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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Haff disease electrocardiogram

Introduction

Overview

Overview

Haff disease may result in cardiac arrhythmias due to hyperkalemia and hypocalcemia, as a result of rhabdomyolysis. Therefore, it is essential to monitor the patient with an ECG.

Electrocardiogram

Electrocardiogram

Since Haff disease causes rhabdomyolysis, it is essential to monitor the patient for cardiac arrhythmias due to hyperkalemia or hypocalcemia.[1]

ECG features of hyperkalemia include:[2]

  • Small or absent P wave
  • Prolonged PR interval
  • Augmented R wave
  • Wide QRS complex
  • Peaked T waves
ECG changes seen in hyperkalemia

ECG features of hypocalcemia include:[3]

  • Prolonged QTc interval (risk factor for Torsades de pointes)
ECG changes seen in hypocalcemia
References

References

  1. ↑ Keltz E, Khan FY, Mann G (2013). “Rhabdomyolysis. The role of diagnostic and prognostic factors”. Muscles Ligaments Tendons J. 3 (4): 303–12. PMC 3940504. PMID 24596694.
  2. ↑ “StatPearls”. 2022. PMID 29261936.
  3. ↑ “StatPearls”. 2022. PMID 28613662.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: M. Hassan, M.B.B.S