Fréo B. Oral manifestations of chronic kidney disease patients-correlations with depression and anxiety levels, oral health perception and quality of life [thesis].
Burning mouth syndrome (BMS) is characterized by an oral burning sensation, with no corresponding clinical signs or laboratory abnormalities. The etiology is unknown, and there was no satisfactory treatment available. The objective of this study was to evaluate the effectiveness of topical use of capsaicin, as an alternative therapy in a group of BMS patients, as well as to correlate anxiety and depression levels to response to the therapy applied. Twenty BMS individuals in accordance to the terms to informed consent comprised the study group. Fifteen subjects were allocated to the test group (TG) and were treated with capsaicin, in daily applications for three weeks, one-week interval and an additional treatment cycle of four weeks. The control group (CG) was treated with the cream base used as a vehicle of capsaicin preparation, during the same period. All patients were examined 30 days after discontinuation of the medication. Results were assessed through a visual analogue scale (VAS) and a questionnaire on the global perceived effect (GPE). The average symptoms intensity before treatment, on EVS, was 5.1 (TG) and 4.4 (CG). At the fourth week control, TG presented reduction on the level of symptoms (EVS = 3.6), while CG presented an increase of symptoms intensity (VAS = 4.8). In the TG, between fourth and eighth week of follow-up, symptoms decreased around 8.3%, and between the eighth and twelfth week there was an increase of 13.5% on symptoms intensity. In the CG it was registered 22.8% of worsening (EVS = 5.75) between the beginning of the study and the twelfth week of control. On GPE assessment, six patients (40%) of TG and one patient of CG (20%), presented some relief of symptoms; four patients TG (26.6%) reported total remission of symptoms after treatment with capsaicin and one patient (20%) of control; three patients of TG and two of the CG remained unaltered. There were reports of worsening in two patients (13.3%) of TG and one (20%) of the CG. Eight patients of TG showed a high level of anxiety and seven moderate levels. In CG one patient presented low level, three showed a moderate level and one was ranked as having a high level of anxiety. CES-D suggested traits of depression in ten patients (66.6%) of TG and 40% (2) of the CG. We concluded that capsaicin is effective in controlling the burning symptom of BMS, suggesting some correlation with initial symptoms intensity and the maintenance of drug use. Moreover, there was some correspondence between high levels of anxiety and traits of depression, but it was not perceived influence of these aspects to the therapeutic response.
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