Neurological Manifestations of Myeloneuropathy in Patients with Nitrous Oxide Intoxication

No abstract available.

Ischemic Stroke with Cerebral Vasculopathy in POEMS Syndrome

Ischemic stroke caused by the cerebral vasculopathy is a rare complication of polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome. We present a case of recurrent ischemic strokes caused by cerebral vasculopathy in a patient with POEMS syndrome. A 34-year-old man presented with gait disturbance and dizziness. Brain magnetic resonance imaging demonstrated acute ischemic stroke in the middle cerebral artery-anterior cerebral artery (MCA-ACA) border zones of bilateral hemispheres. Repeated angiographic studies showed progressive worsening of the left distal internal carotid artery, ACA, and MCA stenoses, along with sustained steno-occlusion of right MCA.

Hematological Changes Associated with Theileria orientalis Infection in Korean Indigenous Cattle

Tick-borne pathogens can cause serious problems in grazing cattle. However, little information is available on tick-mediated diseases in cattle grazing on mountains. Thus, this study aimed to understand the potential problems related to tick-borne diseases in grazing cattle through the investigation of prevalent tick-transmitted infections, and their associated hematological changes, in terms of season and grazing type in Korean indigenous cattle (=Hanwoo). Hanwoo cattle from 3 regions of the Republic of Korea (=Korea) were either maintained indoors or placed on grassy mountains from spring to fall of 2014 and 2015. Cattle that grazed in mountainous areas showed a greater prevalence of tick-borne infections with an increased Theileria orientalis infection rate (54.7%) compared to that in non-grazing cattle (16.3%) (P < 0.001). Accordingly, the red blood cell (RBC) count and hematocrit (HCT) values of grazing cattle were significantly lower than those of non-grazing cattle throughout the season (P < 0.05). Moreover, RBC, hemoglobin (Hb), and HCT of T. orientalis-positive group were significantly lower than those of T. orientalis-negative group (P < 0.05). T. orientalis is a widespread tick-borne pathogen in Korea. Grazing of cattle in mountainous areas is closely associated with an increase in T. orientalis infection (RR=3.4, P < 0.001), and with consequent decreases in RBC count and HCT. Thus, these findings suggest that the Hanwoo cattle in mountainous areas of Korea are at a high risk of infection by T. orientalis, which can lead to hematological alterations. This study highlights the necessity of preventive strategies that target T. orientalis infection.

Comparative Evaluation of the Harmless Acute Pancreatitis Score and CT Severity Index to Predict Mild Clinical Course of Acute Pancreatitis in the Emergency Department

PURPOSE: Several scoring systems and biochemical markers have been proposed for the early prediction of acute pancreatitis. The Harmless Acute Pancreatitis Score (HAPS) is a novel scoring system to recognize acute pancreatitis patients with a non-severe clinical course. This study was conducted to evaluate the usefulness of HAPS to predict good prognosis of acute pancreatitis in the emergency department (ED). METHODS: We retrospectively reviewed the electronic medical records of patients who presented to the ED with acute pancreatitis from January 2010 to December 2011. The parameters constituting HAPS, including physical signs of peritonitis (rebound abdominal tenderness), hematocrit and serum creatinine levels were abstracted. Severe clinical course was defined as having one of the following: mortality while in hospital, necrosis as assessed by contrast CT, need for artificial ventilation or dialysis. The diagnostic performance of HAPS for predicting harmless course was evaluated by sensitivity, specificity, and predictive values. RESULTS: During the study period, 144 patients with a final diagnosis of acute pancreatitis were included. Among these 144 patients, 79 were predicted to have a non-severe course by HAPS, of whom 4 patients progressed to severe pancreatitis. The sensitivity, specificity, positive and negative predictive values were 61.5%, 81.8%, 94.9% and 27.7%, respectively. CONCLUSION: This study suggests that HAPS is simple and can be assessed within a few hours in the ED. HAPS also showed a high positive predictive value that predicts a non-severe course of acute pancreatitis. Therefore, HAPS may be used as a scoring system to identify non-severe acute pancreatitis in the ED.