Category I: Babies within seven days and pregnant women over nine months. The plane lacks oxygen at high altitude, and the vibration that may occur during the flight will affect both pregnant women and the fetus, and the change of air pressure may also lead to premature delivery of the fetus. Therefore, pregnant women should fly one and a half months after delivery and be affected by delivery. Newborn babies may have respiratory disorders on the plane and are not suitable for flying.
The second category: myocarditis, myocardial infarction within one month, cerebrovascular accident within two weeks, malignant hypertension patients. Dr. Zhang Dongcheng from the Asia-Pacific Cardiovascular Center of the Second Affiliated Hospital of Guangzhou Medical College pointed out that these cardiovascular diseases are basically high-risk diseases and are usually unstable. The high air pressure when the plane flies at high altitude can easily lead to the patient's cardiovascular expansion or even rupture, which is very dangerous. Therefore, patients with myocarditis and myocardial infarction cannot fly for at least one month, and patients with cerebrovascular accidents (commonly known as "stroke") cannot fly for at least half a month. Patients with malignant hypertension should control their blood pressure within a basically normal range before boarding the plane.
Category III: Patients with severe lung diseases (pulmonary tuberculosis cavity, cor pulmonale with pulmonary insufficiency), pneumothorax and congenital pulmonary cyst. Zhang Nuofu, clinical deputy director of the Institute of Respiratory Diseases of the First Affiliated Hospital of Guangzhou Medical College, pointed out that there are a lot of germs in patients with pulmonary tuberculosis cavity, which are highly contagious and should not be given an opportunity. This kind of patient can only get on the computer after the cavity is closed and the physical examination is sterile. Pulmonary heart disease is a heart disease caused by lung or chest diseases, which is prone to hypoxia and dyspnea in high altitude and hypoxia environment. Pneumothorax is an emergency. After the onset, patients will feel severe chest pain and generally need immediate treatment, which is not suitable for flying. The high-pressure and low-oxygen environment when the plane is flying at high altitude also affects the patients with congenital pulmonary cyst, and it is only possible to board the plane if the lung function is not seriously damaged.
The fourth category: patients with acute sinusitis and otitis media, mandibular fixation surgery. Zhang Siyi, deputy director of the Department of Otolaryngology, Guangdong Provincial People's Hospital, said that sinusitis and otitis media are closely related. The nasal cavity and ear canal are sensitive. Because the plane flies at high altitude, the atmospheric pressure is very high, which is easy to aggravate the inflammation of sinusitis, easily cause perforation of tympanic membrane in middle ear canal, and patients with otitis media are also prone to airsickness, so it is not suitable for flying. As for when you can take it, especially on a long flight, because the personal situation of men, women and children is different, you need a doctor's assessment. If it is really necessary, wait until the symptoms improve before flying, or go to the hospital for examination first. According to the doctor's instructions, you can't make a decision without authorization, so as not to aggravate your illness and bring unpleasant consequences to your journey. Also, people who have undergone fixed jaw surgery should not fly because of the special environment at high altitude, because the recovery degree of the affected part varies from person to person after surgery. It's best to avoid flying just in case. You really need to fly and follow the doctor's advice.
The fifth category: patients with severe anemia. The reporter learned from the Department of Hematology of Guangdong Provincial People's Hospital that people with hemoglobin level below 60 g/L should not fly. Some of these patients are due to nutritional reasons, some are due to chronic hemorrhagic diseases, and some are leukemia patients. They are so weak that it is inconvenient to walk on the ground, let alone fly at high altitude. Because of the special environment at high altitude, people with severe anemia are obviously lower than ordinary people because of some functions of ischemic body, which is very unsuitable for flying. If you really need to fly, you must follow the doctor's advice and make necessary preparations.
Sixth category: mental patients, such as epilepsy and various mental patients (especially those with obvious aggressive behavior). Dr. Wang Lijuan, director of the Department of Neurology, Guangdong Provincial People's Hospital, pointed out that such patients are prone to acute attacks of diseases due to aviation atmosphere, resulting in harmful consequences. Patients are also prone to cramps, which is one of the reasons why they are not suitable for flying. If you need to fly, you must abide by the regulations and doctor's advice of the airline and be accompanied by medical staff.
The seventh category: some diseases that need emergency medical treatment, and there is no doctor qualification certificate and medical care before boarding the plane. There are many kinds of these situations, such as shock, coma and increased intracranial pressure in the state of rescue; Craniocerebral injury, skull fracture's coma or irregular breathing rhythm, brain inflammation, tumor, etc. In addition, people who are poisoned by alcohol or narcotics and other drugs; Patients with massive hemoptysis, vomiting blood, bleeding and groaning are also cases that need emergency medical treatment. If these patients need emergency medical treatment, if they want to fly, they should be very cautious. They must be properly handled and approved by the doctor before flying.