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Biomedical subjects

H Ostensen

Publications and source records attributed to H Ostensen.

At least 19 recordsLinked to original sources
PubMed1995

[Can we rely on Norwegian surgery data? A quality control at central and local hospitals of the procedure codes used in the survey on organization of gastrointestinal cancer surgery].

The nation-wide register of hospital discharges in Norway includes ICD-9 and national procedure codes. Hospitals were asked to check five surgical procedures listed in the register against the primary data sources. 649 discharges were controlled. The response rate was 68%. The results indicate that the quality of the data in the register varies for the different procedures. For procedures with high volume (resection of rectum), the error in the register is 3%. This is the same as reported from other Nordic countries. The proportion of errors in the register was high in hospitals with only one registered procedure code. The quality of data can to some extent be checked on the basis of DRG coding (DRG group 468/477). Quality control of register data is required when the number in DRG 468/477 is high in the nation-wide register or when the number of specific procedures in hospitals is low.

Databases, Factual↗
PubMed1992

[Diagnostic imaging of the gastrointestinal and biliary tracts. Pattern of examinations during the period 1975-90].

The procedures used for imaging of the gastrointestinal tract, the gall bladder and the bile ducts were registered in six Norwegian hospitals during the period 1975-90. Data obtained from all hospitals showed a significant decrease in radiological examinations of the stomach and the large bowel, and a dramatic decrease of such examinations in the case of the gall bladder and bile ducts. The changes are mainly due to the increasing use of newer methods such as ultrasonography, gastroscopy and colonoscopy. The shift in the pattern of examinations, as shown in the present study, may well have many implications for patients and for the health service as a whole.

Biliary Tract Diseases↗
PubMed1992

Radiological examinations of the urinary tract. Changes during the last 24 years.

Procedures for imaging the urinary tract have been recorded in six Norwegian hospitals for the last 24 years. For three of the hospitals, data were collected from 1965 to 1989, and for the other three from 1966, 1971 and 1975, respectively. There was a significant reduction in the number of intravenous pyelograms, voiding cystograms, and renal angiograms, but the number of retrograde pyelograms and plain radiographs of the urinary tract remained constant. Computed tomography of the urinary tract increased during the first years, but after the introduction of ultrasonography, the number of computed tomograms decreased. Ultrasonographic examinations of the urinary tract are still rapidly increasing, and seem to have replaced some of the other imaging techniques. The present results should be taken into consideration when planning the health care for the future.

Angiography↗
PubMed1990

Radiographic measurements of occipito-atlanto-axial dislocation in rheumatoid arthritis.

Atlanto-axial dislocation is frequently found in patients with rheumatoid arthritis. Vertical atlanto-axial dislocation with invagination of the dens into the foramen magnum may result in most serious myelopathy. Decompression, removal of the dens and atlanto-axial fixation have given fair results in such cases. It is our aim, however, to prevent myelopathy in our rheumatoid patients. The prerequisite for that is routine, radiographic examination of the cervical spine and prophylactic atlanto-axial fixation. For these routine controls we need a radiographic measuring method which can be used even in cases of greater destruction. Our radiographic measuring method is compared with other methods and seems to be more appropriate and also gives information about the forward or backward tilting of the atlas. In a group of non-rheumatoid patients we have measured normal figures for this method.

Adult↗
PubMed1989

[Occupational pneumoconiosis and x-ray check-ups performed by the National Board of Occupational Protection].

In Norway the Directorate of Labour Inspection's pneumoconiosis panel consists of two radiologists. Pneumoconioses are notifiable diseases, and doctors are required by law to notify suspected and confirmed cases to the Directorate of Labour Inspection. Chest films are sent to the Directorate. The pneumoconiosis panel reads and classifies the cases according to ILO-standards. During a 9 months' period, 177 chest films were examined, 162 of which were from persons exposed mainly to asbestos. In this group of 162, 96 persons had parietal pleural plaques only, and 21 or 17% had pleuropulmonary asbestosis with visceral pleural thickening from which fibrous streaks radiated into the lung. Ten persons had pulmonary asbestosis alone or combined with pleural plaques. This group included one mesothelioma. The notification form used by the doctors demands adequate information on occupational history and exposures. More specific information would facilitate the work of the panel.

Adult↗
PubMed1988

Splenic arteriovenous fistula. Case report.

A case of splenic arteriovenous fistula is reported. Two types of this anomaly are known--the more common, true, arteriovenous fistula, and a fistula between the arterial system and the portal venous system. In the present case the second, very rare, type developed after a motorcar accident.

Accidents, Traffic↗
PubMed1987

Intravenous urography in children and youth.

This report derives from Tromsoe in northern Norway. In a retrospective study of the indications for intravenous urography (IU) and the findings at IU in 740 patients (451 girls and 289 boys) aged 0-19 years, we found that urinary tract infections accounted for 69.4% of the IU in females 30.1% of the IU in males, most often seen in the youngest patients. The pathological findings most frequently seen were anomalies (17 females and 10 males) and urinary tract obstruction (3 females and 15 males). The present study indicates the following: first, that the yield of IU in the primary investigation of children and youth suffering from enuresis and non-specific abdominal disturbancies is small; and second, that the use of IU in children and youth with urinary tract infection and haematuria should be questioned and reconsidered.

Adolescent↗
PubMed1987

Accessory ossicles in the elbow.

Accessory ossicles in the elbow are often diagnosed as osteochondritis dissecans or chondromatosis, but no terminologic agreements seem to exist in the literature. Our study of 5 patients suggests that accessory ossicles in the fossa olecrani or coronoidea may represent anatomic variants, perhaps best described as os supratrochleare anterius and posterius, respectively.

Adolescent↗
PubMed1986

Cancer detection in biopsy specimens taken from different types of gastric lesions.

From January 1974 to October 1983, 5072 gastroscopies were performed in 3351 patients with a total of 14,554 biopsy specimens taken from 2565 lesions in the stomach. The endoscopic diagnoses and their histologic counterparts were recorded and the diagnostic yield of specimens from each type of lesion analyzed. Gastric adenocarcinoma was finally diagnosed in 139 patients. The diagnosis was delayed, from 1 to 4 months, in five patients because of false-negative diagnoses. These patients all had ulcerating cancers. Moreover, early gastric cancer was mainly of the ulcerating type. Accordingly, an ulcer lesion is the most important one to biopsy. Only four cancers were found in 959 benign-appearing gastritic lesions. Twenty-one patients with negative biopsy results at the first endoscopy were later shown to have cancer. When these biopsy specimens were re-examined, malignant lymphoma was found in one and adenocarcinoma in three cases. In spite of false-negative endoscopic findings, nonrepresentative biopsy material and false-negative histologic reports, the combination of biopsy results and clinical judgement led to correct and timely treatment in nearly all patients.

Adenocarcinoma↗
PubMed1986

Intravenous urography and voiding cystoureterography in northern Norway: a retrospective study.

Intravenous urography (IU) was performed in 489 patients aged 0-9 years during 1980-1983. A total of 35 (7.2%), 19 (13.1%) boys and 16 (4.7%) girls had pathological changes at IU. Of these, 11 boys and 5 girls had findings with therapeutic consequences. We have analysed the results of IU and voiding cystoureterography (VC) in 62 patients and show that a normal IU does not exclude vesicoureteral reflux into the renal pelvis. By performing only VC hydronephrosis, pyelonephritic scarring and anomalies may be missed.

Child↗