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Biomedical subjects

P Strauss

Publications and source records attributed to P Strauss.

At least 73 records · Page 4Linked to original sources
PubMed1977

[Do neomycin ointment dressings damage the inner-ear when used in the external auditory canal or the radical mastoidectomy cavity? (author's transl)].

When in low concentration (0.38%) in an ointment base neomycin within the middle ear does not damage the inner ear. Animal experiments show that doses 10 times greater do not damage the hair cells, but when in aqueous solution all hair cells are destroyed. Many years experience has confirmed that neomycin ointment packing for postoperative ears and infected radical mastoid cavities does not produce inner ear damage. These patients have been carefully monitored by audiometry.

Animals↗
PubMed1976

[Observation of the course of leukoplakia in the Larynx (author's transl)].

During a period of 15 years biopsies of the larynx of 3000 patients were taken out. At 319 patients the first histodiagnosis "Leukoplakia" was made. 10% carcinomas were found out later on grounds of observation of the course and by letter. 7% of these carcinomas occured within 1 year after the first histodiagnosis of "Leukoplakia". The first biopsy of these 7% carcinomas diagnosed as a "Leukoplakia" must be interpreted as a biopsy out of the marginal area of an already existent carcinoma. 3% of the carcinomas developed from the "Leukoplakia" just in the following years.

Biopsy↗
PubMed1976

[Late results of stapedectomy after 15 years (author's transl)].

Stapedectomy in Otosclerosis in using polyethylene struts or stainless-steel wire protheses results in permanent correction of the postoperative gap. The use of stainless-steel wire protheses however is successful with 94% of the patients regarding the postoperative gap, compared to 89% of the patients in using the polyethylene struts. The postoperative decrement of bone conduction is statistically significantly lower in the stainless-steel wire protheses than in polyethylene struts.

Audiometry↗
PubMed1976

[Recording and evaluation of audiometric data before and after operations in the middle ear a proposal for standardization (author's transl)].

For audiological analysis of the results of operations in the middle ear raising of audiometric values in 10 dB ranges is sufficient, differentiated for bone and air conduction, pre- and postoperatively for frequencies of 0.5/1/2/4/8 kHz. Mean values of frequencies of 0.5/1/2 kHz for air and bone conduction as well as for sound conduction component raised for each patient are used for statistical analysis exclusively. Two hypotheses are under trial, i.e. bone conduction does not change after operation and that postoperative sound conduction component remains possibly small. An audiogramm-like presentation of the results is preferred to frequency distribution curves. Data processing programmes, suited for several computer systems are available.

Audiometry↗
PubMed1976

[Therapeutic results in the treatment of otitis media in children with and without cleft palate (author's transl)].

Therapeutic results in the treatment of secretory otitis media were compared in children with and without cleft palate. The children were treated by the implantation of a ventilation tube. Pre- and postoperative data of a total of 551 patients were evaluated by a computer system. Following results were obtained: 1. Severity of change in the mean air-bone gap in patients with and without cleft palate was nearly the same. 2. The men airbone gap in both series after treatment showed no significant difference. 3. After evaluating impedance measurements, children without cleft palate showed a slight improvement of pressure patterns in the middle ear, on the contrary, children with cleft palate showed a significant pressure decrease. --Because of deterioration of pressure pattern in children with cleft palate, in spite of intensive treatment, implantation of a ventilatory tube for a longer period is necessary.

Child↗
PubMed1976

The correlation between permanent septal deformities and nasal trauma during birth.

Both the outer and inner nose as well as the position of the parietal bones of 972 patients at an age of 3 to 82, were examined giving evidence of the configuration of the infant's head at birth and thereby of the "severity" of the birth. In comparison with the sectio-patients the configuration of the infant's head in the birth canal reveals statistically recorded deformations of the outer and inner nose with an obstruction of the nasal breathing in 20% of the patients examined. The degree of the configuration has a definite influence on the degree of the nose deformation. The adjustment of the rotary direction of the infant's head in the 1st and 2nd vertex presentation determines the direction of the nose deformation. The demand of many authors for an immediate rhinological examination and corrections in the newborn child, for instance on the septum, to be performed still in the obstetrical department, must due to our own examinations be advocated.

Adolescent↗
PubMed1975

[Medial or lateral placement of the graft in myringoplasty comparative studies of both operation techniques using electronic data processing (author's transl)].

After medial placement of the graft in myringoplasty the remaining air-bone gap within the speech range is on an average approximately 10,- dB. This remaining air-bone gap is, according to secured statistics, on an average approximately 10 dB lower than in a lateral placement of the graft. The bone conduction does usually not change in either operation method. The additional support of meatal skin graft on the underlayed fascia does not have any influence on the audiologic finding. The percentage of the reperforations is in type I with a rate of 18% rather high; both operation methods do not significantly differ.

Audiometry↗