Pulmonary embolectomy. A lesson in aggressive persistence.
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Cataract Extraction↗
Biomedical subjects
W Ruf
Publications and source records attributed to W Ruf.
[Tension fixation of rupture of the symphysis with woven polydioxanone sutures].
In seven patients (mean age 22 years) with injuries of the pelvic ring, the rupture of the symphysis was treated by polydioxanone ligaments. Complete rupture of the ileosacral joint was treated twice by additional external fixation, twice a compression screw osteosynthesis was applied. Incomplete iliosacral rupture in another three cases was not operated. Patients were treated functionally without signs of loosening or instability. After a control examination after 5 months all patients were free of symptoms in the area of the symphysis. Infection of the operation area did not accur. In our opinion the advantages of this method are simple operative technique, reduced risk of infection and no need for removal of metallic implants. Our excellent initial experience with synthetic PDS ligaments in operative treatment of symphysis ruptur seem to justify its application for other injuries like iliosacral or acromioclavicular rupture.
Adolescent↗
Hickman catheter dislodgement due to pendulous breasts.
Dislodgement of Hickman, Broviac, and Mediport catheters is a rare but recognized complication. To date, no specific etiology for this has been cited. We present five cases of dislodgement due to positional changes in large-breasted women and one man with gynecomastia. Apparently, motion in the subcutaneous tissue secondary to gravitational forces on large breasts causes downward and outward traction on the subcutaneous portion of the catheter. Variations in placement technique to help avoid this complication are described.
Adult↗
Influence of prostaglandin A1 on renal filtration, hemodynamics and excretion. Investigations in chronically instrumented conscious dogs on a low- and high-sodium diet.
The effect on renal function of a 210-min infusion of PGA1 into the aorta of 10 conscious beagle dogs has been investigated. In the sodium-replete group, PGA1 caused an increase in the glomerular filtration rate (GFR) (24%), renal blood flow (17%) and sodium excretion (20%). By contrast, in the sodium-depleted group, PGA1 caused a considerable reduction of GFR (25%) and sodium excretion (51%). In this group, baseline renal blood flow was lower, and there was no further reduction during PGA1 infusion. Fractional sodium excretion was unchanged in the sodium-replete dogs, but was reduced in the sodium-deplete state. Plasma renin activity was markedly elevated and further increased in the sodium-deplete group, but it was nearly unchanged in the sodium-replete group. This difference in renal response to exogenous PGA1 might be due to interaction with the renin-angiotensin system, which was markedly stimulated by sodium depletion and additionally by prostaglandin infusion.
Animals↗