scholarly journals A Novel Method of Measuring Human Lymphatic Pumping in Healthy and Lymphedematous Legs Using Indocyanine Green Fiuorescence Lymphography

2010 ◽  
Vol 51 (3) ◽  
pp. 796-797
Author(s):  
N. Unno ◽  
M. Nishiyama ◽  
M. Suzuki ◽  
N. Yamamoto ◽  
H. Tanaka ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Novel Method ◽  
Lymphatic Pumping

scholarly journals A novel method of measuring human lymphatic pumping using indocyanine green fluorescence lymphography

2010 ◽  
Vol 52 (4) ◽  
pp. 946-952 ◽  
Author(s):  
Naoki Unno ◽  
Motohiro Nishiyama ◽  
Minoru Suzuki ◽  
Hiroki Tanaka ◽  
Naoto Yamamoto ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Green Fluorescence ◽  
Indocyanine Green Fluorescence ◽  
Novel Method ◽  
Lymphatic Pumping

scholarly journals A Novel Way of Standardization of ICG Lymphangiography Reporting

2020 ◽  
Vol 53 (03) ◽  
pp. 377-380
Author(s):  
Ashok Basur Chandrappa ◽  
Ritu Batth ◽  
Srikanth Vasudevan ◽  
Anantheswar Yellambalase N. ◽  
Dinkar Sreekumar
Keyword(s):  
Indocyanine Green ◽  
Plastic Surgery ◽  
Fluorescence Imaging ◽  
Interrater Reliability ◽  
Reporting System ◽  
Imaging System ◽  
Repeat Testing ◽  
Fluorescence Imaging System ◽  
Novel Method ◽  
Surgery Department

Abstract Background Indocyanine green (ICG) lymphangiography is being increasingly employed to assess the severity of lymphedema, locate the areas of patent linear lymphatics and dermal backflow and plan treatment. This study suggests a novel method of reporting ICG findings in extremities to enable easy understanding among surgeons and physiotherapists and avoid repeat testing when a patient visits a disparate lymphedema center or clinician. Methods A reporting protocol was developed in the lymphedema clinic of the plastic surgery department, and patients were asked to bring along the report in every subsequent review. The ICG findings were recorded on the fluorescence imaging system as well. The report was prepared by one and analyzed by two different clinicians without repeating the test on 10 consecutive patients. Results The interrater reliability of findings in the report was found to be 98.7% among the three clinicians. Conclusion The reporting system was found to be illustratable and reproducible

Lymphaticovenous Bypass for Immediate Lymphatic Reconstruction in Locoregional Advanced Melanoma Patients

2019 ◽  
Vol 36 (04) ◽  
pp. 247-252
Author(s):  
Cagri Cakmakoglu ◽  
Grzegorz J. Kwiecien ◽  
Graham S. Schwarz ◽  
Brian Gastman
Keyword(s):  
Lymph Node ◽  
Malignant Melanoma ◽  
Indocyanine Green ◽  
Lymph Node Dissection ◽  
Treatment Modalities ◽  
Node Dissection ◽  
Lymphatic Circulation ◽  
Axillary Lymphadenectomy ◽  
Novel Method ◽  
Melanoma Patients

Abstract Background Extremity lymphedema is a dreaded complication of ilioinguinal or axillary lymphadenectomy. In conventional lymph node dissection, no effort is performed to maintain or reestablish extremity lymphatic circulation. We hypothesized that immediate lymphatic reconstruction (ILR) could be a reproducible procedure to maintain functional lymphatic flow after ilioinguinal and axillary lymphadenectomy in patients with malignant melanoma. This is the first report describing prophylactic ILR in patients with melanoma who underwent complete lymph node dissection for gross nodal disease. Patients and Methods We report a case series of 22 malignant melanoma patients who had axillary or ilioinguinal lymph node dissection for bulky locoregional invasion with immediate lymphatic reconstruction. A novel method to identify and select lymphatics with high flow using fluorescent lymphangiogram with indocyanine green dye gradient software is described. Surgical details, common difficulties, as well as indications are discussed. Instructional videos are also provided. Results Our technique is reproducible, since we have successfully completed immediate lymphatic reconstruction in 22 cases consecutively. Intradermal indocyanine green injections allowed for visualization of 1 to 3 transected lymphatics after lymphadenectomy. An average of 1.8 lymphaticovenous bypass (range 1–3) was performed per patient. Conclusion Reestablishment of lymphatic circulation after ilioinguinal or axillary lymphadenectomy in patients with melanoma characterizes a novel method that may reduce the problem of upper and lower extremity iatrogenic lymphedema. This is particularly important given the emergence of new adjuvant treatment modalities that considerably improve patients' survival after lymphadenectomy.

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

Enhanced type I photoreaction of indocyanine green via electrostatic-force-driven aggregation

Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9517-9523 ◽  
Author(s):  
Huizhen Fan ◽  
Yu Fan ◽  
Wenna Du ◽  
Rui Cai ◽  
Xinshuang Gao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Indocyanine Green ◽  
Electrostatic Force ◽  
Type I ◽  
Positively Charged

ICG forms aggregates in positively charged mesoporous silica, which show an enhanced type I photoreaction pathway.

Initial experience with a new quantitative assessment tool for fluorescent imaging in peripheral artery disease

VASA ◽  
2017 ◽  
Vol 46 (5) ◽  
pp. 383-388 ◽  
Author(s):  
Henrik Christian Rieß ◽  
Anna Duprée ◽  
Christian-Alexander Behrendt ◽  
Tilo Kölbel ◽  
Eike Sebastian Debus ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Quantitative Assessment ◽  
Tissue Perfusion ◽  
Fluorescent Imaging ◽  
Peripheral Artery ◽  
Peripheral Bypass ◽  
Before And After ◽  
Artery Disease ◽  
Green Fluorescent ◽  
Peripheral Bypass Grafting

Abstract. Background: Perioperative evaluation in peripheral artery disease (PAD) by common vascular diagnostic tools is limited by open wounds, medial calcinosis or an altered collateral supply of the foot. Indocyanine green fluorescent imaging (ICG-FI) has recently been introduced as an alternative tool, but so far a standardized quantitative assessment of tissue perfusion in vascular surgery has not been performed for this purpose. The aim of this feasibility study was to investigate a new software for quantitative assessment of tissue perfusion in patients with PAD using indocyanine green fluorescent imaging (ICG-FI) before and after peripheral bypass grafting. Patients and methods: Indocyanine green fluorescent imaging was performed in seven patients using the SPY Elite system before and after peripheral bypass grafting for PAD (Rutherford III-VI). Visual and quantitative evaluation of tissue perfusion was assessed in an area of low perfusion (ALP) and high perfusion (AHP), each by three independent investigators. Data assessment was performed offline using a specially customized software package (Institute for Laser Technology, University Ulm, GmbH). Slope of fluorescent intensity (SFI) was measured as time-intensity curves. Values were compared to ankle-brachial index (ABI), slope of oscillation (SOO), and time to peak (TTP) obtained from photoplethysmography (PPG). Results: All measurements before and after surgery were successfully performed, showing that ABI, TTP, and SOO increased significantly compared to preoperative values, all being statistically significant (P < 0.05), except for TTP (p = 0.061). Further, SFI increased significantly in both ALP and AHP (P < 0.05) and correlated considerably with ABI, TTP, and SOO (P < 0.05). Conclusions: In addition to ABI and slope of oscillation (SOO), the ICG-FI technique allows visual assessment in combination with quantitative assessment of tissue perfusion in patients with PAD. Ratios related to different perfusion patterns and SFI seem to be useful tools to reduce factors disturbing ICG-FI measurements.

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