People who have heart attacks or other heart conditions who do not experience chest pain are commonly overlooked and undertreated at the hospital, often resulting in greater fatality rates in this group of patients. A new study in the August issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians, shows that cardiac patients presenting to the hospital without chest pain have triple the death rate of other cardiac patients and are less likely to receive medications to slow the progression of a heart attack.
“While the majority of people who have acute coronary syndromes, such as heart attacks and unstable angina, feel chest pain, some do not, but, instead, may experience atypical symptoms of fainting, shortness of breath, excessive sweating, or nausea and vomiting” said the study’s lead author, David Brieger, MBBS, PhD, Concord Hospital, Sydney, Australia. “Other than excessive sweating, each of the dominant symptoms of a heart attack not accompanied by chest pain independently identifies a population that is at increased risk of dying.”
A group of international researchers analyzed data from the Global Registry of Acute Coronary Events (GRACE), a registry of 20,881 patients from 14 countries, including the United States, Canada, Australia, Great Britain, and France. These patients were hospitalized with a variety of heart conditions from July 1999 to June 2002. Of the 1,763 cardiac patients who did not experience chest pain, 13 percent died in the hospital compared to 4.3 percent of those with chest pain. In addition, 23.8 percent of patients without chest pain were initially misdiagnosed when they arrived at the hospital, compared to only 2.4 percent of heart patients who experienced typical symptoms. Patients without chest pain tended to be older women and to have a history of diabetes, heart failure, or hypertension, as opposed to patients with chest pain who were more likely to be smokers with plaque buildup in their coronary arteries. Patients with atypical symptoms were also more likely to have the unfavorable outcomes of heart failure, cardiogenic shock, arrhythmias, and renal failure.
Improving memory with magnets
28.03.2017 | McGill University
Graphene-based neural probes probe brain activity in high resolution
28.03.2017 | Graphene Flagship
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
28.03.2017 | Life Sciences
28.03.2017 | Information Technology
28.03.2017 | Physics and Astronomy