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Biomedical subjects

R Steinert

Publications and source records attributed to R Steinert.

9 recordsLinked to original sources
PubMed1989

[Orbital pseudotumor].

The orbital pseudotumour is an inflammatory infiltration, which ranges from a lymphoid, through a granulomatous to a sclerosing type, depending on its stage of maturity. Its simulataneous appearance with autoimmune-reaction-induced diseases might indicate an immune-allergic aetiology. After clinical diagnostic procedures including imaging techniques (of which magnetic resonance is particularly important) as much of the tissue as possible should be removed by orbitotomy. Therapy with cortisone and/or radiation is indispensable, but seems to be effective only in the early stages. The case histories of three patients over periods of 1.5-12 years are analysed and compared with the currently available results in the literature.

Female↗
PubMed1989

[Percutaneous transtracheal ventilation using Nu-Trake cricothyreotomy instruments and tracheoscopic follow-up examination].

Practicability and efficiency of the cricothyreotomy set Nu-Trake was investigated in corpses (n = 10) in the institute of Pathology and clinically in laryngectomy patients (n = 5) including endoscopical controls. The practicability proved to be good, the time needed to perform the coniotomy did not last longer than 2 minutes. But complications in the investigation on the corpses could not be avoided. These were missing the lumen of the trachea, perforation of the pars membranacea tracheae and fracture of the cricoid. The clinical investigation demonstrated a sufficient oxygenation and ventilation in all patients during the whole investigation period (30 min). This can be explained by the diameter of 7.2 mm of the used tube. Endoscopic controls showed a sufficient distance of the tip of the tubes from the pars membranacea tracheae and almost no bleeding within the trachea. Similar as with other coniotomy-technics the cricothyreotomy with the Nu-Trake set bears the risk of typical complications which have to be overcome by training of this important measure of emergency.

Aged↗
PubMed1987

[Failed intubation with case reports].

Failed intubation in three patients is reported. All three patients suffered sudden, extreme impaired of mask-ventilation. Twice a coniotomy with subsequent tracheostomy proved to be life saving and without permanent injury. In the other patient tracheostomy had been attempted without success, and subsequent, successful, coniotomy could not prevent cerebral ischemia. Coniotomy is the only correct emergency operation for failed intubation with impaired mask ventilation. It must be followed by a standard tracheostomy with closure of the coniotomy wound to prevent permanent laryngeal damage.

Adult↗
PubMed1986

[Sudden deafness today--a review].

Sudden deafness is not a disease in itself. Unilateral impairment of inner ear function of acute onset is a symptom of unknown origin. Recent results of basic science and clinical research favour an alteration of physiological properties and/or a variety of different diseases as a cause of this inner ear dysfunction. It is important to recognise these factors by audiometric and clinical investigations in order to differentiate the resulting inner ear dysfunction from sudden deafness. Our task is to find the cause in almost every case of hearing impairment so that the term "sudden deafness--of unknown cause" can be abandoned. So far we prefer a conservative treatment. Indicators of unfavourable prognosis should be assessed carefully since they demand special treatment, for instance tympanotomy.

Cochlea↗
PubMed1977

Pulmonary complications, ventilation and blood gases after upper abdominal surgery.

Forty patients who underwent elective cholecystectomy were examined preoperatively and during the first postoperative week by physical examination, measurement of FVC and FEV1, arterial pH and blood gas analyses, and chest x-ray. Postoperative pulmonary complications (p.p.c.) were detected in 30 (75%) of the patients. Simple auscultation was the most sensitive tool in discovering p.p.c., but 18 of the 30 patients with complications also had a pathological chest x-ray. Obesity, smoking postoperative naso-gastric tube and postoperative wound infection were predisposing factors for p.p.c. Six patients with preoperative pulmonary disease all had a progress in their lung pathology. There was no definite relationship of duration of anaesthesia or drainage of the abdominal wound to development of p.p.c. The patients with p.p.c. showed a deeper and more prolonged fall in Pao2 postoperatively than the normal group. None of the normals showed an arterial Po2 below 70 mmHg in the postoperative course, while 63% of the p.p.c. group did. FVC and FEV1 showed marked reductions from preoperative values on the first postoperative day, and then gradually increased to near preoperative values after 1 week. Arterial pH and Pco2 showed no definite changes during the postoperative course.

Adult↗