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Biomedical subjects

O Jacobsen

Publications and source records attributed to O Jacobsen.

At least 37 records · Page 2Linked to original sources

Pancreatic cancer in the Faroe Islands. An epidemiologic study of patients with pancreatic cancer in the Faroe Islands 1972-82.

An epidemiologic study of pancreatic cancer was performed in the Faroe Islands, which have 44,000 inhabitants. All the patients with this diagnosis in the period 1972-82 were reviewed. The material comprised 57 patients. The diagnosis was confirmed microscopically in 67%, by explorative laparatomy in 28%, and by endoscopic retrograde cholangiopancreatography in 5% of the patients. The average annual age-standardized incidence per 100,000 inhabitants (world standard) was 10.7 among men and 7.9 among women. The incidence of pancreatic cancer on the Faroe Islands is at the same high level as in the other Scandinavian countries, suggesting that industrial pollution has no pathogenic role. Nor could diseases or environmental, occupational, or familial factors be identified in the development of pancreatic cancer. High intake of lipids, available carbohydrates, and alcohol can be a contributory cause of developing pancreatic cancer.

Adult↗

Non-tropical sprue. Malignant diseases and mortality rate.

The complications of non-tropical sprue were registered in 100 patients seen during an 18-year period. The patients had a significantly higher mortality than the age- and sex-matched general population. They had an increased incidence of malignancies, predominantly malignant lymphomas and carcinomas of the gastrointestinal tract. The disease must be considered a premalignant condition.

Adolescent↗

5-Aminosalicylic acid enemas in patients with active ulcerative colitis. Influence of acidity on the kinetic pattern.

Enemas containing 1000 mg 5-ASA were administered to patients with active distal colitis in three separate studies: as a single dose in a neutral solution (pH 7.4); as a single dose in a slightly acidic, buffered suspension (pH 4.8); and as multiple doses once a day for 10 days with the acidic enema. 5-ASA was relatively rapidly absorbed from the neutral solution, resulting in plasma concentrations of 5-ASA sometimes two to three times higher than those found after peroral salazosulphapyridine (SASP) treatment. In contrast, absorption from the acidic enema was reduced and/or prolonged, giving plasma concentrations similar to those found during oral SASP treatment. After repeated doses of the acidic enema, plasma concentrations after an enema resembled those seen after the single dose. Urinary excretion was significantly lower, suggesting a reduced fraction of absorption at steady-state conditions. No side effects were observed, and no local irritation was reported. An acidic buffer suspension with 5-ASA seems to be safe for use as enema and deserves further clinical testing for treatment of distal ulcerative colitis.

Adolescent↗

Pregnancy in Crohn's disease.

Over a 13-year period, the course of 109 pregnancies in 68 women with Crohn's disease was studied. A total of 76 children were delivered. There were no gemellary deliveries, and none of the children had congenital malformations. Pregnancy entailed no increased risk of an exacerbation of the bowel disease. As compared with the reference population and with women with ulcerative colitis, the total material showed an increased risk of premature delivery and spontaneous abortion, but a further analysis showed that this was due only to an increased risk in women with active disease at the time of conception and in women who had undergone bowel resection during pregnancy. Birth weight and birth length corresponded to those in the reference population. The frequency of neonatal hyperbilirubinaemia was not higher in children of mothers with Crohn's disease than in children of healthy mothers. Treatment with sulphasalazine, salazosulphadimidine, and corticosteroids did not influence the course of pregnancy or the frequency of neonatal jaundice or malformations. Consequently, in Crohn's disease a pregnant woman should be given the same medical treatment as when not pregnant. Generally, the women should be advised preferably to conceive at a time when their bowel disease is inactive. The risk groups should be followed up with frequent obstetrical examinations throughout pregnancy.

Abortion, Spontaneous↗

Functional bladder neck obstruction. Voiding cysto-urethrography and pressure-flow measurements.

The results of voiding cysto-urethrography with simultaneous pressure-flow measurements in 24 patients with functional bladder neck obstruction are reported and compared with the findings in 10 healthy younger males. The bladder neck diameter was statistically significantly smaller in the patients (p less than 0.01). Absence of or slight funnelling of the bladder neck during voiding occurred in 79 per cent of the patients. The pressure-flow recording documented infravesical obstruction in the patients. Voiding cystourethrography appears to be mandatory in the diagnosis of functional bladder neck obstruction.

Adult↗

Results of pulmonary resection in cases of unilateral bronchiectasis.

Follow-up studies of 22 patients treated surgically for unilateral bronchiectasis showed that all patients were improved postoperatively following an average observation time of 9 years, 50% being completely free of respiratory symptoms. In all patients the number of days of recurrent illness had declined significantly after surgery. As mortality and morbidity rates in this kind of surgery are not negligible, a most careful pre-operative selection of patients suffering from bronchiectasis is indicated.

Adolescent↗

The Hamilton depression scale. Evaluation of objectivity using logistic models.

The consistency of the Hamilton Depression Scale (HDS) as a measure of the severity of depressive states has been examined when the scale was used weekly during a trial when imipramine. By use of logistic models (Rasch) the consistency of the HDS has been considered across patient-variables as age, sex, plasma levels of imipramine, and diagnosis. The results showed that the original 17-item HDS was without adequate consistency, i.e. the total score of the sample of items was no one-dimensional measure of depressive states. However, a melancholia subscale of the HDS contained items the total of which can be used to compare patients quantitatively, although in some part of the analysis one of these items showed ceiling effect. It was concluded that the melancholia subscale (containing the items depressed mood, guilt, work and interests, retardation, psychic anxiety, and general somatic symptoms) can form the basis for further improvements in the field of quantitative rating scales for depressive states.

Adult↗

Functional bladder neck obstruction. Late results after endoscopic bladder neck incision.

The effect of endoscopic bladder neck incision for functional bladder neck obstruction was assessed in 28 consecutive patients with a follow-up period of up to 50 months. The operation had excellent effect on the patients' symptoms consisting mainly of weak stream and/or recurrent urinary infections. Uroflowmetry at the postoperative follow-up study showed a statistically significant increase in as well maximum flow rate as mean flow rate. The bladder neck incision carried very few complications, and the average postoperative stay in hospital was 2.8 days. It is important to be aware of the condition functional bladder neck obstruction, and the diagnosis should be based upon uroflowmetry and voiding cystourethrography. In borderline cases with only slightly reduced urinary flow rate, additional pressure-flow studies should be applied to demonstrate infravesical obstruction.

Adult↗

Bladder function in healthy elderly males.

Bladder function was studied in 20 healthy elderly male volunteers using cystometry, uroflowmetry and voiding cystourethrography. Two persons were excluded from the study as neurological examination had shown evidence of organic neurological disease, and one person did not complete the study. 53% of the remaining 17 persons had detrusor hyperreflexia. Urinary flow rates were reduced and maximal intravesical pressures elevated in the persons studied, although they claimed to have a normal voiding pattern. No correlation was found between the reduction of urinary flow rate respectively increase in maximal intravesical pressure and the presence of detrusor hyperreflexia. The high incidence of detrusor reflex disturbances thus suggests that incipient infravesical obstruction in old age and possible subclinical impairment of the central nervous control of the micturition reflex are major etiological factors in detrusor hyperreflexia.

Age Factors↗

The diagnostic value of intravenous pyelography in infravesical obstruction in males.

Intravenous pyelographies from 104 consecutive patients admitted for infravesical obstruction were studied with special reference to pathology of the upper urinary tract and the bladder, the size of the prostate and the bladder emptying. The incidental findings in the upper urinary tract did not influence the treatment of the infravesical obstruction. Furthermore the radiographic assessment of prostatic size, bladder trabeculation, bladder emptying, bladder stones and prostatic cancer was very uncertain. Thus intravenous pyelography in our opinion should not be performed as a routine procedure in patients with benign prostatic hypertrophy, but only on clinical suspicion of upper urinary tract pathology.

Adult↗

Dysfunction of the bladder neck: a urodynamic study.

Urodynamic investigations were performed in 9 males, suffering from dysfunction of the bladder neck (detrusor bladder neck dyssynergia). The parameters of micturition were compared with the values in normal males and in patients with prostatic obstruction. By introducing a new factor, the maximum opening time, we found a characteristic pattern in dysfunction of the bladder neck, making selection of patients for endoscopic incision of the bladder neck possible. The maximum and mean flow rates increased significantly in 5 patients treated with incision of the bladder neck. The diagnostic value of voiding cystourethrography and urodynamic investigation is discussed.

Adult↗