ABSTRACT
A 6-year-old boy from China presented initially at 2 years of age with a pulsatile mass in his right antecubital fossa. He was not fully evaluated until the age of six years, when pan-angiography and computed axial tomography scan revealed multiple aneurysms of his right brachial artery, right radial artery aneurysms, an infrarenal aortic aneurysm, and a right internal carotid artery aneurysm in the region of the cavernous sinus. The patient underwent uneventful repairs of both the abdominal aortic aneurysm and the multiple aneurysms of the right arm. Pathologic evaluation was significant for medial fibrosis of the arterial wall with decreased and disordered elastin fibers. Review of the previously reported cases in children indicate the upper extremity arteries are involved in 92% of patients, the aortoiliac region in 92% of patients, and the renal/mesenteric vessels in 77% of cases. Lower extremity and cerebrovascular arteries are involved to a lesser extent. Children with peripheral aneurysms should have pan-angiography performed before treatment is begun. Surgical repair in these cases has been excellent.
Subject(s)
Aneurysm/surgery , Aortic Aneurysm, Abdominal/surgery , Brachial Artery/surgery , Carotid Artery Diseases/surgery , Radial Artery/surgery , Aneurysm/diagnostic imaging , Aneurysm/ethnology , Aortic Aneurysm, Abdominal/diagnostic imaging , Aortic Aneurysm, Abdominal/ethnology , Blood Vessel Prosthesis , Brachial Artery/diagnostic imaging , Carotid Artery Diseases/diagnostic imaging , Carotid Artery Diseases/ethnology , Carotid Artery, Internal/diagnostic imaging , Carotid Artery, Internal/surgery , Child , China/ethnology , Humans , Male , Peripheral Vascular Diseases/diagnostic imaging , Peripheral Vascular Diseases/ethnology , Peripheral Vascular Diseases/surgery , Polytetrafluoroethylene , Radial Artery/diagnostic imaging , Tomography, X-Ray ComputedABSTRACT
The incidence of chylopericardium after cardiac surgery is unusual, but there are documented cases. Those caring for these patients need to be aware of the symptoms and management of chylopericardium because, if left untreated, it may cause catastrophic consequences.
Subject(s)
Aortic Valve Stenosis/surgery , Chylothorax/etiology , Coronary Artery Bypass/adverse effects , Coronary Disease/surgery , Heart Valve Prosthesis/adverse effects , Pericardial Effusion/etiology , Aged , Chest Tubes , Chylothorax/diagnosis , Chylothorax/therapy , Echocardiography , Humans , Male , Pericardial Effusion/diagnosis , Pericardial Effusion/therapy , PericardiectomyABSTRACT
The liquid chromatographic detection of nitrosamines at the ppb (10(9)) and sub-ppb levels is still a difficult problem. A significant improvement was achieved when a nitrosamine eluted from the column was photolysed by a UV lamp, the charged nitrite species being detected amperometrically. N-Nitrosodimethylamine (NDMA) was selected as a model solute to test the applicability of the detection device. The calibration graphs were linear over a wide concentration range. Optimal detection depended on the nature of the buffer used and the UV spectrum of the nitrosamine to be detected. An interesting application of the detection of a high-molecular-weight nitrosamine is given as an example.
