Dahili Tıp Bilimleri Bölümü

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Evaluation of Clinical, Biochemical, and Demographic Characteristics of Paediatric COVID-19 Patients Admitted to Dicle University Hospital
(Cureus, 2023) Orhan, Özhan; Akay, Cihan; Şen, Velat
Introduction and aim: In this study, we aim to determine how laboratory parameters were related to the clinical courses of patients admitted to the Dicle University Faculty of Medicine Department of Paediatrics and Paediatric Intensive Care Unit with COVID-19 diagnoses from March 2020 to November 2021. Materials and method: Clinical, biochemical and demographic characteristics of 220 patients between 0 and 16 years old with COVID-19 diagnoses at admission were analysed retrospectively. Results: We found that 57.3% of patients were male and 42.7% female, with a mean age of 107.8 ± 65.5 (range 1-192) months. Of the cases, 48.6% (n = 107) were asymptomatic, 35.5% (n = 78) were mild, 11.8% (n = 26) were moderately severe and 3.6% (n = 8) were severe. The patients’ site of admission, mortality rates, C reactive protein (CRP), lactate dehydrogenase (LDH), ferritin, and fibrinogen levels differed significantly (p < 0.001). Conclusion: It is important to learn about the clinical course of the disease by accurately interpreting the results of blood parameters and appropriate imaging studies.
The Importance of Frontal QRS-T Angle in Predicting the Effectiveness and Success of Thrombolytic Therapy in Patients With Acute Pulmonary Embolism
(Cureus, 2023) Durgun, Mehmet; Karahan, Mehmet Zülkif
Objective: The frontal QRS-T angle (fQRS-T) is associated with myocardial ischemia and ventricular arrhythmias. On the other hand, acute pulmonary embolism (APE) is a major risk factor for cardiac adverse events. This research aimed to determine whether the fQRS-T, a marker of ventricular heterogeneity, can be used to predict successful thrombolytic therapy in patients with APE. Methods: This was a retrospective observational study. Patients diagnosed with APE and hospitalized in the intensive care unit between 2020 and 2022 were included in the research. A total of 136 individuals with APEs were enrolled in this research. The patients were divided into two groups: thrombolytic-treated (n=64) and non-treated (moderate to severe risk, n=72). An ECG was conducted for each patient, and echocardiography was performed. Results: The mean age of the thrombolytic group was 58.2±17.6 years, with 35 females (55.1% of the group) and 29 males (44.9%). The non-thrombolytic group had a mean age of 63.1±16.2, with 41 females (56.5%) and 31 males (43.5%). Respiratory rate, heart rate, and fQRS-T were higher in the thrombolytic group, and oxygen saturation ratio and systolic and diastolic blood pressure were higher in the non-thrombolytic group (p=0.006, p<0.001, p=0.021; p<0.001, p=0.015, p<0.001, respectively). In the thrombolytic therapy group, comparing pre- and post-treatment ECG data revealed a statistically significant change in the fQRS-T value (p=0.019). Conclusion: The fQRS-T may provide important clues for the successful treatment of APEs
Non-Dipper Blood Pressure Impact on Coronary Slow Flow in Hypertensive Patients With Normal Coronary Arteries
(Cureus, 2023) Özen, Kaya; Karahan, Mehmet Zülkif
Objective: Coronary slow flow (CSF) is linked to myocardial ischemia, malignant arrhythmias, and cardiovascular mortality. On the other hand, hypertension (HTN) is an important risk factor for vascular disorders. There is limited research on the relationship between CSF and HTN. This study aimed to investigate TIMI frame count (TFC), which is an indicator of CSF, in dipper and non-dipper hypertensive individuals with normal coronary arteries. Methods: The study was conducted as a retrospective observational study. Patients diagnosed with CSF and dipper or non-dipper hypertension were included in this study. Blood tests were routinely conducted for all patients. ECG was conducted for each patient, and echocardiography was performed. Coronary artery images were obtained in the CAG laboratory. Blood pressure (BP) measurements were obtained from the ambulatory Holter records. The patients were separated into two groups based on ambulatory Holter monitoring. The relationship between CSF and HTN was also examined. Results: A total of 71 patients, comprising 25 women (37.2%) and 46 men (62.8%) with an average age of 52.75±9.42 years, were enrolled in the research. Based on ambulatory BP, the individuals were separated into two groups: non-dipper (n=36) and dipper (n=35). The pulse rate was significantly higher in the non-dipper group (p<0.001). In terms of mean systolic and diastolic blood pressure, there were no substantial differences across the groups (p = 0.326 and p = 0.654, respectively). The daytime mean systolic and diastolic BP did not significantly differ across the groups (p = 0.842 and p = 0.421). The dipper group had substantially lower nighttime systolic and diastolic BP values (p <0.001). The LAD, Cx, and RCA TIMI frame scores were significantly lower in the dipper group (p<0.001). Conclusion: In this study, non-dipper patients had a greater CSF rate than dipper.
Relationship Between Atrial Fibrillation Recurrence and Frontal QRS-T Angle After Effective Cardioversion
(Cureus, 2023) Özen, Kaya; Karahan, Mehmet Zülkif
Objective: Maintaining sinus rhythm is important in the management of atrial fibrillation (AF). After cardioversion, there is a significant probability of AF recurrence. There is limited research on the relationship between AF recurrence and ECG parameters. This study aimed to evaluate whether the frontal plane QRS-T angle (fQRS-T), a predictor of ventricular heterogeneity, could be used to predict AF recurrence following cardioversion. Methods: The study was conducted as a retrospective observational study. Patients diagnosed with acuteonset AF for the first time were included in the study. All patients underwent an ECG after cardioversion, and ECG parameters were evaluated. The patients were separated into two groups based on the presence of AF recurrence during hospitalization after cardioversion. The relationship between the fQRS-T and AF recurrence was also examined. Results: A total of 162 patients, comprising 68 women (41.9%) and 94 men (58.1%) with an average age of 59.4±6.5 years, were enrolled in the research. Based on the patient monitoring device findings, patients were separated into two groups: non-recurrent AF (n=118) and recurrent AF (n=44). P-wave duration was significantly longer in the recurrence group (p=0.009). The recurrence group's mean fQRS-T was significantly higher (p<0.001). AF recurrence was substantially higher in patients with fQRS-T >90 ̊compared to those with fQRS-T ≤90 ̊(56.1% vs. 14.2%, p <0.001). Increased fQRS-T >93.7 ̊indicated AF recurrence with 78.3% sensitivity and 83.4% specificity (AUC {area under curve}:0.748, p < 0.001). In multivariate analysis, fQRS-T was revealed to be an early indicator of recurrent AF (OR: 1.882, 95%CI: 1.358-2.881, p<0.001). Conclusion: The fQRS-T, an easily determinable parameter from automatic identification ECG recordings, may be useful for predicting the early return of AF after successful cardioversion.
The Significance of Frontal Plane QRS-T Angle for Estimating Non-Dipper Hypertension
(Cureus, 2022) Evsen, Ali; Karahan, Mehmet Zülkif
Objective: The frontal QRS-T angle (fQRS-T) is linked to myocardial ischemia and ventricular arrhythmias. On the other hand, non-dipper hypertension is a risk factor for cardiac adverse events. The objective of this research was to determine whether the fQRS-T, a marker of ventricular heterogeneity, could be used to predict non-dipper hypertensive individuals in the lack of left ventricular hypertrophy. Methods: The observational study was carried out retrospectively. Patients diagnosed with hypertension were included in this study. Blood tests were routinely conducted for all patients. Electrocardiography (ECG) was conducted for each patient and echocardiography was performed. Blood pressure (BP) values were collected from the ambulatory Holter records. According to ambulatory Holter monitoring, the individuals were separated into two groups. The association between fQRS-T and hypertension was investigated. Results: The research involved 123 patients, with an average age of 51.85±8.22 years, comprising 76 women (61.8%) and 47 males (38.2%). According to ambulatory Holter monitoring, patients were separated into dippers (n=65) and non-dippers (n=58). There were no statistically significant in the laboratory and echocardiographic variables (p>0.05). QT dispersion (QTd) and fQRS-T were substantially greater in the non-dipper group than in the dipper group (p=0.043 and p<0.001, respectively). Independent determinants of non-dipper status were determined by univariate and multivariate logistic regression analyses. fQRS-T was found to be the only independent indicator of non-dipper status (OR: 1.03, 95%CI: 1.02-1.06, p<0.001). Conclusion: The fQRS-T may be a useful marker for estimating non-dipper hypertensive individuals in the lack of left ventricular hypertrophy.

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