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Biomedical subjects

M Puttini

Publications and source records attributed to M Puttini.

24 records · Page 2Linked to original sources
PubMedDate not supplied

Associated aneurysms of celiac axis, infrarenal aorta and right common iliac artery. (Report of a successful operated case).

A successful operated case of associated aneurysms of celiac axis, infrarenal aorta and right common iliac artery is reported. The hepatic artery was reanastomosed with the splanchnic artery after aneurysmectomy; the other two aneurysms were treated with resection and aorto-iliac by-pass. The unfrequent association of this type of arterial lesions is stressed. A brief world's literature review is also reported.

Aneurysm↗
PubMedDate not supplied

A critical re-appraisal of lymph-venous shunt in the management of massive ascites.

Lymph-venous shunt is one of most investigated procedures in the management of intractable ascites. However, there is considerable variation in the reported results. Personal experience with twenty-one operated cases reveals a dubious role for this intervention. Frequent anatomical variations and uncertain role and incidence of duct-end stenosis, in our opinion, reduces the efficacy of the procedure.

Adult↗
PubMedDate not supplied

Splenic artery aneurysms in portal hypertension.

In a group of 170 cirrhotic patients with portal hypertension an 8.8% incidence of splenic artery aneurysm was found. These patients have been analysed. Attention was focused on the possible pathogenic mechanisms. On the basis of our experience, ligature and resection is considered the best treatment for large aneurysms. In nine patients a small sized aneurysm was left in situ in order to avoid splenectomy; none of these patients developed aneurysm rupture during a follow-up period from 6 to 48 months.

Adult↗
PubMedDate not supplied

Extrahepatic portal obstruction: Clinical experience and surgical treatment in 105 patients.

While the whole incidence of portal thrombosis is, in our experience, similar to other literature reports, there is evidence, in the last years, of an increase of idiopathic adult onset and post-cirrhotic versus childhood onset extrahepatic portal obstruction. One hundred five patients, or 24.6% of a 426 total series of patients operated upon for portal hypertension, suffered from an extra-hepatic block (52.4% pre-hepatic, and 47.6 mixed post-cirrhotic obstruction). The total series of patients were classified according to portal involvement degree: 47.6% had portal, 46.7% massive porto-radicular and 5.8% radicular obstruction. Physiopathologic differences were found among patients with acute, recanalized, or recurrent thrombosis. The clinical picture in massive or post-cirrhotic block was generally more severe, due to repeated massive and lifethreating digestive hemorrhages. The width of portal tree involvement proportionally affects the possibility of surgical management, with particular regard to shunting procedures, which, in our experience, seem to be much more effective than disconnecting operations, in avoiding bleeding recurrences and warranting a better long term survival.

Adolescent↗
PubMedDate not supplied

Ultrastructural aspects of two different mast cell populations in human healthy gingival tissue.

The results of our recent microscopy studies clearly have demonstrated the constant presence of numerous metachromatic cells in healthy human gingival connective tissue. Despite the great number of studies on mast cell population in many human organs (lung, skin, uterus, and bowel), at the present time few are the studies regarding the morphostructural aspects of mast cells in the human gingiva. The aim of this study was to assess by transmission electron microscopy the presence of mast cells in the healthy human gingiva and to characterize the ultrastructural aspects of mast cells populations. 30 specimens of human gingival tissue were collected from 30 patients with informed consent. The samples were prepared for T.E.M. examination. In all the ultrathin sections observed we detected numerous and ubiquitarious mast cells. These exhibited several morphological types of cytoplasmic granules with characteristic subgranular architectural variety in shape and density. This allowed us to divide mast cells into two groups: cells with granules consisted of compact coiled scrolls, fine granular material and lattice--grafting configuration, and cells containing granules with discrete scrolls formed by more concentric lamellae and particulate structure. The two ultrastructural aspects observed correspond to McTC and McT of the international literature. Therefore in the human gingival connective tissue, like in other organs, two types of mast cells are clearly present. Surprisingly, the human gingival tissue shows, like the lung, McT as the prevailing subpopulation, in contrast to the skin, uterus and gastrointestinal submucosa where McTC prevail.

Adolescent↗