Objective To design an intravenous indwelling needle in battle field aid.Methods Several concavity were made on the hollow tube inner surface posterior puncture needle case,and some corresponding convexity uplifted peripheral needle handle pistons posterior puncture needle core.Revolution could be avoided because the needle handle pistons were just embedded in hollow tube concavity.It was convenient to operate and decreased the operator's orientation transformation by the needle's handhold vane adopting rectangle instead of butterfly shape.Results The improved puncture needle was stable and the rate of success of intravenous puncture was increased.Conclusion The improved venous retaining needle can be applied in battle field aid.

Objective To identify risk factors for anastomotic leakage after low anterior resection (LAR) in rectal cancer patients and study its impact on patients'long-term prognosis.Methods Chnical data were analyzed from 720 patients who underwent low anterior resection(LAR) for rectal cancer between 1996 and 2006.Results Anastomotic leakage after anterior resection occurred in 44 cases(6.1%).The median time of anastomotic leakage after operation was 5.6 days.Muhivariate analysis showed male patients.history of preoperative chemoradiation therapy,diabetes,cancer distance from anus less than 7 cm and hand-sewed anastomosis were independent risk factors predisposing anastomosis leakage (P<0.05).Tumor local recurrence rate was 13.6% in patients suffering from leakage and 5.9% for those without leakage (χ2= 4.116,P<0.05).The distant metastasis rates were 25.0 and 14.1 percent for the leakage and noaleakage groups,respectively(χ2=3.943,P<0.05).The survival rates were 56.8 and 72.5 percent in the leakage and nonleakage groups,respectively(χ2=4.979,P<0.05).Conclusion Sex,preoperative chemoradiation therapy,diabetes,cancer distance from anus less than 7 cm and hand-sewed anastomosis were found to be independent risk factors for anastomotic leakage after rectal cancer surgery.Anastomotic leakage was associated with poor prognosis.

Objectives\ To analyse the development of coronary intervention in our heart center of a general hospital in recent 13 years.Methods\ Coronary interventions were performed in 3945 target lesions of 2466 patients with coronary heart disease who were from 22 to 86 years old(averaged 58 8 yrs)with 80 5% of male,including 335 cases of acute myocardial infarction,64 cardiogenic shock,2106 acute coronary syndrome,1329 multivessel disease,and 21 left main disease.The proportion of complicated B2 and C type lesions were 77 1% and chronic total occlusion were 21 4%,PTCA and stenting were the main intervention operation(97 4%),and rotation,direct atherectomy,cutting,intravascular radiation and cover stenting were also perfromed for the remaining 2 6% patients.Results\ The mean annual case increase rate was 61 2% from 1995 to 2001 The toltal patient and lesion success rates were 98 1% and 97 1%,respectively.The mortality during intervention were 0 08% and for cardiogenic shock were 28 1% during hospitalization.Conclusions\ The data suggest that the success rate and incidence of complications for coronary intervention in the heart center with well-dereloped technigues are comparable with those reported in foreign literatures.

Objective To investigate the surgical indication,complication management and therapeutic effect in treating Stanford B aortic dissection by using endovascular graft exclusion (EVGE).Methods Eight patients with Stanford B aortic dissection who underwent the procedure of mini-traumatic EVGE from April 2002 to April 2003 were analyzed.Tubular graft stents were introduced over the entry tear of aorta via the femoral or iliac artery.The lengths of the graft stents were 97-99mm and the diameters 34-42mm.Results The procedure was technically successful in all patients and no severe complications occurred during the perioperative period. All patients were alive with no delayed endoleak found during the follow-up of an average of (9.5?4.6) months.Conclusion EVGE is safe and efficient for Stanford B aortic dissection and it can be the first choice for treating these patients.

Objective To assess the outcome of renal artery stenosis approached by percutaneous transluminal renal angioplasty (PTRA) and stents.Methods Seventy-two patients (50 males and 22 female) were diagnosed as renal stenosis by renal angiography.Of them,68 cases were with atherosclerosis.The PTRA was done via femoral access site.Changes in blood vessel diameter and blood flow nd complications were recorded.Renal angiograph was performed to check the restenosis.Patient’s blood pressure and serum creatine level before and after the were observed.Results Angiograph showed unilateral artery lesion in 60 cases and bilateral stenosis in 12 cases.The ostium was involved in 72 sites and mid-part in 8.The lumen diameter of stenosis was 60%-95%.The stents were successfully implanted in 68 cases with 78 stents and 4 cases only by balloon.The lumen diameter of lesion increased from 2.0mm (0.8-2.6mm) to 6.5mm (4.0-8.0mm).TIMI flow decreased in 3 cases and renal function was impaired in 4 cases,but not severe.Blood pressure in 42 cases with hypertension decreased significantly.One case was complicated with perirenal hematoma.and there was no perioperative death.Conclusion PTRA and stenting treatment for renal artery disease are feasible and safe.

60 years old with coronary artery disease in hospital from Jan.2002 to Aug 2004 who accepted coronary intervention.They were divided into Tansradial group(TRA,n=382) and Transfemoral group(TRF,n=382).The success rate and time of puncture,x-ray exposure time,procedure duration,dose of dye,complication in puncture site and pulmonary embolism were observed in the two groups.Results 368 out of 382 cases success in TRA group and 372 cases in TRF group.The success rate was not different.The success rate of puncture,x-ray exposure time,procedure duration and dose of dye had no difference between the two groups.But the complication in puncture site and pulmonary embolism were more in TRF group than in TRA group.The coronary intravascular ultrasound and cutting balloon technique were successfully done in two groups.The mean in-hospital time was less in TRA group (2.1?0.6 days) than in TRF group (4.2?1.6days,P

Objective To investigate the electrophysiological characteristics of the atrium in patients with atrial fibrillation (AF) during electrophysiological study (EPS) Methods Seventy two patients with presence of AF during EPS were selected as Group AF , and the other 78 patients without AF as Group control All the patients had no AF history and structural heart diseases P A, P CSd, S1 A1, S2 A2, Max CD, CD zone and ERP HRA were measured as the electrophysiological parameters Results P A, P CSd, S1 A1, S2 A2, Max CD and CD zone were significantly longer in Group AF than in Group control , ERP HRA was shorter in Group AF Conclusion The decreased atrial conduction and the shorter atrial effective refractory period may be the electrophysiological basis for the occurrence of AF

Objective To study congenital transmission of Trichinella spiralis in mice and observe the protection of anti-Trichinella antibodies from the infected dams to challenge infection. Methods According to the gestation (fertilization), the Kunming mice were divided into two groups: the infected group after gestation and the gestated group after infection. New-born mice were cut into small pieces to separate the larvae within 1 day after birth. One-day-old offspring born to normal dams were nursed by the infected dams, slaughtered after 21 days and examined for the larvae. Serum anti-Trichinella antibody level in offspring born to the infected dams was assayed by ELISA at different time after birth, and its immune protection against challenge infection was studied. Results Out of 6 offspring born to the dams infected at 7 days after fertilization, two were found to be infected. Among other female mice which were first infected with T. spiralis and then gestated, only the offspring born to the dams fertilized at 8 and 22 days after infection were found to be infected, the infection rate of offspring was 20% (2/10) and 25%(2/8) respectively. All larvae recovered from the young were non-encapsulated. The cross-fostering experiment showed that none of 30 offspring born to normal dams were found to be infected. The serum antibody positive rate in 27 offspring born to the infected dams at 1, 7, 24, and 40 days after birth was 100%, 100%, 77.8% and 14.8%, respectively. The worm reduction rate in the offspring 40 days after birth was 62.0% after challenge infection. The worm reduction rate in mice in which sera from the offspring born to the infected dams were passively transferred was 55.7%, there was a significant difference (P

Objective To evaluate in-hospital and mid-term results of endovascular type B aortic dissection by stent graft.Methods From May 2002 to September 2006, 46 patients with type B aortic dissection underwent stent graft implantation. The study included 36 men and 10 women with mean age of 62?18 years old. Twenty one patients underwent stent-graft implantation in the acute phase and the other 25 patients in the chronic phase. All patients were followed up for 1 to 52 months (average 17?16 months) and the clinical data of the patients were analyzed. Results No patients died during hospitalization and within 30 days after operation. Transient post-implantation syndrome occurred in 11 patients. Left subclavian artery was totally occluded in 2 patients. Endoleak occurred in 5 patients and in 4 of them the leak closed spontaneously after three months of follow-up. Late endoleak occurred in 1 patient after one year. One patient developed paraplegia at 6 months after the operation. The follow-up CT scan at 3 months documented occlusion of the intimal tear by the stent-grafts and complete thrombosis of the false lumen in all patients. The true lumen of the aorta was enlarged and there was no evidence of migration or twisting of the stent-grafts. Ascending aortic dissection occurred in 1 patient after one year. Three patients died within the follow-up period. The mortality during the follow-up period was 6.7%. The actuarial survival curve by the Kaplan-Meier method showed a 4-year survival rate was 89.3%. Conclusion In-hospital and mid-term results showed that endovascular repair was effective in the treatment of type B aortic dissection.

AIM The quality standard of Tongmai Jiangzhi Capsules (Rhizoma Curcumae Longae, Radix et Rhizoma Rhei, Fructus Ligustri Lucidi, Rhizoma Alismatis) has been established. METHODS TLC was used to identify curcumin, rhein, emodin, chrysophanol and aloe-emodin. HPLC was used to determine the content of curcumin, free-chrysophanol and free-emodin. RESULTS[WTBZ]: The linear relation was excellent for determination with ODS column and methanol-water-acetic acid(77∶ 22∶ 1)as mobile phase. The average recoveries of curcumin, free-emodin, free-chrysophanol were 101.8 % , 97.55 % and 97.64 % , respectively. The curcumin content in capsule was 2.27 mg, free-emodin 0.162 mg, free-chrysophanol 0.291 mg. CONCLUSION The methods are available with a good reproducibility and can be used to control the quality of Tongmai Jiangzhi Capsules.