Conclusion
Left isomerism is an important etiology of Sinus node dysfunction in young patients and should be evaluated thoroughly. Diagnosis of left isomerism in sick sinus syndrome will affect the management of patients with regards to the mode and access of pacemaker implantation.
Acknowledgment: None
Source of Funding: None
Patient Consent: The patient provided written consent for the publication of this case report and its accompanying images, and a copy of this consent is available upon request for review by the Editor-in-Chief of this journal, to ensure compliance with ethical standards.
Conflict of Interest: None