3.Clinical research of section choice in caesarean section for placenta praevia
Guang SHI ; Peng YANG ; Tianyi YAO
Chinese Journal of Practical Gynecology and Obstetrics 2001;17(2):87-89
ObjectiveTo investigate the influence of transverse and longitudinal lower segment caesarean section on the outcome of newborn, postpartum haemorrhage and ratio of complications in placenta previa. MethodsPlacenta previa with lower segment transverse caesarean section( 117 cases) were taken as control group, meanwhile, the lower segment with longitudinal section (142 cases ) as experimental group. Their operational complications, amount of bleeding during and after operation and outcome of the perinatal period were analysed.Results No significant difference in age, parities, gestational weeks, the types of the placenta praevia and the locus of placenta between the two groups were found( P>0.05), while there were significant difference in the amount of bleeding during and after operation, the need of using gauze ribbon to stop bleeding, section splitting and rate of hysterectomy after caesarean section(P<0.01). ConelusionLower segment longitudinal caesarean section in placenta praevia not only shows less bleeding during operation and lower rate of postpartum haemorrhage, but also avoids using gauzes to stop bleeding and causes lower rate of hysterectomy after caesarean section, so it can be the first choice when determining the style of section in placenta praevia.
4.Research progress on myoepithelial carcinoma
Guoliang PI ; Peng XU ; Guang HAN
Chinese Journal of Clinical Oncology 2017;44(6):253-257
Myoepithelial carcinoma is a rare malignant tumor. The primary site of this tumor is the salivary glands. With the rapid ad-vancement in immunohistochemical examination and pathological examination, the number of clinical cases of the most common type of myoepithelial carcinoma of the salivary glands, as well as rare primary sites of myoepithelial carcinoma, reported in the litera-ture has increased. Based on related cases reported in the literature, various studies worldwide, and our personal practical experience, this article summarized advancements in the research on myoepithelial carcinoma, including etiology, pathology, clinical characteris-tics, diagnosis, and treatments, as well as myoepithelial carcinoma features of various rare primary sites. This article aims to provide useful evidence for oncologists in diagnosing and treating myoepithelial carcinoma.
6.Intraoperative vessel thrombosis and its management in free flap transfers in head and neck region.
Chi MAO ; Guang-Yan YU ; Xin PENG
Chinese Journal of Stomatology 2009;44(5):304-305
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Blood Vessels
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injuries
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Child
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Child, Preschool
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Female
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Free Tissue Flaps
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blood supply
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Head
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surgery
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Humans
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Male
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Middle Aged
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Neck
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surgery
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Tissue Transplantation
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adverse effects
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methods
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Young Adult
8.Effect of Copper Toxicity on Peripheral Blood T-lymphocyte in the Chicken
Hengmin CUI ; Guang YANG ; Xi PENG ; Junliang DENG ; Debing LI
Chinese Journal of Veterinary Science 2006;26(4):427-431
The experiment was conducted to examine the effect of copper toxicity on the peripheral blood T-lymphocyte using the flow cytometry(FCM) and ANAE.180 one-day-old Avian broilers were divided randomly into three groups,and fed diets as follows:(1)Controls(Cu 11.97 mg/kg diet) and (2)copper toxic(Cu 650 mg/kg diet,copper toxic group Ⅰ;Cu 850 mg/kg diet,copper toxic group Ⅱ) for six weeks.The ANAE positive ratios of the peripheral blood T-lymphocytes were much lower in the two copper toxic groups than in control group from 1 to 6 weeks of age(P<0.05 or P<0.01).Also,there was significant difference between copper toxic groups Ⅰ and Ⅱ at 1,3,5 and 6 weeks of age(P<0.05 or P<0.01).CD+4 T cell numbers reduced from 2 to 6 weeks of age in both copper toxic group Ⅰ and copper toxic group Ⅱ as compared with those of control group(P<0.05 or P<0.01).At the same time,there was significant difference between copper toxic groups Ⅰ and Ⅱ at 6 weeks of age(P<0.05).But the numbers of CD+8 T cell were not varied from 2 to 6 weeks of age in copper toxic groups Ⅰ and Ⅱ in comparison with those of control group(P>0.05).The CD+4/CD+8 ratio was lower from 2 to 6 weeks of age in copper toxic groups Ⅰ and Ⅱ than in control group.The results showed that copper toxicity could suppress the development of T-lymphocytes and reduce the peripheral blood T-lymphocyte populations.Potential mechanisms underlying these observations are also discussed.
9.Effect of different pressures of hyperbaric oxygen treatment on neuropathic pain in rats
Baisong ZHAO ; Yuanyuan DING ; Guang HAN ; Peng YAO ; Lingxin MENG
Chinese Journal of Anesthesiology 2013;(2):159-162
Objective To investigate the effect of different pressures of hyperbaric oxygen (HBO) treatment on neuropathic pain (NP) in rats.Methods Twenty-four healthy male Sprague-Dawley rats were randomly divided into 4 groups (n =6 each):sham operation group (group S),NP group,treatment with HBO at 2.0 atmosphere absolute group (group HBO2.0) and treatment with HBO at 2.5 atmosphere absolute group (group HBO2.5).The animals were anesthetized with intraperitoneal 5 % chloral hydrate 300 mg/kg.NP was induced by chronic constrictive injury.The left sciatic nerve was exposed and 4 loose ligatures were placed on the sciatic nerve at 1-mm intervals with 4-0 silk thread.After the rats were placed in the HBO chamber,the pressure was increased at a rate of 10 kPa/min until the desired pressure was reached,and then the pressure was maintained at this level for 60 min.The pressure was then decreased at a rate of 10 kPa/min until the normal pressure was reached.HBO treatment was performed once a day for 5 consecutive days starting from 1st day after operation in groups HBO2.0 and HBO2.5.While the rats were only placed in the HBO chamber and stayed for 100 min in groups S and NP.The mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured at 0,1and 2 h after leaving the HBO chamber (T0.2).Results Compared with group S,MWT was significantly decreased and TWL was shortened in group NP (P < 0.05).Compared with group NP,MWT was significantly increased and TWL prolonged at T1 during the treatment (P < 0.05),while no significant change was found in MWT and TWL at T2 during the treatment in groups HBO2.0 and HBO2.5 (P > 0.05).There was no significant difference in MWT and TWL at each time point during the treatment between groups HBO2.0 and HBO2.5 (P > 0.05).Conclusion Treatment with different pressures of HBO can reduce NP in rats,but the change in pressure dose not affect the analgesic efficacy.
10.Application of Two Kinds of Video Laryngoscope in General Anesthesia during UPPP Operation
Guiping WANG ; Lihua CHANG ; Peng ZHANG ; Jiujian WANG ; Guang BAI
Tianjin Medical Journal 2014;(8):822-824
Objective To compare success rate of intubation and safety of two types of video laryngoscopes during anesthesia in uvulopalatopharyngoplasty surgery (UPPP) for obstructive sleep apnea syndrome (OSAS) patients. Methods UPPP surgery were operated to 60 patients between January and October of 2013 and those patients were randomly divided into McGrath MAC video laryngoscope group (M group), GlideScope video laryngoscope (G group), and SHUCMAN direct la-ryngoscopy (S group), with 20 patients per group. Mallampati classification scores, Cormack-Lehane grade, intubation suc-cess rate, pre-intubation vs post-intubation heart rate and blood pressure changes were recorded and compared. Results Mallampati classification scores were not significantly different between these three groups, and Cormack-Lehane grade be-tween M group and G group were also not statistically different. M and G group had distinct advantages in Cormack-Lehane grade, success rate in intubation, heart rate, blood pressure at completion of intubation (T3) and 1 minute after intubation (T4), and the differences are statistically significant (P < 0.05). Blood pressure changes were stabler in G group than M group. Conclusion The two video laryngoscopes used in anesthesia intubation during UPPP surgery can both effectively re-veal the structure of the throat, but also work with high success rate and safety. What’s more, in this study the McGrath MAC video laryngoscope was shown to be superior to GlideScope video laryngoscope.