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BackgroundAutism spectrum disorders (ASD) is a common disease and the incidence has been rising constantly. Acupuncture is one of the most widely used complementary and alternative medicine therapies. Despite studies had been done on the effectiveness of acupuncture on ASD children, how factors such as chronological age and the onset pattern influence the effectiveness of the therapy remains unclear. The aim of this retrospective study is to know how symptomatology of ASD alters upon the introduction of scalp acupuncture and how do age and onset type affect the effectiveness of the therapy.MethodsASD children aged 2–11 years old were invited to join the study. In the course of the investigation, they received a total of 30 sessions of scalp acupuncture therapy. They were then evaluated to compare the performance on various aspects before and after the treatment. The influence on the therapeutic effect by factors including chorological age and onset pattern were further taken into consideration and analyzed. In addition, investigation on the relationship between allergies and onset pattern of ASD was performed by statistically analyzing the received epidemiologic data from the participants.Results68 children with ASD participated in the study. It is found that the significant effective rate of scalp acupuncture on ASD is 97%. Scalp acupuncture can improve verbal communication problems the most while noise sensitivity improves the least. The therapeutic effectiveness decreases with increasing age and children with natal autism benefit more from acupuncture than those with regressive autism. In the latter part of the study, we observe a positive correlation between the family history of allergy and onset pattern.ConclusionScalp acupuncture is an effective treatment for alleviating the symptomatology of ASD. The therapeutic effectiveness is expected to be higher for those patients with natal or early onset of the disorder, and at a younger age when they receive the therapy. The study result helps to formulate an ideal regimen for ASD patients and allow therapists and parents to make appropriate expectation towards the therapeutic outcome of acupuncture. Early intervention of scalp acupuncture therapy recommended. The relationship between the family history of allergic disorder and the onset type of ASD hints that the etiologies of natal and regressive ASD are discrete. It shows a great significance in differentiating the onset pattern in carrying out clinical assessments or researches on ASD patients.Trial registration This retrospective study was approved by the Committee on the Use of Human and Animal Subjects in Teaching and Research, Hong Kong Baptist University on 4th Aug 2017. The retrospectively registered number is HASC/Student/17-18/0115Electronic supplementary materialThe online version of this article (10.1186/s13020-018-0189-6) contains supplementary material, which is available to authorized users.

Based on related elaboration of the Yellow Emperor's Canon of Medicine, this article analyzed and summarized the clinical meaning, application principles and the basic operating methods of Traditional Acupuncture (TA), and demonstrated that the TA is completely different to modern needle stimulation. TA has a specific application background, direct-viewing thinking mode and clear operational connotation. The key of operation in TA is how to grasp and control Qi, which typically reflect the unique image of the Chinese civilization with intuitive perceptual characteristics of thinking. In contrast, modern needle-stimulation uses needles as a stimulus, to activate a series of physical and functional reactions in a body. There have great differences between the two. It was indicated that correctly understanding with the basic principle and specific meaning of TA is very important in acupuncture clinical and research works.

Sleeping problems in children with Autism Spectrum Disorder (ASD) has been a concern as poor sleep may humper their daytime performance and even worsen the presentation of symptoms. Since acupuncture has been effective in treating insomnia in adults, we would like to know if children with ASD may also benefit better sleep quality from scalp acupuncture treatment. Our results showed that children with ASD generally obtain better sleep after regular scalp acupuncture therapy for 6 months. Participants have made significant improvements in bedtime resistance, sleep anxiety and daytime sleepiness domains.

No current conventional treatment methods have been proven effective in improving core symptoms of autism spectrum disorders (ASD). In pursuit of a potent remedy for ASD, scalp acupuncture, one of the complementary and alternative medicines (CAM), may have potential in treating children with ASD according to recent clinical studies. In our first study, the effect of scalp acupuncture on prominent symptoms of ASD was investigated. Factors contributing to the effectiveness of ASD such as age and onset pattern had also been evaluated. Results showed that verbal communication and social and behavioral aspects of the patient could benefit from scalp acupuncture. Moreover, early intervention before 3 years old will bring about better therapeutic outcomes. The effect of scalp acupuncture on emotional and behavioral problems in children with ASD was further elaborated in the second study. Our observation on patients noted drastic improvements in emotional and emotion-related behavioral problems after the introduction of scalp acupuncture. Feedbacks from parents also reflected a positive progress in performance on cognitive, social, and behavioral aspects after treatment. The influence of scalp acupuncture on the sleeping quality and habit in children with ASD was investigated in the third study. Children had shown less resistance and anxiety toward sleep after scalp acupuncture.

While conventional treatments for many mental problems remain problematic and unsatisfactory in therapeutic outcomes, there is great demand for an effective yet economical treatment method that can alleviate the suffering of psychiatric patients. In traditional Chinese medicine, acupuncture on the scalp has been used for centuries. Not until recent decades did acupuncturists and clinicians develop new understandings and theories on the effect of scalp acupuncture. Upon elaboration on the therapeutic value of scalp acupuncture, it shows great potential in treating mental health disorders including depression, anxiety disorders, schizophrenia, and insomnia. Its profound treatment outcome in clinical use has caught clinicians' attention in recent years. However, controlled studies and investigations on its effect on psychiatric problems remain relatively small in number, and determinative evidence has yet to be found. In order to provide conclusive evidence on the use of scalp acupuncture to these disorders, more data from high-quality controlled trials are urgently needed. Since scalp acupuncture has advantages over the use of traditional acupuncture or body acupuncture in clinical and investigation settings, we are expecting a shift of attention from individualized acupuncture to a standardized universal scalp acupuncture treatment in clinical practice and academia.