Chest pain is recognized as a symptom of heart troubles, but one out of five women aged 55 years or less having a heart attack do not experience this symptom, according to a study led by the Research Institute of the McGill University Health Centre (RI-MUHC).
The research findings, gathered from partner institutions across Canada including the University of British Columbia (UBC), are the first to describe this phenomenon in young women. The study, published in JAMA Internal Medicine, has implications for emergency room healthcare professionals and for at-risk individuals, as seconds matter when it comes to the accurate diagnosis and treatment of heart attack.
"We need to move away from the image of an older man clutching his chest, when we think about acute coronary syndrome (ACS - the umbrella term referring to heart attacks and angina), says senior author of the study, Dr. Louise Pilote, director of the Division of General Internal Medicine at the MUHC and McGill University and professor of medicine at McGill University.
"The reality is that chest pain, age and gender are no longer the definers of a heart attack. Our study demonstrates that young people and women who come into the emergency without chest pain, but other telltale ACS symptoms such as weakness, shortness of breath and/or rapid heartbeats, are in crisis. We need to be able to recognize this and adapt to new standard assessments in previously unrecognized groups such as young women."
"Women less than 55 years old are more likely to have their ACS misdiagnosed in the ER than men, and they have higher risk of death," adds first author Dr. Nadia Khan, associate professor of Medicine, UBC. "The public and physicians need to be aware of this problem."Pain not an indicator of disease severity
"It is important to remember that chest pain is a main indicator of ACS, but not the only one," says Dr. Pilote.
"We need to remind ourselves that even without chest pain, something serious could still be happening," adds Dr. Khan.
This research was made possible thanks to funding from the Heart and Stroke Foundation and the Canadian Institutes of Health Research (CIHR).Related links:
Investigators may unlock mystery of how staph cells dodge the body's immune system
22.09.2017 | Cedars-Sinai Medical Center
Monitoring the heart's mitochondria to predict cardiac arrest?
21.09.2017 | Boston Children's Hospital
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
19.09.2017 | Event News
12.09.2017 | Event News
06.09.2017 | Event News
22.09.2017 | Life Sciences
22.09.2017 | Medical Engineering
22.09.2017 | Physics and Astronomy