Eralp Ulusoy

Rapid Normalization of a Highly Thickened Pericardium by Chemotherapy in a Patient with T-cell Acute Lymphoblastic Lymphoma

The most common tumor that affects the pericardium is malign lymphoma. T‐cell lymphoblastic lymphoma (TLL) is a rare type of malign lymphomas. In this manuscript, we are reporting a patient with TLL with pericardial involvement diagnosed incidentally during the evaluation of pleural effusion. Echocardiographic examination showed thickened pericardium and pericardial effusion. The pericardial thickness was found to be 13 mm by computerized tomography and confirmed by echocardiography. The patient had systemic chemotherapy for TLL. On day 30 of chemotherapy, computerized tomography of the thorax and echocardiographic examination revealed normal pericardial thickness and minimal pericardial effusion. Copyright

Atrioventricular Block During an Induced Tachycardia: What Is the Diagnosis? Where Is the Site of AV Block?

Introduction A 21-year-old man presented with palpitation refractory to βand calcium channel blockers. His 12-lead ECG was unremarkable without preexcitation. He underwent an electrophysiological study following the positioning of a decapolar catheter into coronary sinus, a quadripolar catheter to the His-bundle position and a roving catheter to the anteroseptal region through the right femoral vein. The intracardiac measurements were within normal range without any preexcitation. During programmed atrial stimulation, an abrupt increase in the AH interval was detected revealing the presence of dual AV nodal physiology. A tachycardia with a cycle length (CL) of 331 ms was reproducibly inducible by programmed atrial stimulation. Figure 1 depicts the intracardiac electrograms during the tachycardia. What kind of tachycardias can be excluded and diagnosed from this single frame? Where is the site of AV block?