PubMed Health⌕ Search

Biomedical subjects

F A Krumlovsky

Publications and source records attributed to F A Krumlovsky.

At least 19 recordsLinked to original sources
PubMed1994

Low-dose prazosin in patients with muscle cramps during hemodialysis.

Sympathetic nervous system response to volume stress is more marked in patients with frequent hemodialysis-associated skeletal muscle cramps than in most patients who cramp infrequently. Accordingly, we conducted a double-blind, randomized, and balanced trial in which five patients with frequent hemodialysis-associated cramps were given either placebo or a prazosin dose (ranging from 0.25 to 1.0 mg) at the start of 16 dialysis sessions. These low doses of prazosin appeared to reduce cramp frequency in four of the five patients, and patient-stratified multiple logistic regression analysis indicated an aggregate 58% reduction in cramp frequency (p = 0.030). On the other hand, prazosin therapy was associated with an increased incidence of hypotension that required therapeutic intervention both during (p = 0.033) and after (p = 0.010) hemodialysis. Our findings support the hypothesis that sympathetic activation plays a pathogenetic role in hemodialysis-associated skeletal muscle cramps and suggest that pharmacologic attenuation of this response may be of therapeutic benefit.

Adult↗
PubMed1990

Failure of deferoxamine to improve iron overload in chronic hemodialysis patients.

We prospectively studied the in vivo dialytic clearance of iron after deferoxamine (DFO) administration in four stable iron-overloaded chronic hemodialysis patients by quantifying iron concentration in blood entering and leaving the dialyzer and in dialysate after infusions of DFO. No significant arteriovenous iron differences were demonstrated. The mean ratio of venous to arterial iron approached identity at 1.005. All dialysate concentrates used contained large amounts of iron (300-610 micrograms/dl). No changes in efferent versus afferent dialysate iron concentration could be demonstrated. We conclude (a) iron removal during dialysis with DFO was not demonstrated; (b) the dialysate concentrate tested contained large amounts of iron; (c) in view of potentially significant toxicity, and lack of demonstrable therapeutic benefit, caution in prescribing DFO chelation therapy for iron overload is recommended.

Deferoxamine↗
PubMed1988

Central nervous system and cardiac manifestations of hydrochlorothiazide overdosage; treatment with hemodialysis.

A patient with end-stage renal failure inadvertently received high-dose hydrochlorothiazide as treatment for hypertension, resulting in CNS and cardiac toxicity. These toxic manifestations were successfully treated with hemodialysis. A hydrochlorothiazide dialysance of 62.5 mL/min was demonstrated. The possibility of hydrochlorothiazide toxicity should be considered in any patient with renal insufficiency who exhibits unexplained arrhythmias or symptoms related to the CNS.

Aged↗
PubMed1980

Symptomatic Acinetobacter calcoaceticus peritonitis. "A complication of peritoneal dialysis".

Acinetobacter Calcoaceticus peritonitis was seen during the course of peritoneal dialysis in two patients with end-stage kidney disease within a 3-month period. In one patient, the isolate was A. Calcoaceticus Varient Anitratus (formerly Herellea Vaginicola) and in the other it was A. Calcoaceticus Lwoffi (formerly Mima Polymorpha). Both were successfully treated with continuous peritoneal antibiotic lavage.

Acinetobacter Infections↗
PubMed1980

Elevated beta-thromboglobulin in patients with chronic renal failure: effect of hemodialysis.

Elevated plasma concentrations of beta-thromboglobulin were observed in 25 consecutive patients with chronic renal failure. Further increases in this platelet protein were observed during hemodialysis but not during peritoneal dialysis. The hemodialysis-induced increases were not prevented by either aspirin or dipyridamole, a fact which suggested that release of this protein was not dependent on platelet functional activity. Measurement of beta-thromboglobulin provides a sensitive indicator of platelet disruption during hemodialysis.

Adolescent↗