Search PubMed⌕ Search

Biomedical subjects

C Stanciu

Publications and source records attributed to C Stanciu.

174 records · Page 10Linked to original sources
PubMedDate not supplied

Basic mechanical rhythm in the rat small intestine.

The basic electrical rhythm (BER) of the small intestine in rat proves its physiological usefulness in generating the basic mechanical rhythm (BMR) as a specific form of muscular tonus in the interdigestive (respite) phases BMR is susceptible to amplitude modifications under the influence of factors that are intrinsic or extrinsic to the muscle fibre, an influence which is exerted either directly over the contractile phenomenon, or by means of electrical phenomena. Recording of BMR is made possible through the use of transducers appropriate in point of sensitivity and of size for the area from which information about the contraction force is collected.

Animals↗
PubMedDate not supplied

Frequency gradients of the basic electrical and mechanical rhythms along the rat intestine.

The basic mechanical rhythm (BMR), initiated and maintained by the basic electrical rhythm (BER), ensures the muscular tonus of the intestine during the interdigestive phases. The frequency and amplitude gradient for the BER waves and, correlated with them, the frequency and size gradient of the BMR contraction force have an anatomic determination. The circular muscle layer is discontinuous, consisting of cylindrical segments separated by conjunctive tissue, segments whose size increases starting from the duodenum to the ileocecal valve. The electrical connection between the cylindrical segments formed by the circular muscles is provided by the layer of longitudinal muscle fibres. Each and every segment generates a general voltage which is higher than that of the preceeding segment, so that the slow BER wave becomes amplified along the intestine. In correlation with the electrical phenomena, the BMR contractile waves will become more ample in the terminal region of the intestine, facilitating the progress through peristalsis of the luminal content with greater viscosity.

Animals↗
PubMedDate not supplied

[Retrograde cholangiopancreatography (ERCP) and endoscopic sphincteropapillotomy (ES) in the diagnosis and treatment of common bile duct (CBD) lithiasis].

The common bile duct (CBD) stones often gives real difficulties of diagnosis and treatment. The ultrasound (US) does not offer in a significant percentage of cases certain diagnostic data, and the unconventional imaging techniques such as computer tomography (CT) are yet less accessible. ERCP appeared in the last period as an optional method for the diagnosis of common bile duct stones, and, moreover, permitted the development of the nonsurgical treatment possibilities. ES and the extraction of stones revealed in this frame as preferable, especially in the high surgical risk cases. This study presents the results of ERCP performed in 547 and the therapeutic value of ES in 284 cases with CBD stones (conclusions of the ERCP and ES used in the clinical practice, in our clinic, in the last three years). In 81.69% cases ES managed the dezobstruction of the CBD, with a frequency of complications of 4.33% and a related mortality rate of 0.78%.

Adult↗