Objective To evaluate the efficacy of in-situ split liver transplantation (ISSLT) in children.Methods From June 2015 to August 2018,10 liver grafts from DBD were split in-situ.All the donors were male,and the median age of the donors was 28.5 year old (18-48 year).One left half graft and 9 left lateral lobe grafts (including 2 reduced size grafts) were transplanted to 10 pediatric recipients.Four grafts were transplanted in our center,and the rest 6 grafts were shared to other two transplant center.The primary diseases of the recipients included biliary atresia (8/10),hepatic sinus obstruction syndrome (1/10) and Alagille syndrome (1/10).The median age of the recipients was 10 month (7 month-11 year),and the mean body weight was 9.8 ± 6.6 kg (5-28 kg).Results All liver grafts were split in-situ.The mean split time of liver grafts was 88.5 ± 18.9 min.The mean weight of split grafts was 336.7-± 85.4 g.All recipients were subjected to piggyback liver transplantation.Operation time was 542.5 ± 112.1 min.Anhepatic time was 52.0 ±-13.5 min.GRWR was (3.98 ±0.96)％.GRWR of two cases was more than 5％,so segment Ⅲ was partially reduced.During the follow-up period,9 cases were alive and 1 case died due to multiple organ failure 1 day after liver transplantation.Conclusions ISSLT can enlarge the graft pool for children and achieve good results.

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.

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.