Transvitreal Feeder Vessel Ligation and En Bloc Resection of a Retinal Capillary Hemangioblastoma

2022 ◽  
Author(s):  
Christina Y. Weng
Keyword(s):  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Feeder Vessel ◽  
Retinal Capillary ◽  
Retinal Capillary Hemangioblastoma ◽  
Vessel Ligation

En Bloc Resection of a Retinal Capillary Hemangioblastoma in a Young Female

Ophthalmology ◽  
2018 ◽  
Vol 125 (8) ◽  
pp. 1188
Author(s):  
Christina Y. Weng ◽  
Debra J. Shetlar ◽  
Bertha Beltran
Keyword(s):  
En Bloc Resection ◽  
Young Female ◽  
Bloc Resection ◽  
En Bloc ◽  
Retinal Capillary ◽  
Retinal Capillary Hemangioblastoma

Use of Intraoperative Indocyanine Green Angiography for Feeder Vessel Ligation and En Bloc Resection of Intramedullary Hemangioblastoma

2019 ◽  
Vol 17 (6) ◽  
pp. 573-579 ◽  
Author(s):  
Camilo A Molina ◽  
Zach Pennington ◽  
A Karim Ahmed ◽  
Erick Westbroek ◽  
Matthew L Goodwin ◽  
...  
Keyword(s):  
Blood Loss ◽  
Indocyanine Green ◽  
Fluorescent Dyes ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Vascular Tumors ◽  
Intraoperative Blood Loss ◽  
En Bloc ◽  
Feeder Vessel ◽  
Decrease Blood Loss

Abstract BACKGROUND As vascular tumors, intramedullary hemangioblastomas are associated with significant intraoperative blood loss, making them particularly challenging clinical entities. The use of intraoperative indocyanine green or other fluorescent dyes has previously been described to avoid breaching the tumor capsule, but improved surgical outcomes may result from identifying and ligating the feeder arteries and arterialized draining veins. OBJECTIVE To describe the use of combined preoperative angiography and intraoperative indocyanine green use for the identification of feeder arteries and arterialized draining veins to decrease blood loss in the resection of intramedullary hemangioblastomas. METHODS A patient with cervical myelopathy secondary to a large C3 hemangioblastoma and cervicothoracic syrinx underwent a C2-3 laminoplasty with resection of the lesion. To reduce intraoperative blood loss and facilitate safe lesion resection, the vascular architecture of the lesion was defined via preoperative digital subtraction angiography and intraoperative use of indocyanine green. The latter permitted ligation of the major and minor feeding arteries and arterialized veins prior to tumor breach, allowing for facile en bloc resection of the lesion. RESULTS The lesion was resected en bloc with minimal blood loss (approximately 100 mL) and without intraoperative neuromonitoring signal changes. The patient remained at neurological baseline throughout their stay. CONCLUSION We present a written and media illustration of a technique for intraoperative indocyanine green use in the en bloc resection of intramedullary hemangioblastoma.

scholarly journals Underwater endoscopic mucosal resection for en bloc resection of a neuroendocrine tumor in the duodenal bulb

Endoscopy ◽  
2021 ◽  
Author(s):  
Hugo Uchima ◽  
Alberto Diez-Caballero ◽  
Jaume Capdevila ◽  
Mercé Rosinach ◽  
Alfredo Mata ◽  
...  
Keyword(s):  
Neuroendocrine Tumor ◽  
Endoscopic Mucosal Resection ◽  
Duodenal Bulb ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Mucosal Resection

scholarly journals Fibrin glue: Novel submucosal injection agent for endoscopic submucosal dissection

2021 ◽  
Vol 09 (03) ◽  
pp. E319-E323
Author(s):  
Madoka Takao ◽  
Yoshitaka Takegawa ◽  
Toshitatsu Takao ◽  
Hiroya Sakaguchi ◽  
Yoshiko Nakano ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
Fibrin Glue ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Submucosal Injection ◽  
Submucosal Dissection ◽  
Vitro Model ◽  
Histopathologic Findings

Abstract Background and study aims Adequate mucosal elevation by submucosal injection is crucial for patient safety and efficiency during endoscopic submucosal dissection (ESD). This study aimed to evaluate the efficacy of fibrin glue (FG) as a long-lasting submucosal injection agent and to evaluate the technical feasibility of FG injection for ESD. Materials and methods To compare the capabilities of different agents in maintaining submucosal evaluation, we injected FG, hyaluronic acid solution, and normal saline into the porcine gastric specimen that was incised into approximately 5 × 5 cm squares. Then, we measured the height of submucosal elevations over time. Moreover, three hypothetical lesions from the resected porcine stomach underwent ESD with FG injection. Thereafter, we conducted macroscopic and histopathologic analyses. Results FG maintained the greatest submucosal elevation among all the injection agents. Three ESD procedures were performed with en bloc resection. Both macroscopic and histopathologic findings showed a thick FG clot on the ulcers. Conclusions The FG solution can be potentially used as an ESD submucosal injection agent in an in vitro model.

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