Dietotherapy, or dietotherapy for short, is the use of diet to protect health and prevent diseases. As the saying goes, "Food is the most important thing for the people". In order to supplement the energy consumption of human tissues and organs and maintain life activities, people must constantly ingest nutrients. Besides air and sunlight, the most important energy source is diet. The ancients were very particular about diet. Eating it can nourish people and cause diseases. Mastering accurate dietotherapy methods can harmonize qi and blood, enhance body resistance and prevent and treat many diseases. On the contrary, improper diet can cause many diseases, so diet should follow certain principles. Reasonable nutritional supplement, proper diet control and attention to dietary taboos are of great significance for maintaining good health, cooperating with treatment and accelerating the recovery of diseases. Diet conditioning is very important for all patients. For different patients, dietotherapy has the same principles and special requirements. Patients with cor pulmonale should follow the following principles: (1) General principle 1) Diet should be moderate: cor pulmonale has a long course of disease, consumes a lot, and right heart failure causes gastrointestinal congestion, which affects digestion and absorption and leads to loss of appetite. Therefore, we should provide patients with a nutritious and digestible diet, eat more high-quality protein such as milk and eggs, and supplement protein. Pay attention to eat less and eat more meals to ensure nutrient supply and not increase the burden on the stomach. 2) Pay attention to the harmony of the five flavors: there are five flavors in the diet: sour, sweet, bitter, spicy and salty, and different diseases have different taboos on the five flavors. If you have difficulty breathing and cough, you should avoid spicy food; People with cardiac insufficiency should eat a low-salt diet; Patients with hypertension and arteriosclerosis should enter a low-fat diet. Chinese medicine believes that overeating is fat and sweet, which is easy to help dampness, phlegm and heat; Eating too much cold food is easy to damage the yang of the spleen and stomach and make the cold endogenous; Partial eating of spicy and other irritating foods will also cause stomach and intestines to accumulate heat and endogenous heat and toxic evil. Therefore, you must not be partial to food simply according to your personal hobbies. Of course, cooking should also pay attention to the harmony of five flavors to make the food delicious and increase the appetite of patients. 3) Chinese medicine says that diet should adapt to the cold and heat of the disease. Diseases are divided into cold syndrome and heat syndrome, and diet should also correspond to cold and heat. In the remission stage of cor pulmonale, most of them are deficiency-cold syndrome of lung, spleen and kidney yang deficiency, so we should eat warm diet and avoid cold and salty diet; During acute attack, phlegm-heat is evil, so we should avoid spicy, warm, dry and hot products and greasy, sweet and thick products. 4) The diet of patients with cor pulmonale should be light and vegetarian. Chinese medicine has always advocated vegetarian health, and people often say that "fish makes a fire, meat produces phlegm, and vegetables and radishes keep safe." In today's world, most of the health secrets of many long-lived elderly people are mainly vegetarian. Patients with cor pulmonale have poor physical strength, little activity and are prone to constipation. Eating meat is not easy to digest because of digestive dysfunction. Therefore, we should eat more nutritious and digestible foods such as vegetables and fruits. (2) Energy calculation principle: Basic energy and protein requirement of patients with cor pulmonale: The basic requirement of patients (BEE) is usually calculated according to Harris-Pennisette equation in medicine, that is, male: bee: 66+ 13.7× body weight (kg)+5.0 length (cm) -6.8× age (year). Female: bee: 66.5+9.6× body weight (kg)+1.7 body length (cm) -4.7× age (year). Patients with cor pulmonale need to be multiplied by a correction coefficient c (male1.5438+06; Female 1. 19). In order to correct the patient's weight loss, the basic energy demand should be increased by 10%, and if the patient has slight physical activity, it should be increased by 30%. For a malnourished patient with cor pulmonale, the daily heat supply should be = Harris-Pennisette predicted value× correction coefficient c×1.1.3× 4.184. If patients with acute respiratory failure of cor pulmonale are given artificial ventilation, it is necessary to increase the supply of protein by 20% ~ 50% to supplement the extra consumption of protein due to the increase of catabolism. Also pay attention to the proportion of carbohydrates should not be too large: because too much sugar will increase the production of carbon dioxide and increase respiratory work. Respiratory quotient of glucose metabolism (respiratory quotient is the nutritional value calculated by doctors with instruments or related formulas) is 1, which is higher than that of protein and fat. When respiratory quotient > 1, it means that there is fat synthesis. Excessive sugar input can also induce the release of insulin, make glucose and phosphate combine into skeletal muscle and liver, further aggravate hypophosphatemia caused by malnutrition and aggravate the development of respiratory failure. Therefore, at what stage, what food and how much to eat for patients must be under the scientific guidance of medical staff in order to play a real role in nutritional treatment. Protein intake should be appropriate: too much protein will enhance the central ventilation drive and increase the ventilation volume per minute, thus increasing the respiratory load, which is not conducive to the recovery of patients. If the merger. Renal function is impaired, and the supply in protein is relatively reduced. In terms of nutritional proportion, it is best that carbohydrate accounts for 50% ~ 60%, protein accounts for 15% ~ 20%, and fat accounts for 20% ~ 30%. The above are the principles that patients with cor pulmonale should follow in nutritional treatment. Specific recipes should be formulated according to personal tastes, and the nutrients contained in food should be reasonable.