Www panfu com br trial#

However, only a few studies have tried to optimize the dose and timing of administration. However, among the published studies, the dosage and timing of ICG administration widely varied for instance, various studies used 2.5В mg administered within 0.5В h or 1В h prior to surgery, 12.5В mg administered within 0.5В h prior to surgery, and 0.05В mg/kg administered within 1В h prior to surgery. The optimal signal would involve a high fluorescence signal in bile ducts and a low fluorescence signal from the liver tissue in the background (Fig. In contrast, if fluorescence imaging is performed too long after the administration of ICG, the fluorescence intensity (FI) of the common bile duct (CBD) and liver will be so low that it cannot be conducive to identifying anatomical structures (Fig. The dose and dosing time of ICG are key factors that affect the performance of high-quality fluorescence imaging because if fluorescence imaging is performed directly after the administration of ICG, the liver will be highly fluorescent while bile ducts will not yet contain enough ICG (Fig.

There is no doubt that high-quality fluorescence imaging can help surgeons identify the anatomy of the extrahepatic biliary tract. The optimal effect of FC can be achieved by performing 10В mg ICG injections 10 to 12В h prior to surgery. ICG FC enables the real-time identification of extrahepatic bile ducts.

Further analysis with the Bonferroni method revealed the following: (1) the FI of the CBD in the 8В h group was significantly different from that in the 14В h group (adjusted pвЂ‰<вЂ‰0.001) (2) the liver FI of the 8В h group was higher than that of the 10В h group (adjusted pвЂ‰=вЂ‰0.042) and the 14В h group (adjusted pвЂ‰<вЂ‰0.001) and (3) the CBD-to-liver contrast of the 8В h group was lower than that of the 10В h group (adjusted pвЂ‰=вЂ‰0.013) and the 14В h group (adjusted pвЂ‰=вЂ‰0.001). The distribution of bile duct FI ( pвЂ‰=вЂ‰0.001), liver FI ( pвЂ‰<вЂ‰0.001), and common bile duct (CBD)-to-liver contrast ( pвЂ‰=вЂ‰0.001) were not the same in each group. In the second part of the experiment, 4 groups of patients (6 patients per group) were injected with 10В mg ICG at 8, 10, 12 and 14В h prior to surgery. Bile collected 8В h after ICG injection had a higher FI than bile collected at other time points ( pвЂ‰<вЂ‰0.05), and the FI of bile collected 20В h after ICG injection was nearly zero. Five patients were included in the first part of the study.

Www panfu com br trial#

ResultsДЄfter performing a systematic review, the ICG injection dose for each patient in the clinical trial was 10В mg. During surgery, imaging data were collected for analysis. In addition, the results of the first experiment were used to setup a randomized controlled trial (RCT) that aimed to find the optimal dosing timing for ICG injections for laparoscopic cholecystectomy (LC). After the patient was injected with ICG, bile was collected at 10 time points to explore the change and trends of bile fluorescence intensity (FI).

The first part included patients with T tubes for more than 1В month. To optimize the dosing time of ICG, a clinical trial was designed with two parts. PubMed was searched to determine the optimal dose. The purpose of this prospective, randomized, exploratory clinical trial was to optimize the dose and dosing time of ICG.

The dose and dosing time of indocyanine green (ICG) vary among fluorescence cholangiography (FC) studies.