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Biomedical subjects

W Steiner

Publications and source records attributed to W Steiner.

At least 127 records · Page 7Linked to original sources
PubMed1979

[Electromyography of the cricoarytenoid muscle in the unsedated patient using the zoom-endoscope (author's transl)].

The EMG enables diagnosis, follow-up and prognosis of vocal cord palsy as well as indications for surgery. Using the zoom-endoscope of von Stuckrad electromyography of the larynx can be performed under topical anaesthesia. With a specially designed instrument the needle electrode can be transorally applied exactly into the posterior cricoarytenoid muscle and into any other muscle of the larynx. As the patient can follow instructions the voluntary muscle activity can be observed on the monitor and stored on tape during inspiration, exspiration and phonation. Replay and electronic summation are possible.

Anesthesia, Local↗
PubMed1978

[Endoscopic needle biopsy in larynx and pharynx (author's transl)].

The needle-biopsy taken in the pharynx and larynx is a simple and reliable procedure for the histological diagnosis of submucosal tumours. It can be performed either in local anaesthesia using the zoom-endoscope by v. Stuckrad or during microlaryngoscopy under general anaesthesie. This method however does neither replace the single biopsy of exophtic tumours nor the microlaryngoscopic excision of suspicious, precancerous lesions.

Biopsy, Needle↗
PubMed1978

Endoscopy of the nose and nasopharynx.

Endoscopy of the nose and nasopharynx using rigid endoscopes and the zoom-laryngoscope-epipharyngoscope after v. Stuckrad enhances the diagnostics in these regions considerably. These "inaccessible" regions, remote structures and niches can easily be visualized by angle-endoscopes with magnification. Not only diagnostic procedures are facilitated but also some therapeutical manipulations. Especially for the early detection of cancer as for follow-up control and photo-documentation the endoscopes are of particular importance.

Endoscopes↗
PubMed1978

Endonasal sinus surgery with endoscopical control: from radical operation to rehabilitation of the mucosa.

The radical operations of the paranasal sinuses with total removal of the diseased mucosa very often produced postoperative disability due to scar formation and nerve irritation. A new concept of endonasal sinus surgery is based on the reestablishment of paranasal draining, reventilation, and preservation of the lining mucosa. This became possible by a strictly endonasal approach using angle-optic endoscopes for the optical control of manipulations. The principles of endonasal antrostomy, ethmoidectomy, and infundibulotomy are outlined, and their preliminary results are given. The importance of long-range postoperative local treatment is emphasized.

Chronic Disease↗
PubMed1978

[Endoscopic needle biopsy in larynx and pharynx. A simple method for the histological diagnosis of tumours (author's transl)].

The needle-biopsy taken in the pharynx and larynx is a simple and reliable procedure for the histological diagnosis of submucosal tumours. It can be performed either in local anaesthesia using the zoom-endoscope by v. Stuckrad or during microlaryngoscopy under general anesthesia. This method however does neither replace the single biopsy of exophytic tumours nor the microlaryngoscopic excision of suspicious, precancerous lesions.

Adult↗
PubMed1978

[Surgical rehabilitation of speech after total laryngectomy: the Staffieri techniques (author's transl)].

Surgical speech rehabilitation after total laryngectomy by the three procedures of Prof. Staffieri is based on the principle of establishing a short fistula lined by pharyngeal mucosa between trachea and hypopharynx. It permits voluntary air pressure control for voice production while preventing aspiration during deglutition. In a single-stage procedure the "neoglottis phonatoria" is established on the occasion of the laryngectomy at the top of the trachea. In cases of prevoius laryngectomy a shunt is established between the trachea dorsal wall and the oesophagus, either cranially (direct internal shunt) or more caudally (retrograde internal shunt). The three methods are described, and the one-way function of the different fistulas are demonstrated. The percentage of successful voice restorations that remain free from swallowing difficulties in 700 patients, subjected to these techniques in Europe and Overseas is between 60 and 90%. The main advantage of this operation, which is easy to perform and without risk for the patient, is the wide oncologic spectrum of indications.

Humans↗
PubMed1978

[The indications for revision radical maxillary sinus surgery (author's transl)].

Surgery of the maxillary sinus is one of the commonest in otorhinolaryngology. The classical Caldwell-Luc procedure however is not infrequently followed by infraorbital or some other facial neuralgia or discomfort. In 1976,246 patients were assessed for revision maxillary sinus surgery, and the symptomatology, clinical, transnasal endoscopic and radiological (polytomography) findings were documented. 59 revision operations were performed and a critical analysis of the preoperative, operative and postoperative findings are presented. Polytomography together with sinus endoscopy is a very valuable assessment of the need for revision surgery. Careful sublabial periosteal wound closure is emphasized, and as an alternative to the Caldwell-Luc procedure the intranasal antrostomy under endoscopic control is recommended.

Endoscopy↗
PubMed1977

[Endonasal antrostomy with endoscopical control for chronic maxillary sinusitis (author's transl)].

A transnasal approach to the maxillary sinus as a standard operation in chronic maxillary sinusitis is described. A mucosal flap in the lower nasal meatus is electrically circumcised, and a window of appropriate size is formed by osteotomy. The removal of pedicled polyps and cysts from the cavity is controlled by endoscopy, while most parts of the thickened mucosa remain in place and may recover and also line the uncovered areas. If necessary, an opening in the facial wall of 5 mm diameter is established for endoscopical control or manipulations. The preliminary results of 56 endonasal sinutomies are reported, which are satisfactory. The avoidance of postoperative dysesthesia or neuralgia is a marked advantage of the procedure.

Chronic Disease↗
PubMed1976

[Endoscopic-histological differential diagnosis of rare benign endolaryngeal proliferations (author's transl)].

In the period from 1961 to August, 1975, 2,222 microlaryngoscopic examinations were carried out at the ENT Department of the University. A correlation was seen between the increase in the number of examination in the last few years and the increase in the number of malignant tumours of the larynx, while malignant growths in the hypopharynx were found to be only slightly increased. An anlysis of 1,027 microlaryngoscopies carried out under anaesthesia over the last 2 2/3 years showed almost 50% cancers and precancers. In 5% of the case at most more rare laryngeal findings were also seen. Of these, the granular cell tumour, plasmocytoma, oncocytic cystadenoma and amyloid-tumour of the larynx, but also tuberculous laryngitis, are represented. The modern endoscopic examinations and the fundamental bioptic histomorphological examination of proliferations allow an exact differentiation of these changes in the tissues of the endolarynx. In this connection, a valuable technical aid is the v. Stuckard low-power magnifying laryngoscope, that has been in use for the past six months.

Adolescent↗
PubMed1976

[Early cancer detection in the oro-pharyngo-laryngeal area: analysis of a regional screening project (author's transl)].

During a six months lasting screening project 6866 persons were examined free of cost. Inspection of the mouth, endoscopy of the naso-hypopharynx and larynx with the Wolf-endoscope after v. Stuckrad, and palpation of the neck were included. Every sixth person required further diagnosis or treatment. Precanceroses were found in almost 3%, and up to now malignomas were found in 0.3% of the screened persons. Among these 14 cases of cancer were 9 carcinomas of the larynx. This comparatively high percentage of precanceroses and cancer favors the endoscopic screening of patients with organ-related symptoms and of high risk groups.

Adult↗