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Yan Xin Liang
Pediatrics
About me
Graduated from Nanhua University, engaged in pediatric work for over 10 years, and have further studied at Hunan Children's Hospital, Xiangya Hospital, and Beijing Children's Hospital.
Proficient in diseases
Diagnosis and treatment of common diseases in pediatric internal medicine, especially skilled in the diagnosis and treatment of pediatric respiratory system and neurological diseases, such as pediatric convulsions, epilepsy, asthma, and lung infections...
Voices
What is adenoid hypertrophy in children?
The adenoid, also known as the pharyngeal tonsil or lymphoid tissue, is located at the top of the nasopharynx and the posterior pharyngeal wall. It looks like an orange segment and is most active in growth from ages 2 to 6 in children, gradually atrophying after age 10. Due to repetitive inflammation, the adenoid can undergo pathological hyperplasia, known as adenoid hypertrophy, which can cause clinical symptoms such as nasal congestion and mouth breathing. The main cause of adenoid hypertrophy is inflammation in the nasopharyngeal region or the adenoid itself. Repeated stimulation leads to pathological hyperplasia. Common causes include recurrent acute and chronic nasopharyngitis, various acute infectious diseases in childhood, which exacerbate nasal congestion symptoms, obstruct nasal drainage, and nasal and sinus secretions further stimulate the adenoid, causing it to continue to grow and creating a vicious cycle.
What should I do if my baby has bronchitis?
Bronchiolitis in babies is an inflammation, which may be caused by infections such as bacteria, viruses, or mycoplasma. The primary treatment is anti-infection, for which antibiotics like oral cephalosporins or penicillin can be chosen for the treatment. Additionally, treatment includes expectorants and cough suppressants, where one or two types of traditional Chinese or Western medicine can be used orally. If the coughing is frequent, nebulized inhalation can be administered to achieve local anti-inflammatory, expectorant, and cough suppressant effects. While treating, it's important to observe the effects and administer intravenous infusions if necessary.
What to eat for a child with a cold?
If a child's cold is considered to be caused by a viral infection, it is important to monitor the baby's temperature and mental response, among other factors. If the child does not have a fever, or only has a low fever and is in good spirits, simply monitoring the baby’s condition and ensuring they drink plenty of warm water and eat light, easily digestible foods is sufficient, with no other special requirements needed. However, some colds, such as those with persistent high fever, lethargy, and poor responsiveness, are more serious and require immediate attention. It is crucial to visit the hospital for further diagnosis and treatment in these cases. Sometimes, the impact of a cold should not be underestimated, as diseases like myocarditis and intracranial infections can initially be triggered by a cold. Therefore, a comprehensive analysis is necessary to make a judgement, and treatment should proceed under the guidance of a doctor.
Full moon baby colic symptoms
Infant colic is the most common cause of abdominal pain in infants. It generally occurs most frequently in babies under three months old and is a common reason why babies cry and fuss, especially during the first month. Typically, babies suddenly start crying and becoming restless at night. This fussing is not directly related to hunger or illness and it's often difficult to soothe them. Sometimes, the baby's legs may contract, and the abdomen may also show contractions, along with symptoms of abdominal bloating. Gently massaging the baby's abdomen, particularly in a clockwise direction, can possibly alleviate the symptoms of abdominal pain.
What should be done about children's adenoid hypertrophy?
In the case of adenoid hypertrophy in children, the first step is to assess the severity of the enlargement. If the adenoids are enlarged to the third degree, affecting breathing, especially with noticeable snoring after falling asleep at night, or symptoms such as frequent waking due to choking and hypoxia, surgery is generally recommended. This involves going to an otolaryngology department to surgically remove the enlarged adenoids. If the enlargement is only at the first degree or between the first and second degrees, and not very severe, local anti-inflammatory and swelling-reducing medications can be used for treatment.
Late-stage symptoms of hand, foot, and mouth disease
Hand, foot, and mouth disease is an acute infectious disease caused by enterovirus infection. Generally, there are more than twenty types of enteroviruses that cause hand, foot, and mouth disease, but the most common are Coxsackie virus A16 and enterovirus 71. The initial symptoms of hand, foot, and mouth disease are blisters in the hands, feet, and mouth; some cases include fever, while others do not. In later stages, the disease may exhibit recurring fevers, and the blisters on the mouth, hands, feet, and buttocks may burst and crust over. After crusting, the blisters gradually heal, but in some cases, the disease can progress to severe cases. For instance, complications such as encephalitis, brainstem encephalitis, myocarditis can occur, and some cases may develop neurogenic pulmonary edema, pulmonary hemorrhage, and circulatory failure, among others. However, such severe cases are generally rare.
Is congenital heart disease heart cancer?
Congenital heart disease primarily refers to the abnormal development of the heart and blood vessels during the fetal period, leading to cardiovascular malformations. It is the most common type of heart disease in children, with an incidence rate of about 6-8 per 1,000 live births. Generally, congenital heart disease refers to malformations during the development of the fetal heart. The exact causes of this condition are still not completely understood. However, actively preventing viral infectious diseases in the early stages of pregnancy and avoiding certain high-risk factors associated with the disease play a significant role in preventing congenital heart disease in children. It should be noted that congenital heart disease represents malformations in the development of the heart and is not a form of heart cancer, hence there is no terminology that describes it as such.
Phenylketonuria is a disease.
Phenylketonuria is an autosomal recessive genetic disorder resulting from mutations in the phenylalanine hydroxylase gene, leading to reduced enzyme activity and the accumulation of phenylalanine and its metabolic products in the body, thereby causing this disease. Phenylketonuria is the most common congenital amino acid metabolic disorder, clinically characterized by intellectual developmental delays, light skin and hair pigmentation, and a mouse-like urine odor. The incidence of the disease varies by race and region, with an incidence rate in China of about 1 in 11,000. Phenylalanine is an essential amino acid for the human body, but due to reduced activity of phenylalanine hydroxylase, phenylalanine cannot be converted into tyrosine, leading to extremely high concentrations of phenylalanine in the blood, cerebrospinal fluid, and tissues. Abnormal metabolism produces a large amount of phenylpyruvic acid, phenylacetic acid, phenyllactic acid, and p-hydroxyphenylacetic acid, along with high concentrations of phenylalanine and its metabolic products, causing brain damage and corresponding symptoms.
Symptoms of Mycoplasma Infection in Children
The symptoms of mycoplasma infection in children primarily include respiratory infections, with common symptoms being cough and fever. Additionally, mycoplasma can cause wheezing and shortness of breath. Generally, mycoplasma can lead to pharyngitis, bronchitis, and pneumonia. In cases of pneumonia caused by mycoplasma, it can affect the bronchial mucosa and the pulmonary interstitial. It can also cause pulmonary consolidation. The main treatment for mycoplasma pneumonia is the use of macrolide antibiotics to treat the infection, followed by symptomatic treatment, expectorants, and cough suppressants.
Why does rickets cause excessive sweating?
Rickets, also known as Vitamin D deficiency rickets, is a chronic systemic nutritional disease characterized by bone lesions caused by insufficient Vitamin D in infants, children, or adolescents, leading to disturbances in calcium and phosphorus metabolism. The main features of this disease are incomplete calcification of the long bone epiphyses, cartilage plates, and bone tissue due to Vitamin D deficiency, resulting in incomplete osteogenic calcification. This disease is generally seen in infants under two years of age, particularly common in infants aged 3-18 months. Due to the lack of Vitamin D, the disease can present symptoms such as excessive night sweating, irritability, restlessness, crying, and cradle cap. Therefore, the excessive sweating associated with this disease is mainly caused by a deficiency in Vitamin D.