Possible Involvement of Coronary Microvascular Dysfunction in Painful Left Bundle Branch Block
Naoya Inoue1,2, Yumiko Joko1,2, Shuji Morikawa1,2
1Department of Cardiology, Chutoen General Medical Center, Kakegawa, Shizuoka, Japan.
Insights
Painful left bundle branch block syndrome can occur, but its cause is unknown. This study investigated coronary microvascular dysfunction in a patient with this condition, using guide wire-based thermodilution to understand chest pain.
Area of Science:
- Cardiology
- Cardiac Electrophysiology
- Vascular Biology
Background:
- Left bundle branch block (LBBB) is associated with chest pain, but the underlying mechanisms are not fully understood.
- Previous reports suggest a link between LBBB and chest pain syndromes, yet the pathophysiology remains elusive.
- Investigating the role of coronary microvascular dysfunction in LBBB-associated chest pain is crucial for clinical understanding.
Abstract:
Cases of painful left bundle branch block syndrome have been reported; however, the pathophysiology of chest pain remains unclear. Here, we report a patient with left bundle branch block and chest pain. We evaluated coronary microvascular dysfunction using guide wire-based thermodilution. (Level of Difficulty: Intermediate.).
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