As experience accumulates following the introduction of a new therapeutic procedure, there comes a time when it is profitable to halt activity and critically appraise the value of what has been accomplished. Following such an analysis, ineffective measures are discarded, modifications often suggest themselves, and plans for further development of the method may be formulated. Cervical sympathectomy as a means of alleviating pain of cardiac origin has not stood the test of trial, and in America it has fallen into disuse. The many types of operation employed and the variability of results afford abundant evidence that ablation of any portions of the sympathetic chain in the neck cannot interrupt all of the nervous pathways concerned. Furthermore, the most intense suffering is encountered in patients with coronary disease, and as a rule it is inadvisable to submit such persons to an extensive surgical operation. When discomfort is so great that life
LEVY RL, MOORE RL. PARAVERTEBRAL INJECTIONS OF ALCOHOL FOR THE RELIEF OF CARDIAC PAIN: A REVIEW OF EXPERIENCE TO DATE AND A REPORT OF NINE CASES. Arch Intern Med (Chic). 1931;48(1):146–168. doi:10.1001/archinte.1931.00150010151010
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