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Biomedical subjects

B Nagler

Publications and source records attributed to B Nagler.

At least 19 recordsLinked to original sources
PubMed1990

[Color-coded Doppler sonography of the kidney blood vessels in childhood. II. Pathological findings].

Pathologic flow profiles in renal arteries can be found in cardiovascular and renovascular disease. Obstructions of the left hart (aortic stenosis, hypoplastic left heart syndrome, coarctation of the aorta) cause diminished flow with low peak systolic velocities. In renal arteries of infants with leakage of the aortic "Windkessel" (persistent ductus arteriosus, truncus arteriosus communis etc.) a low diastolic amplitude can be found. Significant left-to-right shunts can lead to a diminished or even retrograde diastolic flow. In renal artery stenosis a high velocity jet with spectral broadening can be found in the region of the stenosis. Distal to the stenosis low blood flow velocities can be shown. In renal vein thrombosis the obstruction of the peripheral vessels cause a missing or even negative diastolic flow in the renal arteries, whereas venous blood flow is diminished or even missing. Kidney diseases with swelling of the organ (acute rejection of a transplanted kidney) can cause diminished, missing or even retrograde diastolic flow in the renal arteries dependent on the severity of the edema. These alterations can be used for the early diagnosis of acute rejection which offers the opportunity for early and efficient therapeutic management.

Cardiovascular Diseases↗
PubMed1966

Implantable electrical vesical stimulator: review of the literature and report of a successful case.

Considerable interest has been shown recently in electrical stimulation of the incompetent urinary bladder. Two types of bladder stimulation have been attempted in dogs and in humans: (a) stimulation of nervi erigentes and (b) direct stimulation of the detrusor urinae muscle.After several years of animal experimentation, a vesical stimulator, built on a new electronic principle, was implanted successfully in a paraplegic patient who has a complete post-traumatic lower motor neuron lesion. The stimulator has been working satisfactorily since November 1965.This stimulator could eventually also be used in purely sensory sacral lesions, in well-selected incomplete lower motor neuron lesions, and in flaccid detrusors of the myogenic type.A review of the literature up to the time of this report shows only a few encouraging but incomplete results in humans. The techniques and the complexities involved in this problem are discussed.

Adult↗