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Q Wave in the Inferior Leads: There Is More Than Scar
Harilaos Bogossian1,2, Ilias Ninios1, Gerrit Frommeyer3
1Markische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Ludenscheid, Ludenscheid, Germany.
Insights
Significant Q waves on an electrocardiogram (ECG) often indicate heart pathology. However, circumscribed hypertrophy can mimic these findings, presenting a crucial differential diagnosis for atypical chest pain.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Q waves on a 12-lead electrocardiogram (ECG) typically suggest underlying cardiac pathology like myocardial infarction, scarring, or accessory pathways.
- Differential diagnosis for Q waves can be challenging, particularly in cases of atypical chest pain.
Observation:
- Circumscribed hypertrophy, a less common cause, can also induce significant Q waves.
- This entity is particularly relevant in younger patients presenting with chest pain.
Findings:
- The study highlights circumscribed hypertrophy as a potential mimic of pathological Q waves on ECG.
- Accurate identification is crucial for appropriate patient management.
Implications:
- Considering circumscribed hypertrophy can prevent misdiagnosis of cardiac ischemia or infarction.
- This awareness may help avoid unnecessary invasive procedures in patients with atypical chest pain.
Abstract:
Q waves can regularly be observed in the 12-lead electrocardiogram either due to heart axis underlying pathology such as subacute myocardial infarction, myocardial scar, or accessory pathways. Rarely, other entities such as circumscribed hypertrophy can induce significant Q wave and represent an important differential diagnosis especially in younger patients. In the setting of atypical chest pain determination of the correct diagnosis can be challenging. Therefore, circumscribed hypertrophy should be taken into account to avoid unnecessary invasive procedures.
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