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Biomedical subjects

C Zollikofer

Publications and source records attributed to C Zollikofer.

61 records · Page 4Linked to original sources
PubMed1979

An essential view in coronary arteriography.

A significant stenosis of the left main coronary artery is associated with a significant mortality and is one of the major indications for aortocoronary bypass surgery. The diagnosis of this lesion on clinical grounds is inconsistent and should be established by angiography. All routine projections during coronary arteriography cause foreshortening of the left main coronary artery. Well-collimated anteroposterior and shallow right and left anterior oblique views show the main segment best. These views also show the proximal segments of circumflex and anterior descending branches, and should be routinely used during every coronary arteriogram.

Coronary Angiography↗
PubMed1979

Angiographic appearance of post-operative aortic valvar stenosis. Angiographic and haemodynamic correlation.

The classic angiographic appearance of a stenotic aortic valve is that of "dooming". Adequate relief of the obstruction can be obtained with an aortic valvotomy. It should be stressed, however, that even in the absence of an haemodynamically significant gradient, "dooming" of the aortic valve persists over many years and is explained by the presence of an anatomically bicuspid valve.

Adolescent↗
PubMed1979

[The reliability of needle puncture in the diagnosis of benign renal cysts? (author's transl)].

Confirmation of the diagnosis of a benign renal cyst through needle puncture is being reported with increased frequency. The puncture reveals either a clear, cloudy or bloody fluid, or no fluid at all. The authors analyze 88 of their own and 805 cyst punctures from the literature. A benign cyst was always present when the aspirated fluid was clear (763 cases). When the aspirated fluid was cloudy or bloody (130 cases) a malignant kidney tumor was found in 35% of the cases. Complications from cyst punctures are described. The authors feel that needle puncture is a highly effective method in the differential diagnosis of renal masses. It can also be used when multiple cysts are present on one or both sides.

Biopsy, Needle↗
PubMed1977

[Ultrasound for differentiated carcinoma of the thyroid, autonomous adenoma and thyroiditis (author's transl)].

The article deals with a number of thyroid abnormalities which produce similar sonographic patterns, characterised by a paucity of echos of low amplitude. It concerns three more or less circumscribed changes (differentiated carcinoma of the thyroid, autonomous adenoma and focal thyroiditis) and two diffuse thyroid conditions (sub-acute and lymphocytic diffuse thyroiditis, hyperthyroidism). Carcinoma of the thyroid is of particular interest. The distinguishing features and differential diagnosis are discussed.

Diagnosis, Differential↗
PubMed1976

[The scope of ultra sound in the diagnosis of thyroid disease (author's transl)].

Between 28, 9, 73 and 30, 9, 75, we examined the thyroid glands of 315 patients by means of ultra sound. In 166 patients the ultra sound findings could be compared with other methods of examination, particularly surgery, or with the subsequent clinical course. The value of ultra sould is stressed particularly in the differential diagnosis of solitary "cold" scintigraphic nodules and for wider routine use. The technique and value of this method are described.

Adenoma↗
PubMedDate not supplied

Experimental myocardial infarction in the closed-chest dog: a new technique.

The reliable and safe production of myocardial infarction in closed-chest animals is of paramount research interest. To date, the injection of particulate matter and the introduction of occlusive solid plugs have been described. Because of the limited size of the catheter, only small branches could be occluded, which resulted in a high incidence of mortality. A new simple technique is described that allows occlusion of a major coronary artery at a preselected site. An Ivalon (polyvinyl alcohol) plug compressed around the tip of an introducing wire is advanced through a selectively placed catheter into the coronary artery. It is felt in place for 5 minutes and assumes its original size upon contact with blood. Once the plug is re-expanded, the wire is withdrawn. The new technique was carried out successfully on nine dogs with no immediate fatality and myocardial infarction as demonstrated by cine ventriculography and histopathologic examination.

Animals↗