Biomedical subjects

T Lazauskas

Publications and source records attributed to T Lazauskas.

3 recordsLinked to original sources

PubMed1994

[Large simple liver cyst treated laparoscopically].

Simple liver cysts of various sizes are present in 1% of the population. Most are found incidentally and require no treatment. However, in a few the cyst is symptomatic and requires surgery: celiotomy and unroofing of the cyst. A 64-year-old woman with a symptomatic, simple cyst of the liver underwent laparoscopic surgery. After an uneventful course she was discharged on the 3rd postoperative day. Simple liver cysts can be safely treated by laparoscopic surgery.

Cysts↗

PubMed1993

Posthernioplasty urinary retention: a noninvasive work-up for prediction.

The prognostic value of various subjective and objective noninvasive urological parameters was evaluated for their possible role in the prediction of post-hernioplasty urinary retention. In a prospective study, 35 patients aged 55-85 years without previous micturition complaints or urological surgery were evaluated 1 day prior to inguinal hernioplasty. This included medical history for modified Madsen subjective scoring profile, physical examination and uroflowmetry. Bladder capacity, residual urine and prostatic volume were measured by ultrasound. All patients underwent a similar method of hernioplasty, were closely followed 48 h postoperatively and any voiding difficulties or urinary retention were noted. Urinary retention occurred in 12 patients. None of the remaining 23 patients had urination difficulties. Comparing these two groups, we concluded that patient age, bladder capacity and prostatic volume have no prognostic value for potential postoperative urinary obstruction. On the other hand, obtaining a good anamnesis of obstructive and irritative symptoms for scoring, measuring maximal flow rate on urinary flowmetry and estimating residual urine volume may predict patients who are potentially at high risk for posthernioplasty urinary retention.

Aged↗

PubMedDate not supplied

Failure of thalidomide to inhibit tumor growth and angiogenesis in vivo.

Thalidomide was recently suggested to be angiogenesis-inhibitor following the demonstration of its activity in a rabbit cornea micropocket model. The purpose of the present study was to test its efficacy in solid tumors in mice. B16-F10 melanoma and CT-26 colon carcinoma cells were injected subcutaneously, intravenously and intraperitoneally, and mice received daily gavage of 0.3-1.0 mg thalidomide starting either two or 10 days following tumor cell injection. The tumors were measured and compared with controls. There was no growth retardation in CT-26 bearing mice nor in mice with pulmonary or peritoneal metastases of B16-F10 melanoma. In 3/7 groups of mice with SC B16-F10 tumors, growth retardation was demonstrated, however the difference was not statistically significant. All tumors eventually reached maximal size, similar to controls. Morphological evaluation of the blood vessels oriented towards the tumor revealed that in both thalidomide and control groups, all mice had developed an intact network of new blood vessels. In our model for the oral administration of thalidomide inhibition of tumor growth and angiogenesis did not occur. We hypothesize that the lack of sustained antiangiogenic response was either due to immune modulation or to tumor heterogeneity and adaptation.

Animals↗