Related Experiment Video
Updated: Aug 8, 2026
07:06
Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
Chronic tympanic membrane perforation: middle ear pressure and tubal function
M Brattmo1, B Tideholm, B Carlborg
1Department of Otorhinolaryngology, University Hospital, Lund University, Malmö, Sweden. marianne.brattmo@oron.mas.lu.se
Acta Oto-Laryngologica
|July 24, 2003
Summary
Continuous middle ear pressure monitoring in chronic central perforation (CCP) reveals distinct daily patterns. These dynamic pressure changes differ significantly from healthy ears, highlighting unique regulatory processes.
Area of Science:
- Otolaryngology
- Biomedical Engineering
- Physiology
Background:
- Middle ear pressure regulation is crucial for hearing function.
- Chronic central perforations (CCP) can alter middle ear dynamics.
- Continuous monitoring provides insights into physiological pressure changes.
Purpose of the Study:
- To continuously monitor middle ear pressure in subjects with CCP.
- To investigate daily variations in middle ear pressure in sealed ears.
- To compare pressure dynamics in CCP ears with healthy ears.
Main Methods:
- Twenty-three patients with CCP considered for myringoplasty were studied.
- Middle ear pressure was monitored continuously, day and night.
- Ears were temporarily sealed to isolate from ambient air.
Main Results:
- A similar diurnal pressure pattern was observed in 21/23 subjects.
- Four distinct pressure periods were identified: coupling, erect position, sleep, and post-awakening.
- Negative pressure trends were noted during the erect position, with initial rises and stabilization during sleep.
Conclusions:
- Middle ear pressure regulation is a dynamic process.
- Ears with CCP exhibit unique pressure patterns compared to healthy ears.
- Continuous monitoring is valuable for understanding ME pressure dynamics in pathological conditions.
Related Concept Videos
01:14Assessing Body Temperature - Tympanic membrane
Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
01:16Anatomy of the Ear
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
01:30Tonsillitis I: Introduction
Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.
Etiology
Three primary contributing factors have been identified.
01:22Esophageal Perforation-I: Introduction
Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
The location of esophageal perforation can vary, occurring anywhere along the esophagus.
The location of esophageal perforation can vary, occurring anywhere along the esophagus.
01:28Esophageal Perforation-II: Clinical Manifestations and Management
Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:
Clinical Manifestations:
01:17Pericarditis III: Medical Management
The primary objectives of managing pericarditis are to determine the underlying cause, provide effective therapy for treatment and symptom relief, and promptly detect signs and symptoms of cardiac tamponade. The following outlines the essential aspects of medical management for pericarditis:ObjectivesDetermine the Cause: Identifying the underlying cause of pericarditis is crucial for targeted treatment. Causes include viral infections, autoimmune diseases, post-cardiac injury syndrome, and...