Southern medical journal
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Southern medical journal · Oct 1990
ReviewA modification of the supraclavicular approach to the central circulation.
Traditional anterior or posterior triangle approaches to the central circulation may be at times unsuccessful in the patient whose anatomy makes cannulation difficult. We used a supraclavicular approach to cannulation of the central circulation in 100 patients for intraoperative monitoring or insertion of renal dialysis catheters. ⋯ Review of the literature reveals a similar history of success with variations of this approach. The supraclavicular approach is an easy cannulation technique for the inexperienced physician and a useful alternative to traditional approaches for the experienced physician.
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Southern medical journal · Oct 1990
Comparative StudyComparative study of plasma epinephrine and norepinephrine concentrations during hemodialysis: measurement by high-performance liquid chromatography versus radioenzymatic assay.
We measured epinephrine and norepinephrine levels simultaneously using two methods of detection of catecholamines in plasma--radioenzymatic assay and high-performance liquid chromatography with electrochemical detection. Measurements were made in 15 stable patients during hemodialysis. ⋯ No significant decrement in epinephrine or norepinephrine concentrations during the dialysis procedure was detected regardless of the method used. We conclude that the hemodialysis procedure does not affect the concentration of plasma catecholamines and that the two methods of detecting plasma catecholamines in patients with renal failure are equally accurate.