ABSTRACT
A plasma surgical device and a CO2-laser device were used in operative treatment of 46 patients with hydatid disease of the liver; in 25 in the patients these measures were combined with exposure to low-energy helium-neon laser radiation. The patients' condition improved more rapidly, the frequency of postoperative complications reduced, the term of postoperative hospital stay of the patients decreased. The fibrous capsule was studied morphologically before and after manipulations with the laser and plasma scalpel.
Subject(s)
Echinococcosis, Hepatic/surgery , Laser Therapy , Echinococcosis, Hepatic/pathology , Humans , Laser Therapy/instrumentation , Liver/pathology , Postoperative ComplicationsABSTRACT
Chief cells were studied ultrastructurally and stereometrically in 93 patients at various intervals (from 2 weeks up to 4 years) after complete vagotomy as well as in 87 patients at the same intervals after selective proximal vagotomy. The chief cell structure indicated their high level of secretory activity in patients with duodenal ulcer regardless of the type of initial secretion (hypo-, normo- or hypersecretion). Vagotomy, apart from the decrease of the chief cell volume in the glands results in the reduction of their intracellular structures. The secretory granule structure was changed indicating the disturbance of cell differentiation, more pronounced after selective proximal vagotomy.
Subject(s)
Duodenal Ulcer/pathology , Gastric Mucosa/pathology , Vagotomy, Proximal Gastric , Cell Differentiation/physiology , Duodenal Ulcer/surgery , Gastric Fundus , Gastric Mucosa/metabolism , Gastric Mucosa/ultrastructure , Humans , Secretory Rate/physiology , Time FactorsSubject(s)
Hepatectomy , Laser Therapy , Liver/surgery , Models, Biological , Animals , Carbon Dioxide , Copper , Liver/radiation effects , Male , Postoperative Care , Radiation Dosage , Rats , Rats, Inbred Strains , Time Factors , Volatilization , Wound Healing/radiation effectsABSTRACT
The pyloric glands and muciferous superficial cells of the pyloric mucosal membrane have been studied in 62 patients with complicated forms of duodenal ulcer--preoperatively, 2--4 weeks, 6--12 months following truncal vagotomy with drainaged stomach. The light transmission and scanning electron microscopy and stereometry, were used as well as the determination of mucosal production and intragastric pHmetry. It is shown that vagotomy leads to a decrease of inflammatory changes without an essential influence on the pyloric gland size. Ultrastructure of muciferous cells gives evidence of their significant possibilities for mucus production, although the production of gastric mucosal components decreases postoperatively. Apart from this essential decrease of the main and parietal cell size and their secretory activity was noted. This provides an adequate level of acid-neutralizing gastric function following vagotomy.
