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Related Concept Videos

What is an Experiment?01:12

What is an Experiment?

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An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
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Thomson's e/m Experiment01:19

Thomson's e/m Experiment

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In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
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Controls in Experiments01:13

Controls in Experiments

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When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
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Randomized Experiments01:13

Randomized Experiments

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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
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Crossover Experiments01:16

Crossover Experiments

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Crossover experiments, also called the repeated-measurements design, is a study design in which all experimental units are exposed to all treatments in different periods. Crossover experiments are generally used in psychology, the pharmaceutical industry, agriculture, and medicine.
Crossover designs are performed even with smaller sample sizes since the samples can act as their controls. These are better than simple randomized trials since patients are exposed to all the treatments.
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The Stanford Prison Experiment03:20

The Stanford Prison Experiment

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The famous and controversial Stanford Prison Experiment, conducted by social psychologist Philip Zimbardo and his colleagues at Stanford University, demonstrated the power of social roles, social norms, and scripts.
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Related Experiment Video

Updated: Feb 12, 2026

Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
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Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children

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ENT Foreign Bodies: An Experience.

Al Hussein Awad1, Mostafa ElTaher1

  • 1Department of Otorhinolaryngology, Faculty of Medicine, Sohag University, Sohag, Egypt.

International Archives of Otorhinolaryngology
|April 6, 2018
PubMed
Summary

Ear, nose, and throat foreign bodies are common emergencies, especially in children. Proper management is crucial to prevent serious complications from these incidents.

Area of Science:

  • Otorhinolaryngology
  • Pediatric Emergency Medicine

Background:

  • Foreign bodies (FBs) in the ear, nose, and throat (ENT) are frequent occurrences, particularly in pediatric populations.
  • The spectrum of complications associated with ENT FBs ranges from minor issues to life-threatening conditions, necessitating prompt recognition and management.

Purpose of the Study:

  • To investigate the clinical characteristics, removal techniques, outcomes, and complications of ENT foreign bodies.
  • To analyze data from a tertiary referral hospital to understand the epidemiology and management of ENT FBs.

Main Methods:

  • A hospital-based, cross-sectional, retrospective study was conducted from July 2014 to June 2016.
  • Data were collected from 1,013 patients (mean age 12.5 years) presenting with ENT foreign bodies.
Keywords:
emergencyforeign bodiesotorhinolaryngology

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Main Results:

  • Foreign bodies constituted 30% of ENT emergencies, with children under 6 years old being the most affected group.
  • Swallowed foreign bodies were most common (53.6%), followed by aural (24.68%), nasal (19%), and inhaled (2.6%).
  • General anesthesia was required for the removal of 54.69% of ENT foreign bodies.

Conclusions:

  • Foreign bodies in the ear, nose, and throat are a significant cause of emergency visits in otorhinolaryngology.
  • Children are the primary demographic affected by ENT foreign bodies, with the throat being the most common site of impaction.
  • Effective management of ENT foreign bodies is essential to mitigate potential complications.