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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

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Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
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Pneumothorax-II01:27

Pneumothorax-II

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Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
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Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
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Changes in pulmonary function after definitive radiotherapy for NSCLC.

Tine Schytte1, Søren M Bentzen2, Carsten Brink3

  • 1Department of Oncology, Odense University Hospital, Denmark; Institute of Clinical Research, University of Southern Denmark, Denmark.

Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
|October 13, 2015
PubMed
Summary
This summary is machine-generated.

High radiation dose to the lungs and smoking significantly impact pulmonary function (PF) after non-small cell lung cancer (NSCLC) radiotherapy. Early PF changes plateau at six months, while high-dose lung volumes affect long-term lung function.

Keywords:
Definitive radiotherapyEarly and long-term changesNSCLCPulmonary function

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Area of Science:

  • Pulmonary Medicine
  • Radiation Oncology
  • Oncology

Background:

  • Assessing pulmonary function (PF) changes post-radiotherapy for non-small cell lung cancer (NSCLC) is crucial.
  • Spirometry, including forced expiratory volume in 1s (FEV1) and forced vital capacity (FVC), is used to measure PF.

Purpose of the Study:

  • To identify factors linked to early and long-term PF changes after definitive radiotherapy in NSCLC patients.
  • To analyze the impact of patient and treatment-related factors on PF outcomes.

Main Methods:

  • Early PF changes analyzed in 211 NSCLC patients (986 PF tests).
  • Long-term PF changes analyzed in 106 patients (1286 PF tests) relative to 12-month PF.
  • Multivariable analysis used to test patient and treatment factors as covariates.

Main Results:

  • Early PF changes plateaued at six months post-radiotherapy.
  • Smoking status and increasing V60 (lung volume receiving 60 Gy) correlated with decreased PF; smoking was protective.
  • Neoadjuvant chemotherapy negatively impacted FVC.
  • Treatment year and V60 significantly affected long-term FEV1 and FVC decline.

Conclusions:

  • Early pulmonary function changes in NSCLC patients stabilize around six months after radiotherapy.
  • A large volume of lung receiving high radiation dose is associated with long-term FEV1 reduction.