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Continuous evaluation of exosomatic electrodermal activity in patients with primary palmoplantar hyperhidrosis

Einstein (Sao Paulo). 2024 Dec 9;22:eAO1152. doi: 10.31744/einstein_journal/2024AO1152. eCollection 2024.

ABSTRACT

OBJECTIVE: To objectively evaluate sweat intensity in patients with primary hyperhidrosis by measuring electrodermal activity using a continuous exosomatic technique without external stimuli.

METHODS: This prospective and transversal study analyzed 10 patients with palmoplantar hyperhidrosis (HH Group) and 10 individuals without it (Control Group) between January and August 2023. All participants underwent one clinical evaluation and completed two multiple-test questionnaires without any intervention from the interviewer, based on their own estimates of sweat perception and anxiety or depression symptoms. Then, the electrodermal activity was measured with the MP36R, a portable instrument from Biopac Systems Inc. (USA), using exosomatic and direct current techniques. Data were tested for normality using the Shapiro-Wilk test. Descriptive statistics were expressed as medians and interquartile ranges (p25-75) for numerical variables and as absolute and relative frequencies for categorical variables. Fisher’s exact test and Mann-Whitney U test were used to compare the groups. Statistical significance was set at p<0.05.

RESULTS: Palmoplantar sweating was significantly higher in the HH Group than in the Control Group (p<0.01). There were no statistically significant differences in anxiety and depression levels between the groups (p=0.87; p=0.32). Continuous exosomatic electrodermal activity resulted in significantly higher skin conductance in patients with hyperhidrosis than in controls.

CONCLUSION: Continuous exosomatic electrodermal activity without external stimuli proved to be suitable for the objective analysis of patients with hyperhidrosis in a non-invasive and sensitive manner.

PMID:39661855 | DOI:10.31744/einstein_journal/2024AO1152

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Hyperocclusive technique for topical anesthesia for injecting botulinum toxin in palmar hyperhidrosis

J Cutan Aesthet Surg. 2024 Oct-Dec;17(4):335-336. doi: 10.4103/JCAS.JCAS_224_22. Epub 2023 Jun 27.

ABSTRACT

Injecting botulinum toxin under simple topical anesthesia using a eutectic mixture of lignocaine and prilocaine is a painful procedure. A simple hyper-occlusive modification in the existing technique of topical anesthesia of palms facilitates painless injections leading to greater patient satisfaction and compliance.

PMID:39649766 | PMC:PMC11619159 | DOI:10.4103/JCAS.JCAS_224_22

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The effects of sympathectomy ganglion levels on late complications in the treatment of hyperhidrosis

J Minim Access Surg. 2024 Nov 29. doi: 10.4103/jmas.jmas_75_24. Online ahead of print.

ABSTRACT

INTRODUCTION: Pathologically excessive sweating in areas such as the palmar, axillary and/or plantar together with sympathetic hyperactivity that occurs independently of systemic causes is called primary hyperhidrosis. Although primary idiopathic hyperhidrosis can be seen at any age, the disease is most commonly seen in adolescents and young adults. The frequency of male and female genders is usually equal. Some medical and minimally invasive methods can be used in the treatment of primary hyperhidrosis. However, the known curative gold standard treatment method for the disease is thoracoscopic thoracic sympathectomy operation.

PATIENTS AND METHODS: In this study, a total of 150 patients who applied to Trakya University Health Practice and Research Center, Department of Thoracic Surgery, between 15 October 2008 and 15 June 2021 and underwent thoracoscopic thoracic sympathectomy due to the diagnosis of hyperhidrosis were evaluated retrospectively. The patients were separated into two groups. Thoracoscopic thoracic sympathectomy was performed on the T2-T4 in the first group (Group I – n : 88) and on the T3-T5 sympathetic ganglions in the second group (Group II – n : 62).

RESULTS: The median age of patients included in the study was found to be 24 (20.75-28) years. Group I and Group II were similar in terms of gender characteristics, but Group II was older. Our success rate was found to be 92% ( n = 138). There was no mortality, major complication such as bleeding requiring open thoracotomy, chylothorax or Horner’s syndrome in any of the patients. Minor complications were seen in the early and late period of the operation at a low rate. Our overall compensatory hyperhidrosis rate was 52% ( n = 78). Compensatory hyperhidrosis was detected more in Group I, although this was not statistically significant. We determined the overall satisfaction rate of our patients as 87.3% ( n = 133). The satisfaction rates of the patients in Group I and Group II were found to be similar.

CONCLUSIONS: Thoracoscopic thoracic sympathectomy is a fast, safe and minimally invasive treatment method with a low complication rate. More than 90% success and a significant increase in psychosocial condition and professional quality of life can be achieved with this procedure. Future studies are needed to reveal the relationship between operated ganglion levels and the development of compensatory hyperhidrosis.

PMID:39611563 | DOI:10.4103/jmas.jmas_75_24

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A Review of the Etiologies and Key Clinical Features of Secondary Hyperhidrosis

Am J Clin Dermatol. 2024 Nov 27. doi: 10.1007/s40257-024-00908-6. Online ahead of print.

ABSTRACT

Secondary hyperhidrosis is a multifactorial condition that poses unique diagnostic and management challenges. Distinguishing secondary from primary hyperhidrosis remains difficult due to overlapping symptoms. This review consolidates existing evidence on the numerous underlying causes and pathophysiologic mechanisms of secondary hyperhidrosis across various disciplines. Secondary hyperhidrosis typically manifests in the fourth decade of life or later, whereas primary hyperhidrosis usually begins earlier. Generalized hyperhidrosis often suggests a secondary cause, though the distribution can vary, including focal symmetric/asymmetric or regional patterns depending on the underlying condition. Key clinical features such as lack of family history and associated symptoms provide additional clues favoring a secondary etiology. Recognizing these distinct characteristics is crucial for accurate differentiation between secondary and primary hyperhidrosis, thereby guiding appropriate evaluation and management of the underlying cause.

PMID:39604775 | DOI:10.1007/s40257-024-00908-6

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Patient satisfaction after miraDry() treatment for axillary hyperhidrosis. Results of an online patient survey after miraDry() treatment to reduce excessive axillary sweating

GMS Interdiscip Plast Reconstr Surg DGPW. 2024 Oct 15;13:Doc06. doi: 10.3205/iprs000188. eCollection 2024.

ABSTRACT

Hyperhidrosis, with a prevalence of 1 to 2% of the population, primarily affects young people under 40 years of age. The individually perceived burden of odor and amount of sweat leads to a reduced quality of life. In recent years, conservative and surgical measures have been used to treat hyperhidrosis. The miraDry® method based on microwave technology is a non-invasive treatment that enables comparable results in terms of effectiveness while at the same time reducing the burden. In the Park-Klinik Birkenwerder, 282 hyperhidrosis patients were treated with the miraDry® method between 2017 and 2024. An online survey was conducted in May and June 2024. 220 patients were contacted, the results of 80 patients are available (response rate: 36.4%). Changes in the restrictions caused by increased sweating in various areas of life were asked before and after the treatment. In addition, the assessment of general quality of life before and after the treatment was compared. There is a significant reduction in restrictions and a corresponding increase in quality of life after treatment with miraDry®. Satisfaction with the method is high, which is reflected in a high recommendation rate of over 80%.

PMID:39559459 | PMC:PMC11570828 | DOI:10.3205/iprs000188

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Single-port Thoracoscopic Laser Sympathicotomy for Primary Hyperhidrosis: A Safe and Minimally Invasive Approach With Favorable Short-term Outcomes

Surg Laparosc Endosc Percutan Tech. 2024 Nov 11. doi: 10.1097/SLE.0000000000001340. Online ahead of print.

ABSTRACT

OBJECTIVE: Thoracoscopic sympathicotomy is a well-established treatment for severe palmar hyperhidrosis. This study evaluates the safety and efficacy of a novel one-stage, bilateral, single-port laser sympathicotomy with minimal dissection.

METHODS: We retrospectively reviewed 73 patients with severe palmar hyperhidrosis who underwent this novel surgical technique between June 2023 and October 2023. Outcomes included complications, recurrent hyperhidrosis, and compensatory hyperhidrosis (CH). Hyperhidrosis severity was assessed using the hyperhidrosis disease severity score (HDSS).

RESULTS: The mean patient age was 21.3 ± 7.7 years, with a female predominance (52.1%). Sympathicotomy was performed at the T3 level only in 46 patients (63%), with the remaining undergoing sympathicotomy at both T3 and T4 levels. Median cauterization and operating times were 78 seconds and 8.7 minutes, respectively. No complications occurred. Two patients experienced recurrent hyperhidrosis during a median follow-up of 9 months, both were mild (HDSS grade 1). CH developed in 41 patients (56.2%), with all occurring within the first month postoperatively. The most common sites for CH were the back (51.2%), chest (43.9%), thigh (41.5%), abdomen (36.6%), and lower leg (36.6%). The majority of patients with CH (95.1%) reported mild (HDSS grade 1) or moderate (HDSS grade 2) hyperhidrosis. A higher body mass index was a significant risk factor for CH (odds ratio: 1.36, 95% CI: 1.12-1.71 for every 1 kg/m2 increase).

CONCLUSIONS: This minimally invasive, single-port thoracoscopic laser sympathicotomy appears to be safe and effective for patients with palmar primary hyperhidrosis. Future studies should investigate long-term outcomes and refine the technique to minimize invasiveness even further.

PMID:39523766 | DOI:10.1097/SLE.0000000000001340

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Comparative study of CT-guided radiofrequency and alcohol ablation in the treatment of primary hyperhidrosis

Front Surg. 2024 Oct 28;11:1402241. doi: 10.3389/fsurg.2024.1402241. eCollection 2024.

ABSTRACT

OBJECTIVE: This study compared the efficacy and complications of percutaneous radiofrequency ablation with anhydrous alcohol ablation of sympathetic nerves in treating hyperhidrosis of the head and palms.

METHODS: A retrospective analysis was conducted on 54 patients with primary hyperhidrosis in our department from June 2018 to June 2021, divided into a radiofrequency ablation group (30 cases) and an anhydrous alcohol ablation group (24 cases). Treatment outcomes were compared by analyzing the number of CT scans, effectiveness, and complications.

RESULTS: In the radiofrequency group, symptoms of bilateral hyperhidrosis significantly improved in 24 patients, with an 80% postoperative satisfaction rate. In the alcohol ablation group, symptoms significantly improved in 19 patients postoperatively, with a 79.2% satisfaction rate. There was no statistically significant difference in effectiveness or complications between the two groups (all P > 0.05). The number of CT scans in the radiofrequency group was 4.60 ± 0.56 and 6.08 ± 0.28 in the alcohol group, showing a statistically significant difference (P < 0.05).

CONCLUSION: This study concluded that both percutaneous radiofrequency ablation and alcohol ablation are effective methods for hyperhidrosis treatment, with similar effectiveness and complication rates, but the radiofrequency ablation group required fewer CT scans.

PMID:39534691 | PMC:PMC11555560 | DOI:10.3389/fsurg.2024.1402241

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Pharmacologic properties and results of a clinical study of oxybutynin hydrochloride lotion (APOHIDE() Lotion 20%) as a novel treatment for primary palmar hyperhidrosis

Nihon Yakurigaku Zasshi. 2024;159(6):413-422. doi: 10.1254/fpj.24037.

ABSTRACT

APOHIDE® Lotion 20% is a topical agent for treating primary palmar hyperhidrosis that contains the active ingredient oxybutynin hydrochloride. Oxybutynin hydrochloride has anticholinergic effects and inhibits sweating by binding to the M3 receptor, a subtype of the muscarinic acetylcholine receptor, in eccrine sweat glands. The clinical response to oxybutynin hydrochloride treatment also involves N-desethyloxybutynin, an active metabolite of oxybutynin. A clinical study in Japanese patients with primary palmar hyperhidrosis showed superiority of APOHIDE® Lotion 20% over placebo, i.e., there were significantly more responders (i.e., patients with a reduction in sweat volume ≥50% from baseline) in the APOHIDE® Lotion 20% group (APOHIDE® Lotion 20% group: 52.8%, placebo group: 24.3%; treatment difference: 28.5%; P < 0.001, Fisher’s exact test). This and other clinical studies reported some adverse events (AEs) associated with the drug’s anticholinergic effects and some application site AEs, but most of the AEs were mild. Clinical response did not decrease with long-term (52-week) treatment, and only a few patients (2 of 125) discontinued treatment because of AEs. Taken together, study results indicate that APOHIDE® Lotion 20% may be an effective and safe new treatment option for patients with primary palmar hyperhidrosis.

PMID:39496419 | DOI:10.1254/fpj.24037