Review Article

From Acupuncture to Interaction between -Opioid Receptors and Na+ Channels: A Potential Pathway to Inhibit Epileptic Hyperexcitability

Table 1

Clinical reports on acupuncture therapy for epilepsy from some Chinese literature.

Ref.PatientsAgeTypes of epilepsyAcupuncture methods and AcupointsTherapeutic assessmentOutcome

[36]114 cases and 8 healthy controlMean 19 yrs. (6–68) with a history of epilepsy for 1 mo.–35 yr.Various (Grand mal, petit mal, focal, abdominal pain induced, psychomotor induced, mixed)Scalp acupuncture (thoracic region, motor region, chorea and parkinsonism control region, foot motor sensory region, optic region)
Body acupuncture (HT-7, LR-3, GV-26, GV-20, GB-20, LI-4, ST-36)
EEG;
bell sound and verbal suggestion;
response to pinching of the neck skin
72.6% with EEG changes mainly as asynchronism (reduction or cessation of epileptic discharges)

[37]98 casesMean 27 yrs. (2–52) with a history of epilepsy for Ave. 17 yr.Not specified (epileptic attack or EEG confirmed epilepsy)Scalp acupuncture (Motor area, psychic area, sensory area)
Once daily for 15 days as a session, 2-3 sessions in total, 7-day break between sessions, needle retention 30 min
Markedly  effective (>75% seizure frequency reduction, or seizure controlled)
Effective   (50–75% reduction, seizure less severe and interval prolonged)
Slightly  effective   (25–50% reduction)
No  effect   (<25% reduction)
66.3% markedly effective; 23.5% effective; 5.1% effective; 5.1% no effect
The overall effective rate is 89.8%

[38]8 cases5–16 yrs with a history of epilepsy for 1 mo.–7 yr.Status epilepticusManual acupuncture (LI-4, LR-3, Gv-26, GV-20, KI-1, EX-UE-11, PC-5, HT-7, RN-4, ST-40, EX-HN-3, GB-20, SP-6)Symptoms   (unconscious, white form in mouth, cyanotic face, spastic and convulsive in limbs, short, quick breath with occasional stops, sputum in throat, uncontrolled urine)Symptoms controlled with 10 min of acupuncture without relapse in 2–8 yr. followup

[39]78 casesMean 24.7 yr. (17–39 yr.)narcotic abstinence-induced seizuresManual acupuncture
Acupoint: PC-6
Once daily for 10 days, needle retention 30 min with 2 times of stimulation
Markedly  effective (the symptoms of drug addiction and abstaining-induced seizures disappear, and no relapse in 6 mo.)
Effective (alleviated symptoms, occasional relapse in 1 mo.)
No  effect (no relief of symptoms, tranquilizer needed for control of symptoms)
70.51% markedly effective; 23.08% effective; 6.41% no effect
The overall effective rate is 93.59%

[40]129 cases (64-catgut implantation group, 65-AED controls)Mean 21.8 ± 12.0 yrs with a history of epilepsy for Ave. 7.4 yr.General tonic-clonic epilepsyCombined catgut implantation and small dose AED (GV-20, BL-18, ST-40, EX-B-9, CV-15, GB-34, BL-15)
One time of implantation in every 25–30 days as a session for 4-5 sessions in total
Controlled (>92% of therapeutic efficacy percentile, no relapse),
Markedly  effective (70–92% of therapeutic efficacy percentile, 75% seizure frequency reduction)
Effective (40–70% of therapeutic efficacy percentile, 50% seizure frequency reduction),
Slightly  effective (20–40% of therapeutic efficacy percentile, 25–50% seizure frequency reduction)
no  effect (<20% of therapeutic efficacy percentile, <25% seizure frequency reduction)
28.12% (versus 16.92% for control) controlled;
43.75% (versus 33.85%) markedly effective;
21.88% 9 (versus 35.38%) effective; 4.69% (versus 10.77%) slightly effective; 1.56% (versus 3.08%) not effective
The overall effective rate is 93.75% (versus 86.15% for control)

[41]290 cases (160-acupoint catgut embedding group, and 130-acupuncture group)1–48 Yrs with a history of epilepsy for 10 d–21 yr.Mixed epilepsyAcupoint catgut embedding, acupuncture
Primary acupoints:
For catgut embedding-BL-14 penetrating to BL-15, BL-18 to BL-19, BL-20 to BL-21, EX-B-9
For acupuncture: CV-15, GV-20, EX-B-9, PC-5, ST-40
Secondary acupoints (same for two treatments): BL-12 + GV-20; or ST-36 +ST-34; or ST-40 + ST-36; or BL-17 + SP-10; or BL-23 + GV-4
One time of implantation in every 20 days as a session for 6 sessions in total
For acupuncture, 1 time every other day for 6 mo., needle retention 20 min with stimulation 1 time per 5–10 min
Markedly  effective (>75% seizure frequency reduction or no relapse in 1 yr.)
Effective (50–75% seizure frequency reduction),
improved (25–50% seizure frequency reduction),
No  effect (<25% seizure frequency reduction)
The total effective rate is 89.4% and 77.7% for catgut embedding and acupuncture group, respectively

[42]120 cases1.5–55 yrs with a history of epilepsy for 2 mo.–36 yr.Various (Grand mal, petit mal, focal, abdominal pain induced, psychomotor induced, traumatic, mixed)Primary acupoints: GV-20, DU-11, EX-B-9
Secondary acupoints: 1: GV-26 + GV-20, PC-6, LI-4, LR-3; 2: ST-36, BL-15, BL-18, BL-20, BL-23; + ST-40 or BL-62 or KI-6.
Once daily for 10 days as a session, 3 sessions in total, 3–5-day break between sessions, needle retention 30 min with stimulation 1 time per 10 min
Same as Shi et al., 1987 [37]71.7% markedly effective; 23.3% effective; 3.3% effective; 1.7% no effect
The overall effective rate is 98.3%

[43]60 cases (30-acupuncture + Xi Feng capsule group, and 30-Xi Feng capsul controls)<5 yr–16 yrs with a history of epilepsy for < 1 yr–15 yr.Tonic-clonic epilepsyCombined acupuncture with Xi Feng capsule
Acupoints include GV-26, GV-20, GB-20, PC-6, LR-3, ST-36
Once daily for 8 days as a session, 2 sessions in total, 2-day break between sessions, needle retention 30 min with stimulation 1 time per 10 min
Markedly  effective (>75% reduction of seizure duration, >4 reduction of epileptic EEG score)
Effective (50–75% reduction of seizure duration, 2–4 reduction of epileptic EEG score)
No  effect (<50% reduction of seizure duration, <2 reduction of epileptic EEG score)
96.7% (versus 90% for control) overall effective rate in seizure frequency reduction, 80% (versus 60%) in reduction of seizure duration, and 92.3% (versus 88.5%) in EEG improvement

[44]60 cases (30-acupuncture group, and 30-AED controls)Mean 65 yrs
(40–70 yrs)
Epilepsy secondary to cerebral infarction (focal and general tonic-clonic)Combined acupuncture and Chinese herb
Acupoints include three acupoints on back created by the author (Shaofeng Guo)
1 time daily for 14 days as a session, 2 sessions in total
Controlled (no relapse)
Markedly  effective (>75% seizure frequency reduction)
Effective (50–75% seizure frequency reduction)
No  effect (<50% seizure frequency reduction, or increased)
The overall effective rate is 93.3% (versus 80% for control)
No adverse responses (mild dizziness, hypomnesia, limb numbness, weight loss and lassitude that showed in AED treatment control) appear

[45]90 cases (30-acupuncture group, 30-catgut implantation group, 30-AED controls)Mean age 35.02, 33.56 and 31.79 yrs,  in acupuncture, catgut, and control groups, respectively, with a history of epilepsy for Ave. 7.96, 7.30, and 7.68 yr for acupuncture, catgut implantation, and control, respectivelyGeneral tonic-clonic epilepsyAcupuncture and catgut implantation
Primary acupoints include 1: GV-20 + GV-8 + ST-40; 2: BL-15 + BL-18 + GB-34; 3: BL-15 + BL-19 + LI-14
Secondary acupoints include BL-19, GB-20, BL-17, BL-21, BL-23
For catgut embedding, 1 time of embedding in every 15 days for 3 mo
For acupuncture, 1 time every other day for 3 mo., needle retention 30 min with stimulation 1 time per 5–10 min
Same as Deng et al., 2001 [40]The overall effective rate is 93.33%, 86.67%, and 76.67% for catgut implantation, acupuncture group, and control, respectively

[46]100 cases (50-catgut implantation group, 50-AED controls)Mean age 30.25 (versus 33.20 in controls) with a history of epilepsy for Ave. 7.71 (versus 7.33 for control) yr. General paroxysmal epilepsyCatgut implantation
Acupoints and treatment as same as Zhang et al., 2006 [45]
Same as Deng et al., 2001 [40], Zhang et al., 2006 [45]The overall effective rate is 94.0% and 82.0% for catgut implantation group and control, respectively

[47]98 cases12–63 yrs with a history of epilepsy for 5 mo.–20 yr.Jacksonian epilepsyPenetrating needling together with scalp acupuncture and strong/electric needling on body points
GV-14 penetrating to GV-10, GV-9 to GV-8, GV-6 to GV-4, EX-B9 to GV-1, GV-24 to GV-22, GV-20 to GV-19, CV-15 to CV-12
Bilateral PC-6, ST-40, LR-3, and MS-6
Intermittent dense-loose waves with 2-3 Hz for 30–45 min every other day for 10 times as a session with a total 2 sessions and a break of 3–5 days between 2 sessions
Same as Shi et al., 1987 [37]The total effective rate is 85.7%

[48]80 cases (40-catgut implantation group and 40-herbal medicine controls)6–52 yrs with a history of epilepsy for 1–15 yr.Grand mal,
petit mal,
and mixed
Combined catgut implantation and herbal medicine
Acupoints include GV-20, EX-B9, PC-6, CV-15 + ST-40 for phlegm, or + CV-12 for abdominal pain, or + BL-23 for uncontrolled urine
1 time of catgut implantation in every 20–30 days for 6 times
Same as Mao and Guo, 2005 [44]The overall effective rate is 97.5% and 85.0% for catgut implantation group and control, respectively

[49]70 cases (36 combined acupuncture and AED group, 34 AED only controls)6 mo.–6 yr with a history of epilepsy for 1 dayInfantile febrile convulsionCombined acupuncture and AED
Acupoints include GV-26, + KI-1, LI-11, LI-4, and LU-11 for cessation of spasm, or + PC-6 and ST-36 for cessation of vomit
Rapidly  effective: spasms cease within 1-2 min of treatment
Basically  effective: spasms cease in 3-4 min of treatment
Ineffective: spasms cease in >5 min of treatment
Relapse: >2 times of spasms during 1–3 days of treatment
Non relapse: no relapse during 1–3 days of treatment
77.7% (versus 23.5% for control) rapidly effective; 8.3% (versus 55.9%) basically effective; 13.9% (versus 20.6%) ineffective
The overall effective rate is 86.1% (versus 79.4% for control)
Relapse rate is 8.3% (versus 32.4% for control)

Note: since many of these reports were written in Chinese and are not easily available and/or understood by Western peers, we extracted relevant information from these reports and summarized it in this table.