Hi~~~ Hello everyone! Time flies, it’s 2016! New year, new weather! Dr. Lee is working hard, and he’s back to popularizing for the patients! I’m a mystery guest and I’m going to meet you all today, I’m so nervous, guess who I am? I’m a mystery guest and I’m going to meet you all today. Of course, more often than not, I am also extremely honored, because through my identification, the doctors will know whether the patients still have a chance to operate, and the doctors will also decide on the surgical strategy based on my results, haha this time I look very proud! In the clinical practice of cardiac surgeons, they found that I have an irreplaceable role in the examination of complex precordial diseases because of the accuracy of the display and the comprehensiveness of the data! I was able to provide a comprehensive and accurate evaluation of precordial disease, thus providing comprehensive data support for clinical treatment, resulting in a better prognosis for the child, avoiding many unnecessary losses, and also fighting for the opportunity to operate for many complicated surgeries that were said to be inconsistent, saving many lives and saving many unfortunate families. I am the famous cardiac catheterization and/or cardiovascular angiography. Congenital heart disease has always been a cloud on the minds of many parents. It is a cardiovascular malformation caused by abnormal development of the heart vessels during fetal life and is the most common heart disease in children. Its incidence accounts for about 0.8% of births, of which 60% of complex congenital heart disease die before the age of 1 year. Generally speaking, electrocardiogram, cardiac X-ray and cardiac ultrasound are the three basic tests for precardiac disease, which are non-invasive and can meet the requirements of diagnosis and treatment for most of the simple precardiac diseases and some complex precardiac diseases. However, there are also some precordial diseases that require further me in addition to the above mentioned tests in order to fully assess the anatomy and hemodynamics of the heart and provide a basis for the development of a treatment plan. Therefore, I is the most important diagnostic method for physicians and specialists to diagnose precocious heart disease, especially severe and complicated type of precocious heart disease. Cyanotic precocious heart disease and precocious heart disease with pulmonary hypertension must be clarified through me whether there is an indication for surgery and the method that surgery should take. Look how important my mission is, so I am proud! Like all tests, I have a range of indications, and I am very strict! If you have the following conditions, you will need my help! 1. severe pulmonary hypertension combined with shunted preconditioning; 2. preconditioning with pulmonary stenosis or dysplasia; 3. preconditioning with complex cardiac anomalies; 4. hemodynamic evaluation. Sometimes there are conditions that are not visible on cardiac ultrasound, and it’s up to the doctors to find these hidden problems! Complex precardiac disease is often multiple, predominantly one type, with other malformations, and treatment without a clear diagnosis can lead to missed diagnosis and treatment in mild cases and life-threatening cases. For example, arteriovenous catheterization is often accompanied by narrowing or dissection of the aortic arch. If the arteriovenous catheter is ligated, blood flow cannot enter the descending aorta, which can lead to lower body ischemia and death from acute renal failure. Dr. Li encountered one such case where ultrasonography did not reveal aortic constriction, but a cardiogram clearly showed an unclosed arterial duct and descending aortic stenosis, so that Dr. Li corrected the unclosed arterial duct and narrowed arch before correcting other malformations of the heart, saving a life. See, I get a lot of credit for that! I also have a role to play in avoiding unnecessary surgery: some children with mild precordial symptoms have a defect that must be treated on ultrasound, but the defect is found to be small on imaging, with minimal fractional flow, so surgery is unnecessary, avoiding physical trauma and financial loss. Such problems are often found in the interventional blocking treatment by doctors, why? The reason is that Doppler ultrasound measurement of blood flow has colored spillover, and the measurement data is large and the results are inaccurate. This “no need for surgery” news is not a drunken message to the parents! But I can’t help you if you have these conditions! 1. Respiratory infections, body temperature of 38 ℃ or more to avoid this test (I can help you after the cold!) 2. a history of allergies, bleeding disorders, avoid this test (do not worry about this situation, doctors are very wise, will find another way to drop.) Well, after all this, do you want to know how I work, then I will give you a brief: heart catheter placed in the blood vessels to measure pressure I. Cardiac catheterization (as shown above): Cardiac catheterization is a certain toughness of the impermeable X-ray plastic catheter, from the peripheral vessels to the heart and the designated part of the large vessels, according to its travel path, pressure, blood oxygen content to analyze the pressure curve waveform, calculate It is an important examination method for diagnosis based on its travel path, pressure, and blood oxygen content to analyze the pressure curve waveform and calculate various parameters. There are two types of catheterization: right heart and left heart. Right heart catheterization is performed by percutaneous puncture of the femoral vein and delivery of a cardiac catheter through the inferior vena cava to the right atrium, right ventricle, and pulmonary artery. Left heart catheterization involves percutaneous puncture of the femoral artery and retrograde catheterization through the descending aorta to the left ventricle. The role of cardiac catheterization is that right heart catheterization is useful to understand the right side of the heart, whether there are abnormal channels and pressure and other cardiac hemodynamic changes, but it does not directly reflect the left heart pathology. Likewise, left heart catheterization is useful to understand hemodynamic changes in the left atrium, left ventricle, and aortic pressure. In conclusion, cardiac catheterization can help to clarify the diagnosis of congenital heart disease and provide accurate hemodynamic information. Especially for pulmonary hypertension due to congenital heart disease, cardiac catheterization is an essential part of the procedure, and many patients with pulmonary hypertension have been able to regain their lives from death by having surgical radical treatment through this test, which clearly has surgical pointers. In recent years, endomyocardial myocardial biopsy can also be performed through cardiac catheterization, installation of temporary or permanent pacemakers for the heart, etc. Interventional therapy for certain congenital heart diseases has been carried out, which means that cardiac catheterization is used to achieve the purpose of treating congenital heart disease, which is a non-open-heart correction of congenital heart disease, opening up new ways for the diagnosis and treatment of congenital heart disease. Cardiac angiography shows huge ventricular septal defect and pulmonary atresia. Cardiovascular angiography (shown above): This test is performed with the aid of a cardiac catheter (usually replaced with a contrast catheter after cardiac catheterization) to inject contrast directly and rapidly into a selected part of the heart or large blood vessels for cine photography. It can also reflect the functional status of the heart, thus greatly improving the diagnosis of congenital heart disease, especially complex congenital heart disease, and providing a reliable basis for surgical correction of malformations. The heart is a very important part of the heart. Cardiac angiography is relatively more demanding than cardiac catheterization and may become a routine preoperative test in the near future, providing more accurate and detailed reference data for surgeons to develop surgical plans. As cardiovascular system diseases seriously affect the health and even the life of children, the quality of life of the children is greatly reduced. As parents, they should fully understand that for children with serious and complex precardial diseases, doctors can only perform invasive cardiac catheterization or cardiovascular angiography to make an accurate diagnosis and decide on a strategy for surgical cure, so that the children can be healthy again. So, if you hear doctors say that they want me to come out and help you, don’t be afraid to worry and don’t struggle, all doctors will do their best to help you and save lives just like me! Well, that’s all for today, everyone, see you next time! This article is published with the authorization of Dr. Li Pingyuan, please do not reproduce without authorization.