Introduction: Allergic rhinitis is a condition of high prevalence in the population and widely studied, with several treatments being consecrated for its control. Spirulina is a dietary supplement that modulates immune function, and has been shown to modulate the inflammatory response of allergic rhinitis. Purpose: To evaluate spirulina in the treatment and control of allergic rhinitis. Material and Methods: This is a systematic review of randomized clinical trials. Searches were performed for randomized clinical trials relating spirulina to allergic rhinitis in five electronic databases: Cochrane - Central Register of Controlled Trials - CENTRAL (2021), PUBMED (1966-2021), EMBASE (1974-2021), LILACS (1982-2021) AND SCOPUS (2021). Two investigators independently extracted data and assessed trial quality. Results: Two clinical trials involving a total of 215 patients were included. Both studies assessed the efficacy of spirulina in improving allergic rhinitis as the primary outcome. The first study described a significant reduction in runny nose, nasal congestion and itching over time of medication use (p 0.001) and in the second study the prevalence of rhinorrhea (P = 0.021), nasal congestion or obstruction (P = 0.039) and decreased smell (P = 0.030) were significantly less in the experimental group than in the control group. Conclusions: The included studies were in favor of the use of spirrulina. However, the level of evidence is very low and limited. We should have caution due to the small number of clinical trials and participants in these studies. It is recommended to carry out new RCTs following the CONSORT standardization.
INTRODUCTIONVestibular migraine is the main cause of episodic vertigo and the second most common cause of dizziness in adults. Treatment for vestibular migraine encompasses the prevention of crises and the control of acute symptoms.Flunarizine works by preventing the contraction of labyrinthine vessels and altering blood flow, thus preventing symptoms. Due to the high prevalence of the disease, its negative impacts on individual health and increased expenditure on public health, preventive pharmacological and non-pharmacological treatment must be implemented early.PURPOSETo evaluate the efficacy of Flunarizine as a preventive for migraine and vestibular crises compared to other preventive drugs.MATERIAL AND METHODSScientific articles were searched in the databases using the terms (vestibular migraine OR migrainous vertigo) AND (flunarizine) AND (prophylaxis). Subsequently, a systematic literature review and meta-analysis was performed, including 3 randomized clinical trials comparing flunarizine and other preventive drugs in terms of efficacy and safety for preventing migraine vertigo attacks. The studies were analyzed using a ROB table, analysis using the GRADE method and meta-analysis.RESULTSQualitatively, the analysis showed that flunariniza was positive for decreasing the frequency of vertigo in cases of vestibular migraine, with a moderate degree of evidence, a relative risk of 0.34 and a confidence interval of 0.15 to 0.76.CONCLUSIONSThere are few studies available in the scientific literature on the use of flunarizine in vestibular migraine, many of which are heterogeneous among themselves, mainly in the way of evaluating and monitoring patients, carried out mainly through subjective methods.The meta-analysis showed a positive result for flunarizine as a preventive drug for the studied population. Furthermore, in all the studies analyzed, no serious side effects resulting from the use of the medication were reported, which makes it safe for patients to use.Flunarizine is a good drug for the prevention of vestibular migraine, especially in reducing the number of attacks, with a good level of evidence.
OBJECTIVE: The purpose is to evaluate the effectiveness and safety of intranasal cinnamon extract (CE) in the management of patients with allergic rhinitis (AR). METHODS: This is a systematic review, using the standard methodological procedures recommended by Cochrane to search six databases: Cochrane, PUBMED, EMBASE and LILACS, from database inception up to May 2020, to identify randomized controlled trials evaluating the use of CE in treatment for AR. RESULTS: We included two trials involving a total of 100 participants. The studies were at low risk of bias. All studies had similar participant selection criteria and outcome measurement, enabling a meta-analysis. Both studies used a validated instrument (Rhinoconjunctivitis quality of life questionnaire – RQLQ) for this primary outcome (SMD -1.06; 95% confidence interval (CI) -1.58 to -0.59, P <0.0001). . All studies resulted in at least some clinical benefit with the use of CE compared to placebo. None of the included studies reported any significant adverse effects. CONCLUSION: Despite the evidence from two studies showed certain positive effects of response for CE under evaluation in treatment of AR. We found no evidence regarding the effectiveness of cinnamon bark extract for allergic rhinitis. Well-conducted randomized clinical trials using CE are needed to further advance our understanding of the effectiveness of AR.
OBJECTIVE: To evaluate the efficacy and safety of Venlafaxine for the control of vestibular migraine (VM). METHODS: This is a systematic review of randomized clinical trials. The following databases were searched: PUBMED (1966-2021), EMBASE (1974-2021) and CENTRAL (Cochrane Library-2021). There was no geographic and period limitation in the survey. Data extraction and study quality assessment were carried out by two independent researchers. RESULTS: The search strategy identified 47 studies, of which 2 were included in this review, as they met the inclusion and exclusion criteria. Both evaluated the efficacy of venlafaxine in vestibular migraine, comparing the results with other drugs. The first study (2017) compared the effect of venlafaxine with flunarizine and valproic acid, while the second study (2015) compared the efficacy of venlafaxine with propranolol. Both showed improvement of vestibular symptoms in all groups evaluated, but only the groups submitted to treatment with venlafaxine showed a significant change in the emotional DHI (Dizziness Handicap Inventory) score and improvement in depressive symptoms. CONCLUSIONS: Although venlafaxine appears to have promising results, there is currently a scarcity of studies that allow currently to assess the efficacy and safety of the drug for the treatment of vestibular migraine. The evidence is quite limited, the number of studies and patients evaluated reduced, and it is recommended to conduct new quality randomized clinical trials to elucidate the issue.
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