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Compare the results obtained with video-assisted sympathectomy performed in two distinct levels ganglionic (third versus fourth thoracic ganglion) for the treatment of palmar hyperhidrosis, through a blind randomized clinical trial using an objective method to measure the sweat before and after the operation.
Currently, the treatment of choice for treating palmar hyperhidrosis (PH) is video-assisted thoracic sympathectomy (VATS) . This minimally invasive technique has been well standardized and provides adequate results with low morbidity.
The main side effect of VATS is compensatory hyperhidrosis (CH). This is present in most cases and is considered the greatest cause of dissatisfaction. To reduce the risk of CH, various studies have been conducted to compare different levels of ganglion resection. These studies have been based on subjective quantification of sweating (assessment of sweating reported by patients) and on the application of quality-of-life questionnaires.
Recently, tests for the objective evaluation of sweating have been developed to quantify sweating among patients with various diseases, including PH. So far, there have not been any studies comparing the long-term results of thoracic sympathectomy on the third ganglion (G3) versus the fourth ganglion (G4)with objective evaluation to quantify sweating.
The present study was prospective, randomized and blinded, with the objective of comparing the results from VATS at two different resection levels: G3 versus G4. All the patients were followed over a one-year period, and their palmar sweating was quantified using a portable device (VapoMeter) to measure transepidermal water loss (TEWL). In addition, CH was evaluated by applying a specific quality-of-life questionnaire.
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
Faculty of Medicine - University of São Paulo.
University of Sao Paulo
Published on BioPortfolio: 2014-07-23T21:08:50-0400
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Endoscopic surgical procedures performed with visualization via video transmission. When real-time video is combined interactively with prior CT scans or MRI images, this is called image-guided surgery (see SURGERY, COMPUTER-ASSISTED).
Endoscopic surgery of the pleural cavity performed with visualization via video transmission.
Sympathectomy using chemicals (e.g., 6-hydroxydopamine or guanethidine) which selectively and reversibly destroy adrenergic nerve endings while leaving cholinergic nerve endings intact.
Used with articles which include video files or clips, or for articles which are entirely video.
Excessive sweating. In the localized type, the most frequent sites are the palms, soles, axillae, inguinal folds, and the perineal area. Its chief cause is thought to be emotional. Generalized hyperhidrosis may be induced by a hot, humid environment, by fever, or by vigorous exercise.
In a clinical trial or interventional study, participants receive specific interventions according to the research plan or protocol created by the investigators. These interventions may be medical products, such as drugs or devices; procedures; or change...