No abstract

No abstract

Acquired idiopathic generalized anhidrosis (AIGA) is characterized by an acquired impairment in total body sweating despite exposure to heat or exercise. Severe cases may result in heatstroke. Most cases of AIGA have been reported in Asia, especially in Japan. However, there is limited information on the epidemiology of this condition, and no diagnostic criteria or appropriate treatment options have been established. This guideline was developed to fill this gap. It contains information on the etiology, diagnosis, evaluation of disease severity and evidencebased recommendations for the treatment of AIGA. Appropriate treatment according to disease severity may relieve the clinical manifestations and emotional distress experienced by patients with AIGA.

Primary hyperhidrosis is a disorder of excessive, bilateral and relatively symmetrical sweating occurring in the palms, soles and axillae regions without obvious etiology. There have been some reports of the epidemiology of primary hyperhidrosis abroad so far, but there has never been any research performed in Japan. We performed a questionnaire survey for people aged 5-64 years who agreed with the purpose of this study at 20 companies or schools, and received 5807 valid responses. From this survey, each prevalence could broken down into 5.33% for primary palm hyperhidrosis, 2.79% for primary plantar hyperhidrosis, 5.75% for primary axillae hyperhidrosis and 4.7% for primary head hyperhidrosis. Patients with severe symptoms were estimated to be approximately 616,000 for primary palmar hyperhidrosis and 2,239,000 for primary axillae hyperhidrosis in Japan. These findings reveal that many patients feel a decreased quality of life because of symptoms of hyperhidrosis every day. However, only 6.2% of the patients had visited medical institutions. Moreover, few patients take appropriate treatment even after visiting the hospital.

Vitiligo is an acquired pigment disorder in which depigmented macules result from the loss of melanocytes from the involved regions of skin and hair. The color dissimilarity on the cosmetically sensitive regions frequently induces quality of life impairment and high willingness to pay for treatment in patients with vitiligo. The Vitiligo Japanese Task Force was organized to overcome this situation and to cooperate with the Vitiligo Global Issues Consensus Conference. This guideline for the diagnosis and treatment of vitiligo in Japan is proposed to improve the circumstances of Japanese individuals with vitiligo. Its contents include information regarding the diagnosis, pathogenesis, evaluation of disease severity and effectiveness of treatment, and evidence-based recommendations for the treatment of vitiligo. The therapeutic algorithm based on the proposed recommendation is designed to cure and improve the affected lesions and quality of life of individuals with vitiligo.