Biomedical subjects

P O Christensen

Publications and source records attributed to P O Christensen.

5 recordsLinked to original sources

PubMed1993

[Surgical treatment of hydronephrosis. Late results after surgery using the Anderson-Hynes method].

Twenty-one patients with hydronephrosis mean age 37 years (11-72) were operated using Anderson-Hynes pyeloplasty, without routine use of a nephrostomy catheter. One patient developed urinary leakage postoperatively, which ceased after insertion of a ureteric catheter. Follow-up assessment was performed after a mean observation time of 85 months (44-142). Clinical examination, laboratory investigations, urography and renography were performed preoperatively and at follow-up. No signs of stones or stenosis in the pelvis were found. The patients operated upon before the age of 30 showed improved postoperative renal function. All patients had symptoms preoperatively, but only one had symptoms postoperatively. It can be concluded that the results of surgical intervention in hydronephrosis are excellent, especially in patients below 30 years.

Adolescent↗

PubMed1992

Long-term follow-up of patients with hydronephrosis treated by Anderson-Hynes pyeloplasty.

A series of 21 patients with hydronephrosis (mean age 37 years) underwent an Anderson-Hynes pyeloplasty; a nephrostomy catheter was not used routinely. One patient developed urinary leakage post-operatively but this ceased following insertion of a ureteric catheter. Assessment was carried out after a mean observation time of 85 months. Clinical examination, laboratory investigations, urography and renography were performed pre-operatively and at follow-up. There was no evidence of stones or stenosis in the pelvis. Patients operated upon before the age of 30 years showed improved renal function. All patients had symptoms pre-operatively but only one had symptoms post-operatively. It was concluded that the results of surgical intervention in hydronephrosis are excellent, especially in patients aged less than 30 years.

Adolescent↗

PubMed1987

Actinomycotic osteomyelitis in a child.

Contrary to what used to be the case, actinomycosis is now a rare disease and only infrequently mentioned in otolaryngological textbooks (Ballantyne, J. and Groves, J. 1979). The disease is a chronic suppurative infection caused by micro-organisms from the actinomyces group, most often israelii. Actinomyces species are all oral commensals. They are gram-positive, non acid-fast, anaerobic or microaerophilic filamentous bacteria (Walker et al., 1981; Bennhoff, 1984). Associated flora of both aerobic and anaerobic bacteria are always present, most frequently anaerobic streptococci, fusiform or gram-negative bacilli, and hemophilus species. The associated flora form a kind of symbiosis with the actinomyces species and may cause an anaerobic environment which furthers the growth of these species (Bennhoff, 1984). Topographically, a distinction is made between 3 favorite localizations: 1. Cervico-facial (55 per cent); 2. Abdomino-pelvic (20 per cent); and 3. Pulmo-thoracic (15 per cent).

Actinomyces↗

PubMed1987

Periferal cystic hyperplasia of the prostate gland.

Cystic transformation of the periferal prostate affecting at least 10 cm3 of tissue was found in 19 out of 300 consecutive prostatic glands at autopsy. The etiology is probably multifactorial and no correlation is found with nodular hyperplasia or carcinoma. Periferal cystic hyperplasia may be a cause of palpatoric enlargement of the prostate and thus may be a differential diagnostic possibility to nodular hyperplasia or cancer.

Aged↗

PubMed1987

Prostatic calculi.

The presence of calculi in 300 whole prostates from consecutive autopsies were investigated by the Faxitron imaging technique. Calculi were found in 99% of the prostates, their number and size increasing with age. They were mainly localized in the ducts in the borderzone between the middle lobes and the periferal prostate posterolaterally, but often some were also found anteriorly in the centreline. Calculi were never seen in the middle lobes. We found no statistically significant relation between the number, size or localization of calculi and other morphological or pathological parameters. Prostatic calculi seem to be a part of the normal process of aging, and do in only exceedingly rare cases assume any clinical importance.

Adolescent↗