Sonographic evaluation for peripheral pulmonary nodules during video-assisted thoracoscopic surgery.
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Biomedical subjects
Publications and source records attributed to G Carrella.
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This prospective study, based on 13 patients with single pulmonary nodules of width between 10 and 30 mm, was performed to verify the utility of intrathoracoscopic ultrasound to localize the single pulmonary nodule. In all 13 cases the ultrasound examination was able to localize the position of nodules, but the homogeneous hypoechoic pattern of nodules observed in ten of 13 cases did not prove whether the lesion was benign or malign. In conclusion, we can confirm that intrathoracoscopic ultrasound examination is a safe, risk-free and less expensive method of localizing the single pulmonary nodules.
The authors report a comparative study between endorectal ultrasonography (EU) and computed tomography (CT) in the preoperative assessment of 94 patients with rectal cancer. In evaluating the depth of wall penetration of rectal tumors EUS and CT offered good results: EUS confirmed a clear superiority with overall accuracy of 88.4% versus 80% of CT. On the contrary, in detecting lymph node metastases both techniques had poor results obtaining a correct diagnosis in 75.6% of the cases with EUS and in 69.4% of the cases with CT. In conclusion, the authors believe that EUS and CT may by very useful in the study of tumor penetration of the rectal wall; while in the study of lymph node involvement new techniques for a more accurate diagnosis are needed.
The Authors report their experience in the treatment of 92 cases of post-surgical biliary tract stones: 17 early cases (18.5%) were treated by percutaneous nonsurgical extraction (10 cases) or by operative procedures (7 cases); 75 late cases (81.5%) were surgically treated. The Authors summarize the results of the treatment, discussing advantages and disadvantages of the various techniques.
The authors report one year of clinical experience with imipenem-cilastatin, first antibiotic of thienamycin class, in the therapy and prophylaxis of postoperative infectious diseases. One hundred thirty four patients were treated with antibiotic therapy and 10 days after in 98.5% of cases a clinical remission of the disease was obtained; only in 2 patients the effect wasn't evaluable because they died for not drug-related causes. The prophylactic use of this antibiotic was limited to 34 patients with high risk of infectious diseases; only 3 cases (8.8%) showed bacterial contamination and one of them had clinical signs of disease which indicated the absolute need for antibiotic therapy. The Authors also emphasize the excellent results, the tolerability of the drug and the absence of side-effects.
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Stomitis due to non absorbable sutures is an increasingly common endoscopic finding. Personal experience has shown that this complication is not encountered when catgut sutures are employed in stomach operations. It is therefore recommmended that this or other absorbable material be used in gastric surgery. Stress is placed on the need to make use of absorbable threads for both inside and external sutures, since inflammation may be observed in the anastomosis even in cases where catgut is used fro mucosa-mucosa stitches and nonabsorbable material for serosaserosa sutures.
Carcinoma of the colon as a complication of chronic ulcerative colitis is relatively common, whereas malignant lymphoma is apparently rare. We report two cases of patients with malignant lymphoma complicating ulcerative colitis, a CD 30 + T-cell lymphoma of the intestine and a low grade B-cell non-Hodgkin's lymphoma of MALT type. It is important to be aware of the possibility of malignant lymphoma in ulcerative colitis in order to evaluate correctly any lymphoid infiltrate seen in a biopsy, especially when anti-inflammatory treatment seems to be ineffective or when symptoms change.