CT onset of influenza A (H1N1) complicated with severe pneumonia in two typical cases

W Wang1, B Qiu, Q Li

  • 1Department of Endocrinology, Second Hospital of Haerbin Medical University, Haerbin, China.

Panminerva Medica
|December 25, 2010
PubMed

Insights

Novel influenza A (H1N1) pneumonia can progress rapidly but may resolve within weeks with effective control. Chest CT scans reveal key features of this severe respiratory complication.

Area of Science:

  • Infectious Diseases
  • Radiology
  • Pulmonology

Background:

  • The 2009 novel influenza A (H1N1) pandemic caused significant global health concerns.
  • Pulmonary complications, particularly pneumonia, were a leading cause of mortality.
  • Understanding the imaging characteristics and disease course of H1N1 pneumonia is crucial for patient management.

Observation:

  • This report details chest CT findings in two cases of severe influenza A (H1N1) pneumonia.
  • The study investigates the progression and resolution patterns of the infection.
  • CT imaging provides insights into the onset, evolution, and outcomes of H1N1 pneumonia.

Findings:

  • Influenza A (H1N1) pneumonia can exhibit rapid progression on chest CT.
  • Effective control of the infection can lead to recovery within two to three weeks.
  • CT findings illustrate the dynamic changes associated with H1N1 pneumonia.

Implications:

  • Chest CT imaging is valuable for diagnosing and monitoring influenza A (H1N1) pneumonia.
  • The findings aid clinicians in understanding the typical course of severe H1N1 pneumonia.
  • Early recognition and management of H1N1 pneumonia can improve patient outcomes.

Related Concept Videos

Influenza01:27

Influenza

Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

The pathophysiology of pneumonia involves the following steps:
Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following: