Symptomatic swallowing-induced paroxysmal supraventricular tachycardia

Area of Science:

• Cardiology
• Gastroenterology
• Neuroscience

Background:

• Supraventricular tachycardia (SVT) is a heart rhythm disorder.
• Understanding triggers for SVT is crucial for patient management.
• Vagovagal reflexes play a role in various physiological processes.

Observation:

• A 55-year-old woman presented with palpitations specifically during food or drink ingestion.
• Surface, esophageal, and dynamic electrocardiographic recordings were utilized for evaluation.
• No underlying gastrointestinal or cardiac abnormalities were identified.

Findings:

• Swallowing consistently induced supraventricular tachycardia (SVT) in the patient.
• Review of nine prior cases supports this unusual clinical syndrome.
• Vagovagal reflexes are implicated as the likely cause (pathogenesis).

Implications:

• This condition, though rare, requires recognition by clinicians.
• Identifying swallowing as a trigger can aid in diagnosis and management.
• Further research into vagovagal reflex modulation may offer therapeutic strategies.