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Biomedical subjects

F Vecina

Publications and source records attributed to F Vecina.

6 recordsLinked to original sources
PubMed2000

[Shock? Stop!].

Explore the source record for details and available documents.

Adrenal Gland Neoplasms↗
PubMed1994

[Continuous guidance for venous punctures using a new pulsed Doppler probe: efficiency, safety].

Serious complications may occur after "blind" profound venous puncture in intensive care units. To secure these punctures, we designed a new fingertip pulsed Doppler (FPD) 5 MHz probe with a lateral to center indentation to guide the needle into the ultrasonic flux. A specific ultrasound analyzer indicating depth and diameter of the vessel was made for this use. The material was first tested in an experimental animal study. Results of animal venous punctures were successful 20/21. This material was then tested on patients with previous failure of "blind" punctures: results of 4 FPD punctures were successful in all 12 cases but one (catheterization not completed). We started a prospective multi-unit randomized study with various operators (junior residents, senior staff members), compared the success rate and type, the procedure duration of blind standard versus FPD punctures. We conclude in the safety and easy use of the FPD for central venous punctures.

Animals↗
PubMed1994

[Tunneled jugular catheters in chronic hemodialysis: report from a Center apropos of 101 cases].

Since 1984, internal jugular vein cannulation (I.J.V.C.) was performed in our Center for ESRD patients. 202 catheters were implanted in 79 patients. Our population was divided in 2 groups: group I corresponding to a rescue procedure for the chronic vascular access failure, group II corresponding to chronic implantation. Outcome analysis indicate the follows results: in both groups, the first I.J.V.C. withdrawal cause was a functional AV fistula. Infections were observed only in group II. Thrombosis is not infrequent requiring fibrinolytic drugs with a 54 FF per patient year additive cost. A special nurse training protocol is also required to reduce the thrombosis incidence. Accidental withdrawal occurred in 11% cases of group II. This observation underlines the need of better fixation devices.

Adult↗
PubMed1990

Effects of pancreastatin on pancreatic hormone secretion in the dog.

In the anaesthetized dog, porcine pancreastatin (98 pmol/min) was infused for 10 min into the pancreaticoduodenal artery either alone or during infusion of glucose. Blood was sampled from the pancreaticoduodenal vein. We found that pancreastatin inhibited pancreatic insulin output only under normoglycaemic conditions. Furthermore, pancreastatin significantly stimulated pancreatic glucagon and somatostatin outputs both during normo- and hyperglycaemic conditions. Our results show that pancreastatin has the capability to affect directly the three pancreatic hormone secretions in dogs.

Animals↗