia and sick sinus syndrome are rare. A 65-year-old female patient was admitted to hospital with palpitations and dizziness for 1 week. Mirror-image dextrocardia and sick sinus syndrome were diagnosed by an electrocardiogram, echocardiography, Holter monitoring, and X-rays. Finally, we successfully implanted a dual-chamber pacemaker into the patient. The patient had an uneventful recovery and was discharged when her symptoms had greatly improved 1 week later. When dextrocardia is present, using active fixation leads in the atrial and ventricular leads is easier for finding the pacing position with optimal sensing and pacing thresholds, and they reduce the incidence of falling off.
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Luo et al. (2022) conducted a case report in Dextrocardia and sick sinus syndrome (n=1). Dual-chamber pacemaker implantation with active fixation leads was evaluated on Successful implantation and symptom improvement. A dual-chamber pacemaker was successfully implanted using active fixation leads in a patient with dextrocardia and sick sinus syndrome, leading to symptom improvement without recurrence at 3 months.
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