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M
I
N
ERVA
MEDICA
VOLUME 99 .2008
PUBBLICAZIONE PERIODICA BIMESTRALE - POSTE ITALIANE SPED. IN A. P. 45% ART. 2 COMMA 20/B LEGGE 662/96 AUT. 584/DC/DCI/CN - ISSN 0026-4806 TAXE PERÇUE
EDIZIONI .MINERVA .MEDICA
EFFICACY OF HT 7 POINT ACUPRESSURE STIMULATION
IN THE TREATMENT OF INSOMNIA IN CANCER PATIENTS
AND IN PATIENTS SUFFERING
FROM DISTURBANCES OTHER THAN CANCER
R. CERRONE, L. GIANI, B. GALBIATI, G. MESSINA, M. CASIRAGHI,
E. PROSERPIO, M. MEREGALLI, P. TRABATTONI, P. LISSONI, G. GARDANI
Reprinted from
Efficacy of HT 7 point acupressure stimulation
in the treatment of insomnia in cancer patients
and in patients suffering
from disturbances other than cancer
R. CERRONE, L. GIANI, B. GALBIATI, G. MESSINA, M. CASIRAGHI,
E. PROSERPIO, M. MEREGALLI, P. TRABATTONI, P. LISSONI, G. GARDANI
Department of Radiotherapy and Oncology
San Gerardo Hospital, Monza, Milan, Italy
Aim. The induction of sleep would depend on
interaction between gabaergic system and the
pineal gland through its main hormone mela-
tonin. Until few years ago benzodiazepines
were the only drugs effective in the treatment
of insomnia. Recently, however, both melato-
nin and acupressure have appear to be active
in sleep disorders. The aim of study was to eva-
luate the efficacy of HT7 point acupressure in
insomniac.
Methods. The study enrolled 25 patients affec-
ted by sleep disorders, 14 of whom had a neo-
plastic disease. They were treated by HT7 sti-
mulation for al least two consecutive weeks
using a medical device named H7 Insomnia
Control®®.
Results. An improvement in the quality of sleep
was achieved in 15/25 (60%) patients, with a
more evident efficacy in cancer patients (11/14
[79%]).
Conclusion. This study confirms previous cli-
nical data showing the efficacy of acupressure
in the treatment of sleep disorders, particu-
larly in cancer-related insomnia.
Key words: Acupressure - Insomnia - Sleep disor-
ders - Neoplasms - Melatonin.
Insomnia is one of the most frequent psy-
chobiological disturbances in the modern
world.1The biochemical mechanisms respon-
sible for insomnia have to be better investi-
gated and defined, since the physiopatholo-
gy of sleep still remains at least in part
unknown. However, according to the knowl-
edgement available up to now, it is known
that the induction of sleep is mainly mediat-
ed by the activation of the gabaergic system.2
In fact, the drugs commonly used in the treat-
ment of insomnia exert their action by stim-
ulating benzodiazepine receptors, which are
connected to the gabaergic ones.3Therefore,
sleep disorders could depend at least in part
on an anomalous function of the gabaergic
system.2, 3 Moreover, recent investigations
have demonstrated the fundamental role of
the pineal hormone melatonin (MLT) in the
induction of sleep 4and in the treatment of
insomnia.5MLT would also act by modulat-
ing the gabaergic system, however in a dif-
ferent way with respect to that followed by
benzodiazepine drugs, as suggested by the
fact that MLT-induced sleep is characterized
by a re-establishment of REM phase of sleep,
with a following amplification of the capac-
ity of dreaming,5whereas the action of ben-
zodiazepines is constantly associated with a
suppression of dream. Finally, further recent
researches have demonstrated the possibili-
Received on September 8, 2008.
Accepted for publication on October 13, 2008.
Corresponding author: P. Lissoni, Dipartimento di
Radioterapia e Oncologia, Ospedale San Gerardo, 20052
Monza (MI), Italy. E-mail: p.lissoni@hsgerardo.org
Vol. 99, 2008 MINERVA MEDICA
1
MINERVA MED 2008;99
CERRONE EFFICACY OF HT 7 POINT ACUPRESSURE ON INSOMNIA
ty to act on the psychoneuroendocrine system
not only through a biochemical approach,
but also by a bioenergetic strategy, such as
acupuncture and acupressure on specific
body points.6, 7 In particular, it has been
demonstrated that HT7 point (Shenmen in
Chinese) acupressure may be effective in the
treatment of insomnia due to different rea-
sons.8Moreover, it has been shown that HT7
point acupressure may stimulate the release
of MLT from the pineal gland,9by suggesting
that the efficacy of HT7 stimulation in the
treatment of insomnia may be due at least
in part to the stimulation of MLT release,
whose efficacy as sleep inducer has been
well documented.4, 5 On this basis, we have
evaluated the efficacy of HT7 point acupres-
sure in the treatment of insomnia in a group
of oncologic and non-oncologic patients.
Materials and methods
The study enrolled 25 consecutive patients
suffering from insomnia due to different rea-
sons (males/females ratio: 8/17; median age
62 years, range 48-75). Fourteen patients were
affected by cancer (breast cancer: 6; colorectal
cancer: 5; non-small cell lung cancer: 3),
while the remaining 11 patients were suffer-
ing from medical illnesses other than cancer
(anxiety: 7; idiopathic insomnia: 3; depres-
sion: 1). Eligibility criteria were, as follows:
sleep disorders lasting from at least three
months, lack of response to the common
benzodiazepine drugs, no chronic pain, and
no concomitant administration of drugs
inhibiting the induction of sleep. HT7 point
was located on the outer side of the wrist, on
the radial site of the flexor carpi ulnaris ten-
don, between the ulna and the pisiform
bones. The acupressure devices (H7 Insomnia
Control®, Consulteam s.a.s., Como, Italy)
were applied on both wrists at 10.00 p.m.
each night for at least two weeks, corre-
sponding to the time needed to obtain a sig-
nificant improvement of sleep quality.8
Statistical analysis
The results were statistically analyzed by
the χ2test.
Results
Irrespectively of the reason responsible for
sleep disorders, an improvement in the qual-
ity of sleep was achieved within the first 10
days of treatment in 15/25 (60%) patients. The
median period to obtain an improvement of
sleep quality was 6 days (range 2-10).
Moreover, the percentage of improvement in
sleep quality obtained from HT7 point acu-
pressure was higher in oncologic patients than
in those with diseases other than cancer, even
though the difference was not statistically sig-
nificant (11/14 [79%] vs 4/11 [36%]). In contrast,
the efficacy was apparently low in patients
suffering from anxiety and depression. The
diseases of the 10 patients, who had no ben-
efit from acupressure, were, as follows: can-
cer: 3; anxiety: 5; idiopathicinsomnia: 1;
depression: 1. The percentages of the effica-
cy of HT7 point acupressure in relation to the
type of disease are shown in Table I.
Discussion and conclusions
According to previous preliminary results
reported by other authors,9this study con-
firms the efficacy of HT7 point stimulation
in the treatment of insomnia in a relatively
high percent of patients. Obviously, the low
number of patients does not allow us to
establish which may be the human illness
more responsive to HT7 stimulation. Howe-
2
MINERVA MEDICA Vol. 99, 2008
TABLE I.—Percent of efficacy of HT7 point acupressu-
re in the treatment of insomnia in relation to the type
of disease.
Disease Efficacy
N. (%)
Neoplastic disease 11/14 (79%)
— Breast cancer 4/6 (67%)
— Colorectal cancer 4/5 (80%)
— Lung cancer 3/3 (100%)
Anxiety 2/7 (29%)
Idiopathic insomnia 2/3 (67%)
Depression 0/1 (
Overall patients 15/25 (60%)
EFFICACY OF HT 7 POINT ACUPRESSURE ON INSOMNIA CERRONE
ve mediante un dispositivo medico denominato H7
Insomnia Control®.
Risultati. Un miglioramento nella qualità del son-
no è stato ottenuto da 15/25 (60%) pazienti, con una
più evidente efficacia nei pazienti oncologici (11/14
[79%).
Conclusioni. Questo studio conferma precedenti
dati clinici che dimostrano l’efficacia dell’acupres-
sione nel trattamento dei disturbi del sonno, in par-
ticolare nell’insonnia connessa al cancro.
Parole chiave: Acupressione - Insonnia - Disturbi del
sonno - Neoplasie - Melatonina.
References
1. Lack LC, Wright HR. Chronobiology of sleep in humans.
Cell Mol Life Sci 2007;64:1205-15.
2. Lloyd KG, Thurer F, Pilc A. Upregulation of gamma-
aminobutyric acid (GABA) B binding system in rat
frontal cortex. J Pharmacol Exp Ther 1985;235:191-9.
3. Nitz D, Siegel JM. GABA release in the dorsal raphe
nucleus: role in the control of REM sleep. Am J Physiol
1997;273:R451-5.
4. Golombek DA, Pevet P, Cardinali DP. Melatonin effects
on behavior. Neurosci Biobehavior Rev 1996;20;403-12.
5. Wyatt JK, Dijk DJ, Ritz-deCecco A, Ronda JM, Czeisler
CA. Sleep facilitating effect of exogenous melatonin
in healthy young men and woman is circadian-phase
dependent. Sleep 2006;29:609-18.
6. Diddble SL, Chapman J, Mach KA, Shih AS. Acupressure
for nausea: results of a pilot study. Oncol Nurs Forum
2000;27:41-7.
7. Werntoft E, Dykes AK. Effect of acupressure on nausea
and vomiting during pregnancy. J Reprod Med
2001;46:835-9.
8. Sok SR, Erlen JA, Kim KB. Effects of acupuncture ther-
apy on insomnia. J Adv Nurs 2003;44:375-84.
9. Warren Spence D, Kayumov L, Chen A, Jain U, Katzman
MA, Shen J et al. Acupuncture increases nocturnal
melatonin secretion and reduces insomnia and anxiety:
a preliminary report. J Neuropsychiatry Clin Neurosci
2004;16:19-28.
10. Maestroni GJM. The immunoneuroendocrine role of
melatonin. J Pineal Res 1193;14:1-10.
11. Gardani G, Cerrone R, Biella G, Galbiati E, Proserpio
E, Casiraghi M et al. A progress study of 100 cancer
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Vol. 99, 2008 MINERVA MEDICA
3
ver, according to the results of this study, it
seems that cancer-related sleep disorders may
be particularly responsive to the acupressure
approach. This finding could also have some
importance not only in terms of control of
insomnia in cancer patients, since MLT,
whose secretion would be stimulated by HT7
acupressure,9has been proven to play an
anticancer activity.10 Therefore, HT7 stimu-
lation could improve the pineal function in
cancer patients and contribute to the control
of the neoplastic growth. Then, this prelim-
inary clinical investigation would justify fur-
ther researches to improve the quality of life
of cancer patients and perhaps the clinical
course of the neoplastic disease by a bioen-
ergetic approach, such as acupressure
method. In fact, previous clinical investiga-
tions had already demonstrated the efficacy
of acupressure in the control of chemother-
apy-induced nausea and vomiting.11
Riassunto
Efficacia della stimolazione con acupressione del
punto HT7 nel trattamento dell’insonnia in pazien-
ti oncologici o affetti da patologie non neoplastiche
Obiettivo. L’induzione del sonno sembra dipen-
dere dall’interazione tra il sistema gabaergico e la
ghiandola pineale attraverso il suo ormone melatonina
(MLT). Fino a pochi anni fa le benzodiazepine erano
i soli farmaci efficaci nel trattamento dell’insonnia.
Recentemente, invece, sia la melatonina sia l’acu-
pressione sembrano essere attive sui disturbi del son-
no. Scopo dello studio è valutare l’efficacia dell’acu-
pressione del punto HT7 nell’insonnia.
Metodi. Lo studio ha incluso 25 pazienti affetti da
disturbi del sonno, di cui 14 con malattia neoplasti-
ca. I pazienti sono stati trattati con la stimolazione
del punto HT7 per almeno due settimane consecuti-