Background The long QT syndrome (LQTS) is a disorder of myocardial repolarization characterized by a prolonged QT interval on the electrocardiogram (ECG). This syndrome is associated with an increased risk of polymorphic ventricular tachycardia, a characteristic life-threatening cardiac arrhythmia also known as torsades de pointes. A rate related corrected QT interval (QTc) can be calculated as QT/√RR and normally is ≤0.44s. Some references given QTc upper normal limits as 0.43s in men and 0.45s in female. OP compound supposed to block K+ channel and Na+/Ca++ channel and hence causing prolongation of QT interval. As we know that prolongation of QT interval may precipitate polymorphic ventricular tachycardia and sudden cardiac death, so it become important in case of OP poisoning and related mortality. In this study, I calculated corrected QT interval in diagnosed cases of OP poisoning admitted at Bir Hospital and compared QTc among those with complications and without complication. I also tried to evaluate QTc as a predictor for duration of hospital stays, ICU admission, vasopressor and mechanical ventilation requirement, higher POP score and low GCS.
There is hardly any report of reinfection due to coronavirus disease 2019 (COVID-19) in medical professionals from Nepal. We report a case of a 32-year-old doctor with COVID-19 reinfection. Symptoms during the first infection were mild. After one month, he was reinfected and developed diarrhea as well as a continuous high fever. His d-dimer and ferritin were much increased. Computed tomography chest showed bilateral lymph nodes, minimal pleural effusion, and scattered linear fibrosis. After discharge, his depression and myalgia persisted for one month. During reinfection, his symptoms were more severe and cost of treatment was almost eight times his monthly salary and he could not work for six weeks. Possible reasons for severe reinfection and differential diagnoses like cytokine storm, multisystem inflammatory syndrome, reactivation of COVID-19, and infection due to new variants were discussed. Whether infected or vaccinated or not, all should take recommended vaccination and primary-preventive as well as health-promotive measures.
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