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January 1, 2018Annals of Pediatric CardiologyOpen Access

A 5-year-old boy with long QT syndrome and macroscopic T-wave alternans continued to experience loss of consciousness despite maximal beta-blocker therapy, necessitating left thoracoscopic cervical sympathectomy.

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Population

1 5-year-old boy with long QT syndrome and macroscopic T-wave alternans presenting with repeated episodes of…

Design

Case_report

Key result

A 5-year-old boy with long QT syndrome and macroscopic T-wave alternans continued to experience loss of consciousness despite maximal beta-blocker therapy, necessitating left thoracoscopic cervical sympathectomy.

Authors

SGSiddharthNarayan GadageRuby Hall Clinic

Discussion

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Overview

May support sympathectomy in refractory pediatric LQTS with T-wave alternans; leaves open need for prospective validation.

Study Design

Type

Case Report (n=1)

Structured PICO

P
Population
A 5-year-old boy with long QT syndrome and macroscopic T wave alternans who presented with repeated episodes of loss of consciousness.
I
Intervention
Oral propranolol escalated to 3 mg/kg/dose every 6 hours over 7 days, followed by left thoracoscopic cervical sympathectomy.

This case report highlights a rare presentation of macroscopic T-wave alternans in a pediatric patient with long QT syndrome who was refractory to beta-blocker therapy and required sympathectomy.

Cite This Study

SiddharthNarayan Gadage (2018) conducted a case report in Long QT syndrome with macroscopic T wave alternans (n=1). Propranolol followed by left thoracoscopic cervical sympathectomy was evaluated on Episodes of loss of consciousness. A 5-year-old boy with long QT syndrome and macroscopic T-wave alternans continued to experience loss of consciousness despite maximal beta-blocker therapy, necessitating left thoracoscopic cervical sympathectomy.

synapsesocial.com/papers/6a884804c0c64b7dddeb42ffhttps://doi.org/10.4103/apc.apc_112_17
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Occult T Wave Alternans in Long QT Syndrome1996 · 64 citations
  2. 2The QRS and T wave alternans — a new ECG pattern in Long QT syndrome2024
  3. 3Combined QRS complex and T wave alternans — a new electrocardiographic phenomenon in long QT syndrome: a clinical observation2024 · 1 citations
  4. 4T Wave Alternans in Idiopathic Long‐QT Syndrome: Insight from Body Surface Mapping1996 · 10 citations
  5. 5ECG features of microvolt T-wave alternans in coronary artery disease and long QT syndrome patients1998 · 47 citations