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Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required

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Related Experiment Video

Updated: Jul 13, 2026

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation
03:58

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation

Published on: August 2, 2024

Prospective, randomized, single-blind, controlled study to compare two methods of performing adenoidectomy.

N E Jonas1, Rauf Sayed, C A J Prescott

  • 1Division of Otolaryngology, University of Cape Town Medical School, H-53 Old Main Building, Groote Schuur Hospital, Observatory, Cape Town 7925, South Africa.

International Journal of Pediatric Otorhinolaryngology
|July 14, 2007
PubMed
Summary

Suction diathermy adenoidectomy resulted in smaller adenoid size at six months compared to curettage. While statistically significant, the clinical significance of this difference in adenoid regrowth was minimal.

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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

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Last Updated: Jul 13, 2026

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation
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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Published on: June 20, 2018

Area of Science:

  • Otolaryngology
  • Pediatric Surgery

Background:

  • Adenoidectomy is a common procedure for pediatric airway obstruction.
  • Comparing surgical techniques is crucial for optimizing patient outcomes.

Purpose of the Study:

  • To compare suction diathermy ablation versus curettage for adenoidectomy.
  • To evaluate operative time and adenoid regrowth at 6 months post-surgery.

Main Methods:

  • Prospective, randomized, single-blind study involving 100 children.
  • Comparison of suction diathermy and curettage adenoidectomy by a single surgeon.
  • Assessment of adenoidal size and symptoms at 6-month follow-up.

Main Results:

  • No significant difference in operative time for adenoidectomy alone.
  • Suction diathermy took longer when combined with tonsillectomy (P<0.001).
  • Suction diathermy group showed significantly smaller residual adenoid size at 6 months.

Conclusions:

  • Suction diathermy effectively reduced adenoid size 6 months post-surgery.
  • The observed size difference, though statistically significant, lacked clear clinical significance.