Ten-month-old baby's legs are weak and unable to stand

Your ten-month-old baby’s legs are too weak to stand? The child's illness is a little more complicated. It is recommended to check myocardial enzyme spectrum and electromyography. Please see my website: Section 1 Pediatric Neuromuscular Forum (Muscular Dystrophy and Spinal Muscular Atrophy and Myasthenia Gravis and Elevated Creatine Kinase and Genetic Diagnosis and Prenatal Diagnosis and Mitochondrial Myopathy and EMG and Lab Tests and Muscle Biopsy and Inherited Metabolic Diseases etc.

① Common initial symptoms of myasthenia gravis include the following:

1. Weakness in chewing

My teeth are fine, but I don't have the strength to bite things, even steamed buns are difficult. The first few bites were okay, but the more I bit, the harder it became. Eating pancakes and barbecue is even more difficult.

2. Double vision

That is, double vision. If you use both eyes to look at one thing, you will see two; if you cover one eye, you will see only one. Very young children cannot describe their diplopia and often compensate by tilting their head or torticollis in order to make the diplopia disappear and see clearly. In severe cases, strabismus may also occur.

3. General weakness

From the outside they appear to have healthy skin and no muscle atrophy, as if they are not sick; but patients often feel severe general weakness, unable to lift their shoulders or hands, unable to stand up after squatting, and even need help from others to wash their face and comb their hair. The patient's muscle weakness symptoms would improve significantly after a while of rest, but would get significantly worse after doing a little work, as if he was pretending. Most of these patients also have symptoms such as ptosis and diplopia.

4. Drooping eyelids

Also known as droopy eyelids. According to our analysis of 3,100 cases of myasthenia gravis, 73% of them had ptosis as the first symptom. It can occur at any age, but is more common in children. In the early stage, it mostly affects one side, and in the late stage, it mostly affects both sides. In addition, for many patients, when one eyelid bulges, the other eyelid droops, which is a phenomenon of alternating ptosis.

5. Difficulty swallowing

I have no digestive tract diseases and my appetite is good, but I can't swallow delicious food, even water. When drinking water, it either goes into the trachea and causes coughing, or it flows out of the nostrils. Some patients have to rely on nasogastric tubes to eat due to severe dysphagia.

6. Facial muscle weakness

Due to weakness of the facial muscles, patients often cannot close their eyes when sleeping. The expression is usually indifferent and the smile looks unnatural, just like crying, also known as the crying-laughing face. This facial expression makes the person look uncomfortable and the patient appears to be in pain.

7. Nasal voice and hoarseness

It's like having a cold. Some patients' voices are fine for the first few minutes when speaking in a meeting or reading a newspaper, but after a while, their voices become hoarse and low, and finally they can no longer make any sound. When he was on the phone, it was fine at the beginning, but after a while, others couldn't hear what he was saying. This is due to weakness of the throat muscles.

8. Difficulty breathing

This is the most serious symptom of myasthenia gravis, which can kill the patient in a short period of time, so it is also called myasthenia gravis crisis. This is due to severe weakness of the respiratory muscles. The patient found it very difficult to breathe and could not sleep lying down at night and could only breathe while sitting. The inability to cough up phlegm is neither likely to be caused by heart disease, asthma, nor lung tumor. Most patients with this type of breathing difficulty also have difficulty swallowing, limb weakness or drooping eyelids.