Person: YEŞİLBAŞ, OSMAN
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Publication Open Access Persistent pleural effusion in an infant with an unusual diagnosis: congenital alveolar rhabdomyosarcoma(2020-01-01T00:00:00Z) Yozgat, Can Yilmaz; YEŞİLBAŞ, Osman; YOZGAT, Yılmaz; AKDEMİR, OSMAN CEMİL; YURTSEVER, İsmail; TEKİN, NUR; BAGHISHOV, DAMAT; BAYRAMOVA, NİGAR; ELAGÖZ, Şahande; ÇAKIR, FATMA BETÜL; YEŞİLBAŞ, OSMAN; YOZGAT, YILMAZ; AKDEMİR, OSMAN CEMİL; YURTSEVER, İSMAİL; TEKİN, NUR; BAGHISHOV, DAMAT; BAYRAMOVA, NİGAR; ELAGÖZ, ŞAHANDE; ÇAKIR, FATMA BETÜLRhabdomyosarcoma (RMS) is a malignant form of neoplasm that originates from skeletal muscle. RMSs can exist anywhere in the human body but are more commonly detected in the neck region and extremities. The alveolar type is one of the subtypes of RMS that has a poor prognosis. Because the clinical manifestation of a tumour can be a painless mass, symptoms might be non-contributary to the diagnosis. Herein, a four-month-old girl was admitted to the emergency department with complaints of respiratory distress without a runny nose, cough, and fever. Recurrent effusions subsided with subsequent tube thoracostomy. Video-assisted thoracoscopic surgery (VATS) was performed to determine the aetiology of the recurrent effusion. The Tru-Cut biopsy obtained during VATS resulted in the diagnosis of alveolar rhabdomyosarcoma. Pleural effusion decreased, and the tube drainage was stopped rapidly after first vincristine, actinomycin-D, and cyclophosphamide chemotherapy cycle. Persistent and recurrent pleural effusions should alert physicians to rule out unusual diagnoses like that of our case.Publication Metadata only Life-threatening multiple brain abscesses secondary to Actinomyces odontolyticus(2020-11-01T00:00:00Z) YEŞİLBAŞ, Osman; Yozgat, Can Yilmaz; Nizam, Oznur Gokce; BURSAL DURAMAZ, BURCU; TÜREL, Özden; YEŞİLBAŞ, OSMAN; BURSAL DURAMAZ, BURCU; TÜREL, ÖZDENPublication Metadata only Recurrent Elevation of Troponin Levels in Acute Myocarditis: Is it a Sign of Ventricular Tachycardia?(2020-07-01T00:00:00Z) Yozgat, Can Yilmaz; YEŞİLBAŞ, Osman; UZUNER, SELÇUK; SARITAŞ, BETÜL; ERGÖR, Serap Nur; OTÇU TEMUR, Hafize; YOZGAT, Yılmaz; YEŞİLBAŞ, OSMAN; UZUNER, SELÇUK; SARITAŞ, BETÜL; ERGÖR, SERAP NUR; OTÇU TEMUR, HAFİZE; YOZGAT, YILMAZPublication Open Access Subdural empyema, brain abscess, and superior sagittal sinus venous thrombosis secondary to Streptococcus anginosus(2021-01-01T00:00:00Z) YEŞİLBAŞ, Osman; YOZGAT, Can Yılmaz; Tahaoglu, Irmak; BURSAL DURAMAZ, BURCU; TÜREL, Özden; TEKİN, NUR; UZUNER, SELÇUK; Abdallah, Anas; YEŞİLBAŞ, OSMAN; YOZGAT, YILMAZ; BURSAL DURAMAZ, BURCU; TÜREL, ÖZDEN; TEKİN, NUR; UZUNER, SELÇUKStreptococcus anginosus can be frequently isolated from brain abscesses, but is a rare cause of the liver, lung, and deep tissue abscesses. In this report, we present a patient with subdural empyema, brain abscess, and superior sagittal cerebral venous thrombosis as complications of rhinosinusitis whose purulent empyema sample yielded S. anginosus. A 13-year-old female patient was referred to our pediatric intensive care unit with altered mental status, aphasia, and behavioral change. On a brain computed tomography scan, subdural empyema extending from the left frontal sinus to the frontal interhemispheric area and left hemispheric dura was detected. Intravenous ceftriaxone, vancomycin, and metronidazole treatments were started. Subdural empyema was surgically drained. Postoperative brain magnetic resonance venography imaging showed superior sagittal sinus thrombosis. Cultures obtained from purulent empyema sample revealed S. anginosus. On the third day of hospitalization, a brain computed tomography scan showed brain edema, especially in the left hemisphere and significantly increased subdural empyema that had been previously drained. She was reoperated and decompressive craniectomy was performed. On the fifth day, partial epileptic seizures occurred. Brain magnetic resonance imaging showed a brain abscess on the interhemispheric area. The magnetic resonance imaging findings of abscess formation improved on 30th day and she was discharged on the 45th day after the completion of antibiotic therapy.Publication Open Access A fatal interstitial lung disease in an anti-melanoma differentiation-associated gene 5 (anti-MDA5) antibody negative patient with juvenile dermatomyositis(2021-09-01T00:00:00Z) YEŞİLBAŞ, Osman; Yildiz, Mehmet; Yozgat, Can Yilmaz; Tahaoglu, Irmak; YAZAN, HAKAN; ÇAKIR, Erkan; Adrovic, Amra; Sahin, Sezgin; Barut, Kenan; Kasapcopur, Ozgur; YEŞİLBAŞ, OSMAN; YILDIZ, MEHMET; YAZAN, HAKAN; ÇAKIR, ERKANBackground. Juvenile dermatomyositis associated interstitial lung disease, rarely seen in pediatric age groups, has adverse effects on survival. Anti-melanoma differentiation associated gene 5, one of the identified autoantibodies in juvenile dermatomyositis, preferentially affects the lung tissue and may cause rapidly progressive interstitial lung disease. It is a major cause of mortality in juvenile dermatomyositis. In this case report, we present a pediatric patient diagnosed with juvenile dermatomyositis without anti-melanoma differentiation associated gene 5 antibody positivity.Publication Metadata only Development of Antiarrhythmic Therapy-Resistant Ventricular Tachycardia, Ventricular Fibrillation, and Premature Ventricular Contractions in a 15-Year-Old Patient(2020-09-01T00:00:00Z) Yozgat, Can Yilmaz; YEŞİLBAŞ, Osman; İŞCAN, AKIN; YURTSEVER, İsmail; OTÇU TEMUR, Hafize; BAYRAMOVA, NİGAR; ERGÜN, GÖKÇE; TEKİN, NUR; YOZGAT, Yılmaz; YEŞİLBAŞ, OSMAN; İŞCAN, AKIN; YURTSEVER, İSMAİL; OTÇU TEMUR, HAFİZE; BAYRAMOVA, NİGAR; ERGÜN, GÖKÇE; TEKİN, NUR; YOZGAT, YILMAZSudden cardiac arrest (SCA) is the sudden cessation of regular cardiac activity so that the victim becomes unresponsive, with no signs of circulation and no normal breathing. Asystole, ventricular tachycardia (VT), ventricular fibrillation (VF), and pulseless electrical activity are the underlying rhythm disturbances in the pediatric age group. If appropriate interventions (cardiopulmonary resuscitation-CPR and/or defibrillation or cardioversion) are not performed rapidly, this condition progresses to sudden death. There have not been many reported cases of the approach and treatment of cardiac arrhythmias after SCA. Herein, we would like to report a case of a 15-year-old female patient with dilated cardiomyopathy (DCM) who was admitted to our clinic a year ago, and while her left ventricular systolic functions were improved, SCA suddenly occurred. Since the SCA event occurred in another city, intravenous treatment of amiodarone was done immediately and was switch to continuous infusion dose of amiodarone until the patient arrived at our institution-s pediatric intensive care unit (PICU) 3hours later. During the patient-s 20-day PICU hospitalization, she developed pulseless VT and VF from time to time. The patient-s pulseless VT and VF attacks were brought under control by the use of a defibrillator and added antiarrhythmic drugs (amiodarone, flecainide, esmolol, and propafenone). Intriguingly, therapy-resistance bigeminy with premature ventricular contractions (PVCs) continued despite all these treatments. The patient did not have adequate blood pressure measured by invasive arterial blood pressure monitoring while having bigeminy PVCs. The intermittent bigeminy PVCs ameliorated rapidly after intermittent boluses of lidocaine. In the end, multiple antiarrhythmic therapies and intermittent bolus lidocaine doses were enough to bring her cardiac arrhythmias after SCA under control. This case illustrates that malign PVC-s should be taken very seriously, since they may predispose to the development of VT or VF. Also, this case highlights the importance of close vigilance of arterial pressure tracings of patients with bigeminy PVCs which develop after SCA and should not be accepted as normal.Publication Metadata only Late Diagnosis of MELAS Can Lead to A Serious Brain Edema that Ultimately Requires Decompressive Craniectomy(2019-11-01T00:00:00Z) Nizam, Oznur Gokce; ŞENGENÇ, ESMA; YEŞİLBAŞ, OSMAN; Sahin, Seyma Sonmez; İŞCAN, AKIN; İÇAĞASIOĞLU, DİLARA FÜSUN; ŞENGENÇ, ESMA; YEŞİLBAŞ, OSMAN; İŞCAN, AKIN; İÇAĞASIOĞLU, DİLARA FÜSUNPublication Metadata only A Rare Presentation of Neurobrucellosis in a 6-Year-Old Pediatric Patient with Sagittal Sinus Thrombosis(2020-10-01T00:00:00Z) TÜREL, Özden; KUTLU, NURETTİN ONUR; YEŞİLBAŞ, Osman; Yozgat, Can Yilmaz; DÜNDAR, TOLGA TURAN; BURSAL DURAMAZ, BURCU; UZUNER, SELÇUK; ABDİLLAHİ, FATOUMA KHALİF; TÜREL, ÖZDEN; UZUNER, SELÇUK; BURSAL DURAMAZ, BURCU; DÜNDAR, TOLGA TURAN; SEYİTHANOĞLU, MEHMET HAKAN; YEŞİLBAŞ, OSMAN; KUTLU, NURETTİN ONURBrucellosis is one of the most common zoonosis worldwide. It is still endemic in many regions of the world. A 6-year-old female was admitted to the emergency department (ED) due to a sudden change in consciousness, urinary incontinence, vomiting, and difficulty in walking. Neurological examination demonstrated abducens nerve paralysis, mild-to-moderate motor deficit in hemiparesis in the left arm. Brain magnetic resonance imaging showed a hemorrhagic focus at the right frontal lobe and thrombosis in the superior sagittal sinus of the brain. The diagnosis of neurobrucellosis was confirmed by identifying Brucella spp. in the blood culture on the day 6 of pediatric intensive care unit admission; thus, trimethoprim-sulfamethoxazole and rifampicin, and ceftriaxone were promptly initiated. Despite neuroprotective management and acetazolamide, the patient-s neurological problems and high intracranial pressure (ICP) persisted. An external ventricular drainage tube and a Codman ICP monitor were placed to be on the consent vigilance of the patient-s neurological condition. The patient-s ICP continued to increase despite the current treatment regimen; therefore, a decompressive bitemporal craniectomy was performed. The ICP level of the patient returned to its normal range immediately after the craniectomy. The patient did not have any notable neurologic sequelae at the first-year follow-up. Neurobrucellosis is a rare complication of systemic brucellosis and may present as meningitis, encephalitis, myelitis, radiculitis, and/or neuritis. Herein, we describe a six-year-old girl with brucellosis complicated with cerebral vein thrombosis. This case illustrates the need for close monitoring of patients with unexplained neurological signs or symptoms for brucellosis in endemic areas.Publication Metadata only Williams Syndrome Presenting with Intractable Staphylococcus aureus Endocarditis(2020-02-14T04:00:00Z) Yozgat, Can Yilmaz; UZUNER, SELÇUK; Yesilbas, Osman; BURSAL DURAMAZ, BURCU; YOZGAT, Yılmaz; İŞCAN, AKIN; TÜREL, Özden; UZUNER, SELÇUK; YEŞİLBAŞ, OSMAN; BURSAL DURAMAZ, BURCU; YOZGAT, YILMAZ; İŞCAN, AKIN; TÜREL, ÖZDENPublication Metadata only Sudden Cardiac Arrest and Malignant Ventricular Tachycardia in an 8-Year-Old Pediatric Patient Who Has Hemolytic Uremic Syndrome Associated with Shiga Toxin-Producing Escherichia coli(2020-12-01T00:00:00Z) YEŞİLBAŞ, Osman; Yozgat, Can Yilmaz; AKINCI, NURVER; TALEBAZADEH, FARAZ; JAFAROV, UZEYİR; GÜNEY, ABDURRAHMAN ZARİF; OTÇU TEMUR, Hafize; YOZGAT, YILMAZ; YEŞİLBAŞ, OSMAN; AKINCI, NURVER; TALEBAZADEH, FARAZ; JAFAROV, UZEYİR; GÜNEY, ABDURRAHMAN ZARİF; OTÇU TEMUR, HAFİZE; YOZGAT, YILMAZGastrointestinal, neurological, pancreatic, hepatic, and cardiac dysfunction are extrarenal manifestations of hemolytic uremic syndrome associated with Shiga toxinproducing Escherichia coli (STEC-HUS). The most frequent cause of death for STECHUS is related to the central nervous system and cardiovascular system. Cardiac-origin deaths are predominantly related to thrombotic microangiopathy-induced ischemia and the immediate development of circulatory collapse. STEC-HUS cardiac related deaths in children are rare with only sporadic cases reported. In our literature search, we did not come across any pediatric case report about STEC-HUS causing sudden cardiac arrest and malignant ventricular tachycardia (VT). Herein, we report the case of an 8-year-old female child with a typical clinical manifestation of STEC-HUS. On the seventh day of pediatric intensive care unit admission, the patient had a sudden cardiac arrest, requiring resuscitation for 10minutes. The patient had return of spontaneous circulation with severe monomorphic pulsed malignant VT. Intravenous treatment with lidocaine, amiodarone and magnesium sulfate were promptly initiated, and we administered multiple synchronized cardioversions, but VT persisted. Furthermore, we were not able to ameliorate her refractory circulation insufficiency by advanced cardiopulmonary resuscitation. Thus, inevitably, the patient lost her life. This case illustrates the need for aggressive management and the dilemma that pediatric critical care specialists, cardiologists, and nephrologists have to face when dealing with STECHUS that is worsened by a sudden cardiac arrest accompanied with VT.