Paranasal sinuses and middle ear infections: what do they have in common?

P Marchisio1, E Ghisalberti, M Fusi

  • 1Institute of Paediatrics, University of Milan, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy. paola.marchisio@unimi.it

Insights

Pediatric otitis media and sinusitis share common risk factors and pathogens. Bacterial biofilms may explain treatment resistance and relapse in chronic sinusitis, similar to otitis media.

Area of Science:

  • Pediatric infectious diseases
  • Otolaryngology
  • Microbiology

Background:

  • Otitis media and sinusitis are prevalent pediatric conditions with overlapping pathophysiology.
  • Understanding middle ear disorders aids in comprehending sinus diseases.
  • Shared risk factors and nasopharyngeal pathogens link these common infections.

Purpose of the Study:

  • To explore the commonalities between otitis media and sinusitis in children.
  • To identify shared etiological factors and pathogens.
  • To investigate the potential role of bacterial biofilms in chronic sinusitis.

Main Methods:

  • Comparative analysis of pediatric otitis media and sinusitis.
  • Review of epidemiological and microbiological data.
  • Discussion of pathophysiology and treatment implications.

Main Results:

  • Acute sinusitis and otitis media share common bacterial pathogens, including Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis.
  • Anaerobic bacteria may be more prevalent in chronic sinusitis.
  • Bacterial biofilms are implicated in chronic sinusitis, mirroring findings in otitis media.

Conclusions:

  • Knowledge of otitis media pathophysiology informs understanding of sinusitis.
  • Bacterial biofilms present a challenge in treating chronic sinusitis, potentially explaining antibiotic resistance and relapse.
  • Shared causative agents and risk factors highlight the interconnectedness of these pediatric respiratory tract infections.

Related Concept Videos

Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Nose and Nasal Cavity01:24

Nose and Nasal Cavity

The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
Anatomy of the Ear01:16

Anatomy 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...
Microbiota of the Respiratory Tract01:29

Microbiota of the Respiratory Tract

The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more like...
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Tonsillitis I: Introduction01:30

Tonsillitis 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.