dos, and this may be related to the physiologic characteristics of children. Due to limited myocardial contractility in children, cardiac output depends mainly on heart rate. When the heart rate slows in children, cardiac output will obviously be reduced, and cerebral perfusion will also decrease. However, in the course of this study, atropine was given when the heart rate decreased due to myocardial depression caused by anesthetic drugs, and slowing of heart rate due to insufficient blood volume was correctable in a timely manner by rapid fluid infusion. As such, patient heart rate was maintained above and below the basic values by about 15%. The effect of surgery on heart rate is transient, and this did not cause a change in cerebral oxygen saturation, and there was therefore no correlation of heart rate with decrease in rScO2. It has been reported that the intraoperative PetCO2 level is a factor which affects rScO2 . A 5–6% increase in rScO2 was observed at PetCO2 40–45 mmHg as compared with patient PetCO2 of 30–35 mmHg . This is related to the characteristics of cerebral vessels. If the level of CO2 is low, the cerebral vessels will contract and cerebral perfusion will be reduced. Conversely, when CO2 is high, cerebral perfusion improves and rScO2 can be maintained at a high level. In this study, PetCO2 remained in a stable state (35–45 mmHg), so there was no correlation in the decrease in rScO2 and PetCO2 during surgery. Similarly, there was no correlation in SpO2 and rScO2 reduction in the study period.
There are numerous limits within our research. Very first, this study don’t become familiar with if or not there clearly was hypoxic burns off for the diligent body organs aside from your head. Second, postoperative pursue-to next analyze if or not intraoperative decrease of mental oxygen saturation causes postoperative neurological complications was not accomplished.
Results
To close out, intraoperative emotional oxygen saturation monitoring also have effective 
information to make certain the safety out-of surgery and you will anesthesia, and offer a research to own water resuscitation. In this research osteotomy into the modification from customers that have idiopathic scoliosis resulted in the increased loss of hemoglobin, reduced amount of hypertension and you will reduction of cerebral fresh air saturation. Lower than instance points, transfusion and you can liquid infusion might be carried out in a quick trend through the surgery, and you will car transfusion can be wishing in advance. This may yield improvement in the patient clean air likewise have, and sustain a balance ranging from head outdoors have and you may oxygen request. Talking about all-important methods which can be employed to clean out postoperative challenge.
Availability of study and you will product
Utilising the FORE-SIGHT® MC-2030C NIRS display screen (NIRS, CASMED, USA) towards the medium alarm (source-sensor breakup twelve mm and you may 40 mm) was basically apply the newest temple bilaterally and you can modified because the needed seriously to receive uniform indication. The detector of your own Fore-vision display screen try linked to the kid’s bilateral brow arch 1
Results
Maintenance of blood volume is more important in children as compared with adults, and with equivalent amounts of bleeding, changes in the circulation system in children are more obvious. Therefore, after the patient enters the operating room, balanced salt solution should be actively used to supplement physiologic requirements together with the fluid loss caused by preoperative dietary restrictions . When the patient’s blood volume decreases, auto transfusion should be carried out in a timely manner. If the patient’s circulation fluctuates ount of colloidal solution can be used as a supplement at 5–10 mL/kg . At the same time, transfusion of a red blood cell suspension to improve the hemoglobin concentration, and reduce the influence of hemoglobin loss and hemodilution on the oxygen supply to organs should be carried out according to the patient hemoglobin level. In addition, fresh frozen plasma may be infused according to the patient’s coagulation status [11, 15]. When the hemoglobin concentration is low, the oxygen content is insufficient to meet the oxygen consumption requirements of the brain. At this time, the infusion of concentrated red blood cells can significantly improve the rScO2 level in children. Hemoglobin can transport oxygen to various tissues and organs of the body and improve the oxygen carrying capacity of the blood. In scoliosis correction surgery, when the child’s rScO2 decreases, in addition to the decrease in cerebral perfusion pressure caused by the decrease in mean arterial pressure, consideration should also be given to whether the child has anemia, a low hemoglobin level, and low oxygen content per unit blood volume. The brain oxygen consumption is greater than the oxygen supply, and the decrease in rScO2 caused by the reduced oxygen carrying capacity of hemoglobin may even occur before the blood pressure drops. Therefore, blood gas analysis should be performed in a timely manner, and the appropriate infusion of concentrated red blood cells is essential to improve the blood circulation status in children.
