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Neural Mechanisms of Cardiac Pain
Author Biography
Introduction
Anterolateral System
Somatic vs. Visceral Nociceptive Processing
Angina Pectoris
Sympathetic Sensory Innervation
Currently selected section: Referred Pain
Vagal Sensory Innervation
Other Ascending Pathways
Central Sensitization
Thalamus and Cerebral Cortex
Neurophysiology of Angina Pectorsis
Nausea and Vomiting

Dyspnea
Summary

 

Chapter 25:Neural Mechanisms of Cardiac Pain: Referred Pain
        

Question 7.1

A patient with intractable angina pectoris has surgery to remove sympathetic ganglia to eliminate the sympathetic afferent fibers that mediate the pain. The patient had modest (but not total) pain relief at first, but the pain eventually returned. How can this happen?

Selection AThe surgical procedure did not remove enough sympathetic afferent fibers.
Selection BThis patient did not really have anginal pain.
Selection C The vagus nerve may mediate anginal pain, and vagal fibers were not cut during the surgery.
Selection DSympathetic afferent fibers really do not mediate anginal pain.

 

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