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Permanent Link: In the News: “electric” acupuncture for depression?

Posted Jun 06 2009 12:00am

I didn’t know they can electrify the acupuncture needles! Interesting study, but who takes tricyclic antidepressants these days?

from Psychiatric Times. Vol. 26 No. 6
Role of Acupuncture in the Treatment of Depression

Benefits and Limitations of Adjunctive Treatment and Monotherapy

Pavel Jalynytchev, Lic Ac and Valentina Jalynytchev, MD

Dr Pavel Jalynytchev is a licensed acupuncturist at South Natick Wellness Clinic in Natick, Mass. Dr Valentina Jalynytchev is at Newton-Wellesley Hospital in Newton, Mass. They report no conflicts to disclose regarding the subject matter.


Acupuncture is being integrated into Western medicine, particularly for treatment of pain, nausea, asthma, and neurological conditions.1 Although the exact mechanism of action for acupuncture is unknown, it is associated with an increase in the level of neurobiologically active substances, such as endorphins and enkephalins.2 There are also data indicating that acupuncture induces the release of norepinephrine, serotonin, and dopamine.3-5

ADVERSE EFFECTS

Acupuncture is well tolerated compared with tricyclic antidepressant medications.6-9 Adverse effects are mild and transient and include tiredness, drowsiness, exacerbation of primary symptoms, and itching in the area of acupuncture.10 Complications such as pneumothorax, infection, cardiac conditions, and spinal cord injury are extremely rare.10

AVAILABLE DATA

The number of studies of Western acupuncture in the treatment of depression and conditions associated with depression is limited.10 Even fewer reports provide objective data to support efficacy (eg, neurotransmitter) level change, imaging studies, and electroencephalographic alterations. Only 7 randomized comparative studies have been published, even though the first attempts to compare acupuncture with conventional treatments for depression began in the 1970s.

Kurland11 presented case reports of 3 females with severe mood disorders who were treated with electroconvulsive therapy (ECT) and electroacupuncture therapy (EAT). EAT is a form of acupuncture in which 1 or more pairs of needles are stimulated by applying small electrical currents. All 3 patients had severe depression and had not responded to multiple trials of different psychotropic medications and psychotherapies. ECT reduced depressive symptoms but was associated with profound memory loss, confusion, and disorientation. Acupuncture administered with EAT resulted in significant remission of depression and was better tolerated by all 3 patients. The authors emphasized that EAT should not be a substitute for antidepressant or antipsychotic medications or ECT. EAT alone is less effective than ECT.

Although the exact mechanism of action of ECT and EAT is still unknown, Chang12 hypothesized that the antidepressant effects of both were associated with a change in activity of serotonin and norepinephrine. In addition, he stated that EAT “might be safer than ECT.”12

Later, Fink13 disagreed with Chang, pointing out that the therapeutic effect of ECT was related to seizure activity.

Acupuncture and antidepressants

In the early 1970s, H. L. Wen, a neurosurgeon from Hong Kong, learned that acupuncture may significantly reduce drug withdrawal symptoms. In 1977, Shuaib and Haq14 made one of the first attempts to evaluate the effectiveness of Wen’s technique of acupuncture on psychosomatic symptoms in patients with neuroses secondary to pharmacological treatment. Participants experienced a reduction in tension, restlessness, sadness, headache, cephalic paresthesia, and loss of appetite during the study. However, obsessional symptoms were unchanged. The authors viewed acupuncture as a safe and potentially effective method of treating depression.

Several studies have compared acupuncture with antidepressants (mainly tricyclics) in the treatment of depression. In a controlled trial, 20 patients were treated with acupuncture 6 times per week, and 21 patients were treated with 150 to 300 mg/d of amitriptyline (control group).15 Both treatments lasted 6 weeks. No significant difference in effect (P > .05) was registered; symptoms of depression improved in both groups. However, change in anxiety somatization was significant in the acupuncture group (P < .01) compared with the control group.

Luo and associates6 compared the effects of EAT and amitriptyline on patients with depression. Results showed that EAT had a more evident therapeutic effect on anxiety somatization and cognitive process disturbance than amitriptyline (P < .05). EAT also appeared to be more effective for reactive depression than amitriptyline. Adverse effects from EAT were significantly lower than from amitriptyline (P < .001). Biochemical tests showed a significant norepinephrine plasma level change after EAT, which suggests that the therapeutic effect of EAT was due to the modulation of norepinephrine metabolism. EAT had a preferable adverse-effect profile. In terms of efficacy of EAT in treatment of depression, results of this study are promising.

Both studies demonstrated comparable efficacy between acupuncture and amitriptyline. However, because they were conducted in China, where the therapeutic outcome of acupuncture is highly expected, the placebo effect cannot be ruled out.

No significant difference between acupuncture and fluoxetine was found in 2 trials that included patients with poststroke depression.7,16 Both studies indicated that the patients did not tolerate fluoxetine as well as acupuncture. These efficacy findings were supported by Mukaino and associates,17 who systematically reviewed randomized controlled trials and suggested that the therapeutic effect of EAT might not be significantly different from conventional antidepressants.

Roschke and colleagues8 conducted a single-blind, placebo-controlled study that tested two hypotheses: (1) the combination of acupuncture and antidepressant medications (mianserin, a tetracyclic antidepressant that is used in Europe) is more effective for depression than pharmacological treatment alone (dosage of 90 to 120 mg/d), and that (2) verum (traditional) acupuncture is more effective than sham acupuncture in the treatment of depression.

Results of the study showed that patients who received combined mianserin and acupuncture (verum or sham) improved more than patients who were treated with mianserin alone. No significant difference was detected between patients who received verum acupuncture and those who received sham acupuncture. These results suggest that acupuncture has an unspecific augmenting effect on traditional antidepressants.8

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