ArticleFrontiers in cardiovascular medicine2026
A retrospective observational study of clinical presentation and management outcomes in patients with paroxysmal supraventricular tachycardia at a tertiary center in Bahrain.
Article in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
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: A retrospective observational study was conducted on 427 adult patients with PSVT (ICD-10: I47.1, confirmed by chart review) between January 2018 and early 2024. Data were extracted from the KHUH HOPE electronic medical records system. Descriptive statistics summarized baseline characteristics; chi-square tests examined categorical associations. Kaplan-Meier analyses for the cardioversion subgroup ( 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.
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