Latest Articles
- Doppler echocardiographic assessment of aortic regurgitation: uses and limitations
The final determination of the severity of aortic regurgitation should involve a combination of the various Doppler techniques and the indices derived from them.
- Pelvic retroperitoneal mass in a 36-year-old man
The mass identified by CT extended into the pelvis and displaced the bladder, rectosigmoid colon, and rectum. Hydronephrosis with marked parenchymal loss of the left kidney indicated chronic obstruction of the left distal ureter.
- Circulating lipid and lipoprotein concentrations with oral estrogen-androgen hormone replacement therapy
A decrease in high-density lipoprotein cholesterol was observed in a group of postmenopausal women following oral estrogen-androgen therapy, suggesting that the potential benefits—sexual and psychological well-being— should be weighed against the potential cardiovascular risks associated with adverse lipid changes.
- Gardner’s hydrodynamic theory of syringomyelia revisited
How longitudinal, fluid-filled cavities form within the spinal cord has eluded researchers, though widely espoused theories have been put forth. The authors propose a unified theory based on recent MRI experience and on elements of other current theories.
- Differentiating Among Renal Stones
Recognizing the signs and symptoms of each type of renal stone disease provides clues to the underlying metabolic derangement and enables prompt intervention to reduce the chance of recurrence.
- Circadian rhythms and migraine
Migraine onset was found to parallel that of myocardial infarction and changes in platelet aggregability, plasma cortisol, and plasma catecholamines.