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Biomedical subjects

P Keto

Publications and source records attributed to P Keto.

47 records · Page 3Linked to original sources
PubMed1983

Areae gastricae in gastritis: lack of correlation between size and histology.

The area gastrica patterns of the stomach were studied using surgical specimens. From each of 15 patients, two specimens were obtained: one from the antrum and one from the corpus. These 30 specimens were photographed by stereomicroscope, and the areae gastricae were classified into three groups: none, 1-3 mm in diameter, and 4-6 mm in diameter. The same surgical specimens were studied histologically and the findings were compared with the area gastrica groups. Almost all specimens showed superficial and atrophic gastritis. No correlation between the different sizes of the areae gastricae and the histologic findings was found. The different area gastrica patterns have little value as indication of different types of gastritis.

Gastrectomy↗
PubMed1980

Metoclopramide in double contrast barium meal.

The effect of metoclopramide on gastric mucosal coating was studied in this randomized double blind study. One hundred and thirty consecutive patients underwent routine double contrast barium meal. The patients received 20 mg metoclopramide or a placebo before the examination. The visibility of the areae gastricae was used as an indicator of a good mucosal coating. The results indicate that metoclopramide does not have any statistically significant effect on mucosal coating in double contrast barium meal.

Barium Sulfate↗
PubMed1979

Areae gastricae and gastritis in double contrast barium meal.

The areae gastricae were studied in patients with different forms of gastritis and with normal gastric mucosa. The material consisted of 57 patients. First gastroscopy was done and biopsies were taken. The stomach was studied on the following day by the double contrast barium meal. The material was divided according to the gastroscopic and biopsy findings into the following groups: normal, superficial gastritis, mixed gastritis, and atrophic gastritis. In the analysis of the surface pattern, special attention was paid to the shape, size and defects of areae gastricae. Corpus and antrum were dealt with separately. In the normal material the areae gastricae were regular in shape, and the size was usually 1--3 mm. Irregular shape, bigger size and more frequent defect areas seemed to point to gastritis. Such changes were especially clear in atrophic gastritis. The significance of the areae gastricae in practice is discussed.

Adult↗
PubMed1979

Double contrast examination of the stomach compared with endoscopy.

The results of the double examination of the stomach in a series of 102 patients were compared with the findings at endoscopy. Nasogastric intubation was used to introduce the air into the stomach. Hypotonia was achieved mainly with glucagon. The radiologic error rate was 10 per cent, consisting of 7 per cent false negative and 3 per cent false positive findings. The diagnostic advantages of the double contrast technique over those of the conventional barium examination are discussed.

Contrast Media↗
PubMed1978

Radiologic demonstration of Meckel's diverticulum.

A case of bleeding Meckel's diverticulum with a positive barium meal examination, selective mesenteric arteriography and 99mTc-pertechnetate scanning is presented. Complementary radiologic examinations are needed in the visualization of Meckel's diverticulum due to difficulties in making the correct diagnosis.

Adult↗
PubMedDate not supplied

Observations on the behavior of barium sulfate contrast media in vitro.

The double contrast method in the examination of the stomach has made possible the radiologic diagnosis of the surface lesions of the mucosa, eg, erosions and early gastric cancer. Changes in the patterns of areae gastricae can be visualized with a good contrast medium. We used a new, more physiologic in vitro method to compare contrast media and study the amounts of adsorption, the degrees of visualization of areae gastricae, and the effects of antifoam solution and blood on media adsorption. EZ-HD surpassed other contrast media on the Scandinavian market in total adsorption on the mucosa and the visualization of areae gastricae. Blood significantly reduces the adsorption of all media, while antifoaming agents have little or no effect.

Adsorption↗
PubMedDate not supplied

Minimally invasive coronary artery bypass grafting: one-year follow-up.

BACKGROUND: Use of the minimally invasive direct coronary artery bypass grafting (MIDCAB) technique has been associated with excellent primary results, and sparing of resources has been assumed. There is, however, a limited amount of information available concerning the results of mid-term follow-up. The purpose of this study was to present 1-year follow-up results of our first 130 consecutive MIDCAB patients. METHODS: MIDCAB operations, defined as no sternotomy, no cardiopulmonary bypass, and no aortic manipulation were started in our clinic in February 1996. One hundred thirty patients requiring invasive treatment of coronary artery disease who were not suitable for percutaneous transluminal angioplasty were included in this series. The main outcome measures were mortality, the need for subsequent invasive treatment, and 1-year NYHA classification. RESULTS: There was one hospital death, but during the first-year follow-up, four additional deaths occurred and three patients were reoperated on with conventional techniques. Five percutaneous transluminal coronary angioplasties (PTCAs) had to be performed, two because of anastomosic stenosis. Additionally, cardiac- or operation-related symptoms caused a total of 27 hospital visits among 23 patients during the first-year follow-up. Angiographic left internal thoracic artery (LITA)-left anterior descending artery (LAD) patency was 97.4% (37/38) (confidence interval [CI] ranged from 86.2% to 99.9%) at 3 months. After 1 year, 86.9% (113/130) of the patients were without symptoms. A clear improvement of the follow-up results was observed to be associated with increased experience during the study period. CONCLUSIONS: MIDCAB operations, after some experience, can be performed with relatively good outcome. However, special attention should be directed to determination of correct anastomosic site and to avoiding anastomosic stenosis. We also recommend extended mobilization of the ITA and use of specific stabilizers.

Angioplasty, Balloon, Coronary↗