ABSTRACT
Background and Aim: The COVID-19 virus has influenced the whole world since late 2019 and has affected millions of people. The combination of hydroxychloroquine (HQ) and azithromycin (AZ) has entered the protocols worldwide to reduce virus replication and take advantage of its immunomodulatory effects.The frequency of QTc prolongation in combinational drug use, and its effect on the primary endpoint, as well as the predictive values of QTc prolongation are not clear. Methods: The study was designed as a single-center, retrospective study. 135 patients who received hydroxychloroquine, azithromycin and oseltamivir for suspected/definitive COVID-19 with viral pneumonia were examined. Results: The mean age was 55.6±19.1 years and 61 (45%) patients were female. According to the initial ECG values, the QTc1 value was found to be 422.44±35.72 ms, while the QTc2 value was 446.91±35.72 ms (p<0.001). The ECG evaluation after medication use indicated that the number of patients with a QTc value >500 ms was 9 (6.6%). The number of patients with prolongation in QTc values >60 ms was 11 (8.1%). The sum of frequency of prolongation in QTc was 16.2% in intensive care unit patients, when the frequency was 1.5% in low-risk patients in the inpatient unit. An elevation in troponin values >14 ng/L and a low GFR are predictors for QTc prolongation. None of these patients developed a malignant arrhythmia or sudden cardiac death. Conclusions: Hydroxychloroquine and azithromycin combinations used in COVID-19 patients cause a prolongation in the QTc. The incidence of prolongation in QTc varies according to the comorbid characteristics and clinical status of the patients. Before starting hydroxychloroquine and azithromycin, the risk factors and clinical status of the patients should be well evaluated.
ABSTRACT
The COVID-19 outbreak is a global public health problem, the disease has spread exponentianally since the end of December 2019, when the first cases of SARS-CoV-2 infection were detected in Wuhan, China. Fever is the most common presentation, seen in approximately 88% of cases, cough (68%), vomiting (5%), and diarrhea (3.8%) are the other common symptoms.In this case report we are presenting a 34-year-old male patient who was admitted to the emergency department with fever that had been ongoing for 3 days. Initial diagnostic work up including computerized tomography (CT) scan documented was compatible with viral pneumonia and the 12 lead electrocardiogram (ECG) showed a Brugada -type I pattern,ST segment elevation in the right pericordial leads with no resiprocal changes. The patient had no chest pain, or syncope and family history of sudden cardiac death. Cardiac enzymes were normal;echocardiographic examination demonstrated normal wall motions and there weren't any pericardial effusion. The patient was admitted with a diagnosis of COVID-19 pneumonia, which was affirmed with positive nasopharengeal swab test for COVID-19. Brugada syndrome is a rare disease manifested by ST-segment elevation in the right precordial leads. Fever may cause Brugada-like changes in the ECG. With reduce of the fever, the Brugada-like ECG changes had also disappeared.