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Biomedical subjects

R C Newman

Publications and source records attributed to R C Newman.

At least 37 records · Page 2Linked to original sources
PubMed1988

Ureteral access system. Technique and results.

Suggestions for the safe use of the ureteral access set are outlined in Table 1. Although this tool is valuable in selected circumstances, great care must be exercised in its use. In the series described, the incidence of perforation was 31 per cent. Although no long-term sequelae are known to have occurred, the potential for such problems is present. If ureteral injury is suspected, a retrograde pyelogram should be performed. Proper diversionary measures must be performed when a perforation is confirmed. Appropriate long-term radiographic evaluation should follow.

Endoscopes↗
PubMed1987

Acute mechanical dilation of the ureter: an experimental study.

Forty-three kidney donor ureters were mechanically dilated in vitro with Van Buren sounds to an average of 21.2F. Thirty-three of these ureters, with an average pre-dilation diameter of 11.3F, could be dilated an additional average of 10.6F. The average dilated/nondilated diameter ratio in these ureters was 1.9. These experimental data suggest an undilated pelvic ureteral diameter and a manually dilated ureteral diameter of approximately the same size cited in the clinical literature.

Adult↗
PubMed1987

The ureteral access system: a review of the immediate results in 43 cases.

The ureteral access set was used 43 times during an 18-month period between 1984 and 1985. Stones lodged throughout the ureter and in the renal pelvis were extracted with a success rate of 51 per cent. Of the upper tract strictures 92 per cent were dilated successfully. Filling defects were diagnosed in 88 per cent of the cases. Foreign bodies were retrieved, Double-J stents were placed and biopsies were successful in each case. Ureteral perforation in 28 per cent of the cases was caused by the dilator in 8 of 12 (19 per cent over-all). The technique and short-term results are discussed. Long-term followup data are not yet available.

Catheterization↗
PubMed1987

Sonographic evaluation of the kidney following extracorporeal shock wave lithotripsy.

We investigated the value of real-time sonography for determination of pelvicaliceal dilatation 24-48 h after extracorporeal shock wave lithotripsy (ESWL) in 369 patients (419 treated kidneys). A varying degree of hydronephrosis was present in 121/419 (29%) kidneys. Fragmented stones post-ESWL were demonstrable in 346/419 kidneys (82%), but were missed by ultrasound in three kidneys (less than 1%). In four kidneys (1%), stone fragments which were shown to be present by ultrasound were not detectable on radiographs. In 25/419 kidneys (6%), evidence of renal trauma caused by ESWL was demonstrated by ultrasound. The most important incidental finding was a small renal cell carcinoma of the contralateral (untreated) kidney.

Diagnosis, Differential↗
PubMed1986

Renal stone disease treated with extracorporeal shock wave lithotripsy: short-term observations in 100 patients.

The immediate posttreatment findings are described for 100 patients who underwent extracorporeal shock wave lithotripsy (ESWL) for renal stone disease. Excretory urography was performed both before and 24-72 hours after ESWL. In 21 patients, stones were completely disintegrated, and stone fragments were passed rapidly. Stones were fragmented but not passed entirely within 24-72 hours in 76 patients. There was no appreciable effect on stones in three patients. In nine of 27 patients who had mild to severe ureteral obstruction caused by stone fragments, relief procedures (retrograde ureteral manipulation or percutaneous stone extraction) were necessary. Overall, 70 patients experienced successful stone disintegration without complications. Continued investigation is needed to determine prevalence of residual calculi, reversibility of acute effects of ESWL on the kidney, and possible development of late hypertension.

Female↗
PubMed1978

Referral preferences among the mental health professions.

A questionnaire presenting two clinical cases with questions about a diagnosis, type of treatment, and whether the respondent would treat or refer the person was administered to pastoral counselors, psychologists, social workers, and psychiatrists. Psychiatrists tend to see the most and social workers the least pathology in the cases. Psychiatrists see the least need for a psychometric evaluation, but no difference was found concerning need for a neurological examination. The majority prefer to treat the "neurotic" case, whereas there was an almost equal tendency to refer the "phychotic" case. Social workers most prefer to treat and pastoral counselors to refer the "psychotic" case. Overall, social workers refer the most, pastoral counselors the least. Credibility as referral source is ranked as follows: psychiatry, psychology, social work, counselors (both pastoral and marriage, family and child), with laymen ranking lowest. Rankings of credibility and effectiveness as referral sources are highly correlated. Furthermore, the more effective and credible a professional group, the supply of such persons is seen as ample.

Counseling↗
PubMed1977

Development and standardization of instruments measuring four aspects of sex-roles in primary grade children.

Two instruments were developed and standardized on first-, second-, and third-grade boys and girls. The Toy Preference Test (TPT) measures sex-role preference, and/or Stereotypic Sex-Role Concepts of masculinity (SRCm) and femininity (SRCf), depending upon the instructions used for administration. The Rating Scale for Children (RSC) taps sex-role adoption. Subjects were at least third generation U.S. citizens from intact middle-class, Caucasian families. Mean scores for boys and girls were compared and retest reliability coefficients calculated by grade level. The RSC was highly reliable and differentiated sex-role adoption at all grade levels. Similarly, the TPT differentiated the sexes regarding sex-role preference at all grade levels but was reliable for only one sex at each grade level. Boys and girls did not significantly differ in stereotypic sex-role concepts on either the SRCm or SRCf. Reliability coefficients were significant except for the third-grade girls on SRCm, and second-grade boys on SRCf. Patterns of intertest correlations were computed and discussed.

Age Factors↗