Because the T2-3 or T3-4 sympathetic ganglia are involved in direct sympathetic innervation of the heart, sympathectomy at this level may alter baroreflex control of heart rate. The purpose of our study was to examine the influence of ETS on baroreflex responses to pressor and depressor stimuli under small-dose sevoflurane anesthesia.
ETS significantly altered baroreflex in both pressor and depressor tests in all patients. Baroreflex was completely suppressed in 1 of 19 patients in the pressor test and in 9 of 21 patients in the depressor test. We conclude that baroreflex responses are suppressed in patients who receive ETS.
Kawamata, Yurie T. MD *; Kawamata, Tomoyuki MD +; Omote, Keiichi MD +; Homma, Eiji MD *; Hanzawa, Tatsuo MD *; Kaneko, Toshifumi MD ++; Namiki, Akiyoshi MD +
Institution
Departments of *Anesthesiology and
++Surgery, Nippon Telegraph and Telephone East Japan Sapporo Hospital, Sapporo, Japan; and
+Department of Anesthesiology, Sapporo Medical University School of Medicine, Sapporo, Japan
Title
Endoscopic Thoracic Sympathectomy Suppresses Baroreflex Control of Heart Rate in Patients with Essential Hyperhidrosis.[Miscellaneous]
Source
Anesthesia & Analgesia. 98(1):37-39, January 2004.