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D T Nielsen

Publications and source records attributed to D T Nielsen.

8 recordsLinked to original sources
PubMed1991

Fibre-optic bronchoscopic evaluation of tracheal tube position.

Verification of tracheal tube position by fibre-optic bronchoscopy was evaluated in 20 critically ill adult patients. The distance between the carina and the tube was measured by direct visualization with a fibre-optic bronchoscope and compared with the corresponding measurement obtained from a concomitant chest radiograph. The measured values did not differ significantly and in 18 out of 20 patients the accuracy was within 2 cm. No adverse effects were observed. We conclude that verification of tracheal tube position by fibre-optic bronchoscopy is a safe alternative to chest X-ray.

Bronchoscopy↗
PubMed1987

A comparative study of hysterosalpingography and endoscopy/laparotomy in infertile patients.

A comparison of hysterosalpingography (HSG), using Lipiodol ultrafluid as contrast medium, with endoscopy/laparotomy in the evaluation of the tubal function in 124 infertile women is presented. There was agreement between the results of both methods in 73.4% of the patients. The false-negative rate was 2.4% and the false-positive rate was 8.9%. Complications in the form of intravasation were seen in three patients but none of them had any symptoms. The conception rate was 35% in the subgroup of patients with normal HSG. The authors recommend the continuous use of HSG in the overall evaluation of infertile patients. It is recommended to use oil-soluble contrast media because of its high diagnostic accuracy, low frequency of complications and its therapeutic advantages.

Adult↗