Development of botulinum toxin A-coated microneedle for treating palmar hyperhidrosis.

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Development of botulinum toxin A-coated microneedle for treating palmar hyperhidrosis.

Mol Pharm. 2019 Oct 15;:

Authors: Shim DH, Nguyen TT, Park PG, Kim MJ, Park BW, Jeong HR, Kim DS, Joo HW, Choi SO, Park JH, Lee JM

Abstract
Hyperhidrosis is a disorder that produces excess amount of sweat. The botulinum neurotoxin A (BoNT/A) has been used to treat hyperhidrosis through multiple intradermal injections at the site of condition. However, due to its toxicity, it is important to precisely deliver the proper dose of toxin to the target site. In addition, the use of conventional hyperdermic needle for multiple injections in the palm makes the approach undesirable and painful. Here, we designed a BoNT/A-coated microneedle (BoNT-MN) array and tested its efficacy as a substitute pain-free method to treat hyperhidrosis. BoNT-MNs were prepared by coating BoNT/A formulation on poly-lactic acid microneedles and were found to successfully penetrate in vitro thick skin. The coating formulations were then tested for its stability at 4°C, 25°C, and 37°C for 24 h. BoNT-MNs were found to be much more stable than its liquid state. Additionally, we carried out in vivo experiments by treating the right paw of mice with BoNT-MNs and found that the treatment induced a significant reduction of sweating response in the mouse’s foot pads. Thus, BoNT/A treatment with microneedles is beneficial and may be used as a more efficient and less painful approach to treat hyperhidrosis.

PMID: 31613636 [PubMed – as supplied by publisher]

Is there any relationship between quality of life and the level of sympathectomy in primary palmar hyperhidrosis? Single-center experience.

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Is there any relationship between quality of life and the level of sympathectomy in primary palmar hyperhidrosis? Single-center experience.

Gen Thorac Cardiovasc Surg. 2019 Sep 21;:

Authors: Dogru MV, Sezen CB, Girgin O, Cansever L, Kocaturk CI, Metin M, Dincer SI

Abstract
BACKGROUND: The discussions at the surgical levels (sympathectomy levels) about endoscopic thoracic sympathectomy (ETS) method, which is applied in hyperhidrosis treatment in the present day and acknowledged as the golden treatment method, continue. Mainly, most of the studies evaluates postoperative early period results. Our aim in this study is to compare the long-term quality of life depending on the different surgical levels (sympathectomy levels) and evaluate the postoperative complications.
METHODS: 165 patients operated due to palmar hyperhidrosis between January 2012 and July 2017 were evaluated. Sympathectomy was performed either by clipping or cauterization and sympathetic nerves included were T2-4, T3-4, or T3 levels. Data were retrospectively reviewed for complications, factors affecting the postoperative quality of life.
RESULTS: Ninety of the patients were male (54.5%) and 75 (45.5%) were female. The level of ganglion block was T2-T4 in 62 patients (37.6%), T3-T4 in 46 patients (27.9%), and T3 in 57 patients (34.5%). Early complications were observed in 27 patients (16.4%). Compensatory hyperhidrosis (CH) was observed in 62 patients (37.6%). There was a significant difference in the postoperative quality of life according to ETS level (p < 0.001). Patients who underwent T2-T4 sympathectomy had a lower quality of life than patients who underwent isolated T3 or T3-T4 sympathectomy.
CONCLUSION: Based on our results, we recommend performing lower level resections to increase the long-term quality of life in palmar hyperhidrosis patients. The lower risk of CH and comparable quality of life suggest that T3 sympathectomy is more effective.

PMID: 31542862 [PubMed – as supplied by publisher]

Video-Assisted Bilateral Thoracoscopic Sympathotomy for Palmar Hyperhidrosis.

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Video-Assisted Bilateral Thoracoscopic Sympathotomy for Palmar Hyperhidrosis.

World Neurosurg. 2019 Sep 13;:

Authors: ReFaey K, Grewal SS, Segura-Duran I, Thomas M, Wharen RE

Abstract
In this video, we demonstrate a case of a 21-year-old right-handed male who presented with palmar hyperhidrosis. His symptoms started at the age of 4 and progressively worsened throughout his life. Multiple medical treatments were used without significant benefit. His symptoms worsened to the limit that it affected his work, and lifestyle. The patient was taken to the operating room in a supine position with both arms abducted 90 degrees. The right and left chest were prepped and draped in a sterile fashion. The skin incision was done on the left side first, the left lung was isolated and two 5 mm thoracoports were placed in the 6th and 3rd intercostal spaces, respectively. CO2 insufflation was used to pressure of 6 mmHg for exposure. The chest was visualized and the sympathetic chain was identified. Ribs were counted and then using cautery at a low setting was used. The sympathetic chain was transected at the level of the head of the 2nd rib. Accessory nerves of Kuntz were identified and resected. CO2 was then evacuated from the left chest using a bronchial tube exchanger and Valsalva maneuver. The lung was completely re-inflated and skin was closed in normal fashion. The same procedure was repeated on the right side. A chest X-ray was obtained intraoperatively, and no pneumothorax was observed. At the end of the procedure, both upper extremities temperature probes showed a significant increase from baseline. Informed patient consent was obtained.

PMID: 31525484 [PubMed – as supplied by publisher]

Primary hyperhidrosis prevalence and characteristics among medical students in Rio de Janeiro.

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Primary hyperhidrosis prevalence and characteristics among medical students in Rio de Janeiro.

PLoS One. 2019;14(9):e0220664

Authors: Ribeiro Santos Morard M, Betanho Martins R, Lopes Ribeiro AC, Guimarães Rocha Lima P, Dos Santos Carvalho B, Junior JCBS

Abstract
BACKGROUND: Hyperhidrosis is a pathological condition defined by excessive sweating beyond thermoregulatory physiological needs, which can cause substantial psychological impact and impairment of daily activities. Studies regarding its prevalence, however, are scarce and vary widely in their findings. The population of medical students is a particularly interesting subset for its recurring demand of physical contact during patient examination or procedures, and the potential for professional adversity. We aimed at furthering the comprehension of this disease prevalence and characteristics among medical students.
METHODS: Questionnaires inquiring about the presence and characteristics of Primary Hyperhidrosis (PH) were applied through either written or digital means to all eligible medical students enrolled in three Medical Schools in the State of Rio de Janeiro who agreed to take part in the study. Demographic data regarding gender, ethnicity, current age, weight and height was collected in addition to clinical data (sweat site, age of onset, familial history, severity and previous treatments). Severity was evaluated through the Hyperhidrosis Disease Severity Scale (HDSS) and a symptoms survey.
FINDINGS: Our response rate was roughly 1/3 of all eligible students (900/2700). PH prevalence was 20.56% (185/900). It was similar between men and women (23.08% and 19.41%, respectively) and strongly associated with family history of the disease (Prevalence Ratio of 4.27). Regarding ethnicity, of the total sample 73.78% (664/900) self-declared white, among which 19.28% (128/664) had PH. Mixed-race and other ethnicities encompassed 26.22% (236/900) of the sample, among which 24.15% (57/236) had PH. Most positive subjects (64.32%) presented associated forms of PH. Overall involvement of each site (both associated and isolated) was: 63.78% axillary, 50.81% palmar, 43.24% plantar, 20.54% craniofacial, 18.38% facial flushing and 2.16% gustatory sweating. Mean current age was 23.11(±4.04) years for PH patients, and age of onset was ≤18 years in 93.94% of cases. Regarding body mass index (BMI), 71.09% of PH patients had BMI<25kg/m2 and only 4.69% presented BMI≥30kg/m2, none ≥35kg/m2. Some degree of life quality impairment was reported by 89.20% of PH patients, and 23.89% had HDSS 3 or 4 (moderate to severe).
CONCLUSIONS: PH prevalence among Rio de Janeiro medical students was 20.56%, similar between men and women, predominating associated presentations, axillary, palmar and plantar sites, strong familial history, age of onset before 18 years, and some degree of life impairment.

PMID: 31518360 [PubMed – in process]

[Video-assisted thoracoscopic treatment for two ports for idiopathic palmar and axillary hyperhidrosis in children].

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[Video-assisted thoracoscopic treatment for two ports for idiopathic palmar and axillary hyperhidrosis in children].

Cir Pediatr. 2019 Jul 29;32(3):115-120

Authors: González López SL, Díaz Juárez M, Cabrera Machado CA, García González M, Cortiza Orbe GM, Quintero Delgado Z

Abstract
JUSTIFICATION: Primary hyperhidrosis is a benign disease that consists in the excessive production of sweat, mainly in the hands, axillas and feet. It may to interfere with the social and work life of the sufferer. It affects up to 3% of the population. In Cuba there are no epidemiological studies on its prevalence. One of the treatment modalities is videothoracoscopic sympathicotomy.
OBJECTIVES: To describe the results of the videothoracoscopic sympathicotomy technique for two ports using apneic oxygenation to achieve lung collapse.
METHOD: Descriptive, retrospective study of 27 cases operated by primary hyperhidrosis in the period from May 2015 to June 2018. Demographic and clinical characteristics of operated patients, results of the endoscopic surgical technique, postoperative complications and satisfaction were described.
RESULTS: The 27 patients were adolescents with ages ranging from 11 to 19 years old, it was more frequent in the female sex. All patients had total solution of the symptoms in the intraoperative period, demonstrated by the cessation of sweat in the palms or axillas and by the verification of the increase of the palmar temperature in the monitor. No patient had intraoperative complications. Compensatory sweating occurred in four patients and one had intercostal neuritis. 100% of the patients were satisfied with the result at 30 days of treatment.
CONCLUSIONS: It is a safe technique, with few complications, high satisfaction with the results and feasible to perform in pediatric hospitals with basic resources of minimal access surgery.

PMID: 31486302 [PubMed – in process]

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]

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]

Cryoanalgesia with a CoolSense Device in Patients Treated with Botulinum Toxin-A for Palmar-Plantar Hyperhidrosis: A Self-Controlled Study.

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Cryoanalgesia with a CoolSense Device in Patients Treated with Botulinum Toxin-A for Palmar-Plantar Hyperhidrosis: A Self-Controlled Study.

Skin Appendage Disord. 2019 Feb;5(2):119-120

Authors: Kanni T, Agiasofitou E, Markantoni V, Tzanetakou V, Katoulis A, Gregoriou S, Rigopoulos D, Kontochristopoulos G

PMID: 30815449 [PubMed]

[Impact of Selective Quality of Life Analysis in Patients with Local Hyperhidrosis after Sympathicus Clipping].

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[Impact of Selective Quality of Life Analysis in Patients with Local Hyperhidrosis after Sympathicus Clipping].

Zentralbl Chir. 2019 Feb 22;:

Authors: Schreiner W, Mykoliuk I, Dudek W, Sirbu H

Abstract
INTRODUCTION: Hyperhidrosis (HH) is associated with physical and psychological restrictions. The treatment includes both conservative and surgical methods and aims to permanently improve the quality of life (QoL) of those affected. Endoscopic sympathetic blockade (ESB) is an established surgical therapeutic method and is considered effective when conservative treatment options fail. The aim of our study was to comprehensively analyse the QoL alteration and patient satisfaction after ESB and to identify the corresponding influencing factors.
METHODS: From July 2008 to April 2016, 105 patients were operated for treatment-refractory HH. In all cases, an ESB was performed according to the HH form and the STS expert consensus (STS: Society of Thoracic Surgeons). QoL and hyperhidrosis status were selectively analysed pre- and postoperatively and evaluated using detailed questionnaires (a self-developed questionnaire, SF36, DLQI, Hyperhidrosis LQ (HidroQoL)). Statistical processing was performed with SPSS Statistics version 21.0.0.2 for Windows (Armonk, NY: IBM Corp.). Descriptive statistical analysis and nonparametric tests were used.
RESULTS: 105 patients who underwent bilateral ESB between July 2008 and April 2016 were evaluated: 73 women (69.5%) and 31 men (29.5%) with median age of 26 years (range: 16 - 64 years). Of the 105 patients who underwent bilateral ESB, 12 patients had focal Hyperhidrosis palmar and axillar (12.4%), 20 had Hyperhidrosis palmo-plantar (19.0%), 47 had Hyperhidrosis palmoplantar and axillar (44.8%), 11 had Hyperhidrosis axillar (10.5%), and 14 had Hyperhidrosis facial (13.3%). HydroQoL scores showed improvement in all forms of HH. All patient groups demonstrated improvement in DLQI, while the LQ analysis of SF36 showed an improvement in social functioning and mental well-being in all forms of HH other than HA. 86.7% of patients (n = 91) were satisfied with their postoperative outcome. Compensatory sweating (CS) was observed in 76.2% of cases (n = 80), without a clear LQ impact. No significant correlation between CS and the hyperhidrosis form was found.
CONCLUSIONS: ESB is associated with a long-time improvement in social functioning, psychological well-being, and high patient satisfaction. The onset of CS has no clear correlation to QoL and patient satisfaction.

PMID: 30795027 [PubMed – as supplied by publisher]