Where is the pain of bone piercing?

Generally speaking, there is pain when the needle passes through the skin during puncture, which is one. Secondly, the nerves of the bones are mainly distributed on the periosteum. When the needle punctures the periosteum, the patient will inevitably feel pain. In both cases, when the doctor gives the patient local anesthesia, applying local anesthetic to the periosteum can solve these pain problems. The third pain is unsolvable, which is the pain caused by negative pressure when the needle enters the bone marrow cavity. In order to relieve the patient's pain, the doctor needs to pump slowly.

The amount of pumping depends on the specific case. In some cases, one milliliter of the pumping can draw bone marrow, but some are not certain. You don’t need to draw too much for a simple bone marrow smear. If you want to do a genetic cultivation test, you must draw too much, and use a large syringe or even a 20 ml syringe.

The assistant stood opposite the doctor responsible for the puncture, helping to observe the child's condition, helping to make bone marrow smears, etc. The bone marrow smear is drawn out and dripped onto the slide, which is a bit similar to the middle school biology class to make plant leaf slides. For example, this child needs to make more than five slides when he was diagnosed for the first time.

Dr. Tian told the students: "Bone perforation is less risky than other punctures, so there is no need to be nervous."

The teacher can understand this way. Bone marrow is definitely about finding large bones on the body to draw. The target of the bone is large, unlike deep venipuncture surgery that requires deep, thin and slippery blood vessels, which are like blind people touching an elephant. It is difficult and risky to pierce the waist. It has been said before that taking cerebrospinal fluid is not careful and will affect the patient's brain.

If bone piercing is touched through the skin, one needle will be easy to be in place, the probability of error is small, and the risk of complications is also small. Moreover, bone piercing is more targets for doctors. If this bone cannot be touched or cannot be pulled out, you can find another bone to pump it.

Usually in clinical practice, bone penetration can draw the sternum and ilium. The best one is the ilium. The ilium is more likely to draw the bone marrow in the large ilium marrow cavity. Children under six months old have more tibia, and the puncture position of the tibia is relatively safe.

Given that the risk of sternal apnea is high and safety, with such a family member, the doctors have been thinking about it and dare not take the risk of the sternum and directly choose the iliac bone that everyone likes the most. The needle point of the iliac bone can be used to select the anterior superior iliac spine or posterior superior iliac spine.

Zhang Desheng had an internship in the hematology department of the National Association before. He had seen a teacher doing bone puncture and also had a blow to the teacher. For this reason, Teacher Tian was appointed to do puncture. Zhao Zhaowei was appointed as an assistant.

Several surgical students had never been to the Hematology Department of the National Association and were watching. What was special was that Xie was named by the child's family and was standing next to the puncture doctor to help hold the child.

For any puncture operation, it is most important to accurately locate the anatomical position of the puncture target.

Zhang Desheng's fingers wearing sterile gloves touched the child's iliac bone, and asked student Xie with his eyes: Is the position I touched right, Yingying?

As we all know, Xie is a super academic master in anatomical positioning. All the students in the smarter class will seize the opportunity to seize the advice of Xie.
Chapter completed!