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Biomedical subjects

G Bargon

Publications and source records attributed to G Bargon.

At least 37 records · Page 2Linked to original sources
PubMed1985

[Arterial DSA of liver masses].

A total of 58 patients underwent intra-arterial hepatic DSA. 42 patients with hepatic masses were preselected by ultrasound or CT. In addition a conventional arteriography was performed in 34 of 58 cases. DSA without diagnostic quality occurred in 4 cases, in 4 other cases a diffuse metastatic disease of the liver was not detected in spite of good image quality. Comparing DSA with conventional angiograms our results demonstrated that DSA had a reduced imaging of intrahepatic small vessels but without negative influence on diagnostic value. Intra-hepatic DSA imaging could be improved using on-line image documentation, small size of image-intensifier and contrast material with an iodine concentration of 300 mg/ml. Advantages of DSA were observed in vascularized tumors and indirect splenoportograms. Contrast material with an iodine concentration of 200 mg/ml was sufficient for hepatic "vascular mapping" or demonstration of vascular diseases including main arteries.

Adult↗
PubMed1985

Transvenous digital subtraction angiography (DSA) for diagnostic control following percutaneous transluminal angioplasty (PTA) in patients with renovascular hypertension.

Transvenous digital subtraction angiography (DSA) of the kidneys has shown to be useful in detection of renovascular abnormalities in hypertensive patients. In this study DSA was performed in 27 patients (fibrom. dyspl. n = 12, arterioscl. n = 15) following percutaneous transluminal angioplasty (PTA) of renal artery stenosis. Concerning PTA-effect on blood pressure, patients were classified in 3 groups (normal n = 13, improved n = 10, failure n = 4). DSA images and simultaneously determined effective renal plasma flow (ERPF) were correlated with response of blood pressure to PTA. The results demonstrate the usefulness and accuracy of transvenous renal DSA-imaging in follow-up studies. Normal ERPF correlated with a completely re-opened renal artery and normal renal parenchyma in DSA in normotensive patients. In patients with persistent or recurrent hypertension (n = 14) ERPF was reduced in 10 cases and DSA demonstrated disorders such as peripheral renal infarction or reduced renal size (n = 6) and re-stenosis (n = 2).

Adult↗
PubMed1985

[Conventional angiography and digital subtraction angiography in arterial occlusive disease of the extracranial branches of cerebral arteries].

In this paper the advantages and disadvantages of different arteriographic methods, i.e. conventional angiography, intraarterial DSA and intravenous DSA, are discussed for the purpose of examining the extracranial supraaortic branches. The analysis of individual vascular regions in arteriography of the aortic arch is assessed. In addiction, the value of i.v. DSA is demonstrated, comparing own results with data in the literature. Indications of the three different angiographic techniques are outlined.

Angiography↗
PubMed1984

[Intravenous digital subtraction angiography for imaging pulmonary vessels].

The experience in venous digital subtraction angiography (DSA) of the pulmonary vessels is presented in order to evaluate the new method. The results of angiographic examinations in 30 patients could be classified as follows: embolic lung disease (n = 13), atelectatic disease of left lower lobe (n = 3), findings of arteritis in right upper lobe (n = 1), arteriographic alterations due to chronic pulmonary emphysema (n = 2), normal lung vessels (n = 10), and failure of examination (n = 1). Using this new angiographic method it was possible to analyze embolic clots in the subsegmental arteries and total occlusions of the peripheral small vessels. The advantage of DSA compared with the conventional technique is evident: No complications due to transcardial catheters, short examination period, easy handling of the technique, and small number of images.

Adult↗
PubMed1984

[Drug-induced changes in the lungs].

The author reviews changes in the lung induced by pharmacotherapy. Attention is drawn to the differences in mode of reaction of the individual drug noxae. Roentgenological changes are demonstrated by means of x-ray film examples and the various roentgenological signs are pointed out. In accordance with the classification by v. Wichert, the drugs are tabulated according to the pathogenetic mechanisms triggered by them at the lung parenchyma, the tabulation being arranged in groups. Wrong interpretations of the changes in the lung can be avoided by means of intensive co-operation between the clinician and the radiologist and by including the possibility of lung damage caused by drugs in the diagnostic deliberations.

Albumins↗
PubMed1983

[Value of the normal chest x-ray in the anamnestic and clinical suspicion of traumatic aortic rupture].

A retrospective study of plain radiographic findings in 11 patients with traumatic rupture of the aorta was conducted, and the results compared with the incidence of numerous chest x-rays signs previously described in 294 cases of angiographically proven thoracic aorta dissection. It is concluded that positive plain radiographic signs obtained from patients with blunt chest trauma reveal high sensitivity and may thus be used as an indication for emergency aortography. However, since this procedure lacks 100% specificity even those patients with normal x-ray findings but clinically and/or anamnestically adequate thoracic trauma should be submitted to aortography.

Aorta, Thoracic↗
PubMed1983

[Panarteritis nodosa--a urologic problem?].

A case of panarteritis nodosa with renal and intraabdominal symptoms is described. Diagnosis of this visceral form of this rare disease is extremely difficult, and in the absence of subcutaneous granulomata can only be made on angiography. Depending on the site affected, visceral disease can lead to life threatening internal haemorrhage which in most cases has to be treated surgically.

Adult↗
PubMed1982

Pre-interventional prognostic value of renal endocrine, hemodynamic and arteriographic parameters in hypertensive patients with uni- and bilateral renal artery stenosis: a ten years' experience.

In order to improve pre-interventional prognosis of blood pressure normalization, in patients normalization, in patients with angiographically proven uni- (n = 75) and bilateral (n = 38) renal artery stenosis, (RAS) evaluation of renal venous and peripheral renin activity including stimulative procedures and Saralasin-infusion-test was carried out. In addition selective renal arteriographic, hemodynamic and pharmacodynamic (133 xe-washout) investigations were performed. The data were correlated with operative results concerning response of blood pressure to surgical treatment in 54 patients with uni- and 30 patients with bilateral RAS. Our results suggest that a postoperative normalization of blood pressure can only be expected if pre-interventional selective arteriograms reveal a normal vascular tree accompanied with normal cortical flow rates of both kidneys in uni- and bilateral RAS. Selective renin determinations, stimulative procedures of the renin-angiotensin system and application of angiotensin antagonists are only of value for selection of patients.

Adolescent↗
PubMed1982

[Periostal hypertrophic osteopathy of bones (long bones) in colitis ulcerosa in adolescents (author's transl)].

The article reports on a 14-year old girl with periostal new formation of bones at the long bones of the lower arms, the femora and the lower legs the individual phalanges and metacarpalia after colitis ulcerosa which had lasted for several years and had progressed stagewise. After a clinically recorded new attack the periostal new formations of bone progressed. Some time after the last attack of colitis the periostal changes in the bones partially receded. The article discusses the hypothetic explanations aiming at interpreting the pathogenesis of hypertrophic osteoarthropathies and periostoses, as given in the literature.

Adolescent↗