PubMed Health⌕ Search

Biomedical subjects

C von Buchwald

Publications and source records attributed to C von Buchwald.

9 recordsLinked to original sources
PubMed2001

[Endoscopic closure of cranionasal cerebrospinal fluid fistulas with the use of neuronavigation--"Computer Aided Surgery"].

INTRODUCTION: Conventionally, cranionasal cerebrospinal fluid (CSF) fistulas have been closed by repair of the dural defect via an open craniotomy. These techniques may be cumbersome, not without complications, and far from successful. In recent years, endoscopic techniques have been developed in the field of nasal surgery and neurosurgery. Furthermore, by means of computer-aided surgery or neuronavigation, it is possible to identify the surgical track with a high degree of accuracy and, by the same token, identify the defect in the cranium. METHOD: By combining the endoscopic technique with computer-aided surgery, we have operated on six patients with cranionasal CSF fistulas endonasally. The fistula was confirmed before surgery by subaracnoidal injection of fluorescein. RESULTS: The surgery was successful and without any complications in all six cases. DISCUSSION: The method is recommended as the operation of first choice for cranionasal CFS fistulas, as compared to transcranial surgery. It is probably more efficient and with fewer complications than conventional surgery. A collaboration between neurosurgeons and ENT surgeons, like ours, can be recommended.

Adult↗
PubMed2001

Human papillomavirus in conjunctival papilloma.

AIM: To examine conjunctival papillomas for the presence of human papillomavirus (HPV) and koilocytosis. METHODS: Archival paraffin embedded tissue from 55 conjunctival papillomas was analysed for the presence of HPV by polymerase chain reaction and subsequent filter hybridisation. Histological sections of the 55 papillomas were evaluated for the presence of koilocytosis. RESULTS: HPV was present in 48 of 52 (92%) beta globin positive papillomas. HPV type 6/11 were found in 40 of 47 investigated papillomas and a double infection with HPV 6/11 and 16 was identified in a single papilloma. In six papillomas the HPV type could not be identified. Koilocytosis was present in 22 of 55 papillomas (40%). CONCLUSION: There is a strong association between HPV and conjunctival papillomas. HPV type 6/11 is the most common HPV type in conjunctival papilloma. The sensitivity of koilocytosis as an indicator of HPV in conjunctival papilloma is low.

Adult↗
PubMed2001

Sinusitis and ischemic stroke.

Acute sinusitis is a prevalent and generally uncomplicated infection that is normally resolved by medical therapy. However, severe neurological complications are known, and comprise of cerebral abscess, cavernous sinus thrombosis, meningitis, and epidural or subdural empyema. We report a case about a 10-year-old girl with a severe acute pansinusitis and ischemic stroke in the right lentiform nucleus and the anterior part of the right internal capsule. Possible explanations for this rare combination are discussed.

Acute Disease↗
PubMed1994

[Iatrogenic rhinolithiasis?].

A case of rhinolithiasis in a young man is presented. The radiological (CT-scan) and clinical findings of a rhinolith may be similar to other benign or malignant nasal lesion such as inverted papilloma. This similarity and the possibility that a rhinolith may have iatrogen origin is presented in this article.

Adult↗
PubMed1994

[Keloid of the external ear].

Keloid formation is an unpredictable complication to normal scar tissue development. The etiology is unknown, although an individual predisposition may be present. There is a regional propensity for the head, neck and upper torso. The treatment is difficult, and this should be taken into consideration when cosmetic procedures are being contemplated. This type of surgery should be avoided in individuals with previous keloid formation. Four cases of keloid formation, two after ear lobe piercing and two after otoplasty are presented and a satisfying outcome of surgical revision with ensuing steroid medication is reported.

Adolescent↗
PubMed1993

[Late diagnosis of retropharyngeal abscess in an infant].

In patients with respiratory distress and difficulty in swallowing life-threatening conditions should be born in mind. We report a case in which the diagnosis of retropharyngeal abscess was established with considerable delay in an eight-month girl. The etiology and clinical picture is discussed. We conclude that patients with stridor and drooling should be admitted to hospital at once and should be examined with equipment for tracheotomy/intubation ready. If the epiglottis is found to be normal the possibility of a retropharyngeal abscess should be considered.

Abscess↗
PubMed1991

High-frequency amplification with ITC-HA and BTE-HA. A comparative investigation.

The purpose of the present investigation was to evaluate the magnitude of selective high-frequency amplification obtained by an in-the-canal hearing aid (ITC-HA), and to compare it with that obtained with a conventional behind-the-ear hearing aid (BTE-HA) with an open mould. 22 subjects (20 males, 2 females) at a median age of 66 years (range 46-84) were included in the investigation. All suffered from a bilateral high-frequency hearing loss with normal or near-normal hearing thresholds at 0.5 and 1 kHz. Insertion gain measurements demonstrated that the ITC-HA gives a significantly higher amplification in the high-frequency area, when compared with the BTE-HA, though neither of the hearing aids amplified as much as indicated by the POGO strategy. Although a better amplification in the high-frequency area was obtained with the ITC-HA, it did not result in significantly better speech recognition when compared with the BTE-HA. At the hearing aid fitting, all subjects preferred the ITC-HA, and after an observation period of one year, 68% of those fitted used the aid continuously. Based on the investigation it is concluded that hearing-impaired persons can be fitted with an ITC-HA, even if they have pronounced high-frequency hearing loss, and that this type of aid is preferred by the hearing-impaired to the conventional BTE-HA.

Aged↗