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Biomedical subjects

W Mann

Publications and source records attributed to W Mann.

At least 253 records · Page 14Linked to original sources
PubMed1977

[Bacteriological findings in chronic infantile tonsillitis (author's transl)].

Under general anaesthesia cultures were taken from infantile tonsils prior to T & A. The bacteriological results and the serological classification of hemophilus are questionning literature reports. According to our findings one must consider haemophilus influencae as a resident of the common oral flora. There was no significant difference culturing tonsils with or without repeated antibiotic treatment. Hemophilus influencae combined with beta-hemolytic streptococci is common. Immunological considerations against infantile T & A, based on bacteriological observations are questioned.

Anti-Bacterial Agents↗
PubMed1977

[Comparison of x-ray, echography and sinumanometry findings in paranasal sinusitis (author's transl)].

Comparative echography and x-ray findings in suspected paranasal sinus disease reveal a good liability of negative x-ray reports. Positiv findings i.e. the diagnosis of mucous membrane thickening in the maxillary sinus and clouding of the frontal sinus are often misleading. Echography is reliable in diagnosing retention of sinus secretions. The patency of the maxillary ostium for air was tested in patients with complete opacity of the sinus. There was a significant difference between air or fluid containing sinuses, using echography as a control. Complete radiographic opacity has no bearing on ostial patency. In air containing sinuses with radiographic opacity, ostial permeability is slightly affected, the ostium nevertheless being patent for respiratory pressure changes.

Humans↗
PubMed1976

[Aerosinusitis (author's transl)].

After distinguishing a nonobstructive from an obstructive form of aerosinusitis, different pathological changes are discussed. Two cases illustrate the possibility of endoscopic removal of submucous sinus hematomas. Nonobstructive aerosinusitis may be due to highly viscous paranasal secretion. In obstructive sinus disease intranasal application of vasoconstrictors may prevent additional aerosinusitis. In 71 patients with obstructive frontal and maxillary sinusitis, aerosinusitis followed a negative sinus pressure of 66 mm Hg and 35 mm Hg respectively. Intranasal application of a vasoconstrictive and antiexsudative solution for prophylaxis of aerosinusitis lead to an increase of negative pressure tolerance of 47-57 mm Hg.

Adult↗
PubMed1976

[Comparison between a titrimetric and a photometric method for determination of serum lipase activity (author's transl)].

Comparative studies of two methods for the determination of serum lipase activity (SLA) in human serum show in both methods, the one titrimetric the other photometric, a comparable sensivity and comparable results, especially within the group of subjects suffering from pancreactic diseases. The values of SLA within the group of 45 patients with acute and chronic pancreatic diseases and within a control group of 39 persons without pancreatic affections show a marked correlation for each group. The values of SLA obtained with the titrimetric method of Rick are found to be higher, which would be due to better conditions of the procedure. Also in the study of precision the titrimetric method gave a better result. The determination of SLA with both methods includes post-heparin-lipase-activity (PHLA).

Acute Disease↗
PubMed1976

[Functional results of tracheoplasties].

There is a direct correlation between airway resistance and residual tracheal lumen in tracheostenosis. Airway resistance has been recorded in 185 patients with tracheostenosis using body plethysmograph. High grade stenosis of the trachea is better diagnosed with body plethysmograph compared with direct inspection, a pertinent observation mainly in bordering cases. Tracheoplasties were performed in 74 patients using the body plethysmograph. Postoperative courses and functional results were observed. The average tracheal diameter was 8-9 mm at the end of our study with corresponding airway resistance of 24-34 mm H2O/l u. sec. These functional results reflect a good tolerance to average labour impound.

Airway Resistance↗
PubMed1976

[Misleading x-ray diagnosis due to maxillary sinus asymmetries (author's transl)].

Asymmetries of the maxillary sinus with partial or total radiographic opacity mislead to the diagnosis of chronic sinusitis. Using three radiographic standard projections, computerised planimetric analysis and cephalometric studies helped to explain radiological opacity in 26 patients. So called "mucosal thickening" may be due to varying development of the zygomatic recess. Total opacity was caused not only by unilateral volume difference exceeding 30%, but also by straightning of the first lateral line in basal views of small and moderate sized sinuses. Cephalometric analysis in maxillary sinus asymmetry revealed ipsilateral transversal underdevelopment of facial- and skullbone. Reduced pneumatisation of the ethmoid, spenoid, mastoid and frontal sinus in diminishing order was also ipsilateral. Using photostat analysis there was nevertheless no correlation between facial- and coexisting maxillary sinus asymmetry.

Cephalometry↗
PubMed1976

[Ariway resistance in intensive care patients (author's transl)].

With the modified interrupition technique airway resistance and tidal volume of bed-ridden patients can be measured simultaneously. This objective measure causes no distress to the patient. The effect of Noleptan on tidal volume and airway resistance has been studied in 28 patients (most of them have been unconscious). Tidal volume was improved significantly leading to an increases of arterial pO2. The bronchial airway resistance was uneffected. Our findings underline the postive experiences with Noleptan in clinical trial of intensive care.

Adult↗
PubMed1976

[Comparative x-ray and ultrasound examination in infantile sinusitis (author's transl)].

59 children without symptoms of sinusitis or URI, aged 6 to 8 years had positive radiologica findings of sinus pathology in 32%. Correspond ultrasonographic findings were positive in 22%. A correlation was detected in 67,8%. In non correlating cases, x-ray had a tendency to more pathological findings in 63%. When correlating x-ray and ultrasound in a diagram of 118 maxillary sinuses only 6% had changes worth treatable. The classical radiological signs os sinusitis in children are therefore questionable.

Age Factors↗
PubMed1975

[Echography of the paranasal sinuses (author's transl)].

Echography, combined with routine X-rays of the paranasal sinuses, has been used in more than 300 patients. The diagnosis was controlled by clinical examination, endoscopy and operation. The combination of the two techniques reduces the diagnostic error in paranasal sinus disease to 5%.

Germany, West↗
PubMed1975

Persistent cutaneous fistula in the neck.

A cutaneous fistula may develop from an infected tooth. The lesion usually arises without dental symptoms and for this reason is often incorrectly diagnosed. For correct diagnosis intraoral radiographs and essential. Elimination of the infectious process and curettage of the periapical lesion are indicated. Usually no further treatment is warranted.

Child↗
PubMed1975

The indirect measurement of nasal airway resistance.

This is a comparative study of two indirect methods for measuring nasal airway resistance. 1. In 499 patients, nasal airway resistance was studied with the alternating pressure principle. Using mathematical and computer analysis, nasal resistance averaged 18,7 and 15,4 mm H2O/1/sec., respectively. This correlates well with literature data of nasal resistance, as defined by different methods. 2. In 760 patients nasal airway resistance was studied with the body plethysmograph. The mean value was 11,5 mm H2O/1/sec. We believe, that there is a methodical failure due to leakage of the mask during exspiration against a mechanical closing mechanism of the body plethysmograph.

Adolescent↗