Isolated right ventricular takotsubo cardiomyopathy presenting as acute right ventricular failure: A case report.

Background: Takotsubo cardiomyopathy (TTC) is a non-ischaemic cardiomyopathy, characterized by transient wall motion abnormalities of the left ventricle. Although biventricular involvements are common with a poor prognosis, isolated right ventricular (RV) involvement of TTC is a rare, and its diagnosis remains challenging. Case presentation: We encountered a case of isolated RV-TTC presenting as acute RV failure, with progression to cardiogenic shock requiring intensive treatment. Conflicting echocardiographic findings of RV asynergy with RV enlargement despite normal left ventricular wall motion and mild tricuspid regurgitation led to the correct diagnosis. Finally, the patient showed complete recovery with normalization of cardiac structure and function. Conclusions: This case underscores the clinical significance of considering isolated RV-TTC as a new distinct variant form of TTC in terms of presentation, diagnostic findings, differential diagnosis, treatment strategy, and prognosis.

Case Report: Spontaneous Postpartum Quadruple Cervicocephalic Arterial Dissection With a Heterozygous COL5A1 Variant of Unknown Significance.

Pregnancy-associated cervicocephalic arterial dissection is rare, and its pathophysiology remains poorly understood. Despite the hypothesized contribution to pathogenesis, connective tissue diseases and genetic factors are rarely identified in clinical cases. We describe a case of postpartum arterial dissection involving all four cervicocephalic arteries resulting in acute cerebral infarction. The patient underwent successful endovascular thrombectomy and angioplasty and recovered fully without sequelae. Genetic screening for connective tissue diseases identified a heterozygous missense COL5A1 variant with unknown clinical significance. Two genetically related family members later developed arterial abnormalities, and one of them tested positive for the same COL5A1 gene variant as our patient, while the other was scheduled for genetic testing. The extensive clinical presentation of our patient and the prevalence of arterial abnormalities in her family warrant further assessment of the association between the identified COL5A1 gene variant and the pathogenesis of arterial dissections.

[Case report of repeated acetaminophen overdosing with various symptoms].

A 32-yr-old woman with acute gastritis and migraine used Naron commonly (the principal ingredients are acetaminophen and bromvalerylurea) and had been taking about 3g of acetaminophen daily for several days before admission. She was hospitalized with severe diffuse abdominal pain. On physical examination she had a peritoneal sign and laboratory studies showed elevated liver enzymes, hypophosphatemia, hypokalemia and low blood urea nitrogen(BUN). Serum acetaminophen level was 5.5 microg/mL on admission, so she seemed to be suffered from not only single ingestion but also repeated overdosing. Although we needed for aggressive phosphate and potassium repletion for about a week, all symptoms were distinguished after she quitted acetaminophen ingestion. In addition to hepatic dysfunction, renal failure and disseminated intravascular coagulopathy, we should pay attention to various symptoms like in this case when treating for a acetaminophen poisoning.

[A case of acute ethanol intoxication with remarkable hyperglycemia by "ume-shu", a Japanese apricot liquor made with a large amount of sugar].

A 19-year-old woman ingested 2.2 L of "umeshu", a Japanese apricot liquor made with a large amount of sugar. She was unconscious and in shock. The estimated blood ethanol concentration was 607 mg/dl, and the blood glucose level was 576 mg/dl. Because her respiration and circulation was highly suppressed, blood purification was indicated. Continuous hemodiafiltration (CHDF) was performed instead of hemodialysis because her hemodynamics was unstable. After CHDF was instituted, her blood glucose level reduced to normal range, and her consciousness became alert. CHDF was effective in eliminating ethanol and stabilizing her hemodynamics within an early stage. Though acute ethanol intoxication is known to inhibit glucogenesis, leading to hypoglycemia, marked hyperglycemia was seen in this case. Ingestion of a large amount of glucose-rich liquor and being in shock seemed to be the causes of hyperglycemia.