A retrospective observational study of clinical presentation and management outcomes in patients with paroxysmal supraventricular tachycardia at a tertiary center in Bahrain

Objectives: This study aimed to evaluate the clinical characteristics, symptom presentation, and management outcomes of patients diagnosed with paroxysmal supraventricular tachycardia (PSVT) at King Hamad University Hospital (KHUH), a tertiary care center. It examined the influence of demographics, comorbidities, and sex on treatment responses to pharmacologic and non-pharmacologic interventions, including cardioversion. Methods: = 18) are presented as exploratory and descriptive only. Results: Females comprised 56.9% of the cohort (mean age 52.8 ± 15.2 years). Palpitations were the most common symptom (94.4%). Of 219 patients who received adenosine, 177 (80.8%) achieved cardioversion with the first dose, 25 (11.4%) with the second, and 17 (7.8%) with the third. Vagal maneuvers showed reduced success in patients with structural heart disease and diabetes mellitus. Electrical cardioversion was required in 18 patients (4.2%). Pacemaker implantation was documented in 3 patients (0.7%) for co-existing conduction disease, not as a PSVT treatment. Comorbidities significantly influenced outcomes: hypertension was associated with favorable vagal maneuver response, while heart failure and ischemic heart disease correlated with poor response across all modalities. Conclusion: PSVT generally responds well to first-line treatments. However, individualized strategies are warranted for patients with structural heart disease or significant comorbidities. Observed sex-based and age-related response differences are descriptive and require multivariable validation.