Diagnostic Use of Serum Ferritin as a Predictor of Hospital Outcome at Admission in Patients with Infective Endocarditis
Mahmoud Radwan Ali Hassan *
Cardiovascular Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
Mona Adel ELSaidy
Cardiovascular Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
Mai A. ELmonem Salama
Cardiovascular Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
Amr Fayez Alkassas
Cardiovascular Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
*Author to whom correspondence should be addressed.
Abstract
Background: Infective endocarditis (IE) is characterised by a concentration of infection inside the heart; it is caused by a bacterial or fungal infection of the endocardial surface of the heart; and it is linked with substantial morbidity and death.The aim of this research was to assess serum ferritin as an admission predictor of in-hospital prognosis in subjects with IE.
Methods: This case control researchincluded60subjects diagnosed with IEon the basis of the modified duke's criteria.Subjects were allocated equally into two groups: group I: IE subjects who were further subdivided into two groups based on presence or absence of major adverse cardiovascular events (subgroup A: 19 patients who showed IE complications or major adverse cardiac events during hospitalization and subgroup B: 11 patients who showed a smooth course during hospitalization without major adverse cardiac events or IE complications) and IE subjects as well as age and sex matched 30 healthy subjects.
Results: serum ferritin level were significantly increased in group I than group II (P value<0.05). Serum ferritin level was significantly increased in subgroup A than subgroup B (P value<0.001). serum ferritin can significantly predict bad outcome (P value<0.001) with AUC of 0.964 (95% CI: 0.881 – 0.995). At cut off >1200, serum ferritin can significantly predict bad outcome with 94.44% sensitivity, 92.86% specificity, 85% PPV and 97.5% NPV.
Conclusions: Serum ferritin was significantly increased in IE subjects who experiencedproblems on admission as compared to IE subjects who didn’t.
Keywords: Serum ferritin, infective endocarditis, echocardiography