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Respiratory System Abnormal Finding II: Palpation and Auscultation01:31

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In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
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Physical Assessment of the Respiratory Tract III: Percussion01:29

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Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

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Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
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Physical Assessment of the Respiratory Tract IV: Auscultation01:28

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Assessment of the Abdomen I: Inspection and Auscultation01:25

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Acoustic parameter changes after bariatric surgery.

Fakih Cihat Eravci1, Barış Doğu Yildiz2, Kürşat Murat Özcan3

  • 1Department of Otorhinolaryngology, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey.

Logopedics, Phoniatrics, Vocology
|July 2, 2021
PubMed
Summary
This summary is machine-generated.

Bariatric surgery significantly impacts voice acoustics. Weight loss alters vocal tract dimensions, affecting fundamental frequency, jitter, shimmer, and formant frequencies, particularly in patients with reduced Mallampati scores.

Keywords:
Obesityacoustic analysisbariatric surgeryformantvoicevowel

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Area of Science:

  • Otolaryngology
  • Speech Science
  • Bariatric Surgery Research

Background:

  • Obesity can alter pharyngeal lumen size and vocal tract configuration.
  • Vocal tract dimensions are critical determinants of voice characteristics.

Purpose of the Study:

  • To investigate acoustic parameter changes in vowels post-bariatric surgery.
  • To correlate voice changes with weight loss and Mallampati score alterations.

Main Methods:

  • Prospective longitudinal study of 15 bariatric surgery patients.
  • Acoustic analysis of vowels (/a/, /e/, /i/, /o/, /u/) pre- and post-surgery (6 months).
  • Evaluation of Fundamental Frequency (F0), Formant Frequencies (F1-F4), Jitter, Shimmer, and Noise-to-Harmonics Ratio (NHR).

Main Results:

  • Significant weight loss (122kg to 80kg) and BMI reduction observed.
  • General trends: decreased F0, increased jitter and shimmer.
  • Specific formant frequency changes showed statistical significance between groups based on Mallampati score changes.

Conclusions:

  • Successful weight loss after bariatric surgery can alter specific voice characteristics.
  • Changes in vocal tract length, shape, tongue position may influence formant frequencies.
  • Acoustic voice analysis can detect subtle changes related to significant weight reduction.