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Biomedical subjects

C T Teague

Publications and source records attributed to C T Teague.

16 recordsLinked to original sources
PubMed1980

Automated data management for clinicians. A low-cost approach.

A self-instructional general purpose clinical data management system using a low-cost microcomputer has been developed specifically for use by clinicians not famililar with computers. The system was designed to resemble the traditional manual method of data analysis, while the time-consuming and repetitive procedures intrinsic to the manual method have been replaced by automation. This system has been used to analyze a variety of clinical problems, including patient chart review, collation of laboratory research data, initiating a vascular registry, and calculations with trending of physiological and laboratory data in the intensive care unit. User acceptance has been uniformly positive.

Computers↗
PubMed1980

Choice of electrode in electromyography of the external urethral and anal sphincters.

The needle, anal and catheter methods of performing simultaneous cystometry and pelvic floor electromyography were compared in 29 patients. Urethral sphincter electromyographic recordings consistently were satisfactory with a needle electrode, whereas the catheter surface electrode caused recording artifacts and was fragile. Anal sphincter electromyography was more reliable with a needle electrode than with an anal surface electrode.

Electrodes↗
PubMed1979

Laboratory comparison of urethral profilometry techniques.

A comparison of urethral pressure profiles performed with the air infusion, water infusion, membrane catheter, and transducer tip catheter techniques was made in a canine model. The gas and water infusion methods gave statistically identical results if the gas studies were performed at flow rates of 100 ml./min. and pull rates of 5 cm./min. The transducer tip catheter and the gas and water infusion techniques gave accurate recordings of peak urethral pressure but were incapable of detecting multiple areas of urethral compression. The transducer tip catheter measurements often were difficult to interpret because of rotation and flexion artifact. The membrane catheter was capable of recording multiple areas of urethral compression but gave spuriously high recordings of peak urethral pressure. We conclude that none of the methods tested will give accurate recordings of urethral pressure in all clinical situations.

Animals↗
PubMed1978

Effect of baclofen and dantrolene on bladder stimulator-induced detrusor-sphincter dyssynergia in dogs.

The effect of baclofen (Lioresal) and dantrolene (Dantrium) on bladder stimulation-induced detrusor-sphincter dyssynergia was studied in normal and chronic T-10 paraplegic dogs. Dantrolene, which depresses skeletal muscle contractility, had little effect on electrically evoked contractions of the urethral sphincter in dogs. Baclofen, which acts centrally by potentiating presynaptic inhibition, depressed the pudendal to pudendal nerve reflex and decreased urethral resistance during bladder stimulation.

Aminobutyrates↗
PubMed1978

Comparative study of air and water measurements of peak and stabilized static urethral pressures.

Air and water were forced through female dogs' urethras to determine static urethral pressures. The cauda equina was sectioned to eliminate reflex responses to urethral manipulation, and the urethras were compressed circumferentially with inflatable Silastic cuffs. The peak and stabilized urethral pressures were recorded at flow rates between 20 and 150 ml./min. while cuff pressures were varied between 0 and 100 cm. of water. When the fluid recordings of static urethral pressure were compared with Millar transducer tip catheter measurements of urethral pressure, there were no statistically significant differences between the air cystometer, aneroid sphygmomanometer, and Millar catheter recordings of urethral pressure. At these high flow rates, the water recordings of urethral pressure were significantly higher than the Millar catheter determinations of static uretheral pressure.

Air↗
PubMed1978

A laboratory evaluation of a new hydraulic incontinence device.

A new hydraulic incontinence device is described. The device is physiologic because it can be deflated to allow resistance-free voiding and it is designed to respond instantaneously to fluctuations in intra-abdominal pressure, irrespective of whether the bulb is placed at the level of the bulbous urethra or the bladder neck. The device is simple, consisting only of a urethral cuff, an abdominal reservoir and 1 pump containing a single valve.

Abdomen↗
PubMed1977

Electric pelvic floor stimulation. Mechanism of action.

This canine study delineates two mechanisms of action for electric pelvic floor stimulation. The electric stimulation increases urethral resistance by activating the pelvic floor skeletal muscle. Direct pudendal nerve stimulation is the most effective method for applying the electric stimulus. The two electric devices presently employed clinically, the pelvic floor stimulator and the transrectal stimulator, are less effective methods for increasing pelvic floor skeletal muscle contraction. Electric stimulation also activates a pudendal-to-pelvic nerve reflex that depresses or eliminates uninhibited detrusor contractions.

Animals↗