Angina pectoris with normal coronary angiograms

Area of Science:

• Cardiology
• Gastroenterology
• Pain Perception

Background:

• A significant minority of patients undergoing cardiac catheterization for angina pectoris present with normal-appearing coronary arteries.
• This presentation suggests non-coronary causes for chest pain, necessitating further investigation beyond standard coronary angiography.

Purpose of the Study:

• To review proposed etiologies for chest pain in patients with angiographically normal coronary arteries.
• To discuss the evidence supporting or refuting these etiologies.
• To outline a management strategy for this patient group.

Main Methods:

• Review of existing literature on chest pain with normal coronary arteries.
• Analysis of proposed causes including psychiatric illness, esophageal disorders, and abnormal visceral pain perception.
• Evaluation of diagnostic and therapeutic approaches.

Main Results:

• Multiple potential causes for chest pain exist, including esophageal motility disorders, acid reflux, and stress-induced coronary flow limitations.
• Abnormal visceral pain perception is a potential unifying abnormality in this patient population.
• Evidence for and against each proposed etiology is considered.

Conclusions:

• Chest pain in patients with normal coronary arteries is multifactorial.
• Abnormal visceral pain perception warrants consideration as a primary mechanism.
• A structured approach to diagnosis and management is crucial for effective patient care.