Objective To investigate the changes of ocular hemodynamics in patients with retinal vein occlussion(RVO)． Methods The hemodynamic parameters(PSV,EDV,PI,Vmax)of central retinal artery(CRA)and central retinal vein(CRV)were measured in the involved eyes(n=48) with RVO and the contralateral clinically healthy eyes(n=39) and in the control eyes(n=40) by color Doppler imaging (CDI)(ATLHDI3000). Results Peak systolic velocity (PSV) and end diastolic velocity (EDV) were significantly lower in the CRA of involved eyes and clinically healthy eyes of patients with RVO compared with control eyes,and pulsatility index(PI)was significantly higher in the CRA of involved eyes of patients with RVO compared with control eyes．PSV were significantly lower in the CRA of involved eyes of patients with RVO compared with their clinically healthy eyes．Pulsatility index(PI)was significantly higher in the CRA of involved eyes of patients with RVO compared with their clinically healthy eyes．Maximun vein velocity (Vmax) was significantly lower in the CRV of involved eyes and clinically healthy eyes of patients with RVO compared with control eyes． Conclusion The changes of hemodynamics in CRA,CRV of involved eyes of patients with RVO may invade their clinically healthy eyes．CDI may be helpful to early diagnosis for RVO． (Chin J Ocul Fundus Dis,1998,14:111-113)
摘要:目的:评价膝关节滑膜超声检查在类风湿关节炎(RA)患者随访中的价值及其与RA临床活动度之间的相关性。方法:收集确诊的RA病人40例,其中68个膝关节有阳性症状。分别收集40例RA患者的临床资料,计算其疾病活动度DSA28,同时行膝关节超声检查,对有阳性症状的膝关节动态随访三次上述指标,每月一次。结果:每月RA患者的DSA28分值与受检膝关节髌上囊内液体深度、滑膜内血流信号等级呈正相关(Plt;0.05);膝关节髌上囊内液体深度、滑膜内血流信号等级以及滑膜厚度三者之间均呈正相关(Plt;0.05)。结论:膝关节滑膜内血流信号等级和膝关节髌上囊内液体深度是良好的随访RA患者疗效与评估RA患者活动度的超声指标。Abstract: Objective: To evaluation the disease of synovial in knee joints in patients with RA by ultrasound, and investigate the relationship between the clinic activity of RA and findings by ultrasound. Methods: The clinic dates and ultrasound of 40 RA patients, including 68 knee joints have positive symptom were collected by every month. The course of treatment was 3 months. Results: The score of DSA28 was correlated with the thick of effusion in bursa supragenual and the blood single of synovial in knee joints(Plt;0.05);the correlation also found among the thick of effusion in bursa supragenual.the thick of synovial and the blood singal of synovial in knee joints (Plt;0.05). Conclusion: The thick of effusion in bursa supragenual and the blood single of synovial in knee joints was excellent ultrasound index in RA.
In order to investigate the mechanism of blood supply to the delayed separated skin flap and the time and criteria for its transfer, 5 smallsized Banna pigs were selected to produce 14 skin flaps. In the experimental group the skin flap on one side was made from the middle of the back having an extrathin steel sheet intervened between the flap and the soft tissue of the back whereas the flap on the opposite side without a steel sheet intervened was served as the selfcontrol. The skin flaps were examined 3,7,10 and 20 days after the operation and 3,7 and 10 days after transfer, respectively, by (1) gross observation; (2) ultrasonic Doppler; (3) superficial skin temperature measurement and; (4) histomorphological examination. In the experimentalgroup the survival rate of the flap was 100 percent whereas in the control group all of the flaps had necrosis from 30 to 50 percent after the flap being transfered. In the experimental group, the echo sound from the arterial blood flow from ultrasonic Doppler was heard at the pedicle 7 days after the operation, and as time elapsed, the echo sound spread distally, whereas in the controls no echo sound could be heard over the skin flap. There was significant difference statistically between the experimental and control groups in the temperature of the flaps while the flaps were being transferred (P lt; 0.01). The external diameters of the blood vessels in the central area of the skin flap were larger in the experimental group, 0.8 to l.2mm in comparison to 0.4mm.
Objective To summarize recent advances on preoperative staging strategies in rectal cancer. Methods Relevant references about preoperative staging strategies were collected and reviewed. The multimodal preoperative evaluation (MPE) system recently documented was focused on. Results The comparably accurate T and M stage could be achieved preoperatively by following an appropriate available method; however, the N stage’s accuracy was still not satisfying. The MPE system， incorporating with the advantages of transrectal ultrasound， computerized tomography and serum amyloid A protein in a multi-disciplinary mode could display the most accurate preoperative staging for rectal cancer currently. Conclusion The MPE has potential prospects in preoperative staging of rectal cancer， and can provide the most accurate preoperative staging for rectal cancer at present.
Abstract: Objective To investigate changes of left ventricularregional systolic function after surgical treatment of left ventricular aneurysm (LVA) by realtime threedimensional echocardiography (RT-3DE). Methods From February 2009 to February 2010, 14 consecutive patients who were diagnosed to have coronary artery diseases with LVA underwent surgical repair and coronary artery bypass grafting (LVA group) in our hospital. All patients of the LVA group were followed up for a mean period of 4 months. Twodimensional echocardiography (2DE) and RT-3DE were performed before operation and during the follow-up. Left ventricular regional ejection fraction (EF) was acquired by Qlab software analysis. At the same time, 12 healthy persons were included as controls (control group). Statistical analyses were carried out to compare left ventricular regional EF between the LVA group (before operation and 4 months after operation) and the control group. Results Contrary to the control group, preoperative regional EF of the LVA group increased from apex to base. In addition to the inferior basal segment, lateralinferior basal segment and anteriorinferior basal segment, regional EF in the remaining 14 segments were significantly lower than that of the control group (P＜0.05). At postoperative followup, regional EF recovered the increase from base to apex, and there was no significant difference between anteriorinferior segment and lateral segment regional EF of the LVA group and those of the control group (P＞0.05), while regional EF of other segments in the LVA group was lower than that in the control group (P＜0.05). Conclusion RT-3DE is an effective method to assess left ventricular regional systolic function in patients with LVA. After LVA repair and coronary artery bypass grafting, regional systolic function will restore to the normal direction of progressive increase, and some nonaneurysm segments systolic function will go back to normal.