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Biomedical subjects

R G Gold

Publications and source records attributed to R G Gold.

At least 37 records · Page 2Linked to original sources

Embryonic implantation in carcinoma of the endometrium.

We recently encountered a patient in whom placental implantation occurred directly in carcinoma of the endometrium. At the time of surgery for a presumed tubal pregnancy, the 33-year-old patient was discovered to have bilateral ovarian tumors that were histologically identical to the endometrial neoplasm.

Adenocarcinoma↗

Assessment of a program's effectiveness in selecting individuals "at risk" for problems in parenting.

Administered the Child Abuse Potential (CAP) Inventory to 99 parents assessed as "At Risk" of parenting problems by the At Risk Parent-Child Program, Inc., Tulsa, Oklahoma. The study was designed to determine the number and extent of elevated abuse scores in an "At Risk" group compared to a norm group and to discover whether present "At Risk" parents were more seriously "At Risk" than past clients in the same program. During a 3-year period participants were offered the CAP-Inventory as part of the routine evaluation process. Results indicated the "At Risk" group scored significantly above a norm group, with 58% and 52% of the "At Risk" parents scoring above the 95th and 99th percentiles of the norm group, respectively. Comparison of the present results with data from a previous study in the same program (Milner & Ayoub, 1980) showed that the present "At Risk" group earned a significantly higher mean abuse score and had significantly more individual scores above the 95th and 99th percentiles of the norm group than did previous "At Risk" parents. The data indicated the Program is currently more effective in the selection of parents in need of its services. However, because the clients are in greater need, other findings (Thomasson, Berkovitz, Minor, Cassle, McCord, & Milner, 1981) suggest that the Program may now find itself having a more difficult time demonstrating program effectiveness because participants may be more resistant to treatment.

Adult↗

Pacemaker assessment in the ambulant patient.

A new technique for assessing implanted cardiac pacemaker function in the ambulant patient has been introduced and assessed. A modified portable electrocardiograph recorder is used to store 24 hours of electrocardiograms along with marker pulses indicating the timing of pacemaker impulses. The recorder detects this narrow impulse and records a wider marker pulse on a second channel. The false positive detection rate was estimated from recordings, each of 24 hours, taken from 10 patients. All of these patients were ambulant and none had a cardiac pacemaker. There was on average less than one false positive per 24 hours. When similar recordings were taken from a group of 15 patients with pacemakers, the average false positive rate in 13 of these patients was also less than on per 24 hours. In the two other recordings artefacts resulted in false positive rates of 28 and 960 per 24 hours. Failure to detect pacemaker pulses was confirmed in only one patient. In addition to determining the accuracy of pacemaker pulse detection, the clinical usefulness of this technique was assessed. Two patients had fixed-rate pacemakers and 13 had demand pacemakers. Of the latter, two patients had a total of three episodes of failure to sense, one patient frequently failed to capture, and six patients had episodes of inappropriate inhibition of the pacemaker, the number of episodes ranging from one to 21 in 24 hours. Paced complexes were easily identified even when they occurred as fusion complexes. The frequency of paced complexes was quantified in each patient and varied from 21 to over 100 000 impulses in the 24 hour period.

Electrocardiography↗

Mechanical failure causing current leakage with unipolar pacemakers: significance and detection.

Pacemaker malfunction caused by mechanical failure at the site of electrode generator connection has been observed in 5 patients fitted with unipolar pacemakers. Intermittent failure to capture occurred in one patient. The fault was the same in each case and resulted from fracture of a plastic screw designed to hold an insulating cap in place over the electrode generator connection. Changes in impulse amplitude, relative pacing threshold, and distortion of the shape of the pacemaker impulse (overshoot of the leading and trailing limbs and prolongation of the plateau length) occurred in each case, and are helpful in making the diagnosis. In contrast no significant change occurred in the frontal plane axis of the pacemaker impulse. It is concluded that current leaks in unipolar pacemakers can be of sufficient magnitude to cause failure to capture. Early detection is important and is best achieved by examination of the pacemaker signal for amplitude and shape, and assessment of pacing threshold where possible.

Aged↗