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- Kvorning, N, et al.
(author)
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Acupuncture facilitates neuromuscular and oculomotor responses to skin incision with no influence on auditory evoked potentials under sevoflurane anaesthesia.
- 2003
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In: Acta Anaesthesiologica Scandinavica. - : Wiley. - 0001-5172. ; 47:9, s. 1073-1078
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Journal article (peer-reviewed)abstract
- Background: More sevoflurane was recently found to be required to prevent movement in response to surgical incision in anaesthetized patients subjected to electro-acupuncture (EA) than to sham procedures. The present study was designed to compare differences in movement, dilatation of the pupils, divergence of the eye axes and activity of auditory evoked potentials (AEPs) between patients given and those not given EA under standardized sevoflurane anaesthesia. Methods: Neuromuscular, oculomotor and AEP responses to skin incision were assessed with and without a bilateral 2-Hz burst EA in patients under steady-state anaesthesia maintained with 1.8% of sevoflurane. Forty-five healthy patients, scheduled for laparoscopic sterilization, were randomized for EA (n = 22) or sham (n = 23) procedures between induction of anaesthesia and start of surgery. Middle latency AEP activity was recorded and interpreted by the A-line ARX (autoregression with exogenous input) index (AAI). Results: More acupuncture than sham patients were found to respond to skin incision with movement of the neck or limbs (77% vs. 43%; P = 0.021), dilatation of the pupils (77% vs. 39%; P = 0.001) and divergence of the eye axes (72% vs. 39%; P = 0.023), whereas there was no difference in AAI response. Conclusion: Electro-acupuncture facilitates physiological responses to nociceptive stimulation under sevoflurane anaesthesia. Differences in neuromuscular and oculomotor responses between acupuncture and sham patients under general anaesthesia are probably not associated with interaction between EA and the depth of anaesthesia, as AEP activity was similar in the two groups.
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| 2. |
- Kvorning, N, et al.
(author)
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Acupuncture fails to reduce but increases anaesthetic gas required to prevent movement in response to surgical incision.
- 2003
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In: Acta Anaesthesiologica Scandinavica. - : Wiley. - 0001-5172. ; 47:7, s. 818-822
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Journal article (peer-reviewed)abstract
- Background: Acupuncture is used for clinical pain relief but has not been evaluated under clinical anaesthesia. This study was designed to compare movement in response to surgical incision in anaesthetized patients subjected to electro-acupuncture (EA) or sham procedures. Our hypothesis was that EA stimulation would reduce the requirements for anaesthetic gas. Methods: Forty-six healthy women, scheduled for laparoscopic sterilization at a Swedish county hospital, were randomized to have either the electro-acupuncture (n = 23) or sham (n = 23) procedure between the induction of general anaesthesia and the start of surgery. The minimal alveolar concentration (MAC) of sevoflurane required to prevent neck or major limb movements in response to surgical incision was determined in each group of patients. Results: The MAC for sevoflurane was found to be higher in the group given acupuncture than in the control group (2.1 ± 0.3% vs. 1.8 ± 0.4%; P = 0.008). Conclusion: Electro-acupuncture given during general anaesthesia with sevoflurane failed to reduce but instead increased the clinical need for anaesthetic gas, possibly by reducing the anaesthetic effect of sevoflurane and/or by facilitating nociceptive transmission and/or reflex activity.
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| 3. |
- Kvorning, N, et al.
(author)
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Acupuncture relieves pelvic and low-back pain in late pregnancy
- 2004
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In: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 1600-0412 .- 0001-6349. ; 83:3, s. 246-250
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Journal article (peer-reviewed)abstract
- Background The study was designed to evaluate the analgesic effect and possible adverse effects of acupuncture for pelvic and low-back pain during the last trimester of pregnancy. Methods Following individual informed consent, 72 pregnant women reporting pelvic or low-back pain were randomized during pregnancy weeks 24-37 to an acupuncture group (n = 37) or to a control group (n = 35) at three maternity wards in southern Sweden. Traditional acupuncture points and local tender points (TP) were chosen according to individual pain patterns and stimulated once or twice a week until delivery or complete recovery in acupuncture patients. Control patients were given no sham stimulation. Throughout the study period each patient made weekly visual analog scale (VAS) evaluations of maximal and minimal pain intensity as well as three-point assessments of pain intensity during various activities. Results During the study period, VAS scorings of pain intensity decreased over time in 60% of patients in the acupuncture group and in 14% of those in the control group (p < 0.01). At the end of the study period, 43% of the acupuncture patients were less bothered than initially by pain during activity compared with 9% of control patients (p < 0.01). No serious adverse effects of acupuncture were found in the patients, and there were no adverse effects at all in the infants. Conclusion Acupuncture relieves low-back and pelvic pain without serious adverse effects in late pregnancy.
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