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Biomedical subjects

A Akovbiantz

Publications and source records attributed to A Akovbiantz.

At least 73 records · Page 4Linked to original sources
PubMed1979

[Indications and technic of subphrenic percutaneous drainage].

UNLABELLED: Introduction of percutaneous drainage (pcd) of subphrenic space in early subphrenic abscesses or fluid collections (e.g. bile) seems to be an alternative to common surgical treatment, if the indication is restricted to single contaminated abscesses. Septicemia, continued contamination, hematomas and multiple abscesses are contraindications. METHOD: A modified angiocatheter is placed directly or by a Seldinger technique. Adjunct antibiotic treatment is important. The advantages of subphrenic pcd are: simple low risk procedure in local anesthesia, rapid improvement of associated respiratory symptoms, no further contamination of the abdomen. 4 of 6 patients were treated successfully by this procedure.

Aged↗
PubMed1977

[A prospective study of post-operative bleeding from stress lesions. I. Epidemiology (author's transl)].

Among 5776 patients operated on under general anaesthesia there was an increased risk of postoperative gastro-intestinal bleeding from stress lesions among those aged over 70 years, after major surgery, or with complications such as hypovolaemia, septicaemia or respiratory failure (n = 551). In this group of patients the incidence of fatal haemorrhage was 0.5%. Stress lesions were a certain cause of bleeding from the gastro-intestinal tract in 5.1% and a probable one in 5.1%. Time of year, sex, past history of peptic ulcer, or anticoagulation did not increase the risk of bleeding.

Adult↗
PubMed1977

[Mediastinoscopy].

Explore the source record for details and available documents.

Esophageal Neoplasms↗
PubMed1977

[Respiratory complications in acute pancreatitis].

The analysis of 12 cases of severe hemorrhagic pancreatitis shows the importance of the detection of an early hypoxemia, which should be treated as soon as possible by a sufficient oxygenation. If the arterial p02 does not improve one should not delay the moment of endotracheal intubation with PEEP.

Acute Disease↗
PubMed1976

[Liver metastases: diagnostic value of blood tests, scintiscanning, and laparoscopy (author's transl)].

In 90 patients with known extra-hepatic malignancy the liver was examined for metastases. The diagnostic value of clinical information, blood examinations, 99mTc scintiscan, and laparoscopy for the diagnosis of the liver metastases was evaluated. Clinical data (age, sex, time since onset of symptoms and localisation of primary tumor) are of no diagnostic value. The most reliable blood tests are alkaline phosphatase (AP) and GOT. The probability of liver metastastases rises with increasingly abnormal values of AP and GOT. However, the probability is not much greater in cases with highly abnormal values than in cases with only moderate elevation of AP and GOT. Diagnostic accuracy of AP is optimal by using a cutoff point of 76 U/l (sensitivity 79%, specificity 64%). Bilirubin, prothrombin time, haemoglobin and blood sedimentation rate are of very little value. Combinations of AP with these blood tests does not improve diagnostic accuracy. Therefore, it is not useful to determine more blood tests than AP alone. Informed reading of liver scans has a specificity of 75% and a sensitivity of 91%. Blind reading of scans has a sensitivity of 94% and a specificity of 95%. This diagnostic accuracy cannot be improved by additional blood tests. Laparscopy has a sensitivity of 85% and a specificity of 95%. Scanning and laparoscopy are complementary methods. When optimal diagnostic accuracy is required both methods should be used.

Adult↗
PubMed1976

[Esophageal function after fundoplication (Nissen)].

Manometric, pH-metric, radiological and histological examinations were performed in 15 of 18 consecutive patients with gastro-esophageal reflux before and after fundoplication. In 13 of these 15 patients, reflux symptoms largely or completely disappeared after the operation. In the successfully operated patients, the reflux provocation test markedly improved but lower esophageal sphincter pressure did not rise. Six successfully operated patients in whom hiatus hernia was present after the operation and 7 patients without hernia had similar esophageal function tests. Therefore, success of surgery does not depend on resting pressure and position of the lower esophageal sphincter.

Adult↗
PubMed1976

[The non-surgical treatment of postoperatively retained hepato-choledochal calculi].

Postoperatively retained stones in the extrahepatic bile ducts can be chemically dissolved or removed mechanically. One method of chemically dissolving stones is sodium cholate perfusion through the T-tube. In the light of one personal case of successful treatment with sodium cholate, this relatively little-used method is described and recommended as a useful alternative to reoperation. Before reoperation for residual cholesterol gallstones in the extrahepatic bile ducts, dissolving of stones with sodium cholate should at least be attempted.

Aged↗
PubMed1975

[The diagnosis of liver metastases and primary hepatomas by means of scintigraphy, laparoscopy and laparotomy].

To evaluate the presence or absence of hepatic metastases or primary hepatoma 106 patients were examined by liver scintigram as well as laparoscopy or laparotomy. A definite diagnosis was established in all patients by histology, autopsy or observation of clinical course for at least one year. Only scintigrams resulted in false positive diagnosis (in 5%). False negative diagnoses were obtained in 29% of laparoscopies and in 36% of scintigrams when evaluated routinely with knowledge of the clinical findings and laboratory examinations. Analysis of the same scintigrams by an experienced examiner without knowledge of the clinical findings lowered the proportion of false negative scintigrams to 12%. In 5 patients with liver metastases or hepatoma coexisting in liver cirrhosis or advanced chronic liver congestion, both methods of examination gave false negative results.

Carcinoma, Hepatocellular↗
PubMed1975

[Intestinal hemangiomatosis].

The hemangiomas of the intestinal tract are rare benign tumors. The main clinical symptom of which is bleeding. The diagnosis of hemangiomatosis may present difficulties. In all cases of unexplained intestinal bleeding the possibility of hemangiomatosis should be considered. Should conventional radiographic studies and endoscopy, including colonoscopy, fail to locate precisely the source of bleeding, further angiographic studies are definitely indicated. Angiography is the key to the diagnosis of intestinal hemangiomatosis.

Aged↗