Celiac Axis Compression Syndrome

External compression of the celiac artery by the median arcuate ligament of the diaphragm has been reported to result in a varient of chronic intestinal ischemia since 1963 by Harjola. Diaphragmatic compression of the celiac axis is frequently reversible and varies with respiration. The diagnosis remains one of exclusion and should be made only with very careful deliberation. Authors experienced only one case of celiac axis syndrome at Yeungnam University Hospital recently and reviewed literatures. A 29-year-old young tall and slender man complained of prolonged postprandial epigastric pain and an epigastric bruit especially during expiration for 10 years. Angiography demonstrated significant narrowing at the origin of the celiac artery. At operation, 1 cm distal portion of the celiac artery to the origin was found to be compressed by the median arcuate ligament of the diaphragm and ganglion nerve fibers, and these were divided. After division of the ligament, the blood flow through the celiac axis was increased and common hepatic artery was dilated grossly. Seven days later after surgery, abdominal pain was recurred following oral intake. So, we performed cine-angiogram of the celiac axis and found persistent the stenotic lesion, and then we performed percutaneous transluminal balloon dilatation. After this procedure, the patient has remained well and free of pain.

Factors influencing arterial CO² tension in cats during high frequency oscillation ventilation / 영남의대학술지

High frequency ventilation (HFV) is a new ventilatory technique that uses very small tidal volume (less than the anatomic dead space) and high frequency, and classified 4 distinct types according to frequency and mode of gas delivery. The mechanism of gas transport of high frequency oscillation ventilation (HFOV) is somewhat different to other types of HFV. To evaluate the determinants of PaCO² in HFOV, a study was done with a HFOV on 9 cats, and the results are: 1) PaCO² was not correlated with frequency at the constant stroke volume (6 voltage) and bias flow (6 L/minutes). 2)PaCO² was correlated with stroke volume but not with bias flow under the constant frequency (15 Hz/min) and bias flow (3 to 6 L/min). From above results, the main determinant of PaCO² on artificial ventilation with HFOV was stroke volume, but further study between flow, the site of delivery to the airway and humidification of bias flow and CO² elimination is required in future research.

A Case Report of Cerebral Embolism from a Left Atrial Myxoma

Transient ischemic attacks or embolic strokes caused by the cardiac myxoma are very rare in its freguency. To detect cardiac myxoma, as a source of cerebral embolism originating from the heart, has a great significance because of the occurrence and recurrence of the possible stroke can be prevented by surgical procedure. We present a patient who showed typical clinical symptoms and signs of the left atrial myxoma which was subsequently diagnosed by 2-dimensional real time echocardiography and confirmed by sugery. Following the successful removal of the left atrial myxoma, now, the patient is in stable neurological condition.