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Case Report: Paroxysmal hyperhidrosis as an initial symptom in a patient with anti-LGI1 encephalitis

Front Immunol. 2022 Sep 23;13:986853. doi: 10.3389/fimmu.2022.986853. eCollection 2022.

ABSTRACT

Anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis is the second most common cause of autoimmune encephalitis and is characterized by cognitive impairment, psychiatric disorders, and faciobrachial dystonic seizures. In recent decades, literature reports have expanded the phenotypic spectrum associated with the LGI1 autoantibody. The present report describes the case of a 58-year-old man who presented with repetitive unilateral hyperhidrosis of the body and arm as an initial symptom and gradually developed psychiatric symptoms, involuntary movements of the face and arms, and progressive cognitive decline. Anti-LGI1 antibodies were positive in both the serum and cerebrospinal fluid at approximately 2 months after symptom onset, and the patient was, therefore, diagnosed with anti-LGI1 encephalitis. His symptoms, namely hyperhidrosis and involuntary movements, were not relieved by antiepileptic drug treatment, but responded favorably to high-dose steroid therapy and intravenous immunoglobulin. We interpreted the repetitive unilateral hyperhidrosis as possible epilepsy. Based on this case, unilateral hyperhidrosis of the body and arm as a rare neurological presentation can be added to the phenotypic spectrum of anti-LGI1 encephalitis, and early recognition of this manifestation might support timely diagnosis and treatment.

PMID:36211373 | PMC:PMC9537696 | DOI:10.3389/fimmu.2022.986853

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Cannabinoids in hyperhidrosis

J Dermatolog Treat. 2022 Oct 6:1-6. doi: 10.1080/09546634.2022.2127308. Online ahead of print.

ABSTRACT

Hyperhidrosis can significantly curtail patient quality of life, from debilitating physical symptoms to social stigmatization and reduced life opportunities. Current treatments often prove unsatisfactory, especially in sufferers of generalized hyperhidrosis. In this open trial, we present the case of a refractory generalized hyperhidrosis treated with cannabinoids. We found a remarkable reduction in the volume of sweat and an improvement to the patient’s quality of life using this novel low-cost and low-impact approach.

PMID:36200741 | DOI:10.1080/09546634.2022.2127308

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Skin temperature response to thermal stimulus in patients with hyperhidrosis: A comparative study

J Therm Biol. 2022 Oct;109:103322. doi: 10.1016/j.jtherbio.2022.103322. Epub 2022 Sep 7.

ABSTRACT

Primary hyperhidrosis (HH), the excessive sweating exceeding physiological demand, has been associated to a complex dysfunction of the autonomic nervous system which may explain the disfunction in sweating but may also cause unrevealed alterations in skin blood flow regulation. In fact, HH patients present a sympathetic over-function with less reflex bradycardia in response to the Valsalva maneuver and higher sympathetic skin responses. We aimed to identify response patterns to room thermal stimulus in HH patients compared to a control group in order to investigate putative differences in blood flow assuming that skin temperature in glabrous (non-hairy) areas reflect the sympathetic tone in arteriovenous anastomoses (AVAs). Infrared thermography images were obtained from a cohort of patients diagnosed with HH, followed at a hospital pediatric surgical department and to a sex- and age-matched control group of patients admitted for other surgical procedures. With the participants in Fowler’s position, a set of 3 images were captured simultaneously and 44 regions of interest were analyzed, distributed on the palms of the hands, soles of the feet, axilla, and inner canthus. After an acclimatization period at 20 °C, the room temperature was increased to 24, 28 and 32 °C to obtain similar sets of thermograms. A total of 37 patients with HH and 16 participants in the control group were included in the study. At baseline (20 °C), body core temperature (measured in the inner canthus) was significantly higher in the HH patients compared to the controls (p = 0.019 and p = 0.003 in right and left inner canthi, respectively), without any significant differences in the other thermograms. When room temperature was increased, differences in core temperature disappeared, while differences appeared in axilla and palms of the hands with HH patients presenting significantly lower temperature at the three thermal stimulus stages. Patients with HH presented a lower thermoregulatory response when submitted to room temperature increase, which may reflect a vasomotor sympathetic over-function in AVAs.

PMID:36195389 | DOI:10.1016/j.jtherbio.2022.103322

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Percutaneous radiofrequency sympatholysis in the treatment of primary palmar hyperhidrosis: A retrospective case-controlled study of rib-based anatomical targeting

J Vasc Interv Radiol. 2022 Sep 28:S1051-0443(22)01216-7. doi: 10.1016/j.jvir.2022.09.020. Online ahead of print.

ABSTRACT

PURPOSE: To compare the efficacy, adverse reactions, quality of life and patient satisfaction of percutaneous radiofrequency (RF) thoracic sympatholysis at different rib-based anatomical targets for primary palmar hyperhidrosis (PPHH).

MATERIALS AND METHODS: Patients with PPHH were divided according to the target, namely, the upper edge (group U) and the lateral border (group L) of the fourth rib; there were 30 patients (mean age 24.9 years; 31, 51.7% female) and 60 cases in each group. The Hyperhidrosis Disease Severity Scale (HDSS) and Dermatology Life Quality Index (DLQI) were assessed.

RESULTS: From before RF to 12 months after RF, the proportion of patients with HDSS grades III and IV (100% to 26.7%) and the DLQI (19.78±5.08 to 4.98±4.18) decreased significantly (P <.001). At 3, 6 and 12 months after RF, the HDSS grades were better in group L than in group U (P = .005, .002 and .004). At 6 and 12 months after RF, the DLQI in group L was lower than that in group U (P= .012 and .016), and at 1, 6 and 12 months after RF, patient satisfaction was higher than that in group U (P= .025, .014 and .009). Adverse events were mild; 8 patients (13.3%) demonstrated compensatory hyperhidrosis at 12-months after RF, and there was no difference between the two groups (P=.448); neuralgia and pneumothorax also did not differ (P= .522, and .643).

CONCLUSION: RF sympatholysis targeting the lateral border of the fourth rib had higher efficacy, better quality of life, and higher patient satisfaction.

PMID:36182001 | DOI:10.1016/j.jvir.2022.09.020

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Hidradenitis Suppurativa: Absence of Hyperhidrosis but Presence of a Proinflammatory Signature in Patients’ Sweat

Acta Derm Venereol. 2022 Sep 28. doi: 10.2340/actadv.v102.2731. Online ahead of print.

ABSTRACT

The role of sweat glands in hidradenitis suppurativa has been largely neglected, despite the fact that its original designation, as “hidrosadénite phlegmoneuse”, implied an inflammatory malfunction of the apocrine sweat glands as the underlying pathogenic driver. The aim of this study was to evaluate the role of apocrine sweat glands with respect to the proinflammatory environment of hidradenitis suppurativa. Therefore, gravimetric assessment and multiplex cytokine assays from sweat obtained from patients with hidradenitis suppurativa along with immunofluorescence cytokine/chemokine analysis of lesional apocrine glands-bearing hidradenitis suppurativa skin were performed. Gravimetric assessment of 17 patients with hidradenitis suppurativa revealed that the condition is not associated with hyperhidrosis. However, patients seem to be more affected by subjective sweating. The current data identified a complex proinflammatory signature in hidradenitis suppurativa sweat characterized by a significant upregulation of monocyte chemoattractant protein-1, interleukin-8 (CXCL8), and interferon-γ. In agreement with this, a strong in situ expression of these mediators could be observed in apocrine glands of lesional hidradenitis suppurativa skin. These data shed new light on the proinflammatory capacity of apocrine sweat glands in hidradenitis suppurativa, which may lead to reconsideration of the role of sweat glands in hidradenitis suppurativa pathology.

PMID:36172698 | DOI:10.2340/actadv.v102.2731

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Long-term Outcomes of Endoscopic Thoracoscopic Sympathectomy for Primary Focal Palmar Hyperhidrosis: High Patient Satisfaction Rates Despite Significant Compensatory Hyperhidrosis

Surg Laparosc Endosc Percutan Tech. 2022 Sep 5. doi: 10.1097/SLE.0000000000001100. Online ahead of print.

ABSTRACT

BACKGROUND: Endoscopic thoracoscopic sympathectomy (ETS) is the gold standard therapy for primary focal palmar hyperhidrosis (PFPH), resulting in high patient satisfaction rates. The most common side effect of ETS is compensatory hyperhidrosis (CH). Previous studies followed patients’ satisfaction degree of surgery and the incidence of CH during a limited follow-up period of 1 to 3 years. The purpose of this study was to investigate the long-term outcomes and patient satisfaction after ETS.

MATERIALS AND METHODS: After approval of our institutional review board, we conducted a retrospective review of all consecutive patients who underwent ETS for PFPH at our institution between 1998 and 2019. Electronic medical records were reviewed for short-term outcomes. Long-term outcomes were collected through telephone questionnaires. Primary outcome was the resolution of PFPH. Secondary outcomes were CH and long-term patient satisfaction.

RESULTS: During the study period, 256 patients underwent ETS to treat primary focal palmar hyperhidrosis at our institution between the years 1998-2019. One-hundred and fifty (58.6%) patients agreed to participate in the study and were included in the final analysis. The mean age was 23.8 (17 to 58) years, 56% were females. The mean follow-up time was 11±6.1 (1 to 22) years. Ninety-four percent reported resolution of PFPH; however, CH was reported by 90% of participants. CH decreased mean patient satisfaction score from 4.8±0.5 to 3.8±2 (P=0.009). This effect was more pronounced in patients with CH of the head and neck (P=0.009). Patients’ satisfaction decreased over time from a mean of 4.8±0.4 in the first year after surgery to a mean of 3.7±1.4 12 years or more after surgery (P <0.001). Despite this, 79% of patients reported they would recommend ETS to other patients.

CONCLUSIONS: ETS for PFPH is highly effective and results in high patient satisfaction rates even after long-term follow-up. Despite high rates of postoperative CH, nearly 80% of patients would still recommend the procedure to fellow patients, justifying its reputation as the gold standard treatment for PFPH.

PMID:36130719 | DOI:10.1097/SLE.0000000000001100

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A Pilot Study of the Safety and Effectiveness of a Novel Device in Subjects With Axillary Hyperhidrosis

Dermatol Surg. 2022 Sep 20. doi: 10.1097/DSS.0000000000003598. Online ahead of print.

ABSTRACT

BACKGROUND: One-third of U.S. adults are bothered by excessive sweating and 5% suffer from hyperhidrosis, both of which negatively affect quality-of-life (QoL). A single-use disposable patch using the novel targeted alkali thermolysis (TAT) technology is being developed to address this condition.

OBJECTIVE: Assess the efficacy and safety of the TAT patch for the treatment of excessive sweating using a randomized, double-blind, sham-controlled study design.

MATERIALS AND METHODS: Adults with Hyperhidrosis Disease Severity Scale (HDSS) scores of 3 or 4 (n = 16) were treated with an active or sham patch for up to 3 minutes (as established in a previous unpublished feasibility study) and evaluated weekly for 6 weeks post-treatment. The primary effectiveness measure was improved HDSS at Week-4.

RESULTS: The study met its objective. For the primary efficacy measure, 83% of TAT-treated subjects reported HDSS scores of 1 or 2 at Week-4 versus 0% of sham-treated subjects (p = .0032). Furthermore, 67% of TAT-treated subjects had a 2-point improvement in HDSS scores versus 0% of sham-treated subjects (p = .0123). Quality-of-life improvement correlated with HDSS. The TAT patch seemed to be well-tolerated; one transient moderate adverse event that resolved without sequelae was reported.

CONCLUSION: The TAT patch successfully demonstrated efficacy and was well-tolerated.

PMID:36129240 | DOI:10.1097/DSS.0000000000003598

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Relationship between hyperhidrosis and hypothalamic injury in patients with mild traumatic brain injury

Medicine (Baltimore). 2022 Sep 16;101(37):e30574. doi: 10.1097/MD.0000000000030574.

ABSTRACT

Hyperhidrosis is clinical symptom of various diseases and is an important clinical feature of paroxysmal sympathetic hyperactivity (PSH). Traumatic brain injury (TBI) is known to be most common condition associated with PSH, and PSH has been mainly reported in moderate and severe TBI. However, very little has been reported on PSH or hyperhidrosis in mild TBI patients. In this study, we used diffusion tensor imaging (DTI) to investigate the relationship between hyperhidrosis and hypothalamic injury in patients with mild TBI. Seven patients with hyperhidrosis after mild TBI and 21 healthy control subjects were recruited for this study. The Hyperhidrosis Disease Severity Scale was used for evaluation of sweating at the time of DTI scanning. The fractional anisotropy and apparent diffusion coefficient DTI parameters were measured in the hypothalamus. In the patient group, the fractional anisotropy values for both sides of the hypothalamus were significantly lower than those of the control group (P < .05). By contrast, the apparent diffusion coefficient values for both sides of the hypothalamus were significantly higher in the patient group than in the control group (P < .05). In conclusion, we detected hypothalamic injuries in patients who showed hyperhidrosis after mild TBI. Based on the results, it appears that hyperhidrosis in patients with mild TBI is related to hypothalamic injury.

PMID:36123888 | DOI:10.1097/MD.0000000000030574