2004
DOI: 10.1590/s0034-70942004000600010
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Uso do azul de metileno no tratamento de choque anafilático durante anestesia: relato de caso

Abstract: Histamine is the major anaphylaxis mediator. Inducing nitric oxide (NO) production, it consequently increases guanylate cyclase, which promotes arteriolar vasodilation by increasing cyclic GMP. Methylene blue may be helpful in such situations because it inhibits guanylate cyclase and consequently vasodilation, resulting in hemodynamic improvement.

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Cited by 14 publications
(3 citation statements)
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References 9 publications
(19 reference statements)
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“…Overall, 39 reports were found to be relevant to the research question. Of these, 3 were randomized controlled trials [11], [12], [13], 5 were prospective studies [14], [15], [16], [17], [18], 4 were case reports [10], [19], [20], [21], 25 were retrospective (registry) studies [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], and 2 were meta-analyses [47], [48].…”
Section: Methodsmentioning
confidence: 99%
“…Overall, 39 reports were found to be relevant to the research question. Of these, 3 were randomized controlled trials [11], [12], [13], 5 were prospective studies [14], [15], [16], [17], [18], 4 were case reports [10], [19], [20], [21], 25 were retrospective (registry) studies [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], and 2 were meta-analyses [47], [48].…”
Section: Methodsmentioning
confidence: 99%
“…A number of case reports describe use of methylene blue for the treatment of refractory anaphylaxis [202][203][204][205][206]. Methylene blue may prevent PAF-mediated anaphylaxis by blocking nitric oxide (NO)-mediated vascular smooth muscle relaxation [207].…”
Section: Treatmentmentioning
confidence: 99%
“…MB has bacteriostatic, antiviral and antifungal effects and acts on vascular musculature. 20,21 Additionally, MB, when excited by red light, produces oxygen "singlet". Still, it presents the advantage of being low cost, easy to acquire and causes little damage to the patient.…”
Section: Introductionmentioning
confidence: 99%