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The use of epidural dexmedetomidine decreases the anaesthetic requirements and improved postoperative pain. Dexmedetomidine is a potent and highly selective a2-adrenoceptor agonist and has sympatholytic effect. Power spectral analysis of heart rate variability(HRV) is a useful tool to assess cardiac autonomic activity. We investigated whether preemptive epidural dexmedetomidine can develop hemodynamic change and it could be identify patients by HRV.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| dexmedetomidine | Experimental |
| |
| normal saline | Placebo Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| preemptive dexmedetomidine epidural bolus injection(1.5 mcg/kg) | Drug | Patients in the pre-emptive groups recived a dose of 1.5㎍/kg dexmedetomidine dissolved into normal saline 10cc before the induction of |
| Measure | Description | Time Frame |
|---|---|---|
| Heart rate variability analysis | Heart rate variability analysis was performed according to the Task Force recommendations. Frequency domain analysis was based on fast Fourier transformation. Power spectrum densities were calculated for low frequencies (LF: 0.04-0.15 Hz) and high frequencies (HF: 0.15-0.4 Hz) informalized units, defined as the LF or HF proportional part of the total power. Baseline and 30min after the injection of the study drug. | 5min perioids after fluid resuscitation. |
| Measure | Description | Time Frame |
|---|---|---|
| Epidural injection | And secondary data collection was done at 30 min after the epidural injection of the study drug. All of the HRV analysis was done before anaesthesia induction. | at 30 min after the epidural injection of the study drug |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Anesthesiology and Pain Medicine, and Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea | Seoul | Seoul | 120-752 | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 21712865 | Background | Bajwa SJ, Bajwa SK, Kaur J, Singh G, Arora V, Gupta S, Kulshrestha A, Singh A, Parmar S, Singh A, Goraya S. Dexmedetomidine and clonidine in epidural anaesthesia: A comparative evaluation. Indian J Anaesth. 2011 Mar;55(2):116-21. doi: 10.4103/0019-5049.79883. | |
| 21058941 | Background | Chatzimichali A, Zoumprouli A, Metaxari M, Apostolakis I, Daras T, Tzanakis N, Askitopoulou H. Heart rate variability may identify patients who will develop severe bradycardia during spinal anaesthesia. Acta Anaesthesiol Scand. 2011 Feb;55(2):234-41. doi: 10.1111/j.1399-6576.2010.02339.x. Epub 2010 Nov 8. |
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| normal saline | Drug | patients in the control groups received the equivalent volume of normal saline. |
|
| 16508402 | Background | Hanss R, Bein B, Weseloh H, Bauer M, Cavus E, Steinfath M, Scholz J, Tonner PH. Heart rate variability predicts severe hypotension after spinal anesthesia. Anesthesiology. 2006 Mar;104(3):537-45. doi: 10.1097/00000542-200603000-00022. |
| 15213737 | Background | Penttila J, Helminen A, Anttila M, Hinkka S, Scheinin H. Cardiovascular and parasympathetic effects of dexmedetomidine in healthy subjects. Can J Physiol Pharmacol. 2004 May;82(5):359-62. doi: 10.1139/y04-028. |
| 19468643 | Background | Schnaider TB, Vieira AM, Brandao AC, Lobo MV. [Intraoperative analgesic effect of epidural ketamine, clonidine or dexmedetomidine for upper abdominal surgery.]. Rev Bras Anestesiol. 2005 Oct;55(5):525-31. doi: 10.1590/s0034-70942005000500007. Portuguese. |
| ID | Term |
|---|---|
| D013274 | Stomach Neoplasms |
| ID | Term |
|---|---|
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D004066 | Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D013272 | Stomach Diseases |
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| ID | Term |
|---|---|
| D000077330 | Saline Solution |
| ID | Term |
|---|---|
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |
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