https://www.selleckchem.com/products/sc-43.html Phentolamine was more effective when injected into the AAI puncture site (mean resolution time 17 min) in comparison to injection as a digital block (74 min). CONCLUSION Phentolamine is the most effective method of reversing symptoms and treating ischaemic digits when compared to alternative therapies. Symptoms resolved much quicker when phentolamine was infiltrated into the site of injury compared to being infiltrated as a digital block. We propose a treatment algorithm for management of these injuries. Hand surgeons should be aware of AAI injuries and be able to advise on their management. Crown All rights reserved.INTRODUCTION Glioblastoma has a high mortality rate. Current treatment includes largest possible surgical resection of the tumour using neuronavigation and fluorescence to better identify tumour tissue. In recent years, sodium fluorescein has been reintroduced in neurosurgery as a fluorescence to increase the resection rate. In this study we aimed to measure the surgeons experience of using sodium fluorescein to locate and remove tumour tissue. Furthermore we describe a case of sodium fluorescein tissue distribution. MATERIAL AND METHODS 13 patients with glioblastoma and seven patients with cerebral metastases undergoing surgical resection were included. Surgery was performed using microscope alternating between white light and the YELLOW 560 filter, which visualized sodium fluorescein. Surgeons graded its usability in terms of location and removal on a scale from one to four. The resection rate was determined by neuroradiologists. Tissue samples obtained during surgery were analysed in relation to fluorescence and dysmorphic cells. RESULTS Surgeons reported high usability in terms of location and removal of tumours using sodium fluorescein with medians of four in all groups, except for sub-total resections which had a median of three. Surgical complications were minimal and both resection rate and surviva