Archives: December 2023
Can Cold Weather Cause More Heart Attacks?
The weather is not typically at the top of the list when we think of the causes of heart attacks. To be sure, lack of exercise and poor dietary choices are the primary causes behind this deadly condition. However, patients must understand what they’re feeling during cold weather and whether it is a warning sign of cardiovascular disease or an impending heart attack.
Here in Nevada, temperatures can get pretty cold, and regardless of what we wear, our bodies try to compensate for even small temperature changes. The body does so in the cold by constricting blood vessels to retain more heat in the core. This is why your skin turns white and blue if exposed to very cold conditions. Remember that your vascular system requires body heat to work correctly, so by reducing blood flow to less important peripheral structures, our body can keep us alive longer, for example, in an emergency. Of course, when a blood vessel constricts, less blood circulates. This is rarely a concern in an adult with a healthy cardiovascular system, as even reduced blood flow still provides enough oxygen throughout the body.
What to Expect: PET/CT Stress Testing
A PET/CT stress test is an advanced diagnostic option for finding the cause of new or worsening chest pain or shortness of breath, determining the risk of heart disease, evaluating how cardiovascular treatment is progressing, and following a patient’s recovery after a heart attack or other major coronary event. Most of our PET scanning and PET stress tests performed by our physicians are done in our Summerlin office.
A PET/CT stress test gives your heart specialist images of blood flow to the heart muscle. To generate these images of your heart, you will receive infusions of a radioactive tracer through an IV. The radioactive tracer has no significant side effects and is not a contrast dye. It does not contain iodine and will not harm your kidneys. PET/CT stress testing is safe and can help your cardiologist diagnose heart disease accurately, allowing for a more comprehensive treatment plan.
We also measure vitals like heart rhythm, heart rate, and blood pressure during this time.