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Genetic disposition to primary hyperhidrosis: a review of literature.

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Genetic disposition to primary hyperhidrosis: a review of literature.

Arch Dermatol Res. 2019 Aug 21;:

Authors: Henning MA, Pedersen OB, Jemec GB

Abstract
Primary hyperhidrosis is a condition characterized by excessive sweating. The estimated prevalence is between 0.6 and 4.4%, and it can have economic, psychological, and social consequences for affected individuals. Family and genetic studies have suggested a genetic component in the inheritance of the disease. In this review, we summarize the current literature on genetic disposition to primary hyperhidrosis. We Identified 20 studies on Pubmed and Embase in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Probands reported a positive family history in 5.7-65% of cases, and the inheritance appeared to be either autosomal dominant or recessive. Individuals with palmoplantar phenotypes and a positive family history had a younger age of onset. Genetic linkage and genome-wide association studies have identified loci on chromosome 2, 14, and 16. However, the evidence is heterogeneous and limited. It seems that primary hyperhidrosis is polygenically inherited, and considering the impairment, further data to understand the genetic etiology of the disease are needed.

PMID: 31435740 [PubMed – as supplied by publisher]

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Endoscopic thoracic sympathicotomy for primary palmar hyperhidrosis: A retrospective multicenter study in China.

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Endoscopic thoracic sympathicotomy for primary palmar hyperhidrosis: A retrospective multicenter study in China.

Surgery. 2019 Aug 01;:

Authors: Chen J, Liu Y, Yang J, Hu J, Peng J, Gu L, Deng B, Li Y, Gao B, Sheng Q, Chen G, Zhang Y, Xie D, Wang J, Zhan H, Tu Y

Abstract
BACKGROUND: This study aimed to evaluate the clinical efficacy and safety of endoscopic thoracic sympathicotomy and to explore strategies to decrease the incidence of transfer hyperhidrosis (TH).
METHODS: From January 2003 to July 2016, 10,275 patients with primary palmar hyperhidrosis underwent endoscopic thoracic sympathicotomy in 15 different institutions. We carried out a retrospective analysis of these patients who were grouped into group A, those with nonretained R2 (R2, R2-3, or R2-4 ablation), and group B, those with retained R2 (single R3 or R4 ablation).
RESULTS: All procedures were performed successfully. Both hands of all patients became warm and dry immediately after endoscopic thoracic sympathicotomy. Pneumothorax occurred in 146 patients, and 39 patients had intraoperative bleeding. Follow-up was carried out from 6 months to 13 years. A total of 531 patients (5.2%) were lost to follow-up. The effective rate for primary palmar hyperhidrosis was 100%. Palmar hyperhidrosis recurred in 73 patients (0.7%). Transfer hyperhidrosis appeared in 7,678 patients (78.8%). For groups A and B, the incidence of TH was 80.4% and 78.5%, respectively (P > .05), but the incidence of grade III+IV TH in group B (1.6%) was less than that in group A (4.8%; P < .001).
CONCLUSION: Endoscopic thoracic sympathicotomy is a minimally invasive, safe, and effective therapeutic method for primary palmar hyperhidrosis. Although the overall incidence of TH is high, the incidence of grade III to IV TH can be decreased by reserving R2, lowering the level of thoracic sympathicotomy, and single severing of R3 or R4.

PMID: 31378477 [PubMed – as supplied by publisher]

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Postmenopausal craniofacial hyperhidrosis treated with botulinum toxin type B.

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Postmenopausal craniofacial hyperhidrosis treated with botulinum toxin type B.

J Dermatol. 2019 Aug 02;:

Authors: Cabreus P, Swartling C, Rystedt A

Abstract
Hyperhidrosis can seriously impair patients’ quality of life. Medical history, including heredity and hyperhidrosis during youth, as well as current age and time elapsed since menopause, is important to consider when distinguishing between postmenopausal hyperhidrosis and vasomotor symptoms to enable adequate treatment. This report concerns a subgroup of eight postmenopausal patients participating in a randomized controlled trial regarding botulinum toxin (Btx) type B treatment in craniofacial hyperhidrosis. Even though the sample size is small and the enrolment is not yet completed, the promising data collected hitherto are interesting to present in advance because this subtype of craniofacial hyperhidrosis is often underrecognized and challenging to treat. Patients were randomized to receive Btx type B or placebo. Measurements were performed before treatment and 3 ± 1 weeks after. The Dermatology Life Quality Index (DLQI) score was improved for all patients after Btx type B treatment (n = 3) with a median decrease of 9 points (90% median improvement). The placebo group (n = 5) had a median increase of 2 points (-18% median decline). When the same group (n = 5) received Btx type B (open) the DLQI score decreased with a median of 7 points compared with baseline (91% median improvement). Treatment-related adverse events were temporary and did not prevent improvement of life quality. Furthermore, background data evaluation uncovered interesting findings regarding vasomotor symptoms in relation to postmenopausal hyperhidrosis. In conclusion, the results indicated that Btx type B seems to be a safe and effective treatment in postmenopausal craniofacial hyperhidrosis. Further research is encouraged.

PMID: 31373068 [PubMed – as supplied by publisher]

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Erratum: Zur E. Topical Treatment of Primary Focal Hyperhidrosis, Part 2. IJPC 2019; 23(2):94-104.

Erratum: Zur E. Topical Treatment of Primary Focal Hyperhidrosis, Part 2. IJPC 2019; 23(2):94-104.

Int J Pharm Compd. 2019 Jul-Aug;23(4):351

Authors: IJPC Staff

Abstract
The METHOD OF PREPARATION in the formulation titled Compounded Oxybutynin Chloride 10% Topical Gel on page 102 in the article titled Topical Treatment of Primary Focal Hyperhidrosis, Part 2. IJPC. 2019; 23(2): 94-104 was published incorrectly. Please replace that information with the data provided herein.

PMID: 31315087 [PubMed – in process]

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Ipsilateral Hyperhidrosis: Atypical Symptom of Small Lung Adenocarcinoma Evaluated by 18F-FDG PET-CT.

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Ipsilateral Hyperhidrosis: Atypical Symptom of Small Lung Adenocarcinoma Evaluated by 18F-FDG PET-CT.

Nucl Med Mol Imaging. 2019 Jun;53(3):231-234

Authors: Yoo MY, Koong SS, Kim SW, Kim D

Abstract
A 45-year-old male visited our clinic due to right palmar anhidrosis and contralateral hyperhidrosis. Chest computed tomography (CT) showed a solitary pulmonary nodule with mediastinal lymph node enlargement, but a cause for atypical palmar anhidrosis was not identified. Subsequent fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed (PET/CT) revealed a localized pleural metastasis at the right apex with direct invasion of the paravertebral sympathetic chain. The pleural metastasis, which was not seen on chest CT, evoked ipsilateral anhidrosis independent of a mass effect or direct invasion by the primary lung tumor. 18F-FDG PET/CT can be helpful in identifying the cause of atypical symptoms in patient with small sized lung cancer.

PMID: 31231444 [PubMed]

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Safety and efficacy of topical formulations containing 0.5, 1 and 2% glycopyrronium bromide in patients with primary axillary hyperhidrosis: a randomised, double-blind, placebo-controlled study.

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Safety and efficacy of topical formulations containing 0.5, 1 and 2% glycopyrronium bromide in patients with primary axillary hyperhidrosis: a randomised, double-blind, placebo-controlled study.

Br J Dermatol. 2019 Jun 19;:

Authors: Masur C, Soeberdt M, Kilic A, Knie U, Abels C

Abstract
primary hyperhidrosis (HH), a dysregulation of the parasympathetic nerve system, is characterized by focal symmetrical sweating of axillae, palms or the plantar region.1 Hyperhidrosis is a chronic condition with severe impact on patients’ quality of life, however, more than 50% of hyperhidrosis patients receive no treatment.1,2 Overall prevalence was reported to be 16% in German adults, with axillary hyperhidrosis being the most common form of HH.2 The objective of this study was to assess safety and tolerability, efficacy and pharmacokinetics, of escalating concentrations of glycopyrronium bromide (GPB), a competitive antagonist of muscarinic acetylcholine receptor mAChR, in subjects with axillary hyperhidrosis. This article is protected by copyright. All rights reserved.

PMID: 31218668 [PubMed – as supplied by publisher]