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Biomedical subjects

G Benfatto

Publications and source records attributed to G Benfatto.

At least 19 recordsLinked to original sources
PubMed2006

[Gastrointestinal stromal tumors: report of three cases and review of the literature].

Gastrointestinal stromal tumours are the most common mesenchimal tumours of the gastrointestinal tract. Diagnosis of these tumours is difficult to establish, because symptoms are vague and traditional diagnostic tests are not specific. Natural history remains poorly defined and many criteria have been correlated with prognosis; for instance, some authors have found that GIST localization influences clinical behavior, that has not been confirmed by other authors; actually, tumour size, mitotic rate and complete resection seem to be the main prognostic factors. Surgical resection is the treatment of choice, with little efficacy reported for irradiation, conventional cytotoxic agents or both. Nevertheless, imatinib mesylate has recently demonstrated significant activity and tolerability in the treatment of malignant unresectable or metastatic GIST. Three cases of GIST, complicated by intestinal bleeding and intestinal obstruction respectively, are presented and a review of the literature is made.

Aged↗
PubMed2006

[Fibrin sealant in tension free hernioplasty: our experience].

The aim of this study was to prove that it is possible to fix mesh sutureless with Tissucol in the Lichtenstein procedure. The mesh fixation with Tissucol was done in 28 patients. Respect the traditional Lichtenstein technique, which was done in the remaining 28 patients, the advantages of using Tissucol are: no surgical trauma, total mesh fixation, no pain, reduced morbidity and reduced costs. Furthermore it is a safe and reproducible method. The results are promising, even if the verification goes more carried out with consisting casuistics and longer follow-up.

Aged↗
PubMed2004

[Retroperitoneal leiomyosarcoma: a case report].

The Authors report a rare case of retroperitoneal leiomyosarcoma in a 80 years woman with respiratory symptoms and right abdominal pain. A large neoplasm occupied the right abdomen, looking asymmetric. Upper abdominal CT showed a retroperitoneal neoplasm close to right kidney, liver, aponeurosis of right oblique muscles, producing a left-side dislocation of the intraabdominal organs. A surgical "en bloc" resection of the neoplasm was performed; neoplasm was plurilobed and capsulated. The histologic examination confirmed the diagnosis of leiomyosarcoma. The best treatment of these neoplasms is surgery, that in the last years has drawn advantage from more sensible and specific diagnostic procedures, which show a more radical surgical option. Though metastases are occasional, local recurrences can be taken into consideration and, after a careful tumoral re-staging, they can be resected once more. Therefore, a careful follow-up is necessary on the basis of neoplastic grading, extension and involvement of the closer structures.

Aged↗
PubMed2003

[The use of drainage in the "per primam" treatment of recurrent pilonidal cysts].

Recurrent pilonidal sinus treatment is still controversial, as more and more frequently methods used determine unpleasant discomforts to the patients ("open" method) or increase recurrences rate. According to this consideration, the Authors have made a review of their cases (27 patients with recurrences), selected by standardized criteria and treated by "en bloc" excision of all pathologic tissue and following closure "per primam" of the wound, previously placing an aspirative drainage, then removed after 2 or 3 days. Ordinary use of the drainage, antibiotic prophylaxis extended to postoperative sixth or seventh day and daily careful disinfection of the wound and surrounding skin until suture removal got them excellent results.

Adolescent↗
PubMed2002

[Day-hospital treatment of inguinal hernia].

Aim of the Authors' research was to evaluate advantages of day-surgery treatment for inguinal hernias. The study has been performed on a series of 138 patients, operated because of unrelapsed and uncomplicated monolateral inguinal hernia. Up-to-date therapeutic behaviour relating to hernia is the result of brilliant intuitions: technical order (tension-free repair), technological progresses (using new prosthetic materials), and refinement of anaesthesiological procedures (local and loco-regional anaesthesia). As regards surgical and anaesthesiological methods, general principles have been accepted by now from the most of the Authors. The new frontier of hernias' treatment is the possibility of operate in a day-hospital way: that means real advantages, both as regards patients' compliance and, in consideration of the high incidence of such pathology, as regards the high economic savings and more reasonable management of hospital stays. The significative increase of day-hospital hernioplastic operations in last years is due to standardization of restrictiveless criteria of choice for patients who can be treated with such modality.

Adolescent↗
PubMed2001

[Tension-free hernioplasty in the aged. A report of 94 cases].

BACKGROUND: Tension free inguinal hernioplasty has become the procedure of choice in the elderly. The operation of originally popularized by Lichtenstein and Shulman gives the best early result with low complication rates. METHODS: Between January 1991 and December 1996, 94 subjects over 70 with inguinal hernia were submitted to hernioplasty. The tension-free technique was adopted utilizing a polypropylene mesh. Peridural anesthesia was the method used in 67 procedures, local anesthesia in 27 procedures. RESULTS: The mean hospital stay was 48 hours (short stay surgery). Noteworthy general complications were not observed. Superficial wound infection occurred in 2 patients; superficial skin hematoma in 4 patients. No recurrences were observed (mean follow-up 60 months). The primary inguinal hernias in the aged is due to a progressive deterioration of the inguinal floor (collagenolylis, overpowers net collagen synthesis and deposition in the floor of the inguinal canal). CONCLUSIONS: Tension-free inguinal hernioplasty, originally popularized by Lichtenstein and Shulman, is simple to perform and gives excellent results with low complication rates. Current evidence suggests it as operation of choice in the elderly.

Age Factors↗
PubMed1999

Approximate renormalization-group transformation for Hamiltonian systems with three degrees of freedom.

We construct an approximate renormalization transformation that combines Kolmogorov-Arnol'd-Moser and renormalization-group techniques, to analyze instabilities in Hamiltonian systems with three degrees of freedom. This scheme is implemented both for isoenergetically nondegenerate and for degenerate Hamiltonians. For the spiral mean frequency vector, we find numerically that the iterations of the transformation on nondegenerate Hamiltonians tend to degenerate ones on the critical surface. As a consequence, isoenergetically degenerate and nondegenerate Hamiltonians belong to the same universality class, and thus the corresponding critical invariant tori have the same type of scaling properties. We numerically investigate the structure of the attracting set on the critical surface and find that it is a strange nonchaotic attractor. We compute exponents that characterize its universality class.

Journal Article↗
PubMed1994

[Synchronous tumors of the colon].

Although rare, synchronous tumors of the colon represent an important clinical manifestation of cancer of the colon. The paper reports a study carried out in 437 patients with the aim of evaluating the incidence of synchronous tumours and identifying the most useful diagnostic tools for diagnosis. On the basis of the results obtained the authors conclude that the incidence of synchronous tumours of the colon ranges between 1-3% and that in comparison to other methods pancolonoscopy enables a complete diagnosis for a prophylactic approach to multiple tumours.

Adenocarcinoma↗
PubMed1992

[Current etiopathogenic guides in pulmonary embolism].

Pulmonary embolism is still a dangerous postoperative complication in spite of antithrombotic prophylaxis. The paper examines the etiopathogenetic stages of the disease and stresses the relevance of Wircov's triad today, even in the light of recent acquisitions which highlight the role of endothelium as a modulator of the fibrinolytic process.

Adenocarcinoma↗
PubMedDate not supplied

[Acute cholecystitis in patients over 80 years of age: indication for immediate surgical treatment].

The Authors analyse the results of very early surgical treatment in 43 patients over 80 years of age. The severity of morphological changes in the gallbladder and complicated course of the disease are the main factors causing an unfavorable effect on the results of a later treatment. Echography allows, in a high percentage of cases, to confirm the clinical doubt of acute cholecystitis. Cholecystectomy was carried out in all the patients within the first 6 hours (very early surgery-VES). The overall mortality rate was 7%; the morbility rate was 18%.

Acute Disease↗
PubMedDate not supplied

Recurrent hernia of Petit's triangle: a case report.

The Authors describe a case of recurrent hernia of Petit's triangle in a 43-year-old man. The most salient feature of lumbar hernias is the difficulty of their treatment. Numerous, more or less complex techniques have been proposed for the repair of lumbar hernias. The classic procedure is that of Dowd (1907). Repair in this case consists of a flap of fascia and aponeurosis from the gluteus medius muscle which is elevated and rotated to cover the defect. Many modifications of this technique have been proposed. The modern prosthetics mesh materials allow a tension-free repair of lumbar hernias without distortion of the normal anatomy. Correct placement of a prosthetic mesh is relatively simple. Recurrences are due not to the material used, but to patches which are too small or too tight.

Adult↗
PubMedDate not supplied

[Use of PTF prosthesis in hernia in the elderly].

The paper reports the author's experience of the use intraperitoneal of Gore-Tex Dual Mesh Biomaterial in large incisional hernia operations in patients over seventy. From January 1999 to December 1999 we operated on 24 patients for treatment of abdominal wall defect. In all patients we used a Dual Mesh Plus Biomaterial. Overall mortality was 0. Morbility was 9.5%. Follow-up is too short for definitive considerations about the incidence of recurrences but our initial experience with this material encourages us to use it again for replacement of abdominal wall defects in the age.

Aged↗