ABSTRACT
Objective To evaluate the correlations between arterial partial pressure of oxygen (PaO2), arterial partial pressure of carbon dioxide (PaCO2) and age in the population of Han nationality aged over 15 years old. Methods Three hundred Chinese Han nationality patients who underwent elective surgery were selected. They were involved in ASA class Ⅰ-Ⅲ, including 162 male and 138 female. Radial artery or dorsalis pedis artery was punctured, performed indwelling catheter, and connected the pressure transducer under local anesthesia. Blood gas analysis was collected before anesthesia. Results The linear regression trend diagram showed that the level of PaO2 had linear negative correlation with age . The calculating formula was PaO2(mmHg) = 101.7- 0.278 × age (years) (1 mmHg = 0.133 kPa, R2=0.903). The level of PaCO2 didn′t change with age, and average was (38.2 ± 2.8) mmHg. Conclusions The level of PaO2 is gradually decreased with age, but the level of PaCO2 isn′t affected by age.
ABSTRACT
Objective To make a comparison between noninvasive blood pressure (NIBP) and invasive blood pressure (IBP). Method Totally 450 patients undergoing selective surgery received radial artery or dorsalispedis artery puncture and catheter under local anesthesia to figure out the difference between NIBP and IBP. Results The systolic blood pressure difference of IBP from different positions and NIBP were as follows:left radial artery group (18.20 ± 0.67, 15.27 ± 0.62) mmHg, right radial artery group (18.54 ± 0.79, 14.68 ± 0.77) mmHg, left foot dorsal artery group (41.98 ± 2.26, 40.54 ± 1.77) mmHg and right foot dorsal artery group (37.57 ± 0.01, 37.93 ± 2.90) mmHg. The noninvasive systolic blood pressure difference between left and right arms was (2.84 ± 0.45) mmHg, the noninvasive diastolic blood pressure difference (3.19 ± 0.34) mmHg, and the noninvasive mean blood pressure difference (2.85 ± 0.35) mmHg. The NIBP of right arm was higher than that of left arm. Conclusions IBP is higher than NIBP, and the invasive artery systolic blood pressure is about 20mmHg higher than noninvasive systolic blood pressure. Meanwhile we confirm that systolic blood pressure gradually rises over 30 years old, and diastolic blood pressure increases while gradually declines after 50.
ABSTRACT
Objective To design a new type of nasopharyngeal airway tube,which can resolve the upper respiratory tract obstruction due to general anesthesia.Methods All types of used flex endotracheal tube were collected.Take off the cuff outside of the tube wall and cut them into different lengths.Then,the connectors were reinstalled to the prepared tubes.Results With the designed nsopharyngeal airway tubes inserted,50 patients having complicated glossocoma in general anesthesia no longer snored and they could breathe freely.Conclusion The new type of nsopharyngeal airway tube is easy to produce and adapts well to clinical work.
ABSTRACT
Modern excellent anesthesia machine takes part in reducing unexpected anesthesia accidents,but it does not take the place of the shortcomings of anesthetist,therefore anesthetists should know the structure of anesthesia machine and be proficient in operation.The key structure,ordinary hitches and maintenance method for anesthesia machine are introduces.
ABSTRACT
The double-lumen endobronchial tubes are usually applied to the anesthesia of wet lung operation for the isolation of both lungs during anesthesia and one-lung ventilation.Many young physicians of the department and on-the-anesthesia training doctors are very interested in the intubatton.According to the past teaching experiences,some opinions are given in such aspects as the tube standard,pre-checking,estimation of the intubation depth and the significance of monitoring the airway resistance.These basic considerations are always easily overlooked by some young anesthetists.
ABSTRACT
To solve the problem of two separating lobes in a child's pulmonary surgery, this paper introduces the design, manufacture and clinical application of the bronchus blocking tube, which can better ensure patients' safety when anaesthetized.
ABSTRACT
Objective To discuss the application problems of double lumen endobronchial tube. Methods According to the ancient teaching experiences, some overlooked announcements were given that have included tube standard, pre-checking, the application of intubating forceps, the estimation on depth of penetration and the monitoring on arterial partial pressure of oxygen. Results The perioperative security of patients was increased. Conclusion The problems can be observed to help young anesthetist better application of the tube, and has good generalization value.