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.
Objective To summarize the preoperative CT three-dimensional reconstruction, and administration and visualization of indocyanine green (ICG) during ICG-assisted laparoscopic duodenum-preserving pancreatic head resection (LDPPHR). Methods A 56-year-old female patient admitted to the Department of Biliary Surgery in West China Hospital in April 2022 was retrospectively analyzed. The patient was considered the possibility of benign tumor of pancreatic head, and underwent LDPPHR. Three-dimensional CT reconstruction was performed before operation, and ICG (5 mg) was injected intravenously preoperative and intraoperative to complete LDPPHR. Results Preoperative three-dimensional CT reconstruction can assist in judging the course and relationship of anterior and posterior pancreaticoduodenal arterial arch and surrounding main blood vessels. After intravenous injection of 5 mg ICG 24 hours before operation, the common bile duct at the upper edge of pancreas was clearly visualized, and the cystic mass was judged not to communicate with bile duct and pancreatic duct. But it was difficult to identify the pancreatic segment of the common bile duct in fluorescence mode, ICG 5 mg was injected intravenously during the resection stage, and then the common bile duct was obviously visualized. After the resection stage, injected ICG (5 mg) intravenously again. Within 1 min, the fluorescence of the duodenum was enhanced, which suggested that the blood perfusion of duodenum was well. The operative time was 280 min, the blood loss was about 200 mL. On the 10th day after operation, the patient developed transient gastrointestinal bleeding with bile leakage, which improved after symptomatic treatment and was discharged on the 19th day. Postoperative pathological examination diagnosed pancreatic serous cystadenoma. Conclusions Three-dimensional reconstruction and ICG assisted LPDDHR can successfully visualize and identify the blood vessels and bile ducts, and check the duodenal blood perfusion. Which can making the operation more accurate and visual is a powerful guarantee for LDPPHR to be carried out safely and effectively.
ObjectiveTo investigate the clinical feasibility and value of laparoscopic precise segment Ⅳ hepatectomy by guiding of indocyanine green (ICG) fluorescence imaging via ligamenta teres hepatis. MethodThe clinicopathologic data of patients with liver cancer treated in the Department of Liver Surgery of West China Hospital of Sichuan University from January 2017 to December 2021 who underwent precise segment Ⅳ hepatectomy by the guidance of ICG fluorescence imaging through the ligamenta teres hepatis were collected retrospectively. ResultsA total of 6 patients were collected, including 5 males and 1 female. The age ranged from 42 to 78 years. All 6 patients were successfully completed using laparoscopic precise segment Ⅳ hepatectomy by guiding of ICG fluorescence imaging via ligamenta teres hepatis. The operation time was (200±30) min, the intraoperative bleeding was (100±20) mL, and there were no intraoperative blood transfusion, postoperative liver failure, postoperative pneumonia, incision infection, bile leakage, postoperative bleeding, and other complications. The postoperative hospital stay was (7±2) d. One patient with positive microvascular invasion was found after operation and recurred at 38 months after operation, then treated by radiofrequency ablation and didn’t recur. No patient died during the follow-up period in 6 patients. ConclusionFrom results of limited cases in this study, laparoscopic precise segment Ⅳ hepatectomy by guiding of ICG fluorescence imaging via ligamenta teres hepatis is safe, feasible, and effective.
Objective To investigate the value of retention rate of indocyanine green at fifteen minutes (ICGR15) during hemihepatectomy for evaluation of residual liver reserve function in patients with primary liver carcinoma. Methods During hemihepatectomy, ICGR15 was tested in 44 patients after the hepatic artery and portal vein of resected side were ligated. Child-Pugh score, Child-Pugh classification, and MELD score before operation were tested. After operation, the liver function condition was estimated. Results The incidence of liver dysfunction was significantly lower in ICGR15lt;10% group (17.9%, 5/28) than that in 10%~15% group (75.0%, 12/16), Plt;0.05. There was no significant difference of Child-Pugh score among normal liver function group, mild insufficiency of liver function group, and severe insufficiency of liver function group （Pgt;0.05）. ICGR15 and MELD score in normal liver function group were statistical lower than those in mild insufficiency of liver function group and severe insufficiency of liver function group (Plt;0.05). ICGR15 was significantly lower in Child-Pugh A group than that in Child-Pugh B group (Plt;0.05). Conclusion Intraoperative residual liver ICGR15 may be more precisely compared with Child-Pugh score in evaluation liver reserve function for the patients with primary liver carcinoma and can help to guide liver resection.
ObjectiveTo investigate the clinical value of three-dimensional reconstruction of liver and resection of hepatocellular carcinoma with indocyanine green (ICG) fluorescence staining. MethodsClinical data of a patient with hepatocellular carcinoma admitted to the Department of Liver Surgery of West China Hospital of Sichuan University in May 2021 were retrospectively collected. In this patient, intrahepatic vascular reconstruction was performed by SYNAPSE 3D software of Japan before operation, and the portal vein and hepatic vein corresponding to the tumor were analyzed to simulate the resection range. Intraoperative ICG fluorescence staining was used to perform laparoscopic resection of segment Ⅳ of the liver.ResultsIn this patient, the fluorescence boundary on the liver surface was clear after staining, and the intrahepatic segment fluorescence interface could still be maintained in the hepatic parenchyma dissociation, and the resection of the liver segment was consistent with the preoperative three-dimensional reconstruction plan. The operation took 230 min in total, and the bleeding was about 200 mL. On the first day after the operation, blood biochemical test showed that the plasma albumin was slightly low, and no obvious abnormalities were observed in transaminase, bilirubin, etc. After the infusion of human albumin, the indexes returned to normal, and the patient recovered and was discharged on the fourth day after the operation. No complications occurred after the operation, and no tumor recurrence and metastasis were observed during follow-up period. Conclusion3D reconstruction and ICG fluorescence guidance are safe and feasible for the treatment of hepatocellular carcinoma after laparoscopic anatomic segment Ⅳ resection, and the positive staining method of ICG fluorescence segment is recommended.
ObjectiveTo investigate the influencing factors of flap-related complications and the economic benefits of intraoperative indocyanine green (ICG) angiography in the patients undergoing autologous breast reconstruction.MethodsBetween July 2013 and June 2018, the clinical data of 150 patients (152 breasts) who met the selection criteria after autologous breast reconstruction were analyzed retrospectively. Ten factors including age, body mass index, preoperative neoadjuvant chemotherapy (NC), chest radiation history, diabetes, abdominal operation history, chest wall reconstruction, reconstruction timing, flap type, intraoperative ICG angiography were analyzed by univariate analysis. Significant variables found in univariate analysis were used to perform backward multivariate logistic regression of flap related complications and local necrosis. According to the above multi factor analysis results, the patients were divided into 4 groups: ICG+NC group (group A), ICG+non-NC group (group B), non-ICG+NC group (group C), non-ICG+non-NC group (group D). The average extra costs of surgical treatment (including ICG imaging cost+cost of handling flap related complications) of each group was calculated.ResultsAll the 152 flaps survived. There were 33 flap-related complications, including 22 regional necrosis, 9 regional infection, 5 hematoma, 5 simple fat liquefaction, and 2 anasto-motic thrombosis. Univariate analysis showed that preoperative NC, flap type, and intraoperative ICG angiography had significant influence on the incidence of flap-related complications (P<0.05). Multivariate analysis showed that preoperative NC and non-ICG angiography were the risk factors of flap-related complications (P<0.05), and also the risk factors of regional flap necrosis (P<0.05). For patients who had NC, intraoperative ICG angiography could greatly save the average extra costs. The average extra costs in group A was 1 378 yuan less than that in group C. For the patients without NC, intraoperative ICG angiography would increase the average extra costs, which was 747 yuan in group B more than that in group D.ConclusionIn autologous breast reconstruction, ICG angiography can reduce the incidence of flap-related complications, especially the incidence of regional flap necrosis, while NC is the opposite. For patients without NC, ICG angiography is not cost-effective but still can be used if conditions permit. However, for those with NC, ICG angiography is cost-effective and recommended.
Objective To observe the location of the watershed zones of the choroidal blood supply relative to the optic disc in glaucoma by indocyan ine green angiography, and to investigate the mechanisms in the development of glaucomatous neuropathy. Method Simultaneous ICGA and FFA were performed on 31 eyes of 31 patients with glaucoma (17 of POAG, 14 of NTG) and 37 eyes of 37 control subjects. The watershed zones were classified into three types according to their location relative to the optic disc: by type I, no water shedzone around the optic disc; type II, the optic disc surrounded partially by watershed zone; type III, the optic disc surrounded completely by watershed zone. Each of the watershed zone types was scored (i.e., type I=1, type II=2, type III=3). Results In 87.1% of the glaucomatous eyes , the watershed zones included or partially included the optic disc. However, the figure in the control group was 56.8%. The glaucoma group had a higher score of watershed zone type than the control group. Conclusions The mechanisms in the development of glaucomatous neuropathy are correlative to the choroidal blood supply around the optic disc. (Chin J Ocul Fundus Dis，2004，20：218-220)
Objective To investigate the value of indocyanine green fluorescence imaging in common bile duct reexploration. Methods The clinical data of 32 patients who underwent open common bile duct reexploration in the Affiliated Hospital of Southwest Medical University from January 2018 to December 2020 were collected retrospectively. All patients divided into the control group (conventional exploration group, 20 patients) and the fluorescence imaging group (using indocyanine green fluorescence imaging, 12 patients) according to the operational manner. The intraoperative and postoperative results of two groups were analyzed. Results The operative time [(165.2±6.9) min vs. (130.8±5.5) min], the time to find extrahepatic bile duct [(43.9±3.8) min vs. (23.1±4.1) min] and the amount of bleeding [(207.7±7.7) mL vs. (127.5±15.3) mL] in the control group were longer or more than those in the fluorescence imaging group (P<0.05). The incidence of postoperative infection in the control group [7 cases (35.0%) vs. 0 cases (0.0%)] and the length of hospital stay [(10.8±2.8) d vs. (7.1±1.3) d] were higher or longer than those in the fluorescence imaging group (P<0.05). There were no significant difference between the two groups in the incidence of postoperative bile fistula [6 cases (30.0%) vs. 2 cases (16.7%)] and the incidence of residual stones [3 cases (15.0%) vs. 3 cases (25.0%), P＞0.05]. Conclusion Indocyanine green fluorescence imaging appears to be a feasible, expeditious, useful, and effective imaging method while performing reexploration.
ObjectiveTo analyze the effect of indocyanine green (ICG) fluorescence dual-visualization technique on evaluating tumor margins during the thoracoscopic segmentectomy. MethodsA total of 36 patients who underwent thoracoscopic anatomical segmentectomy using ICG fluorescence dual-visualization technique in our hospital from December 2020 to June 2021 were retrospectively included. There were 15 males and 21 females aged from 20 to 69 years. The clinical data of the patients were retrospectively analyzed. ResultsThe ICG fluorescence dual-visualization technique clearly showed the position of lung nodules and the plane boundary line between segments during the operation. There was no ICG-related complication. The average operation time was 98.6±21.3 min, and the average intraoperative bleeding amount was 47.1±35.3 mL, the average postoperative drainage tube placement time was 3.3±2.8 d, the average postoperative hospital stay was 5.4±1.8 d, and the average tumor resection distance was 2.6±0.7 cm. There was no perioperative period death, and one patient suffered a persistent postoperative air leak. ConclusionThe ICG fluorescence dual-visualization technique is safe and feasible for evaluating the tumor margins during thoracoscopic segmentectomy. It simplifies the surgical procedure, shortens the operation time, ensures sufficient tumor margins, and reserves healthy pulmonary parenchyma to the utmost extent, providing reliable technical support for thoracoscopic anatomical segmentectomy.
Objective To explore the feasibility and accuracy of using indocyanine green fluorescence (ICGF) to identify the intersegmental plane after ligation of the target pulmonary vein during thoracoscopic segmentectomy. Methods From December 2022 to June 2023, the patients with pulmonary nodules undergoing video-assisted thoracoscopic anatomical segmentectomy with intersegmental plane displayed using ICGF after ligation of the target pulmonary vein by the same medical team in our hospital were collected. Preoperative three-dimensional reconstruction was used to identify the target segment where the pulmonary nodule was located and the anatomical structure of the arteries, veins, and bronchi in the target segment. The intersegmental plane was first determined by the inflation-deflation method after the target pulmonary vein was ligated during the operation. During the waiting period, the target artery and bronchus could be separated but not cut off. The inflation-deflation boundary was marked by electrocoagulation, and then ICGF was injected via peripheral vein to identify the intersegmental plane again, and the consistency of the two intersegmental planes was finally evaluated. Results Finally 32 patients were collected, including 14 males and 18 females, with an average age of 58.69±11.84 years, ranging from 25 to 76 years. The intersegmental plane determined by inflation-deflation method was basically consistent with ICGF method in all patients. All the 32 patients successfully completed uniportal thoracoscopic segmentectomy without ICGF-related complications or perioperative death. The average operation time was 98.59±20.72 min, the average intraoperative blood loss was 45.31±35.65 mL, and the average postoperative chest tube duration was 3.50±1.16 days. The average postoperative hospital stay was 4.66±1.29 days, and the average tumor margin width was 26.96±5.86 mm. Conclusion The ICGF can safely and accurately identify the intersegmental plane by target pulmonary venous preferential ligation in thoracoscopic segmentectomy, which is a useful exploration and important supplement to the simplified thoracoscopic anatomical segmentectomy.