Person: TÜRKMEN, HASAN
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TÜRKMEN
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HASAN
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Publication A rare and fatal cause of hypertrophic cardiomyopathy: Danon disease(Cambridge Univ Press, 2023-01-05) Türkmen, Hasan; TÜRKMEN, HASAN; Uysal, Fahrettin; UYSAL, FAHRETTİN; Bostan, Özlem Mehtap; BOSTAN, ÖZLEM MEHTAP; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Pediatri Anabilim Dalı.; 0000-0001-7707-2174Danon disease is a rare and fatal disease caused by a mutation in the lysosome-associated membrane protein 2 gene. Impaired intracellular autophagy causes lysosomal vacuoles to accumulate mainly in myocardial and skeletal muscle cells, leading to hypertrophic cardiomyopathy, skeletal myopathy, and varying degrees of intellectual disability. Two distinct childhood presentations of Danon disease are described in this report.Publication The role of external loop recorders in arrhythmia-related symptoms in children: A single center experience(Springer, 2021-08-13) Akça, Tuğberk; Uysal, Fahrettin; Bostan, Özlem Mehtap; Genç, Abdusselam; Türkmen, Hasan; AKÇA, TUĞBERK; UYSAL, FAHRETTİN; BOSTAN, ÖZLEM MEHTAP; GENÇ, ABDÜSSELAM; TÜRKMEN, HASAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Kardiyoloji Bölümü; 0000-0001-7707-2174; 0000-0002-2747-974X; AEX-4557-2022; AAH-4421-2021; AAG-8558-2021; CQK-7120-2022; JKC-8556-2023In this study, we report our experience with the use of external loop recorders (ELRs), in terms of diagnostic efficiency according to symptoms and symptom-rhythm correlation in pediatric patients. We evaluated ELRs applied to 178 patients between April 2017 and November 2020 at our center. The mean age of 172 patients included in the study was 13.6 +/- 3.8 years, and 69.8% were female. ELR indications were palpitations in 98 (56.9%) cases, chest pain and palpitations in 43 (25%) cases, presyncope/syncope in 28 (16.2%) cases, and pacemaker/ implantable cardioverter-defibrillator (ICD) problems in 3 (0.2%) cases. ELR recording times were 14.2 +/- 9.7 days on average, ranging from 2 to 67 days. While the symptom-rhythm correlation was 29.1% in total, when the indications were evaluated one by one, this correlation was found to be 30.2% in palpitations, 34.7% in chest pain and palpitations, and 10.7% in presyncope/syncope. The total diagnostic efficiency was 68.1%. In the follow-up of ELR cases, a total of 139 (80.8%) patients received clinical follow-up without medication, 15 (8.8%) patients received medical treatment, and 18 (10.4%) patients underwent EPS. The cardiac ELR system is useful in detecting underlying arrhythmias. Demonstrating sinus tachycardia at the time of the symptom may be seen as negative finding, but while experiencing symptoms, it is diagnostically valuable and may help avoid further investigation with costly and invasive diagnostic procedures. For diagnostic efficiency and cost effectiveness, the optimal recording time is 2 weeks, but it should be extended to 4 weeks in cases such as of presyncope/syncope that cannot be explained with a 2-week ELR use.Publication Ventricular extrasystole in children: Single-center experience(Aves, 2023-07-01) Uysal, Fahrettin; Özalp, Şule; Genç, Abduesselam; Akca, Tugberk; Türkmen, Hasan; Bostan, Özlem M.; UYSAL, FAHRETTİN; Özalp, Şule; Genç, Abduesselam; TÜRKMEN, HASAN; BOSTAN, ÖZLEM MEHTAP; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Kardiyoloji Anabilim Dalı.; AAH-4421-2021; JAQ-0729-2023; JAV-5863-2023; EBR-6819-2022; JAT-4036-2023Objective: Ventricular extrasystole is one of the most common rhythm disorders in children, and almost all of them are characterized by normal cardiac functions without structural cardiac abnormalities. The aim of this study was to assess the clinical course of ventricular extrasystole in children who did not have cardiac structural abnormalities.Materials and Methods: This retrospective study analyzed 24-hour rhythm Holter recordings performed in our clinic in children. Patients diagnosed with isolated ventricular extrasystole in Holter records and without structural heart disease on echocardiography were included in the evaluation.Results: A total of 20 160 Holter results were evaluated in the study, and 226 patients (male; 66%) met the criteria. The mean follow-up time was 8.7 & PLUSMN; 3.2 years. While 81.8% of the patients were asymptomatic, the most common symptom was palpitation and 5 patients had syncope. Of the patients, 72 (31.8%) received medical therapy. Beta-blockers were the most often prescribed medication. Cardiomyopathy did not develop in any of the patients during the followup period. A partial reduction in the frequency of ventricular extrasystole was observed in 42% of the patients, while complete recovery was observed in 22%.Conclusion: Ventricular extrasystole in children generally has a good prognosis; most of them are asymptomatic, and the rates of spontaneous regression over time are quite high, regardless of the origin.Publication Evaluation of acute organ toxicity, biochemical and metabolic changes in pediatric oncology patients(Galenos Publ House, 2023-04-01) Demirkaya, Metin; TÜRKMEN, HASAN; SEVİNİR, BETÜL BERRİN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı.; 0000-0002-3232-7652; AAH-1570-2021Introduction: Organ toxicity is common in childhood cancers and can cause delays in chemotherapy and worsening of prognosis. In this study, we aimed to evaluate organ toxicities, biochemical and metabolic abnormalities associated with the tumor and/or chemotherapy in the acute phase of treatment in children with cancer.Materials and Methods: The data of 305 patients with lymphoma and solid tumors who received chemotherapy between 01.01.2010 and 31.12.2015 in a tertiary healthcare facility were retrospectively evaluated. The effects of age, gender, cancer stage, chemotherapy group, surgery and radiotherapy on organ toxicity in the first 30 days of treatment were analyzed.Results: The mean age of the patients at admission was 97 months, and the male/female ratio was 1.5. The most common diagnoses were lymphomas (27.6%), CNS and spinal canal tumors (12.5%) and neuroblastoma (11.8%). Chemotherapy was applied to all the patients, surgery to 61.3% (n=187), and radiotherapy to 13.1% (n=40). Organ toxicity was detected in 59% (n=180) of the patients. The use of alkylating agents, antimetabolites, plant products, and no surgery were risk factors for hepatotoxicity (p<0.05). The only risk factor for nephrotoxicity was antimetabolite drug use (p<0.05). The most common electrolyte disorder was hyponatremia, observed in 56.7% (n=173) of the patients. Two patients died during the study period, which were not due to organ toxicity, metabolic disease, or electrolyte disturbance.Conclusion: The rate of organ toxicity as well as biochemical, electrolyte, and metabolic abnormalities were found to be high. These high rates were thought to be related to the excessive tumor burden and organ involvement and the intensity of the combined chemotherapies applied. No associated mortality was observed despite these high rates. Early detection of these pathologies, close follow-up and immediate treatment with the multidisciplinary approach to treatment were described as the reason for the absence of mortality.