Atypical headache by isolated sphenoid fungal sinusitis: A rare case.

Introduction: Fungal sphenoiditis is a rare case in clinical practice. Usually affecting just one sinus, Aspergillus is the most common cause of fungal sinusitis. Atypical headache with unresponsive to analgetics is one of symptom from Isolated Sphenoid sinusitis.

Hyperuricemia as a Risk Factor for Atrial Fibrillation Due to Soluble and Crystalized Uric Acid.

Among the several independent risk factors for atrial fibrillation (AF), hyperuricemia has been widely accepted as associated with the incidence of paroxysmal or persistent AF, as well as with the risk of AF in patients undergoing cardiovascular surgery. The electrophysiological mechanism of AF involves electrical remodeling of the arrhythmogenic substrate and abnormal automaticity as trigger. Both electrical and structural remodeling mediated by oxidative stress derived from either xanthine oxidoreductase (XOR), soluble uric acid (UA) or monosodium urate (MSU) crystals might be plausible explanations for the association of AF with hyperuricemia.