Post Total Thyroidectomy Deglutition Syncope.

Deglutition syncope is a form of situational syncope where patients develop presyncope or syncope during swallowing. This condition has been observed to occur most commonly in patients with prior gastroesophageal conditions. Our patient developed deglutition syncope that started to occur a few weeks after undergoing a total thyroidectomy. The patient was found to have paroxysmal atrioventricular (AV) block, with up to 5.1 seconds of asystole during swallowing, manifested with episodes of dizziness and lightheadedness. A barium swallow test revealed normal peristalsis and no evidence of dysmotility. The patient underwent placement of a dual chamber pacemaker, and the syncopal episodes resolved. Interrogation of the pacemaker showed no recorded abnormal events.

Clinical Overlap Between Myopericarditis and Stress Induced Cardiomyopathy: A Diagnostic and Therapeutic Challenge.

BACKGROUND Stress induced cardiomyopathy (SIC) is characterized by non-obstructive coronary arteries and characteristic ventricular apical ballooning. The exact pathogenesis of SIC is not well recognized. We present an unusual case of SIC that mimicked acute myopericarditis and discuss the effect of this masquerading presentation of SIC in recognizing pathophysiological association between myopericarditis and SIC and limitations of current diagnostic criteria. CASE REPORT A 47-year-old female presented with flu-like illness and pleuritic chest pain. An electrocardiogram (ECG) showed diffuse PR depressions and ST elevations, troponin 5 ng/mL, hemoglobin 14.2 mg/dL, leukocytosis (white blood cell count of 15.1×103/uL) and erythrocyte sedimentation rate (ESR) of 22.4 mm/hour. Echocardiogram showed reduced ejection fraction (EF) with apical ballooning. Catheterization showed non-obstructive coronary disease. The patient was given colchicine and ibuprofen for 1 day with symptom resolution over the next 2 days and repeat echocardiogram with preserved EF. Troponin trended down to 3.24 ng/mL and 0.44 ng/mL, 6 hours apart. ECG showed resolution of PR depressions and subsequent T wave inversions in 1, AVl, V1-V6 by day 3. The diagnosis of myopericarditis was favored by viral prodrome, fever, pleuritic pain, pericardial rub, ECG findings, and elevated ESR. History of emotional stress, characteristic ballooning of left ventricle apex with rapid resolution favored SIC. CONCLUSIONS This case showed that SIC and myocarditis need not be mutually exclusive and differentiating clinically between these 2 entities can be difficult. Alternatively, SIC can accompany other cardiac conditions like myocardial infarction, pericarditis, and myocarditis making diagnosis and management challenging. Clinicians need to be cautious while making this differentiation as duration and type of therapy may be significantly different. SIC can be considered a variant of regional inflammatory myocarditis wherein pericarditis may result secondary to extension of myocardial inflammation to overlying pericardium. The current Mayo Clinic criteria for diagnosis of SIC appears to be outdated, not accounting for such atypical presentations, and therefore needs to be revised.

Multimodality Imaging of a Right Atrial Cardiac Mass.

Work up of a right atrial mass usually requires multimodality imaging and sometimes a biopsy to affirm histological diagnosis. We present a case of a 74-year-old woman with primary cutaneous melanoma (wildtype BRAF) of the right toe who was found to have a large heterogeneous mass in the right atrium on routine surveillance CT scan. She did not have any cardiac symptoms. Vital signs and physical examination were unremarkable. Cardiac magnetic resonance (CMR) imaging demonstrated a bilobed mass with an intramural component and a mobile blood pool component, with interposed thrombus. Three-dimensional transesophageal echocardiogram (3D-TEE) revealed the mass and its site of attachment on the lateral wall of the right atrium. Given the large size of the tumor and its potential for obstruction of tricuspid inflow, the right atrial mass was surgically resected. Pathology confirmed metastatic melanoma. The patient tolerated cardiac surgery well and was discharged shortly thereafter. In the present case, a large cardiac metastasis was discovered in the absence of clinically detectable disease elsewhere. CMR allowed a comprehensive evaluation of the location, extension, and tissue characterization of the cardiac mass. Transthoracic echocardiogram (TTE) and 3D-TEE allowed assessment of the hemodynamic consequences of this mass and aided in operative planning.