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Biomedical subjects

I Popescu

Publications and source records attributed to I Popescu.

13 recordsLinked to original sources

Phylloides tumours of the breast. A clinicopathologic study of 19 cases.

During a period of 29 years (1960-1989), 19 patients with benign (15 cases) or malignant (4 cases) phylloides tumours were seen at the Surgical Clinic of Fundeni Hospital. Fourteen patients were followed up for a period of 2 to 21 years (mean 9.3 years). Two patients with benign tumours developed malignant recurrences. The malignant potential could not be predicted by histologic criteria. Although 4 patients had malignant tumours and other 2 developed malignant recurrences later, no distant metastases and no death in the 14 patients available for follow up were observed. We believe that in large or malignant tumours simple mastectomy is the surgical treatment of choice, in most benign phylloides tumours a conservative approach (quadrantectomy or lumpectomy) may be considered of the patients can be adaquately followed up.

Adolescent

Somatostatin-like immunoreactivity in the cerebrospinal fluid of aged patients with Parkinson's disease. The effect of dopatherapy.

Cerebrospinal fluid (CSF) somatostatin concentrations were measured in 35 aged patients with Parkinson's disease (mean age, 79.5 years) and 11 control subjects (mean age, 82.3 years). In patients with Parkinson's disease the levels of somatostatin-like immunoreactivity were lower than in controls (P less than .02); these values were lowest in the untreated group. Somatostatin-like immunoreactivity levels in the CSF tended to increase with treatment but not significantly (P = .11). Somatostatin values were not correlated to age, sex, or duration of the disease. Somatostatin concentrations tended to be lower in more severely affected patients with higher scores on the Hoehn and Yahr (P = .13) and Webster staging scales (P = .13) and lower scores on Mini-Mental State (P = .10), but without statistical significance for these correlations.

Aged

The development of a glucose clamp.

A reliable control system was developed for clamping (i.e., holding at a steady level) the concentration of blood glucose in the hyperglycemic region of a normal nonanesthetized dog. The system is based upon, and hence largely validates, a mathematical model of the canine glucoregulatory mechanism which was assembled from the results of experiments in which radioisotopes were used. The operation of the clamp, however, does not require the use of radioisotopes. The glucose clamp is a tool which may be applicable clinically in the measurement of glucose turnover and in the laboratory in the study of the effects of glucose turnover of variable insulin with constant glucose levels.

Animals

Coronary heart disease and risk factors in some special type collectivities.

Transversal epidemiologic investigations carried out in different populations from several regions of Romania : Gurghiu Valley (lumberjacks from a mountain region), Danube Delta and Razelm lagoon complex (fishermen), and Bucharest have shown that, in spite of the high caloric value of food and even of a high intake of saturated fats, mean serum cholesterol is lower in the rural areas than in Bucharest, probably owing to the strenuous physical work. However, except myocardial infarction, more frequent in the urban than in the rural regions, the other forms of coronary heart disease have a relatively higher frequency in villages, particularly atrial fibrillation and ECG signs of ischemia. These findings might be explained by a greater prevalence of hypertension in these populations. It is concluded that the risk factors, which act synergically, depend on the complex structure of the "ecologic niche".

Adult

[Uremigenic cholangitis].

The treatment is presented, applied in a case of severe angiocholitis complicated by acute renal failure, known in the literature under the name of uremigenic angiocholitis. After three emergency hospitalizations, two interventions consisting in surgical drainage, de-shocking procedures, treatment of the hepato-renal failure and applications of wide-range antibiotics for the treatment of infection the angiocholitic phenomena disappeared and the hepato-renal failure is on the way to recovery. At this moment of the evolution the patient developed atrial fibrillation that was improved by Narcotan anesthesia. The efficiency is remarked of the treatment with large amounts of Furosemid in the anuric period, as a means to avoid extra-renal depuration.

Cholangitis

[Clinical and therapeutic findings cardiotuberosity on cancer].

In a total number of 1,109 cases of gastric carcinomas (encountered between 1949 and 1973) the authors have noted 122 cases with oeso-gastric localization in which 29 total gastrectomies were performed and 50 superior polar resections with oeso-gastric anastomosis (the mortality in both groups of patients was of 20%).

Adult

Petersen hernia.

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Aged

Decision analysis in the clinical and imaging diagnosis of acute cholecystitis.

The importance of clinical, laboratory and imaging data in the diagnosis of acute cholecystitis (AC) was studied in 825 patients with right upper quadrant pain hospitalized in the Surgical Clinic of the Fundeni Hospital--Bucharest, between January 1, 1986 and June 30, 1988. A number of 21 parameters were analysed in each case. Of these 825 patients, 259 were considered after surgery as AC. These 259 cases were divided, after the microscopical examination of the surgically-obtained specimens, into two groups: 1) pathologically confirmed AC (137 cases) and 2) pathologically non-confirmed AC (122 cases). The importance of every parameter in establishing a histologically confirmed diagnosis of AC was determined by the diagnostic probability calculated according to Bayes'theorem. The hierarchy of the value of parameters in the diagnosis of AC was based on their capacity to distinguish between the cases histologically confirmed and those detected on surgery, but without microscopically demonstrated changes of AC. The same decision criterion was used in building the decision trees in the exploration of the cases of presumed AC. In the 825 cases with right upper quadrant pain, the main and most frequent cause was chronic calculous cholecystitis (31.8%), followed by AC pathologically confirmed (16.6%), AC non-confirmed (14.7%) and chronic acalculous cholecystitis (12.4%). The most useful parameters in distinguishing between pathologically confirmed AC and pathologically non-confirmed AC were: 1) sudden onset of pain; 2) mild resistance to abdominal palpation; 3) frank peritoneal irritation; 4) stone impacted in the gallbladder neck (ultrasonography); 5) fever; 6) palpable gallbladder; 7) lithiasis (ultrasonography); 8) gallbladder wall with double outline (ultrasonography). Ultrasonography supplied a diagnostic probability of 85% for the correct diagnosis of AC in cases without a clinical picture suggestive for AC. The decision tree analysis supported the same conclusion: only ultrasonography gives a good distinction between pathologically confirmed AC and pathologically non-confirmed AC.

Acute Disease