PubMed · 8139953
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
Z Tomlin. Emergency rations.. https://pubmed.ncbi.nlm.nih.gov/8139953/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
The short imaging time of 1/4 second, renders the new generation of multiple-slice spiral CT devices with ECG gating enables the investigation of the heart without disturbing motion artefacts. With this method, calcifications of the coronary arteries can be detected or excluded. Certain amounts of coronary "chalk" in asymptomatic patients with risk factors point to coronary artery disease and thus a need to modulate the risk factors. With the aid of intravenous injection of contrast medium during the examination, non-calcified plaques in the coronary arteries can also be visualized. A limiting factor is that the patient's heart rate should not exceed 60 beats per minute. Indications for this examination are visualization of coronary vessels with the aim of excluding coronary artery disease, pre-operative planning and monitoring of bypass vessels, and non-invasive follow-up after PTCA and stenting.
OBJECTIVES: This study was performed to investigate the causes of diffuse and aggressive intra-stent restenosis. BACKGROUND: Although restenosis is usually considered to be a dichotomous variable, there is clinical relevance to the severity of restenosis. It is not known which variables are predictive of diffuse or aggressive intra-stent restenosis. METHODS: A consecutive series of 456 coronary lesions with in-stent restenosis was evaluated for the type of restenosis using quantitative coronary angiography. Restenosis was defined as > or = 50% diameter stenosis at follow-up angiography, diffuse restenosis as a follow-up lesion length > or = 10 mm and aggressive restenosis as either an increase in lesion length from the original lesion or a restenotic narrowing tighter than the original. Clinical, anatomic and procedural characteristics were evaluated for lesions associated with these types of restenosis. RESULTS: Diffuse restenosis was associated with a smaller reference artery diameter, longer lesion length, female gender, longer stent length and the use of coil stents. Aggressive restenosis was more common in women, with the use of Wallstents and with long stent to lesion length ratios. Aggressive restenosis occurred earlier and was more closely associated with symptoms and myocardial infarctions than nonaggressive restenotic lesions. CONCLUSIONS: Markers for diffuse restenosis were also important markers for the presence of any restenosis. A long stent to lesion length ratio is an important marker for aggressive restenosis. When severe forms of in-stent restenosis occur, they tend to present earlier and with more symptoms, including myocardial infarction. More careful consideration of the type of in-stent restenosis may aid in identifying when alternative strategies may be useful.
We present a unique case of rapidly fatal native aortic-valve endocarditis due to Corynebacterium jeikeium, with inoculation as a complication of repeated femoral vascular access for coronary angiography.