The origin of blood supply and the features of vascular distribution of the fascia lata was obeervedby the method of microsurgical anatomy.It was found that there were 4 sources of the blood supplyfor the fascia lata. The blood vessels in the anterior supperior femoral area were from the original partof the decp femoral artery,while in the inferior part,the arteriess were from the tributary of theperforating artery. The blood vessels in the poterior superior femoral area were from both t...
Objective To study the characteristics of choroidal circulation in RP. Methods Using ICGA to obse rve 37 cases of RP and compare with healthy volunteers. Results ① The earliest fluorescein filling time of the choroidal arteries in RP group was (14.38plusmn;3.95) seconds,the choroidal veinous in RP group was (17.27plusmn;5.94) seconds,and there was no obvious difference between RP and control group.②The fluorescein failing time of choroidal vein in RP group was (475.75 plusmn;153.70)seconds.③The area of the bright fluorenscence in posterior fundus in RP group was (41.20plusmn;19.99) mm2,and compared with the control group,there was significant difference (P＜0.0001). ④In the mid to late phase during ICGA，in RP group the veillike hypofluorescence was found in 61 e yes (84.7%),plaque hyperfluorescence in posterior fundus in 21 eyes (29.2%),and leakage of heperfluorescence in 4 eyes(5.6%). Conclusion ①The perfusion pressure of choroidal vessels in RP reveals no c hange.②The blood volume of choroidal vessels becomes decreased in RP.③The choroidal capillaries become atrophic in RP.④Choroidal neovascularization may occur in patients with RP. (Chin J Ocul Fundus Dis, 2001,17:26-29)
PURPOSE:To observe the clinical features of the macular hemorrhage in myopes. METHOD:Twenty-four patients(30 eyes)with myopic macular hemorrhage were examined with slitlamp biomicroscopy,funduscope,A/B ultrasonography,and fundus fluorecein angiography(FFA). The patients were followed up for 3~18 months(average 12 months). RESULTS: Four of 26 eyes with macular hemorrhage examined with FFA were found to be due to choroidal neovaseulature,and they were associated with posterior staphyloma. The other 22 eyes without neovascular change were thought to be simple type,and 19 of them were associated with lacquer cracks. The hemorrhage in simple type cases deminished usually within 1~3 months. CONCLUSION:Myopic macular hemorrhagic eyes of neovascular type resulted usually in recurrent hemorrhage and worse prognosis in visual acuity than those of simple type. （Chin J Ocul Fundus Dis,1996,12: 220-222）
Purpose To discuss changes of macular choriocapillaris hemodynamics in AMD. Methods Eighty-six eyes of 86 patients underwent ICGA,including macular drusen in 15 eyes of 15 patients,exudative AMD in 52 eyes of 52 patients,atrophic AMD in 19 eyes of 19 patients,for the observation of macular choriocapillaris perfusion. Results Choriocapillaris filling phase (CFP) of exudative AMD was obviously longer than that of eyes with normal, atrophic AMD and drusen groups (P＜0.05). Forty eyes had local or extensive choroidal filling deficiency and prolongation, including 24 eyes of exudative AMD, 12 eyes of atrophic AMD,and 4 eyes of drusen group. Conclusion CFP of macula is prolonged and choriocapillaris perfusion is abnormal in AMD and macular drusen eyes. (Chin J Ocul Fundus Dis, 2002, 18: 116-118)
Objective To summarize the monitoring methods and preventions of the disorder of blood supplying of expanded flaps, so as to provide some references for improving the survival of expanded flaps. Methods The domestic and abroad related literature about the disorder of blood supplying of expanded flaps was reviewed and analyzed. Results Handheld Doppler, digital subtraction angiography, computer tomographic angiography, magnetic resonance angiography, and fluorescein angiography can be used as reliable preoperative imaging methods in designing expanded flaps with rich blood supply. Several techniques can be used for monitoring the blood supply of expanded flaps during the early postoperative period including traditional monitoring via physical examination, monitoring via dynamic infrared thermography, near-infrared spectroscopy tissue oximeter, external and implantable Doppler, and more recently developed diffuse correlation spectroscopy. Surgical delay, bloodletting, leech therapy, hyperbaric oxygen, and so on can decrease the risk of necrosis in expanded flaps. Conclusion The survival of expanded flap is influenced by many factors. Preoperative design by using handheld Doppler and new imaging technology and postoperative early detection of blood supply can provide references of timely intervention, so that ischemic necrosis of the flaps can be reduced, and the success rate of surgery can be improved.
Purpose To observe the changes of choroidal circulati on and the retinal lesions caused by ocular contusion with indocyanine green ang iography (ICGA). Methods ICGA examination was performed on 30 cases (30 eyes) of various traumatic condition in conjunction with fundus fluorescein angiography (FFA). Results FFA of 19 cases (63.3%) showed the hypofluorence in quadrant or whole disc in accordance with the area of delayed filling of choroid. Twentysix cases (86.2%) showed d efected choroidel perfusion in ICGA,among them 16 cases showed localized delayed perfusion, in which the shortest perfusion time was 1 min 50 s and the l ongest time was 5 min.43 s,and 10 patients showed localized perfusion defect,and reversed filling time of retinochoroid vessels in 6 patients. Five cases (16.6%) had delayed filling time in both choroidal and central retinal vessels . Damage of retinal pigment epithelium was found in the areas of choroidal abnor mal perfusion. Conclusion ICGA combined with simultane ously FFA, is valuable in evaluating blunt injury of the ocular fundus and ben eficial to its diagnosis and treatment. (Chin J Ocul Fundus Dis, 2001,17:122-124)
ObjectiveTo evaluate the value of real-time indocyanine green fluorescence imaging navigation (ICG-FIN) in laparoscopic rectal cancer surgery. MethodsThe patients who adopted ICG-FIN during laparoscopic rectal cancer surgery in the Department of Anorectal Surgery of Xuzhou Central Hospital from April 2022 to June 2023 according to the inclusion and exclusion criteria (ICG-FIN group) were collected, meanwhile matching (1∶1) of patients who did not adopt ICG-FIN during laparoscopic surgery from January 2021 to May 2022 (control group). The general data, surgical conditions, intraoperative and postoperative outcomes between the two groups were compared. ResultsThere were 62 patients in the ICG-FIN group and 62 patients in the control group. There were no statistical differences in the gender, age, body mass index, comorbidities, and so on between the two groups (P>0.05). The tumor localization, lymph node tracing, fluorescence imaging of the intended resection of intestinal tract and anastomotic site were observed in the ICG-FIN group. Seven patients (11.3%) had changed in the intended resection of intestinal anastomotic line during surgery, while there were no changes of the surgical plan in the control group. There were no statistical differences (P>0.05) in terms of surgical method, operative time, intraoperative bleeding, proportion of ileostomy, time of the first postoperative exhaust, postoperative hospital stay, and incidence of short-term complications between the two groups. Compared with the control group, the incidence of anastomotic leakage was lower (P=0.012), and the number of lymph nodes cleaned was more (P=0.016) in the ICG-FIN group. However, there was no statistical difference in the number of positive lymph nodes detected between the two groups (P=0.343). ConclusionsAccording to the results of this study, ICG-FIN is a reliable and effective method during laparoscopic rectal cancer surgery, which can accurately localize tumor, trace and guide lymph node dissection. Real-time evaluation of intestinal blood flow perfusion is of great practical value in reducing anastomotic leakage.
ObjectiveTo understand the methods of judging the blood supply of parathyroid during thyroidectomy at home and abroad in recent years. MethodThe literature on parathyroid blood supply was collected, the research progress was reviewed, and the advantages and disadvantages of related methods were analyzed. ResultsIn recent years, near-infrared fluorescence, laser speckle contrast imaging and other technologies had been applied. They showed better advantages as compared with naked eye observation. The research on parathyroid blood supply at home and abroad was still in its infancy, and more clinical samples and related equipment optimization were still needed. ConclusionFluorescence imaging technology has a certain auxiliary role in the judgment of intraoperative parathyroid blood supply and can reduce the incidence of hypoparathyroidism to a certain extent.
OBJECTIVE :To investigate ocular vessel flow velocity in normal eyes by color Doppler imaging(CDI). METHODS: Ninety people (180 normal eyes)had flow velocity measured by CDI in three vessels,ophthalmic artery (OA),central retinal artery(CRA) and posterior ciliary artery (PCA),and the relations between velocity and affecting factors were analysed. RESULT: The diastolic and systolic velocity of OA,CRA and PCA were (31.7plusmn;10.9)cm/s, (7.2plusmn;2.6)cm/,s, (10.2plusmn;3.4)cm/s, (2.8plusmn;1.2)cm/s and (11.3plusmn;3.6)cm/s, (3.2plusmn;1.4)cm/s respectively. The velocity of OA had possitive correl-ativity with RBC,HCT and negative correlativity with age,while it revealed no relationship with sex, laterality of right or left eye,and normal IOP. CDI of ocular vessels in normal eyes is a triangle with three peaks and double sunkens in its frenquency spectum, revealed highly resistant,and both the pulsatility and resistive indexes were relatively high. The width of each frequency band basically was the same,and there was no obvious frequency window. CONCLUSION: The ocular application of CDI might lay the foundation of a comparatively comprehensive knowledge of the ocular hemodynamics. （Chin J Ocul Fundus Dis,1997,13: 99-101）
Objective To evaluate the effects of cold provoca tion on optic dise blood flow and retinal light sensitivity of primary open-angle glaucoma (POAG) patients,and explore the relationship between the changes of optic disc blood flow and retin al light sensitivity. Methods A total 33 POAG patients (33 eyes)and 13 normal controls (13 eyes) were tested by usin g th e Heidelberg retinal flowmetry (HRF) and Topcon automatic perimeter,and the optic disc blood flow and retinal light sensitivity of POAG patients and normal cont rols were measured at normal conditions and after cold provocation. Results The mean optic disc blood flow,volume and the mean retinal light sensitivity of POAG patients decreased significantly (Plt;0.05) after cold provocation.There was a linear and significant relationsh ip between the decrease of mean optic disc blood flow and mean retinal light sen sitivity of POAG patients (r=0.615,P＜0.001). The optic disc blood flow of POAG patients with a history of migraine were more likely to r educe in response to cold provocation and reduced much more than those without such history (Plt;0.05). Conclusion Cold provocation can significantly reduce both the optic disc blood flow and retinal light sensitivity in POAG patients.A close correlation was fo und between the amount of mean optic disc blood flow decrease and the volume of mean retinal light sensitivity decline. (Chin J Ocul Fundus Dis, 2001,17:37-40)