"And this disease?" Lu Gang muttered.

Because what Lin Jiu said was extremely formal, the cases he took out were still people with names and surnames, and it didn't seem like he was lying, so Lu Gang believed it at once.

"Dr. Chen Pengsheng is the editor-in-chief of the journal International Cardiac Rhythm, and the article was published in the journal, so if Director Lu is interested, you can look for it."

There are many diseases characterized by "orthostatic intolerance", such as vasovagal syncope and orthostatic hypotension in addition to postural orthostatic tachycardia syndrome. ”

"What is the impact factor of the International Journal of Heart Rhythm?" Xu Leyu suddenly asked.

"5 or so, small magazine." Lin Jiu said.

“……”

“……”

Xu Leyu and Lu Gang were both dumbfounded by Lin Jiuze's Versailles.

Are SCI journals with an impact factor of 5 or higher all small magazines?!

According to a 2019 review in the American Journal of Cardiology, orthostatic tachycardia syndrome is the most common "orthostatic intolerance" in young adults, mostly in women aged 15-50 years.

Typical symptoms include lightheadedness, fainting, problems with thinking, memory, and concentration, palpitations, tremors, and sweating, feeling weak and tired, tiredness, headache, poor sleep, chest pain, nausea, and shortness of breath. ”

"It's the 'lazy disease' you just mentioned, Director Lu."

Lin Jiu didn't know why he had changed his previous gentleness, and he didn't forget to taunt Lu Gang as he spoke.

Lu Gang didn't seem to hear, he was pondering.

"There are data showing that 1 in 500 Brits suffers from some form of orthostatic tachycardia syndrome. It is common in the United States or more commonly, with 1 in 100 people. I feel that whether or not we can get a correct diagnosis depends on the level of the local doctors. ”

"The level of medical care in the United States is very high, so one out of 100 people is diagnosed."

Today's Lin Jiu is different from usual, his sharpness is exposed, as if Lu Gang is possessed, and every word is full of thorns.

"Is there really this disease?!" Zhao Zhe said to himself.

"The disease has a long history, with records dating back to 1871. Originally, it was called "Irritable Heart" or "Soldier's Heart". Later, in 1944, it was officially named postural orthostatic tachycardia syndrome. ”

"But why, gravity allergy, as soon as I stand up, I feel uncomfortable, this is ......" Zhao Zhe didn't care about Lin Jiuze's ridicule at all, he didn't understand and asked, "Doctor Lin, there must be at least thousands of acquaintances around me, and so far I haven't found a single patient with a similar situation." ”

"The patient's condition ranges from mild to severe." Lin Jiu smiled slightly, "Many patients feel uncomfortable after getting up, but they don't realize that there is something wrong with their body at all, and it is good to move." ”

"What about the causative mechanism?" Lu Gang asked.

"The NHS Explanation of the Disease states that the disease is the result of a combination of mechanisms.

In the supine position, about 1/4 of the blood in the body is concentrated in the chest.

If you quickly change to an upright position, gravity will shift the blood downward, and about 500-1000 mL of blood will flow to the abdomen, pelvis, and lower extremities after a few seconds of standing upright.

This transient change may lead to a decrease in venous return to the heart, a decrease in stroke volume, and an increase in sympathetic reactivity.

The autonomic nervous system works to maintain normal blood flow by slightly increasing the heartbeat.

For normal people, the above process is unconscious, and the body usually does it on its own within 1 minute.

However, in people with orthostatic tachycardia syndrome, this response cannot be triggered correctly. The heart even "races" to compensate for changes in blood flow.

Patients with orthostatic tachycardia syndrome encountered in clinical practice are ......"

Lin Jiu began to talk about the problem of orthostatic tachycardia syndrome, he walked to the blackboard naturally, and began to write a board book on the blackboard with a marker, as if he was lecturing.

Zhao Zhe glanced at it a few times, and could only see the marker walking around "himself", like a haunting.

It's amazing!

Zhao Zhe was also very helpless.

However, what Lin Jiu said may be a little difficult, it is all purely theoretical, but "gravity allergy" is too strange, Zhao Zhe, Xu Leyu, and Lu Gang listened to it with relish.

The article "New Advances in the Treatment of Postural Orthostatic Tachycardia Syndrome" has a similar description - exercise can activate the skeletal muscle pump, increase blood pressure, and also have a good therapeutic effect on severe patients.

3 times a week, 20-30 minutes of aerobic exercise + lower limb and abdominal resistance training, semi-recumbent position such as swimming, rowing and other exercises are recommended.

For teenagers, standing against the wall for 30 minutes a day, once in the morning and once in the evening, is also effective. If there are presyncope symptoms during training, such as dizziness, blackouts, paleness, nausea and vomiting, sweating, etc., you should immediately take a supine or sitting position, or elevate your thighs to relieve the symptoms. ”

"After a period of exercise, the symptoms are relieved."

"It's not like a leash smoking." Zhao Zhe whispered.

The marker pen in Lin Jiuze's hand smashed at Zhao Zhe with a "brush", and Ji Xiang reached out to catch it.

"Dr. Lin, don't make trouble."

"......" Lin Jiu was in a trance for a moment, and finally sighed.

This is not Massachusetts, and I am not facing Harvard Medical School students, and there is such a demon as Ji Xiang.

Facing Ji Xiang, Lin Jiu knew that he was at a disadvantage.

"That's probably it, a slap on a leash will solve the problem, forcing the child to get up and move, and use it to fight the disease. But there are still certain risks, and I recommend a systematic and theoretical ......"

Lin Jiu began to speak at length again.

He spoke as if the dean was giving a report, and I could speak for an hour or two at the end.

His words are completely different from Zhao Zhe's.

Lu was still a little reluctant at first, but Lin Jiu talked about it later, and he had already started to take notes.

Half an hour later.

Lin Jiu put the marker pen on it.

"That's all for today."

Zhao Zhe looked at the blackboard quietly, looking at a lot of things written on it, and he felt like he was back at school.

Lin Jiu glanced at Ji Xiang, Ji Xiang bowed slightly, and Lin Jiu was relieved.

He was really worried that Ji Xiang would speak out against it.

Lin Jiu's research on orthostatic tachycardia syndrome has been very thorough, after all, he is in the Massachusetts General Hospital, and the relevant theoretical research has been carried out for an unknown number of years.

In the face of a hospital of this level in the Second Affiliated Hospital, he almost fell into a dimensionality reduction attack.

can face Ji Xiang, and the object of dimensionality reduction is the opposite.

Lin Jiu was always apprehensive, for fear that Ji Xiang would smile, and then stand up and say some cutting-edge knowledge, directly overturning all the theories he mastered.

After Lu Gang finished recording, he suddenly slapped his thigh, "Oh,, I forgot, I have to go to the patient quickly!" I'm still waiting for my consultation! ”

(End of chapter)