1.Effects of different methods of volume therapy on inflammatory response in patients undergoing liver cancer resection
Chao LI ; Yong WANG ; Ruiqin LI ; Hemei WANG ; Huiqun JIA
Chinese Journal of Anesthesiology 2012;32(4):477-480
Objective To investigate the effects of different methods of volume therapy on the inflammatory response in patients undergoing liver cancer resection.Methods Forty ASA Ⅰ or Ⅱ patients,aged 40-60 yr,with body mass index 20-25 kg/m2,undergoing liver cancer resection,were randomly divided into 2 groups ( n =20 each):routine fluid replacement group (group Ⅰ ) and goal-directed fluid replacement group (group Ⅱ ).The fluid replacement regime in group Ⅰ =compensatory volume expansion (CVE) + physiological requirements + cumulative loss + confinued loss + the third space losses.CVE was replaced with lactated Ringer's (LR) solution 5 mg/kg before anesthesia induction.The physiological requirements and cumulative loss were replaced with LR solution according to the principle of 4-2-1.The continued loss equal to the intraoperative blood loss was replaced with the equal volume of 6% hydroxyethyl s tarch ( HES 130/0.4).The 3rd space losses were replaced with LR solution 5 ml·kg-1 ·h-1.In group Ⅱ,CVE was replaced with LR sol6ution as in group Ⅰ.LR solution was infused after anesthesia induction at 5 ml·kg-1 ·h-1.6% HES was infused to maintain left ventricular ejection time (LVETc) between 350-400 ms.When 350 ms < LVETc < 400 ms and the amplitude of stroke volume ( SV ) increased by > 10%,6% HES was infused continuously until the amplitude of SV increased by ≤ 10%.Blood samples were taken before anesthesia induction and at the end of operation for measurement of serum TNF-α,IL-2,IL-4,IL-6 and IL-8 concentrations.The adverse cardiovascular reactions were recorded.Results Compared with group Ⅰ,the serum TNF-α,IL-6,IL-8 concentrations were significantly decreased,the serum IL-2 and IL-4 concentrations were significantly increase,and the incidence of hypotension and tachycardia was significantly decreased in group Ⅱ ( P < 0.05).No adverse cardiovascular reactions were found in both groups.Conclusion LVETc and SV-guided volume therapy can maintain the blood volume and inhibit the inflammatory response and is suitable for the patients undergoing liver cancer resection.
5.Protective effects of different modes of ventilation on lungs on operated side during one-lung ventilation in patients undergoing thoracic surgery
Hemei WANG ; Caijuan ZHANG ; Fangfang YONG ; Chao LI ; Huiqun JIA
Chinese Journal of Anesthesiology 2014;(3):300-303
Objective To evaluate the protective effects of different modes of ventilation on the lungs on the operated side during one-lung ventilation (OLV ) in patients undergoing thoracic surgery .Methods Forty-five ASA physical status Ⅰ or Ⅱ patients of both sexes ,aged 45-64 yr ,weighing 65-80 kg ,were randomly divided into 3 groups (n=15 each) using a random number table :group A ,group B and group C .After induction of anesthesia ,the patients were intubated with double-lumen tube and OLV was performed .During OLV ,the lung on the operated side was collapsed naturally in group A ,positive pressure ventilation (FGF 2 L/min) was applied in the lung on the operated side in group B ,and high-frequency jet ventilation (frequency 100 beats/min ,driving pressure 0.5 kg/cm2 ) was used in the lung on the operated side in group C .Immediately after intubation (T0 ) , and at 1.5 h (T1 ) and 2 h (T2 ) of OLV ,blood samples were taken from the central vein and radial artery for determination of the serum interleukin-6 (IL-6 ) and IL-8 concentrations .The net release of IL-6 and IL-8 was calculated .Blood samples were taken from the radial artery at T0-2 for blood gas analysis and for determination of surfactant protein A (SP-A) concentration in the serum .Respiratory index (RI) was calculated .The non-cancer tissues 1.0 cm × 1.0 cm × 1.0 cm which were extracted from the lung cancer specimens were used for microscopic examination of the pathological changes of lungs which were scored .Results Compared with group A ,the net release of IL-6 and IL-8 ,serum SP-A concentration ,RI and pathological scores were significantly decreased at T1 ,2 in B and C groups ( P<0.05) .Compared with group B ,the serum SP-A concentration and RI were significantly decreased at T1 ,2 , and the net release of IL-6 was increased at T2 in group C ( P< 0.05 ) .Conclusion Continuous positive ventilation and high-frequency jet ventilation both can effectively protect the lungs on the operated side during OLV in patients undergoing thoracic surgery ,and the efficacy of high-frequency jet ventilation is better .
6.Research Progress of Three-dimensional Fluorescence Coupled with Chemical Multiway Calibration
Hailong WU ; Yong LI ; Chao KANG ; Ruqin YU
Chinese Journal of Analytical Chemistry 2015;(11):1629-1637
Fluorescent technology is widely used in many fields due to its high sensitivity. However, the direct quantification of one target analyte in complex system is still difficult to be achieved when using the traditional fluorescent method without any pretreatment separation procedure. This is due to the fact that serious overlapping of fluorescence spectra often occurs, mainly originating from natural interferences in complex sample backgrounds, or the interferents with similar structures to a target analyte, particularly in the simultaneous analysis of multi-components samples. The rapid development of modern analytical instruments and three-way data collection techniques has led to a resurgence of interest in the development of chemomet-rics-based analytical strategies, which might light a new avenue to simple experimentation using“mathematical separation” as a replacement or enhancement of“physical or chemical separation” of uncalibrated background or interferents. These methods can offer a highly attractive property, called“second-order advantage”, which allows for the direct and rapid determination of a single target component or simultaneous determination of multiple target components in complex samples, even in the presence of uncalibrated interferences. The property has been a hotspot in the current chemometric domain, and was successfully employed for many applications, such as pharmaceuticals, biological, food, environmental analysis and so on.
8.Application of the theory of planned behavior in education about cervical spondylosis
Guiyun YANG ; Chao ZHENG ; Yong CHEN ; Zhihong WANG ; Teng LI
Chinese Journal of Physical Medicine and Rehabilitation 2015;37(11):857-860
Objective To observe the influence of the theory of planned behavior (TPB) in teaching patients with cervical spondylosis about their disease.Methods A hundred cervical spondylosis patients were assigned according to their admission order into an experimental or a control group.The control group received conventional health education and health education materials, including oral health education.With the intervention group,the TPB was used to design their nursing, and they received behavioral intervention addressing attitude, subjective norms and behavior control.Both groups were assessed for the degree of pain using a six-point pain score, health behavior, and recurrence, before the experiment and after 6 months.Results After six months both groups had significantly improved pain scores, but the average improvement in the intervention group was significantly greater.Their health behavior was also significantly better except for the prevention of pharyngeal infection and keeping warm.Conclusions The TPB can significantly relieve the pain and improve the health behavior of spondylosis patients, and reduce the recurrence rate.
9.Effect of continuous low-dose infusion of adenosine into hepatic artery on hepatic arterial flow of liver graft
Libin YAO ; Yong SHAO ; Xiaocheng ZHU ; Chao LI
Chinese Journal of Hepatobiliary Surgery 2016;22(11):749-752
Objective To assess the effect of continuous low-dose infusion of adenosine on hepatic arterial flow (HAF) of patients with liver graft during surgery.Methods From Jan 2009 to Aug 2009,44 patients underwent orthotopic liver transplantation (OLT).10 patients were enrolled to receive adenosine treatment and 34 patients served as controls.Following arterial reperfusion,a 16G central venous catheter was placed into the gastroduodenal artery and adenosine was continuously infused at doses ranging from 0.7 to 4.2 μg · kg-1 · min-1 for 30 min.HAF and portal vein flow (PVF) were measured using a real-time time flow meter prior to,during and 10 min after adenosine infusion.Data on gender,age,postoperative hospital stay,ICU stay,hepatic biochemical indicators and 1-year survival rate were compared between the two groups.Results Adenosine significantly increased HAF at doses from 1.4 to 2.8 μg · kg-1 · min-1 Doses >2.8 μg · kg-1 · min-1 did not further increase HAF.HAF increased by 150.3% ± 161.2% (P <0.05) while PVF showed no significant changes (P > 0.05) during adenosine infusion.No significant differences were found on MAP [(85.6 ± 13.0) vs 84.0 ± 13.6,P >0.05] and HR [(74.5 ± 10.0) vs (74.1 ± 9.6),P > 0.05] before and after adenosine infusion.In addition,there were no significant differences between the adenosine group and the control group on patients' gender,age,postoperative hospital stay,ICU stay,hepatic biochemical indicators and 1-year survival rate.Conclusion This pilot study concluded that adenosine administration directly into the HA significantly increased HAF of liver grafts without systemic side effects.
10.The curative effect and safety of microinvasive percutaneous nephrolithotomy and ureteroscope lithotripsy in treatment of children' s middle and upper segment ureteral calculi
Zhuangzhi LI ; Zeming LIAO ; Yong CAI ; Chao WANG ; Rongquan YANG
Chinese Journal of Postgraduates of Medicine 2016;39(6):507-511
Objective To investigate the curative effect and safety of microinvasive percutaneous nephrolithotomy (MPCNL) and ureteroscope lithotripsy (URSL) in treatment of children′s (≤6 years old) middle and upper segment ureteral calculi. Methods Eighty children (≤6 years old) with middle and upper segment ureteral calculi were selected, and they were divided into observation group and control group according to random number table method with 40 cases each. The children of observation group were treated with MPCNL, and the children of control group were treated with URSL. The operation time, hospitalization time, calculi clearance rate of the first phase, decline situation of the postoperative hemoglobin and hematocrit and complication were compared between 2 groups. Results The operation time and hospitalization time in observation group were significantly shorter than those in control group:(45.43 ± 9.76) min vs. (68.32 ± 11.28) min and (8.12 ± 1.03) d vs. (13.45 ± 2.34) d, the calculi clearance rate of the first phase was significantly higher than that in control group: 100.0% (40/40) vs. 62.5%(25/40), the incidence of complication was significantly lower than that in control group:20.0%(8/40) vs. 60.0% (24/40), and there were statistical differences (P<0.05). There were no statistical differences in the decline situation of the postoperative hemoglobin and hematocrit between 2 groups (P>0.05). Conclusions The MPCNL in treatment of children′s middle and upper segment ureteral calculi has short operation time, high calculi clearance rate of the first phase, and low incidence of perioperative complication. Compared with URSL, the URSL is safe and efficient, and it is worthy of clinical application.