title: [Botulinum toxin type A for the treatment of primary hyperhidrosis: a prospective study of 52 patients].
abstract: OBJECTIVE
  Primary hyperhidrosis is characterized by excessive sweating in a defined region of the body. It should not be considered a purely cosmetic problem as it has a significant impact on the social and professional relationships of affected individuals. The aim of this study was to determine the clinical profile of patients with primary hyperhidrosis and assess the results obtained with the use of botulinum toxin type A (BTX-A) in clinical practice.
  
  
  METHODS
  The study included 52 patients (39 women and 13 men) with a diagnosis of primary hyperhidrosis treated for the first time with BTX-A. All patients completed a questionnaire that included the following information: age; sex; profession; age at onset, family history, and site of hyperhidrosis; accompanying signs and symptoms, and previous treatment; time to effect of BTX-A; local or systemic side effects; and severity of hyperhidrosis before and after BTX-A treatment.
  
  
  CONCLUSIONS
  Primary hyperhidrosis began during puberty in 61.5% of the patients included in the study, 75% were women, and the mean age was 29.9 years. In 36.5% of patients, first-degree relatives also had primary hyperhidrosis. Hyperhidrosis was classified as palmar in 61.5% of cases, plantar in 53.8%, and axillary in 59.6%. Other sites were affected less frequently. The most common accompanying symptoms were facial erythema (32.7%), palpitations (30.7%), muscle tension (28.8%), shivering (23%), and headache (17.3%). Treatment with BTX-A was well tolerated and there was a highly significant reduction in the severity of hyperhidrosis 2 months after performing the treatment (P<0.001).
authors.affiliation: Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España. nuriamarfa@hotmail.com
authors.forename: N
authors.initials: N
authors.lastname: Martí
authors.forename: D
authors.initials: D
authors.lastname: Ramón
authors.forename: L
authors.initials: L
authors.lastname: Gámez
authors.forename: I
authors.initials: I
authors.lastname: Reig
authors.forename: M A
authors.initials: MA
authors.lastname: García-Pérez
authors.forename: V
authors.initials: V
authors.lastname: Alonso
authors.forename: E
authors.initials: E
authors.lastname: Jordá
mesh_terms: D000293:Adolescent; D000328:Adult; D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D006945:Hyperhidrosis / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D009498:Neurotoxins / Q000627:therapeutic use*; D011446:Prospective Studies; D055815:Young Adult
chemical_list: D009498:Neurotoxins; D019274:Botulinum Toxins, Type A