ABSTRACT
Through several years of exploration in Shanghai Chongming region, the team from Chongming Branch of Xinhua Hospital has established the initial multidisciplinary diagnosis and treatment model of cancer pain, which includes the department of oncology, anesthesiology, pain, rehabilitation, psychology and so forth. By means of medical informationization, they take cancer pain management as the starting point and have initially real-ized a new model of the real-time assessment and treatment of cancer pain, which has helped patients effectively reduce the physical and psychological suffering, improved the quality of life, developed a healthy self-manage-ment of patients, and has reference significance to palliative care.
ABSTRACT
Objective To assess the biomechanical stability and vertebra strain distribution of asymmetrical posterior internal fixation for minimally invasive transforaminal lumbar interbody fusion ( MI-TLIF) . Methods Range of motion ( ROM) and strain distribution testing were performed in 8 fresh-frozen calf lumbar spine motion segments in flexion/extension, lateral bending, and axial rotation using 5. 0 Nm torques at the L4-5 motion segment. The sequential test configurations included intact motion segment, TLIF with unilateral pedicle screw ( UPS) , TLIF with UPS plus transfacet pedicle screws ( UPS+TFPS) , and TLIF with bilateral pedicle screw ( BPS) . The ROM was deter-mined to assess the construct stability. Strain distribution was recorded along with flexion and lateral bending configurations. Results In flexion/extension, lateral bending, and axial rotation, there was no significant difference in the ROM between BPS and UPS+TFPS fixation after TLIF. After TLIF, the UPS construct provided less segment stability than BPS and UPS+TFPS fixation in flexion, lateral bending. Strain distribution under UPS+TFPS fixation was respectively 21. 8% and 24. 2% higher than that under BPS fixation along with flexion and lateral bending. Conclusion UPS+TFPS fixation provides stability comparable to that of MI-TLIF with bilateral PS, with better load share with the vertebrae body.
ABSTRACT
BACKGROUND:The anesthesia process is required strict in establishing rabbit models of ileal neobladder. It is required for cleaning operation field, quick postoperative recovery, and the choice of anesthetics and anesthesia does not influence smooth muscle peristalsis. OBJECTIVE:To compare the anesthetic effects between urethane and chloral hydrate in rabbits with ileal neobladder. METHODS:Eighteen rabbits were randomly assigned to urethane and chloral hydrate groups, and were respectively anesthetized with 20% urethane 5 mL/kg and 10% chloral hydrate 2 mL/kg through the ear vein. Double ureter was dissociated at 1 cm outside original bladder, and 15 cm-intestine obtained from 10 cm of ileocecal junction was implanted so as to establish models of ileal neobladder. RESULTS AND CONCLUSION:Heart rates were significantly lower compared with these before anesthesia in al cases (P≤ 0.05), but no differences were detected between two groups (P > 0.05). Compared with the chloral hydrate group, the maintain time and recovery time were longer and the mortality rate was higher in the urethane group. Above data indicated that chloral hydrate is a safe long-acting anesthetic in establishing rabbit models of ileal neobladder.
ABSTRACT
Objective To investigate the effect of ketamine on learning and memory function of adult rats after injection of ketamine at early development stage. Methods Twelve rats born in a week were randomly divided into ketamine anesthesia group(Ket group)and normal saline control group(Ns group).Rats in Ket group were intraperitoneally injected with 50 mg/kg ketamine,and those in Ns group were administrated with same amount of normal saline.After eight weeks,Morris water maze test was adopted to explore the latency in place navigation and spatial probe ability.The sections of hippocampus were obtained,and immunohistochemical staining was employed to detect the expression of Bax and Bcl-2.Results In Morris water maze test,the latency in place navigation of Ket group Was significantly longer than that of Ns group(P<0.05),and the spatial probe ability significantly decreased(P<0.05).It Was revealed by immunohistochemical staining that the expression of Bax in Ket group was significantly higher than that in Ns group,while there was no significant difference in the expression of Bcl-2 between these two groups. Conclusion Application of ketamine in neonatal rats may result in learning and memory impairment in adulthood,and the underlying mechanism may correlate to the apoptosis of neuron in hippocampus region.