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M Zółtowski

Publications and source records attributed to M Zółtowski.

At least 19 recordsLinked to original sources
PubMed1999

[The application of aerodynamic method for the evaluation of the efficiency of the vocal, articulation and respiratory organs during singing and playing wind instruments].

This paper discusses the application of the aerodynamic method for the estimation of the efficiency of the vocal articulation and respiratory organ during singing and playing wind instruments. An evaluation of the vocal and respiratory organ was carried out on the basis of an analysis and correlation between the following parameters: PV--phonation volume, MPT--maximum phonation/playing time, SP--subglottal/blowing pressure, MFR--mean flow rate, GR--glottal resistance, EP--expiratory power, W--work. Volume and airflow was measured by a pneumotachometr with an electronic spirometer. The application of a plethysmographic booth made it possible to carry out non-invasive, indirect measurements of the subglottal and blowing pressure. Changes of pressure during singing and playing were recorded in the form of an aerodynamogram curve. This curve was used to determine the maximum duration of sound. Other quantities were derived from a mathematical analysis.

Humans↗
PubMed1997

[A study of the phenomenon of voice intonation: analysis, usage and diagnosis].

The aim of this work was to study the average rise time (RT) and average flow rate (MRT) in utterance. Data were collected from 48 singers and 44 patients. The group of patients included cases of modulus vocale, polypus laryngis, paresis bilateralis, hemiparesis, and CA laryngis. Various characteristics of utterance were recorded synchronously: the frequency and intensity of the fundamental laryngeal tone were measured with a laryngophone, a microphone was used to monitor acoustic radiation from the mouth, and a pneumotrachometer was applied for the measurement of flow rate. The data were stored and analysed with the use of a computer. Results show that the analysis carried out in the study describes the distinctive characteristics of normal and pathologic utterance. The main findings are as follows: a) rise time (RT) decreases with increasing loudness and pitch of the sound and is also shorter in staccato than inlegato sounds; b) during the initial transient of staccato sounds, the average flow rate in the glottis increases with intensity and pitch of the sound; c) pre-fonation time (TPP) and air volume do not differentiate normal and pathologic utterance; d) in cases of voice pathology, the analysis of utterance described in this study can be used for the evaluation of therapy and rehabilitation.

Female↗
PubMed1996

[Aeroacoustic and pneumotachometric studies in the evaluation of vicarious voice in laryngectomy patients].

The aim the study was showed some spirometric and aerodynamic parameters of the respiratory system and of vicarious voice at laryngectomized patients, which were performed in plethysmographic cabin and by using of pneumotachometer. Clinical material stated 20 laryngectomized men, aged 45-77 years, who were divided into two groups (by Pruszewicz): A-well or very well speaking and B-bad speaking. The obtained results showed that laryngectomized well or very well speaking made bigger work of the respiratory system during vicarious voice than bad speaking ones. The well and very well speaking patients used twice (in case of consonants) and three times (in case of vowels) the volume of oesophageal-throat's air greater than bad speaking patients. Aerodynamic examinations in plethysmographic cabin allows for monitoring of vicarious voice at laryngectomized after operation and qualification some of ones for voice prosthetization in the aim of voice amplification.

Aged↗
PubMed1993

[Scribner's shunt as a first step in creation of a Brescia type fistula].

The aim of this paper is to present the advantages of performing a vascular access in two steps in uremic patients requiring urgent hemodialysis. In 15 patients age 28-68 yrs. (mean 50 yrs.) with end stage renal disease the Quinton-Scribner shunt linking radial artery with cephalic vein was placed on a forearm, and dialysis was started on the same day. After 18-35 days (mean 26 day) in 12 patients depending on efferent vein arterialization the second step operation of creating Cimino-Brescia fistula was performed on the same vessels. The fistula was immediately good for punction with standard needles. In 3 patients, due to low arterial output the vein condition did not allow for the second step operation. The results of our observations show an efficiency of the proposed method in establishing an acute and chronic vascular access which was as effective as routinely constructed shunts. Our patients avoided complications of central vein cannulation and the hospitalization period was shortened.

Adult↗
PubMed1977

[Significance of laparoscopy in decisions on the preventive therapy of various ovarian tumors in girls].

Of 125 laparoscopies, carried out in the Clinic of Surgical Gynaecology in the years 1972 to 1974, 12 referred to girls aged from 15 to 18 years (9,6%). As a consequence of the mentioned diagnostic-therapeutic procedure 6 girls (50%) avoided laparotomy. Laparoscopy is an excellent technique to establish diagnosis in cases of ovarian tumours especially in the developmental age.

Adolescent↗