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Biomedical subjects

A Mussa

Publications and source records attributed to A Mussa.

82 records · Page 5Linked to original sources

[The technique of sentinel lymph nodes in patients with anus neoplasm].

Anal cancer is a rare neoplasm, representing 1-2% of all large bowel cancers. Surgical excision by abdominoperineal resection has been the standard treatment. In the 1920s and 1930s inguinal node dissection was included in the surgical management of these patients. In the 1950s it was evident that the morbidity associated with lymphnode dissection was much greater than any survival benefit and this procedure was abandoned. Since 1974 "multimodality treatment" with a combination of radiation and chemotherapy has become the standard treatment. Synchronous inguinal lymph node metastases occur in 10-25% of patients and metachronous metastases have been reported in 5-25% of cases. Inguinal lymph node metastases are an independent prognostic factor for local failure and overall mortality by a multivariate analysis of EORTC. In order to assess inguinal lymph node status we applied the sentinel node technique to patients affected by anal cancer. Fifteen patients were studied with a lymphoscintigraphy after peritumoral injection of 37 MBq of Tc-99m colloid. A surgical biopsy of sentinel node was performed in all patients with a detection rate of 100%. Inguinal metastases occurred in 4 patients (26.6%), and in 2 cases metastases were located bilaterally. Twelve patients (80%) were treated in local anesthesia and they were dismissed the same day of surgical procedure. No major complication occurred. Considering the strong correlation between prognosis and node involvement, we consider this technique an important and simple method for evaluating the lymph node status and for an adequate pre-treatment staging of anal carcinoma. fundamental in the choice of radiation plane. In particular inguinal radiotherapy could be reserved for N1 patients only. avoiding the morbidity related to this procedure in N0 patients. Further studies are required to confirm these results and a consistent follow-up will be necessary to evaluate long-term results particularly in those patients (N0) who have not been treated with prophylactic inguinal radiotherapy.

Adult↗

[Lymph node sentinel in gastric carcinoma: proposal of a multicenter GISCRIS (Gruppo Italiano per lo Studio della Chirurgia Radioguidata e dell'immunoscintigrafia) protocol].

Sentinel node biopsy has been widely adopted in the treatment of cutaneous melanoma and breast cancer. The ongoing controversy concerning the extension of lymphatic dissection in gastric cancer demonstrate that the optimal extent of lymphadenectomy has yet to be established, and underlines that the research in this area is needed to refine our knowledge and consequently our treatment of gastric tumors. In this paper the authors describe a multicentric protocol concerning the sentinel node research in early and advanced T1-T2 gastric cancer employing the blue dye method and lymphoscintigraphy by means of the endoscopic injection of Tc99m labeled nanocolloids. The aim of this protocol is to assess the clinical relevance of the sentinel node biopsy in selecting N+ patients in early gastric cancer, and the role of the same technique in detecting N2 positive patients in case of advanced gastric cancer. Assuming a confidence interval of +/- 5%, a sample of 100 recruited cases over three years is previewed.

Clinical Protocols↗

[Villous adenoma of the rectum. Review of the literature and personal experience].

Potential malignancy of rectal villous adenomas is referred as varying from 20 to 30%; an appropriate surgical excision is required in order to insure an effective cancer prophylaxis and to improve the accuracy of the pathologic assessment. The Authors review their series concerning 15 patients with one or more polyps of villous type, located at the lower third of the rectum and with precise indications for transanal excision. In 13 cases histology demonstrated the presence of an adenoma with different grade of dysplasia, which simply entered a follow-up together with a case of an adenoma with carcinoma in situ. The latter, because of the presence of invasive carcinoma, underwent radical surgery. No postoperative morbidity was observed. Recurrence rate was 8%. After an accurate review of the Literature, a radical management of the rectal villous tumour performed on routine basis seems unjustified. The Authors suggest the indication for a modern proceeding.

Adenoma↗

[Cytostatic therapy of metastatic breast cancer].

As complete as possible a picture of the current state of cytostatic chemotherapy in the treatment of metastatic breast carcinoma is offered. Attention is therefore mainly concentrated on application modalities of this form of therapy in relation to the clinical stage of the disease and to the use of other treatment possibilities. Methods and results of cytostatic therapy are then considered. The present situation is reviewed and the pharmacological and toxic aspects of prolonged antiblastic treatment are assessed. After outlining a number of special problems relating to the treatment of CNS and pleural metastases, the personal series is presented and results, which do not differ from other reported series, reported. In conclusion, stress is laid on the importance and effectiveness of cytostatic therapy in the treatment of metastatic breast carcinoma, but extended, controlled studies are also recommended.

Adrenal Cortex Hormones↗

[Advances in the treatment of gastroesophageal reflux. Intraoperative calibration of posterior fundoplication].

Posterior partial fundoplication can be as effective as total fundoplication in the long-term control of gastroesophageal reflux if the gastric fundus valve is encircled around the distal esophagus for no less than 270 degrees to obtain effective pressures in the newly built sphincter. In order to minimize the adverse effects, to reach constant results and to guarantee the reproducibility of the technique we have modified the 270 degrees posterior fundoplicatio (formerly described by Lind) according to the following principles: 1) the length of the gastric valve must be limited to 3 cm for each side of the esophagus; 2) the gastric valve must be fixed to the right and left side of the hiatal orifice by a single stitch; 3) the gastric valve must be calibrated with an intraoperative manometry, this allowing the standardization of the valve pressure to an average value of 35 mmHg by varying its wrapping angle; 4) the hiatal orifice must not be closed unless it is large enough for thoracic migration of the gastroplasty. Since 1984 to 1991 43 patients with proven gastroesophageal reflux not controlled by medical treatment were submitted to surgery. Twelve Nissen procedures (NP) and 31 posterior calibrated fundoplications (PCF) were performed; PCF seemed to be superior to NP in terms of postoperative mobility. After two years 20 patients treated with PCF were evaluated clinically, manometrically and by 24-hour pH monitoring. No dysphagia was reported; in two patients a pH-metric, asymptomatic relapse was observed, while one patient complained mild and occasional heartburn.(ABSTRACT TRUNCATED AT 250 WORDS)

Calibration↗