中厚皮、厚中厚皮供区瘢痕的预防

目的探讨用手术方法预防中厚皮、厚中厚皮供区瘢痕的形成。方法采用超薄刃厚皮片覆盖中厚皮供区创面,为32例患者实施一次性手术完成创面的修复与供区瘢痕的预防。结果30例中厚皮及刃厚度供区2周左右愈合,而且均不留任何增生性瘢痕。2例供区2周后未完全愈合,经数次换药而愈合。结论采用超薄刃厚皮片覆盖中厚皮供区创面的手术方法能有效地预防供皮区瘢痕的形成。     

人工真皮修复儿童四肢烧伤后瘢痕挛缩的临床效果

目的:探讨人工真皮支架植入术联合自体刃厚皮移植术修复儿童四肢烧伤后瘢痕挛缩的疗效.方法:选择烧伤后瘢痕挛缩影响功能患儿28例,按照手术方法不同分为观察组和对照组,各14例.观察组瘢痕切除后行人工真皮联合自体刃厚皮移植术;对照组行瘢痕松解后中厚皮移植术.比较2组患儿术后供皮区愈合时间、植皮成活率、术后1周创面感染率及术后随访6个月取皮区、植皮区瘢痕增生情况.结果:观察组供皮区愈合时间明显短于对照组(P<0.01).术后1周2组植皮区创面均无感染,所植皮片基本存活.术后随访6个月,2组供皮区温哥华瘢痕量表评分差异无统计学意义(P>0.05),而观察组植皮区温哥华瘢痕量表评分优于对照组(P<0.05).结论:应用人工真皮支架联合自体刃厚皮修复儿童四肢烧伤后瘢痕挛缩效果较好,值得推广.     

中厚皮供区创面愈合临床研究

目的观察中厚皮供区应用刃厚皮回植促进创面愈合减少瘢痕的作用。方法对2002—2010年收治的192例患者行背部或大腿外侧取中厚皮,将供皮区创面分为3组,治疗组(A组)即大张及邮票刃厚皮回植覆盖,对照组功能性敷料覆盖(B组)和凡士林纱布覆盖(C组),刃厚皮供区又分为头部、大腿和后背3个部位。分别观察治疗组和对照组供皮区创面的愈合时间、局部疼痛、瘢痕生长情况。结果创面愈合的平均时间,A组为6.2±1.1 d,B组为11.1±2.1 d,C组为13.5±2.5 d;术后第2天和第5天疼痛评分,A组平均疼痛评分为2.3±0.86和1.9±0.8,B组为2.5±1.1和3.9±1.3,C组为3.8±1.4和5.9±2.1;术后6~12个月瘢痕评分,A组评分为2.8±1.5,B组为6.6±2.1,C组为8.2±3.6,3组比较差异有统计学意义(P<0.01)。刃厚皮供区头部愈合时间、疼痛评分和瘢痕生长优于后背和大腿(P<0.01)。结论刃厚皮回植能显著缩短中厚皮供区创面愈合时间,减轻患者治疗期间中厚皮供区疼痛,预防中厚皮供区瘢痕增生。     

刃厚皮大张回植预防供皮区瘢痕增生

目的 预防整形外科游离中厚皮移植术供区瘢痕增生.方法 采用大张刃厚皮回植中厚皮供区.结果 本组患者20例,回植皮片全部存活,均无中厚皮供区瘢痕增生,其中有8例已随访一年.结论 大张刃厚皮回植,能有效地预防了中厚皮供区瘢痕增生,临床疗效满意.     

自体头皮移植修复中厚皮片供皮区的效果观察

目的探讨自体头皮移植修复烧伤患者中厚皮片供皮区的临床效果。方法选择2009年5月—2014年5月收治的烧伤患者60例,按随机机械抽样法分为对照组、头皮组,每组各30例。两组患者烧伤创面经清创后,自大腿前外侧以电动取皮机切取厚0.3 mm中厚皮片修复烧伤创面。对照组供皮区创面应用单层凡士林油纱贴敷并适度加压包扎;头皮组用电动取皮机自头皮切取厚0.12~0.15 mm、大小10 cm×5 cm~20 cm×5 cm条状刃厚皮片,移植于中厚皮片供皮区。观察两组患者供皮区愈合时间,并应用温哥华瘢痕量表评分、瘙痒评分和瘢痕增生率评价瘢痕供皮区瘢痕增生情况。结果两组患者性别和年龄的差异无统计学意义,具有可比性(P>0.05)。头皮组术后第7天移植头皮全部成活,中厚皮片供皮区愈合时间(7 d)显著短于对照组(平均21 d)(P<0.01)。术后1年随访,头皮组供皮区瘢痕量表评分、瘙痒评分和瘢痕增生率分别为1.4±0.6分、1.3±0.3分和15.6%±7.1%,显著低于对照组的6.4±1.2分、2.1±0.6分和54.8%±13.2%(均P<0.01)。结论采用自体头皮移植修复烧伤患者中厚皮片供皮区可明显缩短创面愈合时间,且可减轻瘢痕增生程度。     

头皮刃厚皮回植术式在小儿烧伤中厚皮供皮区应用的疗效观察

目的：探讨头皮刃厚皮回植术式在小儿烧伤治疗中厚皮供皮区应用的效果。方法选择2006年5月至2012年5月广东省东莞市虎门医院收治的烧伤患儿69例,按随机机械抽样法分为对照组、头皮组和非头皮组,每组各23例。三组患儿经清创后,自大腿的前外侧以鼓式取皮机胶纸取皮法切取0.30 mm中厚度的皮片,于烧伤的创面上进行移植。对照组患儿中厚皮的供皮区创面直接应用单层的凡士林油纱贴敷并简单进行适度的加压包扎;头皮组使用气动取皮刀来切取条状刃厚头皮,10 cm×5 cm~20 cm ×5 cm大小、0.12~0.15 mm厚度,然后回植于中厚皮的供皮区;非头皮组以相同方法自中厚皮的供皮区旁切取条状的刃厚皮,厚度、大小、回植方法同头皮组。观察比较各组患儿瘢痕的增生程度以及供皮区愈合时间。结果头皮组、非头皮组患儿供皮区的瘢痕评分分别为（3.2±0.5）分和（3.9±0.7）分,明显低于对照组的（12.1±1.3）分（P均〈0.05）;而头皮组与非头皮组间比较差异无统计学意义（P〉0.05）。头皮组、非头皮组患儿供皮区的愈合时间分别为（11.4±2.7） d和（12.5±3.8） d,均比对照组的（21.7±5.6） d明显缩短（P〈0.05）;而头皮组与非头皮组间比较差异无统计学意义（P〉0.05）。结论烧伤患儿采用头皮刃厚皮回植于中厚皮的供皮区术式可以明显缩短创面的愈合时间,且可减轻瘢痕增生的程度。     

中厚供皮区回植自体刃厚皮片的疗效观察

目的 探讨中厚供皮区创面回植自体刃厚皮片的临床疗效。方法 选择2004年1月～2007年4月43例各种原因致功能部位全层皮肤缺损行中厚皮移植的患者，按中厚供区处理方法分为A组（回植刃厚皮片组，20例）和B组（常规处理组，23例），对两组创面的愈合时间、感染情况及愈合后瘢痕形成等情况进行比较。结果A组平均愈合时间（11．2±3．2）d，创面感染1例，愈后瘢痕少；B组平均愈合时间（21．5±6．4）d，创面感染5例，愈后瘢痕明显。两组愈合时间比较有显著统计学意义（P〈0．01）。结论中厚供皮区回植自体刃厚皮片，可加速创面愈合，减少瘢痕形成。     

削取中厚皮的供皮区术后创面处理临床分析

目的为探讨烧伤早期整形和瘢痕增生整形病人削取中厚皮术后的供皮区创面处理治疗方案。方法随机分两组:A组(30例):削取中厚皮 刃厚头皮或刃厚体皮回植供皮区疗法;B组(31例):削取中厚皮术后采用半暴露疗法,观察两组术后的Hb、WBC计数,肝功能ALT、伤口愈合的时间。结果A组术后无痛苦,创面平均愈合时间(9.0±1.5)d,B组术后创面渗血、渗出多,疼痛明显,平时愈合时间(21.5±2.5)d,11例发生创面感染,6例再次植皮修复。结论削取中厚皮 刃厚头皮或体皮回植疗法,手术简便,促创面提早愈合。     

凡士林纱布作载体微粒皮回植修复供皮区的临床观察

目的：观察凡士林纱布作载体微粒皮回植修复中厚或厚中厚供皮区的临床疗效.方法：临床应用凡士林纱布作载体微粒皮回植修复中厚或厚中厚供皮区24例,与未回植的供皮区进行疗效比较,并随访0.5～1年.结果：回植组创面愈合时间为（11.2士3.6）d,未回植组为（18.4士4.2）d,两组间差异有非常显著意义（P＜0.01）;经0.5～1年随访,回植组创面愈合后瘢痕增生轻,外观平整;未回植组创面愈合后均有不同程度瘢痕增生和色素沉着,有刺痛及瘙痒症状.结论：采用凡士林纱布作载体微粒皮回植修复供皮区,愈合时间快,创面愈合后瘢痕增生轻,外观平整,特别适用于基层医院异种皮、异体皮缺乏的情况.     

全厚皮片移植修复烧伤后肉芽创面

目的　探讨全厚皮片修复面部肉芽创面对愈后功能的影响。方法　应用全厚皮片修复面部肉芽创面共 6例。结果与传统的大张中厚皮片及刃厚皮片比较 ,瘢痕增生轻、外观、功能均良好。结论　全厚皮片修复面部肉芽创面 ,可有效地防止愈合后瘢痕增生 ,保证良好的外观     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.