1.Review of sensitivity of diabetics to local anesthetics
Qiuqi HUANG ; Qingguo ZHANG ; Shiyuan XU
Chinese Journal of Biochemical Pharmaceutics 2015;(6):165-167,170
Local anesthetics have neurotoxicity, which can lead to temporary or permanent sensory and motor dysfunction.And regional anesthesia is commonly used in diabetics undergoing limbs or lower abdominal surgery, so that local anesthetics were widely used in them.However local anesthetics sensitivity in patients with diabetics is not yet clear.In this paper, we will discuss the problem and make a summary.
2.Advances of targeting heat shock protein 70 drugs
Zongliang LIU ; Renmei ZHANG ; Qingguo MENG
Journal of China Pharmaceutical University 2017;48(4):416-424
Heat shock protein 70 (HSP70) family is one ofthe most conserved proteinin evolutionand plays critical,role in proteostasis.HSP70 is becoming an interesting target for multiple diseases such as cancer and Alzheimer's disease.There are many drugs targeted to HSP70 in preclinical study.In this review,the classification,the structure,the function of HSP70,and the drugs of the HSP70 family are reviewed.
3.Effect of rocuronium on acetylcholine receptor in cone neurons of hippocampal cortex in rats
Shiyuan XU ; Changke LI ; Qingguo ZHANG
Chinese Journal of Anesthesiology 1994;0(03):-
Objective To investigate the effect of rocuronium of on the function of acetylcholine receptor (AchR)/channel in cone neurons of hippocampal cortex in rats.Methods SD rats of both sexes (2-5 days old) were killed by decapitation. Brain was immediately removed and hippocampal cortex was cut into slices which were incubated in decalcified and magnesium-free artificial cerebro-spinal fluid (CSF) and mechanically dissociated and then digested in artificial CFS containing 2.5% trypsin. Cell suspension was prepared. The AchR/channel function was studied in the absence and presence of various concentrations of rocuronium (0, 0.05, 0.1, 0.2, 0.4mmol? L-1) and/or atropine 0.1 mmol ?L-1 using patch clamp technique.Results (1) The conductance, open probability (P0) and short term open constant (?01) were significantly higher in R-0.05 group than those in the control group (R-0) , but there was no significant difference in long term open constant (?02) , short term close constant( (?c1) and long term close constant(?c2) between the two groups. The conductance, P0 ,?01 ,?02 , ?c1, and ?c2 were significantly longer or higher in R-0.0, 0.2 and 0.4 groups than those in control group. (2) There was no significant difference in the conductance, P0 , ?01 , ?02 , ?c1 , and ?c2, between R-0.5 and control group but those in R-0.0, 0.2 and 0.4 groups were significantly higher or longer than control group, when rocuronium was used with atropine. Conclusions AchR/channel ( muscarinic and nicotinic ) in cone neuron of hippocampal cortex were excited by different concentrations of rocuronium. The results suggest that adverse effect may be induced on CNS by rocuronium in case it permeates the injured blood-brain barrier.
4.Approach to the patients with thyroid nodules
Qingguo LYU ; Yuwei ZHANG ; Nanwei TONG
Chinese Journal of Endocrinology and Metabolism 2015;31(1):89-92
[Summary] Thyroid nodules are the most common endocrine and metabolic diseases,and most of them are accidental nodules.How to distinguish the state between benign and malignant thyroid nodules is the clinical core problems in diagnosis and treatment.In addition to detailed history collecting and physical examination,highresolution ultrasound,serum thyrotrophin levels,and fine needle aspiration biopsy (FNAB) form the basis for the diagnosis of thyroid nodules.Endocrinologists should grasp the indications of FNAB.When the pathological finding is unable to distinguish between benign and malignant nodules,molecular or genetic diagnosis should be adopted for further diagnosis.Appropriate treatment is selected according to the definitive results.In this article,we share the whole process that one case with thyroid nodule was diagnosed as papillary thyroid carcinoma and eventually treated with surgery,so as to make clinicians pay more attention to thyroid nodules with standardized clinical diagnosis and treatment.
5.Effect of Ulinastatin on TNF-α and IL-6 in serum of patients with undergoing operation of intracranial aneurysm embolization
Fengfei FAN ; Ruijuan WANG ; Qingguo ZHANG
The Journal of Practical Medicine 2015;(13):2078-2080
Objective To explore the effect of Ulinastatin on proinflammatory cytokines of patients undergoing operation of intracranial aneurysm embolization. Methods 40 patients undergoing operation of intracranial aneurysm embolization were randomly divided into 2 groups (n = 20): ulinastatin group (Group U), normal saline group (Group C). In group U, 6 000 IU/kg Ulinastatin was infused via vein before anesthesia induction, the group C received the injection of isovolume normal saline. Exsanguinated arterial blood at T1, T2, T3, T4 and T5 five time points were taken to measure TNF-α and IL-6 in serum. Results The contents of TNF-α and IL-6 in serum both increased at T3, T4 and T5 compared to that at T1 in both groups; both TNF-α and IL-6 significantly decreased in Group U compared to that in Group C at the same time point. Conclusion Ulinastatin may inhibit the release of inflammatory mediators and lighten cerebral ischemia-reperfusion injury in patients undergoing operation of intracranial aneurysm embolization.
6.Efficacy of ultrasound-guided continuous fascia iliac compartment block versus neurostimulator-guided continuous femoral nerve block for postoperative analgesia in patients undergoing total knee arthroplasty
Qingfen ZHANG ; Huihua LIN ; Qingguo YANG
Chinese Journal of Anesthesiology 2012;(11):1297-1301
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.
7.Reconstruction of thumb II-III degree defect by big toe wrap-around flap combined with second toe proximal interphalangeal joint.
Fufang SONG ; Wengang WANG ; Qingguo ZHANG
Chinese Journal of Plastic Surgery 2015;31(3):191-194
OBJECTIVETo investigate the reconstruction of thumb II-III degree defect by big toe wrap-around flap combined with second toe proximal interphalangeal joint.
METHODSBetween May 2004 to July 2012, 25 cases with thumbs II-III degree defects were treated. The ipsilateral big toe wrap-around flap combined with second toe proximal interphalangeal joint was designed to reconstruct the thumb defects based on the thumb size on the healthy side. The distal end of hallux was covered by flap at tibial side. The wound at the fibula side was covered by skin graft and flap. The bone defect at the second toe was filled with remnant hallux or iliac bone.
RESULTSAll the 25 reconstructed thumbs survived completely. The patients were followed up for 6-26 months without any joint degeneration. According to the finger reconstruction functional criterion publicized by China Medical Association, the finger function was assessed as excellent in 10 case, good in 11 cases, poor in 4 cases. Joint necrosis happened in 2 cases and bone malunion in 2 cases. The 4 cases received dead bone debridement and iliac bone graft. No malfunction occurred in the donor site.
CONCLUSIONSOur surgical method is a currently effective way to reconstruct II-III degree thumb defects. Satisfactory functional and cosmetic results can be achieved both in donor site and recipient site.
Aged ; Bone Transplantation ; methods ; China ; Hallux ; Humans ; Ilium ; transplantation ; Necrosis ; etiology ; Postoperative Complications ; pathology ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; methods ; Surgical Flaps ; Thumb ; surgery ; Toes
8.Clinical application of fat granule auto-graft in facial soft tissue depression
Lianbo ZHANG ; Bin WANG ; Qingguo GAO ; Guang ZHANG ; Weitian YIN
Chinese Journal of Medical Aesthetics and Cosmetology 2008;14(2):91-93
Objective To evaluate the clinical application of fat granule auto-graft in facial soft tissue depression reconstruction.Methods Autologous subcutaneous fat granules were obtained by syringe aspiration from donating site.then washed with normal saline.Small amounts of fat granules were injected into the facial sites with soft tissue depression by means of multiple passes immediately.Results We performed such fat iniection in a total of 18 cases,all of the procedures were safe and successful.In most cases,single injection were enough,only one underwent two sessions of fat iniection.All members were followed-up for 1.5 months to 24months,the average were 14 months.All facial tissue depression were reconstructed for difierent degrees.The rate of fullness and symmetry.fullness and pretty symmetry and fullness with little asymmetry were 77.8%,16.7%and 5.5%.respectively.No infection,fat necrosis or liquefaction occured.Conclusion Being satisfled in correction of deformity of facial depression.the implantation of autologous fat globules iS safe and effective with less side-effects.
9.The effect of different doses of vecuronium on respiratory function and mechanics during laparoscopic cholecystectomy
Shiyuan XU ; Hui LIU ; Ping XU ; Qingguo ZHANG ; Rui XU ;
Chinese Journal of Anesthesiology 1995;0(02):-
70% . The patients were mechanically ventilated. VT was set at 10 ml? kg-1 and respiratory rate at 12 bpm. End-tidal PCO2 was maintained at 30-35 mm Hg. End-tidal PCO2, SpO2, ECG and BP were continuously monitored. The respiratory function and mechanics were measured using respiratory monitor CP-100 (BICORE) before and after pneumoperitoneum (intra-abdominal pressure reached 15 mm Hg) and 5,10,15,20,25,30,35 min after vecuronium. The respiratory parameters measured included inspiratory and expiratory VT ( VTi, VTe) , minute ventilation (VE), respiratory rate (RR), peak inspiratory and expiratory flow rate (PIFR,PEFR), PEEP, auto-PEEP, pressure-time product (PTP), inspiratory-time ratio (TI/TTOT ), rate/VT ratio, average airway pressure (PAWM), esophageal pressure (PES), peak inspiratory pressure (PIP), dynamic compliance (CDyn), airway resistance (RAw ) and work of breathing. Results There was no significant difference in the effect of different doses of vecuronium on respiratory function and mechanics including all parameters measured at all time points among the three groups. Mean airway pressure, esophageal pressure peak inspiratory pressure, airway resistance and work of breathing increased significantly but dynamic compliance decreased significantly after CO2 penumoperitoneum. Conclusion Intra-abdominal CO2 insufflation significantly attect respiratory mecnanics. me effect of pneumoperitoneum on respiratory mechanics can not be prevented or attenuated by increasing the dose of muscle relaxant.
10.Vertebral decompression and implant fixation for thoracolumbar burst fractures:posterior approach is safer in follow-up
Jinlong JIA ; Qingguo YANG ; Yinshun ZHANG ; Wei LI ; Guangyi LIU
Chinese Journal of Tissue Engineering Research 2015;(22):3531-3537
BACKGROUND:Previously, serious thoracolumbar burst fractures with spinal cord injury were mainly treated by anterior surgery. The superiority of conventional posterior repair lies in strong reduction and fixation effects. However, it is difficult to fuly decompression. The anterior and central cylinders of the injured vertebra cannot receive good reconstruction. Loss of correction and internal fixation failure always appear. It remains controversial which repair method is more ideal. OBJECTIVE:To comparatively analyze the effect of posterior and anterior approaches with subtotal vertebrectomy, decompression, reconstruction of spine, and internal fixation for patients with thoracolumbar burst fractures. METHODS: The data of 42 patients with thoracolumbar burst fracture treated by anterior and posterior approaches with subtotal vertebrectomy, decompression, and reconstruction of spine from May 2006 to December 2012 was retrospectively analyzed. They were divided into two groups according to the surgical procedures: anterior approach group (n=23) and posterior approach group (n=19). They were folowed up for at least 24 months. Repair results and imaging results were compared in patients of both groups. RESULTS AND CONCLUSION:None patients in the two groups affected fixator loosing or breakage, and obtained good bone fusion. The intraoperative blood loss was more and operative time was longer in the anterior approach group than in the posterior approach group, showing significant difference (P < 0.05). The pulmonary function was significantly better in the posterior approach group than in the anterior approach group (P < 0.05). Visual Analog Scale score, Japanese Orthopaedic Association score for back pain and Frankel classification were significantly improved during final folow-up compared with pre-treatment in both groups, but no significant difference was found between groups (P > 0.05). No significant difference in the anterior vertebral height and kyphosis Cobb angle was detected before treatment, at 1 week after treatment and during final folow-up (P > 0.05). The incidence of postoperative complications was significantly higher in the anterior approach group than in the posterior approach group (P < 0.05). These findings confirm that subtotal vertebrectomy through anterior approach and posterior approach can effectively repair thoracolumbar burst fractures. However, the complications of posterior approach are less, and posterior approach has few impacts on the pulmonary function, is safe, and has good biocompatibility with the host.