When idiopathic pulmonary fibrosis develops, tissue deep in the lungs becomes thick and scarred, likely due to a response to an unknown substance. The condition affects approximately 100,000 individuals in the United States, and up to half die within three years of being diagnosed.
Almost all patients with idiopathic pulmonary fibrosis experience shortness of breath. The second most common symptom is cough. Shortness of breath is a known warning sign that a patient has a serious form of the disease, but little is known about the importance of cough.To investigate, Christopher Ryerson, MD, of the University of California, San Francisco, and his colleagues studied 242 patients with idiopathic pulmonary fibrosis. They found that cough was present in 84% of patients. It was more common in patients with advanced disease and in those who had never smoked. Also, the presence of cough predicted more rapid disease progression, regardless of the severity of a patient's disease. The study's findings indicate that the presence of cough may predict which patients are likely to die prematurely or need a lung transplant in the near future.
To investigate, Christopher Ryerson, MD, of the University of California, San Francisco, and his colleagues studied 242 patients with idiopathic pulmonary fibrosis. They found that cough was present in 84% of patients. It was more common in patients with advanced disease and in those who had never smoked. Also, the presence of cough predicted more rapid disease progression, regardless of the severity of a patient's disease. The study's findings indicate that the presence of cough may predict which patients are likely to die prematurely or need a lung transplant in the near future.
The authors concluded that patients with idiopathic pulmonary fibrosis who cough may have a worse prognosis compared with patients who do not cough. While additional studies are needed to validate the results, patients who cough may benefit from closer monitoring and more aggressive treatments.
"These findings improve our understanding of cough in idiopathic pulmonary fibrosis," said Dr. Ryerson. "The reason for the association between cough and never having smoked is unknown, but may provide insight into the pathogenesis of cough in idiopathic pulmonary fibrosis and thus prompt future research in this area," he added.
Amy Molnar | EurekAlert!
Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel
Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences