Flu and stroke – the fear of the cold season

When it is cold, respiratory diseases, cardiovascular diseases, immune deficiency diseases, and bone and joint diseases increase. Among the diseases related to winter weather, flu and stroke are the most worrying.

In winter, children are susceptible to flu and respiratory diseases. In photo: Doctor at Binh Lieu District Medical Center (Quang Ninh) examines a child patient.

Cold wind comes, illness comes

According to information from the health sector, in Binh Dinh province there was a death due to influenza A/H1pdm infection. Mr. Hoang Minh Duc, Director of the Department of Preventive Medicine ( Ministry of Health ) said that this male patient was infected with a common seasonal flu strain. This flu virus was first discovered during the 2009 flu pandemic and is called pandemic09 (pdm).

The World Health Organization has warned that influenza A/H1N1 can be fatal in people with chronic diseases or weakened immune systems. Each year, the world records about 250,000-500,000 flu-related deaths, of which influenza A/H1N1 is one of the common agents.

Cold weather can cause blood vessels to constrict, leading to increased blood pressure and increased risk of cardiovascular diseases, of which the most worrying is stroke. Stroke is currently a very big problem that many people are concerned about. The number of people suffering from it is increasing and getting younger, with an incidence rate of nearly 300 cases per 100,000 people.

Experts say that when the weather is cold, the body has self-defense reactions such as secreting more catecholamine hormones that constrict peripheral blood vessels, increasing central blood vessel pressure, causing high blood pressure.

In addition, the risk of stroke in cold weather or when the weather changes erratically tends to be higher in the elderly, those with underlying diseases such as high blood pressure, diabetes, cardiovascular disease, obesity, etc. People with underlying factors such as aneurysm, damaged blood vessel walls in the brain are very susceptible to rupture causing cerebral hemorrhage.

In winter, people tend to eat more, especially fat to store energy. Less exercise and less water intake can also easily increase blood pressure, poor blood circulation and increase the risk of stroke.

Not to mention, during the cold season, many people tend to be less active, leading to weakened muscles and joints. People with arthritis may feel increased pain in cold weather, due to constriction of blood vessels and reduced blood flow to the joints. Stiffness and pain can reduce mobility, affecting quality of life.

Proactively reduce risk

To prevent flu outbreaks during the cold season, the best preventive measure is to get vaccinated against flu every year and follow personal hygiene measures, avoiding close contact with sick people. When experiencing flu symptoms, especially high fever and body aches, people should go to the doctor early for timely diagnosis and treatment to avoid dangerous complications.

Doctor Nguyen Thi An, Safpo/Potec Vaccination System recommends that everyone over 6 months of age should get vaccinated against the flu every year (because flu virus strains can change every year), especially children from 6 months to 4 years old, people over 50 years old, people with chronic lung disease, chronic heart disease, kidney disease, liver disease, hematological and metabolic disorders (including diabetes, people with immunodeficiency), pregnant women, and medical staff.

To prevent strokes from occurring in the winter, the time of changing seasons, stroke screening plays an important role. There are many risk factors for stroke that patients do not detect themselves. Active screening will help each person promptly detect abnormal factors that can cause potential strokes in the body.

Doctors are concerned that most people with high blood pressure do not initially know they have high blood pressure. They only discover the disease when they have kidney failure, heart failure, or stroke. People with type 2 diabetes also do not have obvious symptoms such as eating a lot, drinking a lot, urinating a lot, or losing weight to detect it early.

Many people go to the hospital when they have complications of infection, slow-healing infected wounds or strokes, only to find out that the cause is diabetes. According to statistics, about 15-30% of diabetic patients are diagnosed with diabetes when they go to the emergency room or are treated for a stroke.

Therefore, disease prevention is very important. Recognizing the early signs of stroke, going to the nearest hospital for intervention and treatment during the "golden time" to save the brain is equally important.

The golden time for emergency treatment for ischemic stroke is about 3-4.5 hours, and for hemorrhagic stroke is within 8 hours from when the patient first shows symptoms of stroke such as slurred speech, slurred speech, difficulty speaking, limb weakness, crooked mouth, one-sided facial deviation, headache, dizziness, etc.

Depending on the case, the golden time for stroke emergency treatment can last up to 24 hours or more. However, the patient should be intervened as soon as possible.

Regarding health protection measures in cold weather, according to recommendations from the health sector, people should limit going outdoors when the weather is too cold and windy, especially between 9pm and 6am.

When going out, wear warm clothes to protect against the wind, such as a coat, long pants thick enough to keep warm, a scarf, hat, gloves, socks, mask, etc. Always keep your body dry, avoid getting wet, especially the neck, hands, and feet when going out and when sleeping to limit illnesses caused by colds.

Avoid exposure to cigarette smoke, charcoal smoke, and alcohol. People in mountainous areas should be especially careful because drinking alcohol will constrict blood vessels, causing high blood pressure, which can lead to stroke and death. Avoid drinks containing stimulants such as caffeine.

For heavy workers, the elderly, and children, it is necessary to provide more starch, protein, fat, and vitamins than in other seasons to increase the body's heat to fight the cold, especially supplementing vitamins A and C to increase the body's resistance. Particularly, people with high blood pressure, cardiovascular disease, chronic respiratory disease, musculoskeletal disease, etc. that have been diagnosed must pay attention to complying with the principles of taking medication, having a reasonable exercise and nutrition regimen according to the doctor's instructions.