Biomedical subjects

F J Roth

Publications and source records attributed to F J Roth.

At least 73 records · Page 4Linked to original sources

PubMed1978

[Angiographic examinations of the stomach following Billroth II resections with special reference to the gastro-jejunostomy (author's transl)].

The arterial blood supply of the anastomosis in 6 stomach resected dogs (Billroth II) is examined by common angiographic technique in vivo, microangiography, and microscopy. In all animals there are at the site of the gastrojejunostomy bizarre tortuous vessels which cross the anastomosis. These arteries have a diameter between 50 to 2000 mu. They are newly formed vessels which cannot be demonstrated by common coeliaco- and mesentericography in animal experiments or in patients.

Angiography↗

PubMed1976

[Modified in situ perfusion of the kidney using balloon catheters].

Experiences with the in situ hypotherme perfusion in the operative treatment of calculus in kidneys and calices are reported. A modified technique is presented using an inflatable Swan-Ganz-ballon catheter for simultaneous blocking of renal blood flow and perfusion.

Adult↗

PubMed1976

[Changes of cutaneous blood flow after aortofemoral angiography (author's transl)].

Temperature versus time curves were registered during aortofemoral angiography in 48 patients. The cutaneous temperature was initially reduced in 46 of the patients. This phenomenon was interpreted as a temporary decrease of blood flow and can not be explained by hypertonicity of contrast media, but indicates additional pharmacodynamic effects. Reactive hyperemia depends on pathologic alterations of large and small vessels.

Contrast Media↗

PubMed1975

[The angiographic demonstration of a primary sarcoma of the pulmonary artery].

Following the findings of a primary sarcoma of the pulmonary artery and its angiographic demonstration, a search was made of the literature for this rare condition. Angiography is usually performed because a pulmonary embolism is suspected. It is best to inject contrast medium into the right atrium or ventricle. If an unusually large defect is demonstrated in the pulmonary artery, a primary malignant neoplasm should be considered in the differential diagnosis, particularly if the mass projects into the outflow tract of the right ventricle.

Aged↗

PubMed1975

[Partial thoracic renal ectopy (author's transl)].

Based on a case of his own the author surveys the literature of this rare condition. He discusses its clinical importance, the differential diagnosis from a lung shadow placed on the diaphragm and the distinction between congenital and posttraumatic displacement. An IVP will settle the diagnosis. Unless there are symptoms, operative correction is not needed.

Diagnosis, Differential↗

PubMed1975

[Coronary-angiographic demonstration of the dilating effect of dipyridamole on coronary arteries and its inhibition by caffeine (author's transl)].

Selective coronary cineangiographies are performed repeatedly in 13 mongrel dogs. The contrast medium itself has no demonstrable dilating effect upon the vessels. After the first injection of 0.2 mg/kg of dipyridamole the left anterior coronary artery is significantly (p less than 0.001) dilated, which is in contrast to some results described in literature. Immediately after an injection of high doses of caffeine (10 mg/kg) the previously enlarged coronary diameter decreases significantly (p less than 0.001). During the action of caffeine subsequent infections of dipyridamole result in a very small, or no change in coronary diameter. The coronary-dilating effect of dipyridamole can be inhibited by high doses of caffeine (10 mg/kg).

Angiocardiography↗

PubMed1974