Catheterization and cardiovascular diagnosis
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Cathet Cardiovasc Diagn · Jan 1988
Pulsed Doppler evaluation of regurgitation in mitral valve prostheses.
Prosthetic mitral valve regurgitation was evaluated by both pulsed Doppler ultrasound and left ventriculography. Pulsed Doppler ultrasound was found to have only a 20% sensitivity in detecting prosthetic mitral valve regurgitation documented by left ventriculography. ⋯ Mitral insufficiency, especially when not severe, may be missed by this technique. Care must be taken in interpreting negative results from a pulsed Doppler ultrasound evaluation of a prosthetic mitral valve.
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Cathet Cardiovasc Diagn · Jan 1986
Case ReportsPlatypnea-orthodeoxia: assessment with a unique cardiac catheterization procedure.
A case of platypnea-orthodeoxia (orthostatic dyspnea and arterial desaturation) secondary to a patent foramen ovale in the absence of primary disease is presented. This case illustrates the use of recumbent and upright cardiac catheterization techniques for precise evaluation of the hemodynamic abnormality in this disorder.
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Cathet Cardiovasc Diagn · Jan 1983
Fever, chills, and hypotension following cardiac catheterization with single- and multiple-use disposable catheters.
Recognition of pyrogen reactions in patients studied with multiple-use cardiac catheters led to recommendations regarding their cleaning and ultimately to the expensive practice of discarding catheters after a single use. Primarily because of cost considerations, our laboratory continued to clean and reuse catheters through 1981. This afforded an opportunity to assess the endemic rate of adverse reactions associated with this practice. ⋯ There were no statistically significant increases in these reactions associated with the reuse of catheters. Bacterial infection did not appear responsible for these reactions, and it is possible that they were due to angiographic dye. We conclude that careful cleaning and reuse of catheters does not create an obvious increase in the risk of infection, and it appears to play a minor role, if any, in the development of other adverse reactions.
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Cathet Cardiovasc Diagn · Jan 1982
Percutaneous central venous catheterization performed by medical house officers: a prospective study.
We prospectively determined the complications of percutaneous central venous catheterizations performed by medical house officers in 302 patients. We also analyzed the factors affecting the success and complication rates of such invasive procedures. The central vein was successfully catheterized in 363 (77%) of 470 attempts. ⋯ No complications appeared to have a major adverse effect on a patient's clinical course. The inexperienced operator (fewer than 25 prior catheterizations) has a success rate equal to that of the more experienced operator (more than 25 prior catheterizations), but he may be more likely to produce a complication. Medical house officers can perform percutaneous central venous catheterizations with a high rate of success and a low risk to the patient.