PubMed Health⌕ Search

Biomedical subjects

M B Furman

Publications and source records attributed to M B Furman.

5 recordsLinked to original sources

Incidence of intravascular penetration in transforaminal lumbosacral epidural steroid injections.

STUDY DESIGN: A prospective, observational, human, in vivo study. OBJECTIVES: To evaluate the incidence of vascular penetration during fluoroscopically guided, contrast-enhanced, transforaminal lumbar epidural steroid injections (ESIs) and determine whether a "flash" (blood in the needle hub) or aspiration of blood can be used to predict a vascular injection. SUMMARY OF BACKGROUND DATA: Incorrectly placed, intravascular lumbosacral spinal injections result in systemic medication flow that misses the desired target. No previous studies evaluate the incidence of vascular injections in transforaminal ESIs, nor the ability of flash to predict a vascular injection. METHODS: The incidence of flash or positive blood aspiration and the incidence of fluoroscopically confirmed vascular spread were prospectively observed in 670 patients treated with lumbosacral fluoroscopically guided transforaminal ESIs. Presence of a flash or positive aspiration was documented. Contrast was injected to determine whether the needle tip was intravascular. RESULTS: Seven hundred sixty-one transforaminal ESIs were included. The overall rate of intravascular injections was 11.2%. There was a statistically significant higher rate of intravascular injections (21.3%) noted with transforaminal ESIs performed at S1 (n = 178), compared with those at the lumbar levels (8.1%, n = 583). Using flash or positive blood aspirate to predict intravascular injections was 97.9% specific, but only 44.7% sensitive. CONCLUSIONS: There is a high incidence of intravascular injections in transforaminal ESIs that is significantly increased at S1. Using a flash or blood aspiration to predict an intravascular injection is not sensitive, and therefore a negative flash or aspiration is not reliable. Fluoroscopically guided procedures without contrast confirmation are instilling medications intravascularly and therefore not into the desired epidural location. This finding confirms the need for not only fluoroscopic guidance but also contrast injection instillation in lumbosacral transforaminal ESIs.

Adolescent↗

Experimental cross-validation of DSM-IV types of attention-deficit/hyperactivity disorder.

OBJECTIVE: To examine the discriminant validity of DSM-IV attention-deficit/hyperactivity disorder (ADHD) types by testing the hypothesis that types are associated with specific kinds of functional impairment and to compare overlap of DSM-IV and DSM-III-R ADHD. METHOD: Consecutive referrals (n = 692) to a pediatric subspecialty clinic for ADHD were classified into 1 of each of the 3 DSM-IV types of ADHD using parent and teacher checklist ratings of ADHD symptoms. The resulting types were compared on clinical correlates and on whether the children also met criteria for DSM-III-R ADHD. RESULTS: The validity of DSM-IV types was supported by dimension-specific impairment and other distinct correlates. Academic problems aggregated in the 2 types defined by extreme inattention, and externalizing problems aggregated in the 2 types defined by extreme hyperactivity. CONCLUSION: DSM-IV appeared superior to DSM-III-R in subcategorical homogeneity and in exhaustiveness (ability to classify all apparent cases).

Adolescent↗

Pemoline effects on children with ADHD: a time-response by dose-response analysis on classroom measures.

OBJECTIVE: To evaluate the dose-response by time-response characteristics of pemoline (Cylert) on dependent measures of behavior and academic performance in a laboratory classroom. METHOD: After a 2-week baseline, a double-blind crossover design was used to compare placebo, 18.75 mg, 37.5 mg, 75 mg, and 112.5 mg of pemoline, q.a.m., with each dose administered for 1 week. Medication was given at 9:00 A.M., and performance was measured beginning immediately and beginning 2, 4, and 6 hours after ingestion. The dependent measures included number of math problems completed correctly, teacher-recorded rates of on-task behavior and noncompliance, and teacher ratings on an Abbreviated Conners Teacher Rating Scale. RESULTS: There were linear effects of medication, with pemoline doses greater than 18.75 mg having an effect beginning 2 hours after ingestion and lasting through the seventh hour after ingestion. CONCLUSIONS: Results are contrasted with widespread misbeliefs regarding pemoline's time course and efficacy.

Attention Deficit Disorder with Hyperactivity↗

MACLimbs: human peripheral anatomy and kinesiology implemented by HyperCard.

Physicians in various subspecialties routinely perform physical examinations of the back and extremities utilizing their understanding of peripheral anatomy, extremity kinesiology, and neuro- musculo-ligamentous pathologies. We are developing a HyperCard computer application which combines text, graphics, and sound to teach, review, and test functional limb anatomy and kinesiology in an independent, non-confrontational, user-friendly environment. The software incorporates principles which maximize learning, runs on hardware accessible to most people, encourages independent learning and self evaluation, and utilizes links which take advantage of the network structure inherent to anatomy.

Anatomy↗