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Indocyanine green

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https://www.readbyqxmd.com/read/29352217/bedside-assessment-of-regional-cerebral-perfusion-using-near-infrared-spectroscopy-and-indocyanine-green-in-patients-with-atherosclerotic-occlusive-disease
#1
Hiroshi Saito, Tatsuya Ishikawa, Jun Tanabe, Shinya Kobayashi, Junta Moroi
This pilot study aimed to investigate the utility of near-infrared spectroscopy/indocyanine green (NIRS/ICG) for examining patients with occlusive cerebrovascular disease. Twenty-nine patients with chronic-stage atherosclerotic occlusive cerebrovascular disease were included. The patients were monitored using NIRS at the bedside. Using ICG time-intensity curves, the affected-to-unaffected side ratios were calculated for several parameters, including the maximum ICG concentration (ΔICGmax), time to peak (TTP), rise time (RT), and blood flow index (BFI = ΔICGmax/RT), and were compared to the affected-to-unaffected side ratios of the regional cerebral blood flow (rCBF) and regional oxygen extraction fraction (rOEF) obtained using positron emission tomography with 15O-labeled gas...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29350605/in-situ-administration-of-abciximab-for-thrombus-resolution-during-intracranial-bypass-surgery-case-report
#2
Ian A Buchanan, Brian Lee, Arun P Amar, Steven L Giannotta
Abciximab is a glycoprotein IIb/IIIa receptor antagonist that functions to prevent platelet aggregation, thus reducing thrombus initiation and propagation. It has been widely used during percutaneous endovascular interventions, such as aneurysm coil embolization, angioplasty, atherectomy, and stent placement, as both a preventative and a salvage therapy. The use of abciximab in cardiac and neurosurgical procedures has been associated with a reduced incidence of ischemic complications and a decreased need for repeated intervention...
January 19, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29346242/prevalence-and-clinical-characteristics-of-pachydrusen-in-polypoidal-choroidal-vasculopathy-multimodal-image-study
#3
Junwon Lee, Suk Ho Byeon
PURPOSE: To investigate the prevalence of a newly defined drusen type, pachydrusen, soft drusen, and subretinal drusenoid deposits in eyes with polypoidal choroidal vasculopathy and fellow eyes and the relationship between each drusen type and the choroidal thickness, vascular morphology, and hyperpermeability. METHODS: The 169 eyes of 90 patients with polypoidal choroidal vasculopathy were retrospectively reviewed. The prevalence of each drusen type was evaluated using color fundus photography and optical coherence tomography...
January 16, 2018: Retina
https://www.readbyqxmd.com/read/29346241/chronic-central-serous-chorioretinopathy-early-and-late-morphological-and-functional-changes-after-verteporfin-photodynamic-therapy
#4
Pierluigi Iacono, Massimiliano Tedeschi, Barbara Boccassini, Adele Chiaravalloti, Monica Varano, Mariacristina Parravano
PURPOSE: To describe early and late morphological and functional changes in subjects receiving photodynamic therapy (PDT) for chronic central serous chorioretinopathy. METHODS: Patients with chronic central serous chorioretinopathy were prospectively enrolled and received standard PDT. At the baseline examination, each subject underwent complete ophthalmological examination, including best-corrected visual acuity (BCVA) assessment, fluorescein angiography and indocyanine green angiography, spectral domain optical coherence tomography, and microperimetry...
January 16, 2018: Retina
https://www.readbyqxmd.com/read/29344784/the-feasibility-and-efficacy-of-pure-laparoscopic-repeat-hepatectomy
#5
Yusuke Ome, Kazuki Hashida, Mitsuru Yokota, Yoshio Nagahisa, Kazushige Yamaguchi, Michio Okabe, Kazuyuki Kawamoto
BACKGROUND: Repeat hepatectomy is often required for hepatocellular carcinoma and metastatic tumors. However, this procedure is technically challenging, so laparoscopic repeat hepatectomy (LRH) has not been widely adopted. The aim of this study was to evaluate the feasibility and efficacy of LRH compared with open repeat hepatectomy (ORH) and laparoscopic primary hepatectomy (LPH). METHODS: We introduced laparoscopic hepatectomy at our institution in April 2014...
January 17, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29344519/icg-clearance-test-and-99mtc-gsa-spect-ct-fusion-images
#6
REVIEW
Yuji Iimuro
Preoperative estimation of future remnant liver function is critical for major hepatic surgery to avoid postoperative morbidity and mortality. Among several liver function tests, the indocyanine green (ICG) clearance test is still the most popular dynamic method. The usefulness of ICG clearance test parameters, such as ICGR15, KICG, or PDRICG, has been reported by many investigators. The transcutaneous non-invasive pulse dye densitometry system has made the ICG clearance test more convenient and attractive, even in Western countries...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344518/current-modalities-for-the-assessment-of-future-remnant-liver-function
#7
REVIEW
Fadi Rassam, Pim B Olthof, Roelof J Bennink, Thomas M van Gulik
While imaging studies such as computed tomography or magnetic resonance imaging allow the volumetric assessment of the liver segments, only indirect information is provided concerning the quality of the liver parenchyma and its actual functional capacity. Assessment of liver function is therefore crucial in the preoperative workup of patients who require extensive liver resection and in whom portal vein embolization is considered. This review deals with the modalities currently available for the measurement of liver function...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29342012/diffuse-chorioretinopathy-without-serous-detachment-associated-with-cardiac-transplantation
#8
Michael F Marmor
PURPOSE: To analyze an unusual case of widespread chorioretinopathy after cardiac transplantation for its potential etiology and clinical significance. METHODS: Clinical examinations included widefield and macular color and fundus autofluorescence photography, spectral domain optical coherence tomography, fluorescein angiography and indocyanine green angiography, full-field electroretinography, and Goldmann visual fields. PATIENT: A 44-year-old Hispanic woman was referred to rule out retinitis pigmentosa...
January 16, 2018: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29340728/indocyanine-green-retention-rates-at-15%C3%A2-min-predicted-hepatic-decompensation-in-a-western-population
#9
Bertrand Le Roy, Emilie Grégoire, Cyril Cossé, Badr Serji, Nicolas Golse, René Adam, Daniel Cherqui, Jean-Yves Mabrut, Yves-Patrice Le Treut, Eric Vibert
BACKGROUND: ICGR15 is widely used in Asia to evaluate the liver reserve before hepatectomy, but not in Western countries where patients are selected using the MELD score and/or platelet count. Postoperative liver failure is rare nowadays, but hepatic decompensation (HD), defined by 3-month postoperative ascites, impairs quality of life and survival. The aim of this study was to evaluate the relevance of indocyanine green retention rate at 15 min (ICGR15) before liver resection in Western countries, in order to predict HD...
January 16, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29339651/albumin-indocyanine-green-evaluation-grading-system-predicts-post-hepatectomy-liver-failure-for-biliary-tract-cancer
#10
Yoshihiro Miyazaki, Takashi Kokudo, Katsumi Amikura, Amane Takahashi, Nobuhiro Ohkohchi, Hirohiko Sakamoto
BACKGROUND: In biliary tract cancer treatment, a precise preoperative evaluation of the patient's liver function is essential to avoid post-hepatectomy liver failure (PHLF) and mortality. The present study aimed to evaluate the role of the Albumin-Indocyanine Green Evaluation (ALICE) grading system in predicting PHLF in biliary tract cancer patients. METHODS: Data from 166 patients who underwent hepatectomy for biliary tract cancer between 2000 and 2016 were retrospectively analyzed...
January 16, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29339226/model-and-methods-to-assess-hepatic-function-from-indocyanine-green-fluorescence-dynamical-measurements-of-liver-tissue
#11
Chloe Audebert, Irene E Vignon-Clementel
The indocyanine green (ICG) clearance, presented as plasma disappearance rate is, presently, a reliable method to estimate the hepatic "function". However, this technique is not instantaneously available and thus cannot been used intra-operatively (during liver surgery). Near-infrared spectroscopy enables to assess hepatic ICG concentration over time in the liver tissue. This article proposes to extract more information from the liver intensity dynamics by interpreting it through a dedicated pharmacokinetics model...
January 12, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29339061/dose-dependent-photochemical-photothermal-toxicity-of-indocyanine-green-based-therapy-on-three-different-cancer-cell-lines
#12
Mustafa Kemal Ruhi, Ayşe Ak Can, Murat Gülsoy
The Food and Drug Administration-approved Indocyanine Green can be used as a photosensitizer to kill cancer cells selectively. Although indocyanine green is advantageous as a photosensitizer in terms of strong absorption in the near-infrared region, indocyanine green-based cancer treatment is still not approved as a clinical method. Some reasons for this are aggregation at high concentrations, rapid clearance of the photosensitizer from the body, low singlet oxygen quantum yield, and the uncertainty concerning its action mechanism...
January 12, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29338879/identifying-lost-surgical-needles-with-visible-and-near-infrared-fluorescent-light-emitting-microscale-coating
#13
Erin P Ward, Jian Yang, Jonathan C Delong, Tsai-Wen Sung, James Wang, Chris Barback, Natalie Mendez, Santiago Horgan, William Trogler, Andrew C Kummel, Sarah L Blair
BACKGROUND: Retained foreign bodies (RFOs) have substantial clinical and financial consequences. In laparoscopic surgery, RFOs can be a cause of needing to convert a minimally invasive surgery (MIS) procedure to an open operation. A coating for surgical models was developed to augment localization of needles using fluorescence appropriate for open and minimally invasive surgeries procedures. METHODS: An epoxy matrix containing both dansyl chloride and indocyanine green was coated as visible and near infrared labels, respectively...
January 12, 2018: Surgery
https://www.readbyqxmd.com/read/29338554/site-specific-evaluation-of-lymphatic-vessel-sclerosis-in-lower-limb-lymphedema-patients
#14
Makoto Mihara, Hisako Hara, Yoshihisa Kawakami, Han Peng Zhou, Shuichi Tange, Kazuki Kikuchi, Takuya Iida
BACKGROUND: Histological changes in the collecting lymphatics in patients with lymphedema are classified as Normal type, Ectasis type, Contraction type, and Sclerosis type (NECST) classification. In this study, we investigated the condition of the lymphatic vessels in different sites of the legs. PATIENTS AND METHODS: We prospectively investigated the lymphatic vessels of patients with lymphedema who underwent lymphaticovenous anastomosis (LVA) from August 8, 2014 to August 4, 2015 based on the NECST classification...
January 17, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29337533/localized-fe-ii-induced-cytotoxic-reactive-oxygen-species-generating-nano-system-for-enhanced-anticancer-therapy
#15
Yuxue Ding, Jiaxun Wan, Zihao Zhang, Fang Wang, Jia Guo, Changchun Wang
The anticancer therapy on basis of reactive oxygen species (ROS)-mediated cellular apoptosis has achieved great progress. However, this kind of theraputic strategy still faces some challenges such as light, photosensitizer and oxygen (O2) dependence. In this article, a ROS-mediated anticancer therapy independent of light, photosensitizer and oxygen was established based on a Fe2+-induced ROS-generating nano-system. First, artemisinin (ART) was loaded in porous magnetic supraparticles (MSP) by a nano-deposition method...
January 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29334573/-a-fresh-cadaver-study-on-indocyanine-green-fluorescence-lymphography-a-new-whole-body-imaging-technique-for-investigating-the-superficial-lymphatics
#16
Akira Shinaoka, Seijiro Koshimune, Kiyoshi Yamada, Kanae Kumagishi, Hiroo Suami, Yoshihiro Kimata, Aiji Ohtsuka
BACKGROUND: Identification of the lymphatic system in cadavers is painstaking because lymphatic vessels have very thin walls and are transparent. Selection of appropriate contrast agents is a key factor for successfully visualizing the lymphatics. In this study, we introduce a new imaging technique of lymphatic mapping in whole body of fresh cadavers. METHODS: Ten fresh human cadavers were used for this study. We injected 0.1 mL of indocyanine green fluorescence (ICG) solution subcutaneously at multiple spots along the watershed lines between lymphatic territories and hand and foot regions...
January 10, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29332090/impaired-value-of-99m-tc-gsa-scintigraphy-as-an-independent-risk-factor-for-posthepatectomy-liver-failure-in-patients-with-hepatocellular-carcinoma
#17
Ikuo Nakamura, Yuji Iimuro, Seikan Hai, Yuichi Kondo, Etsuro Hatano, Jiro Fujimoto
BACKGROUND: Posthepatectomy liver failure (PHLF) was recently defined with the corresponding recommendations as follows: grade A, no change in clinical management; grade B, clinical management with noninvasive treatment; and grade C, clinical management with invasive treatment. In this study, we identified the risk factors for grade B and C PHLF in patients with hepatocellular carcinoma (HCC). METHODS: Of 339 HCC patients who underwent curative hepatic resection, 218 were included for analysis...
January 12, 2018: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/29329549/near-infrared-dye-marking-for-thoracoscopic-resection-of-small-sized-pulmonary-nodules-comparison-of-percutaneous-and-bronchoscopic-injection-techniques
#18
Takashi Anayama, Kentaro Hirohashi, Ryohei Miyazaki, Hironobu Okada, Nobutaka Kawamoto, Marino Yamamoto, Takayuki Sato, Kazumasa Orihashi
BACKGROUND: Minimally invasive video-assisted thoracoscopic surgery for small-sized pulmonary nodules is challenging, and image-guided preoperative localisation is required. Near-infrared indocyanine green fluorescence is capable of deep tissue penetration and can be distinguished regardless of the background colour of the lung; thus, indocyanine green has great potential for use as a near-infrared fluorescent marker in video-assisted thoracoscopic surgery. METHODS: Thirty-seven patients with small-sized pulmonary nodules, who were scheduled to undergo video-assisted thoracoscopic wedge resection, were enrolled in this study...
January 12, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29326855/all-types-of-age-related-macular-degeneration-in-one-patient
#19
Zafer Cebeci, Nur Kır
Herein, we describe a neovascular age-related macular degeneration patient with retinal angiomatous proliferation (RAP) and polypoidal choroidal vasculopathy (PCV) coexisting in the same eye at the time of diagnosis. A 55-year-old woman presented with a history of decreased vision in her left eye. Fundoscopy, fluorescein and indocyanine green angiography, and optical coherence tomography imaging revealed RAP and PCV lesions in her left eye at first diagnosis. The patient received intravitreal ranibizumab therapy but developed tachyphylaxis after the first dose despite having three monthly doses...
December 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29325740/indocyanine-green-loaded-hyaluronan-derived-nanoparticles-for-fluorescence-enhanced-surgical-imaging-of-pancreatic-cancer
#20
Bowen Qi, Ayrianne J Crawford, Nicholas E Wojtynek, Megan B Holmes, Joshua J Souchek, Graca Almeida-Porada, Quan P Ly, Samuel M Cohen, Michael A Hollingsworth, Aaron M Mohs
Pancreatic ductal adenocarcinoma is highly lethal and surgical resection is the only potential curative treatment for the disease. In this study, hyaluronic acid derived nanoparticles with physico-chemically entrapped indocyanine green, termed NanoICG, were utilized for intraoperative near infrared fluorescence detection of pancreatic cancer. NanoICG was not cytotoxic to healthy pancreatic epithelial cells and did not induce chemotaxis or phagocytosis, it accumulated significantly within the pancreas in an orthotopic pancreatic ductal adenocarcinoma model, and demonstrated contrast-enhancement for pancreatic lesions relative to non-diseased portions of the pancreas...
January 8, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
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