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Factors Impacting Outcome and Prognosis of Invasive Fungal Sinusitis: How Vital is Iron Metabolism?

Prankur VermaKapil SikkaHitesh VermaRakesh KumarAlok ThakarManish SonejaVishwajeet Singh
Published in: Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India (2024)
Iron is an important micronutrient involved in cell biology through vital reactions. We examined the correlations between iron metabolism parameters and the course of invasive fungal sinusitis. Patients with invasive fungal sinusitis were enrolled. Serum iron and ferritin levels, total iron-binding capacity, and transferrin saturation were measured at the initiation of treatment. Patients were followed for 6 months, and the clinical course was categorised as improvement or worsening/death. A total of 35 patients were enrolled. The average ferritin levels in mucormycosis patients was 944.9 ng/ml, versus 110.7 ng/ml for aspergillosis patients. Iron levels were significantly lower in mucormycosis than in aspergillosis (29.14 µg/dl vs. 68.55 µg/dl). Total iron-binding capacity was significantly different between the two groups (16.76 µg/dl vs. 330.36 µg/dl). After 6 months, improvement, worsening, and death were noted for 18, 8, and 9 patients, respectively. Higher iron levels and lower ferritin levels were linked with improvement. Total iron-binding capacity was significantly higher in improved patients (2314 vs. 151). Iron metabolism parameters play significant roles in the preemptive judgment of the course of fungal sinusitis. Based on these findings, studies on drugs affecting iron metabolism should be conducted.
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