Biomedical subjects
Publications and source records attributed to G H Peterson.
A case is reported of a patient with rapidly accumulating urinary ascites who was successfully treated by embolic ablation of renal function. The appropriate literature is reviewed.
In two patients with retroperitoneal fibrosis computerized tomography was used for diagnosis and/or postoperative follow-up. Methyldopa (Aldomet) is postulated as the causative agent in one case; the second is idiopathic.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
This study identifies and describes a consistent proximal branching of the neurovascular supply to the latissimus dorsi muscle. This anatomical feature makes possible splitting the muscle and overlying cutaneous territory into independent branched musculocutaneous units. A parallel study of neurovascular anatomy in dogs suggests that this animal is an appropriate model for testing and developing clinical applications of the split latissimus dorsi flap.
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Small bowel tumors are difficult to diagnose and are frequently not identified at initial evaluation. We retrospectively reviewed 25 consecutive cases to assess the efficacy of procedures currently used in diagnosis. Barium contrast studies were diagnostic in 14 (56%) of the cases. Enteroclysis provided one diagnosis after the initial barium study was negative. Of the 11 patients for whom barium studies were negative, angiography provided the diagnosis in six (three benign, three malignant). Endoscopy was never helpful. Laparotomy was required in five cases (three benign, two malignant) after repeated negative work-ups. An evaluation protocol which calls for each method as needed seems to provide the most reliable means of diagnosing small bowel tumors.
The purpose of this study was to assess the practice of a group of non-nurse midwives by comparing the outcomes of their deliveries to the standard of hospital-based physicians. This was done by means of a matching procedure designed to equate the populations on major medical risk factors. The first phase of the study used all physicians and found major differences favoring the midwives. The second phase of the study used the least interventionist half of the physician group and found minimal differences between midwives at home and physicians in the hospital. It is suggested that excessive intervention is not without risk regardless of who does it.
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In a crossover study of more than 300 double contrast colon examinations, including 2,200 radiographs, many common and some uncommon views were taken and compared. An optimal series of "routine" films and the order in which they should be taken are presented. This will produce a complete colon examination in the most efficient way. Some technical considerations are presented which proved necessary to produce a superb examination. This new routine represents a reduction in the number of films advocated by Welin and Miller in earlier publications. The findings are compatible with both air contrast and full column techniques.
In double contrast enemas, the rectum and distal sigmoid can easily be examined with a high degree of accuracy. This requires adequate drainage and good air distension of this segment of the colon. Methods are outlined by which this can easily be accomplished.
The authors conducted prenatal interviews and behavior observation sessions with 46 families in which the woman was pregnant. These families were again interviewed and observed 7 days, 1 month, 2 months, and 6 months after the child was born. The authors found that the most significant variable predicting the variance of maternal attachment was the length of separation of mother and infant: less separation was associated with greater attachment. The next most significant variable was birth experience, followed in importance by the length of labor and prenatal attitudes and expectations.
The sexual attitudes and beliefs of 20 children who have been present at the labor and delivery of sibs and have observed the birth process are compared with 20 children who have not been present at delivery. The ages of these children ranged from 2 years to 14 years. Several of these children were observed at the actual delivery where naturalistic observations of delivery were carried out. Naturalistic observations of these processes were also carried out as well as observations of play of children who had witnessed the delivery with children who had not. The attitudes of the parents of children present at delivery were characterized and consisted of a feeling that birth was a normal family event of a positive nature that should involve other children of the family. Their children tended to have very accurate notions regarding the proverbial "Where do babies come from?" question and tended to view the birth in a positive, happy manner. Children not present found the idea of birth puzzling or inconceivable and did not seem to understand the concept or be able to relate it to their family. They tended to develop theories about birth that were inaccurate and sometimes fantastic, much as those described earlier by Freud. The results seem to suggest that children's presence at delivery permits an open attitude toward birth as a normal process in families in which this ideology is held and for girls aids in the development of their self-image as women. Preliminary data suggests less sibling rivalry among the children present at the delivery. These results are discussed in regard to current American birth practices.
Medical records of 1,146 elective home births from five home delivery services in northern California were reviewed. Three of the services consisted of family physicians and nurses, whereas two consisted of lay midwives without immediate physician supervision. Rates of medical complications in both groups were low. Perinatal morbidity and mortality were lower than California averages. Fifteen premature infants (1.3%) were delivered successfully. Apgar scores were high. Four infants (0.3%) were neurologically abnormal at follow-up. The perinatal mortality rate was 9.5 per 1,000 total births. There were no maternal deaths. These figures demonstrate that in a self-selected, medically screened, low-risk population, home delivery with medical facility back-up can be a reasonable alternative to hospital delivery. Possible reasons for the good results obtained are cited.