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Biomedical subjects

D Tricoli

Publications and source records attributed to D Tricoli.

7 recordsLinked to original sources

[Autostatic hepatic retractor in orthotopic liver transplantation].

Liver transplantation (LT) is the treatment of choice for acute and chronic liver failure, for hepatocarcinoma and for same metabolic diseases. The shortage of donors leads to use over 60 tears-old donors and to develop new surgical technique to split the liver in 2 grafts. In our institution we set 2 targets: 1) to improve the number of liver transplantations using in situ split liver grafts and old donors, 2) to simplify the surgical technique. Since 1997 we performed 174 LT: 73 with whole size graft from under 60 years old donors, 42 with whole size graft from over 60 years old donors and 59 with split liver grafts. The autostatic hepatic retractor (AHR) was designed to make easier the hepatic hilar dissection and the vascular and biliar anastomoses. The particular steel plate of AHR lifts the inferior surface of the right and left hepatic lobes laying out the hilum to the porta hepatis; its malleability makes possible prolonged atraumatic use in accordance with the anatomical conformation of the liver. AHR is used in LT during the dissection of the left and right hepatic arteries, the dissection of the main portal trunk and its left and right branches, the isolation of the hepatic bile duct; moreover AHF is employed for portal, arterial and biliar anastomoses. In our experience the use of AHR was easy, safe and useful. AHR can help the surgeon during hepato-biliary surgery whenever hilar dissection is required.

Equipment Design↗

[Complications of mediterranean spotted fever].

Mediterranean spotted fever is an infectious disease due to Rickettsia conori transmitted to man by the dog tick Rhipicephalus sanguineus. The review of a consecutive series of 525 cases, admitted to Caltagirone hospital in the last 20 years, permits the classic clinical picture to be identified by fever, maculopapular eruption and tache noire, and any complications to be visualized. Usually the course of the disease is good, but 12.7% of our cases reported complications such as renal failure, myocarditis, pneumonia, encephalitis, anicteric hepatitis, gastrointestinal bleeding, anaemia and impaired glucose tolerance. The development of a systemic vasculite is the main pathogenetic factor in the origin of systemic complications. Early diagnosis and specific antibiotic treatment may reduce the risk of complications.

Acute Disease↗

Studies on mating plug of two sandfly species, Phlebotomus perniciosus and Phlebotomus papatasi (Diptera: Psychodidae).

A study was undertaken to interpret the nature and function of the "plug like formation" observed inside the spermathecae of many phlebotomine sandflies dissected during field surveys. Trials were carried out on two laboratory reared species, Phlebotomus perniciosus and P. papatasi. The results showed that the "plug like formation" is a true mating plug (MP) containing immotile sperms. Our studies showed also that the MP evolves differently according to the physiological state of the mated female. In blood-fed females, it persists 22-25 hrs post mating. Follows a period of 3-4 days in which the spermathecae acquire different form from that of the virgin spermathecae, but sperms are still undistinguishable. Active sperms appear only a few hours before oviposition. After oviposition, however, spermathecae are void as in the virgin female. Thus, during the complete gonotrophic cycle the spermathecae display five different forms: a) normal and void; b) showing MP; c) distended and yellowish, MP absent; d) active sperms present; e) normal and void. In unfed females, MP was observed to last for 6 days post copula. The results show also that MP is interfering with reinsemination.

Animals↗