Background and purpose:The curative effect with radiotherapy or chemotherapy alone for the patients with unresectable stage Ⅲ non-small-cell lung cancer was poor. The 5-year survival was only 5-10 percent. Concurrent chemoradiotherapy could achieve better local control and overall survival of those patients and it had been reported that the 5-year survival was improved to 15.8 percent, but the toxicity were much more severe at the same time. We prospectively evaluated the efficacy and toxicity of concurrent chemoradiotherapy with low dose weekly paclitaxel for unresectable stage Ⅲ non-small-cell lung cancer and tried to make the regime more tolerable without the deterioration of treatment response. Methods:Forty-eight patients with unresectable stage Ⅲ non-small-cell lung cancer were randomized into low dose weekly paclitaxel group and control group.Both groups were treated by the standard fractionation schedule. All patients were irradiated 2.0 Gy/per fraction,five fractions a week,the total radiation dose was 60-64 Gy for tumor. Patients in the low dose weekly paclitaxel group received chemotherapy with 45 mg/m 2 of paclitaxel on every Monday; the patients in control group received 50 mg/m2 of cisplatin on days 2-4 and day 23-25, and 135 mg/m 2 of paclitaxel on days 1 and 22 concomitant with the radiotherapy.Results:The CR (complete response) rates of low dose weekly paclitaxel and control group were 21% and 13% respectively(P0.05).Conclusions:The patients treated by low-dose weekly paclitaxel group showed that both survival fraction and the period of local tumor control were higher than in control group. Additionally, low dose weekly paclitaxel concomitant with radiotherapy was well tolerated and were not statistically different from control group in terms of toxicities.

Objective:To observe the clinical effect of different background volumes of ropivacaine in continuous tibial nerve block of postoperative analgesia after calcaneal surgery.Methods:This study was a prospective,randomized,controlled study.Sixty cases of calcaneal visual analogue scale (ASA)ⅠorⅡundergoing elective surgery were selected and randomly assigned to two groups,thirty cases in each group.The patients received popliteal fossa posterior tibial nerve block using ultrasound guided.The con-tinuous stimulation catheter was inserted after successful position and the 0.2%ropivacaine was injected. The background volumes of the A and B groups were 5 mL/h and 3.2 mL/h.The VAS score,the senso-ry block and motor block of tibial nerve and common peroneal nerve,and the satisfaction of the patients at h 12,h 24 and h 48 were recorded after catheter insertion.Results:The VAS scores at the three time points (h 12,h 24 and h 48)on the two groups of the patients were compared,and the difference was not statistically significant (P >0.05).The difference of the sensory block and the motor block of the tibial nerve at the three time points (h 12,h 24 and h 48)on the two groups of the patients were also compared,and the difference was not statistically significant (P>0.05).The difference of the sensory block and the motor block of common peroneal nerve at h 48 hs was statistically significant,group A was higher than the group B (P<0.05).The difference of the patient satisfaction at the three time points (h 12,h 24 and h 48)on the two groups was not statistically significant (P>0.05).Conclusion:The use of 0.2% ropivacaine with the background volume of 3.2 mL/h in continuous tibial nerve block can pro-vide good analgesia and reduce the incidence of the sensory block and motor block of the common perone-al nerve.

Objective To compare the efficacy of ultrasound-guided continuous fascia iliac compartment block (cFICB) and neurostimulator-guided continuous femoral nerve block (cFNB) for postoperative analgesia in patients undergoing total knee arthroplasty.Methods Sixty-six ASA Ⅰ or Ⅱ patients,aged 46-78 yr,weighing 45-88 kg,scheduled for unilateral total knee arthroplasty,were randomly divided into 2 groups (n =33 each):cFNB group (group Ⅰ) and cFICB group (group Ⅱ).At 30 min before surgery,the patients received FNB guided by neurostimulator in group Ⅰ and FICB guided by ultrasound in group Ⅱ.A bolus of 0.5％ ropivacaine 20 ml was injected and a catheter for continuous nerve block was inserted in both groups.At 0.5 h after surgery,the catheter was connected to a patient-controlled analgesia (PCA) pump.PCA with 0.2％ ropivaeaine was used for postoperative analgesia (48 h).The PCA pump was set up to deliver a 5 ml bolus dose with a 30-min lockout interval and background infusion at 5 ml/h.VAS score was maintained ≤ 3.The distribution of sensory block was assessed at 10 min after the first administration,and at 0.5,4 and 24 h after surgery.The effective rate of sensory block was calculated.When VAS score ＞ 4,tramadol 50 mg was given intravenously or orally every 12 h as a rescue analgesic.When VAS score ＞ 5,pethidine 50 mg was injected intramuscularly as a rescue analgesic.The number of attempts was recorded during 0-4 h,4-12 h and 12-24 h after surgery.The consumption of tramadol and pethidine was also recorded during 0-24 h and 24-48 h after surgery.The sleep quality score during the nighttime was also recorded during 0-24 h and 24-48 h after surgery.Vascular puncture and parasthesia during nerve block were recorded.The toxic reaction,severe nausea and vomiting (lasting for more than 1 day) and nerve damage were recorded after surgery.Results Compared with group Ⅰ,the effective rate of sensory block in the medial aspect of the thigh was significantly decreased at 10 min after the first administration,and the effective rate of sensory block in the lateral aspect of the thigh was significantly increased at 0.5 h after surgery in group Ⅱ (P ＜0.05).There was no significant difference in the number of attempts,consumption of tramadol and pethidine,and sleep quality score during the nighttime during different time periods between the two groups (P ＞ 0.05).No vascular puncture or parasthesia was found during nerve block in the two groups.No toxic reaction,severe nausea and vomiting or nerve damage was found after surge,y in the two groups.Conclusion Ultrasound-guided cFICB has the similar analgesic efficacy with neurostimulator-guided cFNB after operation,but it can provide a wider distribution of sensory blockade in patients undergoing total knee arthroplasty.

Objective To determine the median effective dosage of 0.5% ropivacaine for ultrasoundguided lateral popliteal sciatic nerve block. Methods Twenty-three ASA Ⅰ or Ⅱ patients of both sexes, aged 19-20 yr weighing 52-90 kg received lateral popliteal nerve block guided with ultrasound for foot and ankle surgery.The volume of 0.5% ropivacaine injected was determined by the response of the previous patient using an up-anddown technique. The initial volume was 18 ml. Each time the volume increased/decreased by 2 ml.Successful nerve block was defined as complete loss of pinprick sensation in both tibial and common peroneal nerve distribution with concomitant inability to perform plantar or dorsal flexion of the foot 30 min after injection. Results The median effective dosage of 0.5% ropivacaine resulting in complete block of the sciatic nerve in 50% patients was 13 ml (95% confidence interval 11.3-14.9 ml).Conclusion The median effective dosage of 0.5% ropivacaine for ultrasound-guided lateral popliteal sciatic nerve is 13.0 ml.

Objective To report on the outcome of postoperative radiotherapy of keloid. Methods The recurrence rate of 83 patients with keloid which had been treated by surgery and postoperative radiotherapy were retrospectively reviewed with ? 2 check and stepsise LOGISTIC regression using software SAS 6.12. Results Recurrence of keloid after postoperative radiotherapy was correlate with size of lesion and interval after operation but not with sek,age or site of lesion. Conclusions With any an authentic method of postoperative radiotherapy,recurrence of keloid would only be correlated with size of lesion and interval after operation.

Objective To explore the association between the genetic polymorphism of hypoxia inducible factor 1 α (HIF-1α) G1790A and the radiosensitivity of nasopharyngeal carcinoma.Methods A total of 189 patients with nasopharyngeal carcinoma treated with radical radiotherapy were followed-up for 3 years.The patients were divided into cured group with 135 cases and recurrence group with 54 cases by clinical follow-up results.PCR-RFLP was used to determine the mononucleotide genotypes of HIF-1α G1790A.Results The observed genotype frequencies of HIF-1α gene 1790 (G→A) for GG, GA and AA were 70.04% , 20.74% , 2.22% in cured group and 59.26% , 38.89% , 1.85% in recurrence group, respectively.The allele frequencies for G and A were 87.4% , 13.9% in cured groups and 78.7% ,21.3% in recurrence group, respectively, without significant difference in distribution of allele frequencies between the two groups(x2 =6.919, P =0.077).Conclusions The genetic polymorphisms of HIF-1α G1790A might be related with the radiosensitivity of nasopharyngeal carcinoma.

Objective To investigate the clinical application value of three-dimensional ultrasonic inspection in prenatal diagnosis.Methods 90 cases of fetal formations were Tetrospecthely analysed,which were diagnosed by two-dimensionul associtated with three-dimensional ultrasonic inspection.We compared the ultrasonic inspection with the clinical diagnosis.Results The all coincidence rate was 100%by combining the two measures,three-dimensional ultrasonic inspection can make up the defect of two-dimemional ultrasonic inspection.Conclusion Two-dimensional combined with three-dimensional ultrasonic inspection can accurately diagnose fetal formations,and increase the detection rate.

OBJECTIVE:To provide reference for the rational utilization of narcotic drugs in cancer pain patients. METH-ODS:In retrospective survey,2275 prescriptions of narcotic drugs for cancer pain patients in outpatient and emergency depart-ment of our hospital during 2014-2016 were analyzed statistically in respects of general information,drug amount,consumption sum and DDDs,etc. RESULTS:The proportion of male patients and female patients with cancer pain in our hospital were 65.63%and 34.37% within 3 years,mainly aged 21-90. The consumption amount and sum of narcotic drugs in our hospital increased year by year. Dosage forms were mainly tablet. The consumption amount,sum and DDDs of Morphine hydrochloride sustained-release tablets took up the first places among narcotic drugs. And those of Pethidine hydrochloride injection were the lowest. CONCLU-SIONS:The utilization of narcotic drugs is rational in outpatient and emergency department of our hospital on the whole. Morphine preparations are the predominant analgesic drugs for patients with cancer pain.

Objective To research and design-an personal dosimeter system to provide data for nuclear radiation injury protection.Methods The overall architecture,hardware module and software of the system were designed with ZigBee wireless network technology and the principle.The system was composed of a terminal node,a router and a coordinator.Results The system could collect the information on nuclear radiation dosage of the serviceman within 1 km,and then the data were uploaded with the wireless network.Conclusion The system gains advantages in low power consumption,low cost,low interference and etc,and plays a very important role for commander to hold the combatants' nuclear radiation dose in the battlefield.In addition the system can also be applied in civilian field to enhance the personal dose management.

Objective To evaluate the efficacy of patient-controlled infraclavicular brachial plexus block for analgesia after elbow arthrolysis.Methods Eighty patients with elbow stiffness of both sexes, aged 18-64 yr, of American Society of Anesthesiologists physical status Ⅰ-Ⅲ, scheduled for elective elbow arthrolysis, were equally and randomly assigned to receive either the infraclavicular (Ⅰ group) or axillary (A group) brachial plexus block.All catheters were placed using ultrasound visualization preoperatively.When patients complained of pain in the recovery room after regaining consciousness, 0.2％ ropivacaine was injected via the catheter, 15 min later patient-controlled infraclavicular brachial plexus block was performed with 0.2％ ropivacaine (400 ml), and an electronic pump was set up with a 5 ml bolus dose, a 30 min lockout interval and background infusion at a rate of 5 ml/h.The patients underwent rehabilitation exercise everyday for 3 consecutive days starting from 24 h after operation.The catheter insertion time, successful block, and occurrence of moderate or severe pain (numeric rating scale [NRS] score ＞ 4) and greater inserting resistance (inserting resistance score＞ 1) during insertion, and the occurrence of paresthesia and vascular damage during insertion were recorded.NRS score was recorded at 24, 48 and 72 h after operation during rehabilitation exercise.The elbow articular range of motion was recorded at 72 h after operation, and the improvement in articular range of motion was calculated.The satisfaction with the improvement in articular range of motion (improvement ≥ 80％) and occurrence of complete improvement in articular range of motion (improvement=100％) were recorded.Catheter-related adverse reactions (such as oozing from the insertion site, obstruction, prolapse) and local anesthetics-related adverse reactions (nausea and vomiting, central nervous system toxicity) were recorded.Results The success rate of blockade was 100％ during insertion in both groups.Compared with group A, the catheter insertion time was significantly shortened, the incidence of moderate or severe pain and greater inserting resistance during insertion was decreased, the incidence of paresthesia and vascular damage during insertion was decreased, NRS score at 24 h after operation durig rehabilitation exercise was decreased, the incidence of complete improvement was increased (P＜0.05), and no significant change was found in the improvement in articular range of motion and satisfaction with the improvement in group I (P＞0.05).Conclusion Patient-controlled infraclavicular brachial plexus block can be safely and effectively used for analgesia after elbow arthrolysis, and it provides better efficacy than patient-controlled axillary brachial plexus block.