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Biomedical subjects

J Strauss

Publications and source records attributed to J Strauss.

At least 181 records · Page 10Linked to original sources
PubMed1978

Prolonged nitroprusside and intermittent hemodialysis as therapy for intractable hypertension.

Nitroprusside was used with intermittent hemodialysis over a 26-day period in a 6-year-old boy with intractable hypertension. Hemodialysis effectively removed thiocyanate from the blood, thus preventing its accumulation and subsequent toxic manifestations. Prolonged nitroprusside infusion maintained arterial blood pressure at acceptable levels until the patient became responsive to other antihypertensive therapy.

Child↗
PubMed1978

Takayasu's arteritis associated with glomerulonephritis. A case report.

Takayasu's disease is a nonspecific arteritis of unknown cause with predilection for the aortic arch and its branches; approximately 20% of those affected are children or adolescents, predominantly females. The purpose of this article is to report the case of a young girl in which the mode of presentation was microscopic hematuria and proteinuria. Subsequently, aortic valvular insufficiency developed and there was evidence of aortitis in the thoracic and abdominal aorta, as well as in the arch. All functional and anatomical cardiac derangements were documented by ultrasound and angiocardiography. Renal biopsies showed progressive glomerular involvement characterized by focal and segmental glomerulonephritis. It is postulated that a common immunologic mechanism was responsible for the aortic and glomerular lesions.

Adolescent↗
PubMed1978

Glomerular lesions in congenital endocardial fibroelastosis: clinical manifestations and ultrastructural studies in two patients.

Two children with congenital fibroelastosis and recurrent episodes of heart failure had overt proteinuria and hematuria; one also had a reversible nephrotic syndrome. Urinary manifestations persisted during periods of cardiac compensation. Renal biopsies revealed mesangial hyperplasia by light microscopy, identical ultrastructural lesions in the glomerular basement membrane, and deposits of fibrin in one of the biopsy specimens studied by immunofluorscence. These changes detected by electron microscopy may result in an increase in glomerular permeability independent of the renal hemodynamic disturbances associated with cardiac insufficiency. The progression of the lesions appears to be slow, although urinary manifestations may simulate an intercurrent glomerulonephritis. Pulmonary hypertension and renal venous stasis with glomerular intravascular coagulation were discussed as possible pathogenic mechanisms.

Basement Membrane↗
PubMed1977

Severe steroid-responsive nephrosis associated with hypersensitivity.

Sensitivity to cow's whole milk investigated in six patients with the idiopathic nephrotic and an elemental diet was given. After proteinuria had decreased to less than or equal to 500 mg/24 hours on consecutive days patients were challenged with cow's milk. This resulted in the return of significant proteinuria, oedema, and decreased urine volume together with a decrease in serum-IgG concentrations in four patients. Acute alteration of plasma C3 complement component accompanied milk challenge in all 6 patients. There were no consistent alterations in other immunoglobulin concentrations. Intradermal skin testing with cow's milk extract was positive in all patients. These results suggest that in some individuals clinical and biochemical manifestations of the nephrotic syndrome of childhood may be related to hypersensitivity of food products.

Adolescent↗
PubMed1977

[Sciatica caused by massive herniated disk].

On the basis of the surgical findings in 10 cases a description is given of a massive form of disc hernia corresponding to posterolateral displacement of the entire disc with the fibrous ring and cartilaginous surfaces. Such hernias were found in 7 cases of severe lumbar sciatica, including 3 with the cauda equina hemisyndrome and in 3 cases of simple lumbar sciatica operated on for their severe and refractory nature. It is useful to know this variety of hernia so that its uncommon aspect is not surprising on surgery. The term of massive hernia is proposed exclusively for these forms.

Adult↗
PubMed1976

Autologous immune complex nephritis associated with sickle cell trait: diagnosis of the haemoglobinopathy after renal structural and immunological studies.

A renal tubular epithelial antigen (RTE)--anti-RTE autologous immune complex nephritis associated with sickle cell anaemia (SS) has been reported, but immune complex nephritis has never been described in patients with sickle cell trait (SA). During investigation of a child with "asymptomatic proteinuria" cryoprecipitable complexes of RTE-anti-RTE were detected in the serum and granular deposits of RTE, immunoglobulins, and complement localised on the glomerular basement membranes. Morphological and ultrastructural studies showed increased mesangial matrix, sickled red blood cells in the glomeruli and vessels, and tubular and interstitial abnormalities. These findings prompted haemoglobin electrophoretic studies, which showed previously undiagnosed haemoglobin SA in this patient and her family. These observations suggest that nephritis mediated by similar immunopathogenic mechanisms may be associated with SS and SA haemoglobinopathy. Under some conditions patients with sickle cell trait may experience haemodynamic and oxygenation abnormalities, which may be aetiological factors in the immune complex nephritis associated with SS disease.

Adolescent↗
PubMed1976

Renal tissue oxygenation during hypoxic hypoxia.

No evidence was found to support the existence of changes in the intrarenal flow pattern among the different areas or of a compensatory redistribution of microcirculation in the renal cortex under hypoxia induced by breathing 10 % oxygen. It seems that under these conditions the kidney is able to preserve its basic metabolism by diminishing its oxygen consumption.

Animals↗
PubMed1976

Clinical response and plasma levels: effect of dose, dosage schedules, and drug interactions on plasma chlorpromazine levels.

Plasma chlorpromazine (CPZ) levels of 50 psychotic inpatients were measured by gas liquid chromatography; the clinical progress of 29 of these patients with acute psychoses was also assessed. CPZ levels of 50-300 ng/ml were usually associated with clinical improvement; there was also a relationship between CPZ levels and increases in certain symptoms. The 50-300 ng/ml level was best attained by doses of 400-800 mg/day. Trihexyphenidyl decreased plasma CPZ by a mean of 44.7% in 12 of 15 patients. A single 400-800-mg dose of CPZ at bedtime produced steady states equal to or better than those achieved with multiple doses. Those patients who failed to attain CPZ levels of more than 70 ng/ml despite doses of 400-1000 mg/day were receiving lithium throughout the study and had discharge diagnoses of manic-depressive psychosis, manic type, and schizo-affective schizophrenia--a finding with implications for future research.

Acute Disease↗
PubMed1975

Schizophrenia and stimulus intensity control.

A group pf 19 acute, medication-free schizophrenic patients was studied, using average-evoked responses (AERs) to four intensities of light. Comparison with age- and sex-matched normal controls and patients with bipolar affective disorders showed that schizophrenics had smaller AER amplitudes and either no increase or an actual decrease in amplitude with increasing stimulus intensity. Normal subjects and schizophrenic patients were discriminated with 71% accuracy using AER variables; normals, patients with bipolar disorders, and schizophrenic patients with 64% accuracy. Patients who evidenced this AER "reducing" pattern to a noticeable extent early in hospitalization showed greater improvement and tended to have relatively good premorbid histories.

Acute Disease↗