Biomedical subjects
Publications and source records attributed to A Barba.
The case of a patient suffering from Gardner-Diamond syndrome is described. Owing to the uncertain etiology, we suggest that the functional platelet defect found may intervene, maintaining and making the ecchymotic lesions worse.
Explore the source record for details and available documents.
As some rosacea patients complain of gastrointestinal troubles and the administration of pancreatic extracts ameliorates both dyspepsia and skin lesions, the pancreatic exocrine function in 21 subjects affected with rosacea has been investigated by means of the secretin-cerulein infusion test. 21 healthy controls have been studied for comparison. No difference was found between rosacea and control subjects for flow rate, bicarbonate and chymotrypsin concentration and output, while lipase concentration and output was significantly lower in rosacea patients, with a decrease ranging from 18.5 to 66% of normal values. Therefore, a deficient lipase secretion could be responsible, at least partly, for the clinical manifestations of rosacea.
Explore the source record for details and available documents.
A rapid analytical method is proposed for the determination of simazine, terbuthylazine, and their chloro dealkylated metabolites (simazine-desethyl, simazine-bisdesethyl, and terbuthylazine-desethyl) in soil. A sonication micromethod is presented for the extraction of -triazine herbicides and their metabolites. Final determination is by gas chromatography (GC) with nitrogen-phosphorus detection. The identity of all compounds was confirmed by GC with mass selective detection in the selected-ion monitoring mode. All chromatograms were very clean, without interfering peaks, and no cleanup was needed. The limits of detection were 1 pg for simazine-bisdesethyl; 5 pg for simazine, terbuthylazine, and terbuthylazine-desethyl; and 10 pg for simazine-desethyl. The limits of quantitation were 1, 5, and 10 ppb, respectively. Mean recoveries from fortified soils ranged from 76% for simazine-bisdesethyl to 102% for simazine-desethyl, with relative standard deviations of 3-6%.
In 1976, by first time, Cook used the chronic medullar stimulation (CMS) for the treatment of chronic arteriopathies at the limbs in patients with distal ischemic ulcerations. Up to now, some studies about this procedure have been published. Results, poor at first, have presented an important improvement with the time and the better choosing of patients. In 1981, Neglio used by first time CMS as a treatment of vasospastic disease, with excellent results. With this procedure, pain and vasospastic crisis disappeared and re-epithelialization of ischemic ulcerations is found. In this article, we presented a case interesting because it show the different possibilities of this method as a symptomatic treatment of such kind of disease. Patient, with a Raynaud syndrome secondary to an sclerodermia treated previously by medical and surgical procedures, was treated, in different times, with CMS because of digital ischemic ulcerations in both hands. Results were positives and ulcerations healed.
A case of a patient, with acute arterial ischemia at the upper limb is reported. On this case, ischemia was caused by humeral arterial embolism. The embolic origin was focused on the proximal end of a thrombosed axillofemoral bypass. After a rude manipulation during surgical procedure, part of the thrombus, following the sanguineous current, occluded the humeral artery. Patient underwent an emergent surgery. Posterior course was good. Histology showed a re-epithelialized, ancient thrombus. Cardiologic studies and angiography showed no others embolic focuses.
In the last years, some case reports about peripheral arterial embolism originated from ulcerative disorders in the wall of aorta and main vascular structures, have been published. Patients affected by this disease are usually aged and arteriosclerotic injuries at divers levels are common. The current case report presents a patient, 37 years old, with a history of 3 surgical procedures because of recurrent arterial embolism in the left femoro-popliteal area with unknown embolic origin. Further, a complete angiographic exploration was realized because a new occlusion in the left ileo-femoral area occurred and suspicious images of an ulcerative atheroma plaque in final aorta were found. This conjecture was confirmed during surgical procedure. It should be noted that some histories of peripheral embolism, with unknown origin, in young patients could be caused by this type of disorders.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.