scholarly journals Non-invasive Dual-Channel Broadband Diffuse Optical Spectroscopy of Massive Hemorrhage and Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) in Swine

2018 ◽  
Vol 183 (suppl_1) ◽  
pp. 150-156
Author(s):  
Jesse H Lam ◽  
Thomas D O’Sullivan ◽  
Tim S Park ◽  
Jae H Choi ◽  
Robert V Warren ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Massive Hemorrhage ◽  
Balloon Occlusion ◽  
Total Blood ◽  
Diffuse Optical Spectroscopy ◽  
Hemoglobin Oxygen Saturation ◽  
Non Invasive ◽  
Dual Channel ◽  
Tissue Compartments ◽  
Endovascular Balloon Occlusion

Abstract Objective To quantitatively measure tissue composition and hemodynamics during resuscitative endovascular balloon occlusion of the aorta (REBOA) in two tissue compartments using non-invasive two-channel broadband diffuse optical spectroscopy (DOS). Methods Tissue concentrations of oxy- and deoxyhemoglobin (HbO2 and HbR), water, and lipid were measured in a porcine model (n = 10) of massive hemorrhage (65% total blood volume over 1 h) and 30-min REBOA superior and inferior to the aortic balloon. Results After hemorrhage, hemoglobin oxygen saturation (StO2 = HbO2/[HbO2 + HbR]) at both sites decreased significantly (−29.9% and −42.3%, respectively). The DOS measurements correlated with mean arterial pressure (MAP) (R2 = 0.79, R2 = 0.88), stroke volume (SV) (R2 = 0.68, R2 = 0.88), and heart rate (HR) (R2 = 0.72, R2 = 0.88). During REBOA, inferior StO2 continued to decline while superior StO2 peaked 12 min after REBOA before decreasing again. Inferior DOS parameters did not associate with MAP, SV, or HR during REBOA. Conclusions Dual-channel regional tissue DOS measurements can be used to non-invasively track the formation of hemodynamically distinct tissue compartments during hemorrhage and REBOA. Conventional systemic measures MAP, HR, and SV are uncorrelated with tissue status in inferior (downstream) sites. Multi-compartment DOS may provide a more complete picture of the efficacy of REBOA and similar resuscitation procedures.

scholarly journals Increased crystalloid fluid requirements during zone 3 Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) versus Abdominal Aortic and Junctional Tourniquet (AAJT) after class II hemorrhage in swine

2021 ◽  
Author(s):  
Andreas Brännström ◽  
Albin Dahlquist ◽  
Jenny Gustavsson ◽  
Ulf P. Arborelius ◽  
Mattias Günther
Keyword(s):  
Fluid Management ◽  
Class Ii ◽  
Balloon Occlusion ◽  
Metabolic Effects ◽  
Total Blood ◽  
Crystalloid Fluid ◽  
Vasopressor Support ◽  
Abdominal Aortic ◽  
Life Threatening ◽  
Endovascular Balloon Occlusion

Abstract Purpose Pelvic and lower junctional hemorrhage result in a significant amount of trauma related deaths in military and rural civilian environments. The Abdominal Aortic and Junctional Tourniquet (AAJT) and infra-renal (zone 3) Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) are two options for resuscitation of patients with life threatening blood loss from and distal to the pelvis. Evidence suggest differences in the hemodynamic response between AAJT and zone 3 REBOA, but fluid management during resuscitation with the devices has not been fully elucidated. We compared crystalloid fluid requirements (Ringer’s acetate) between these devices to maintain a carotid mean arterial pressure (MAP) > 60 mmHg. Methods 60 kg anesthetized and mechanically ventilated male pigs were subjected to a mean 1030 (range 900–1246) mL (25% of estimated total blood volume, class II) haemorrhage. AAJT (n = 6) or zone 3 REBOA (n = 6) were then applied for 240 min. Crystalloid fluids were administered to maintain carotid MAP. The animals were monitored for 30 min after reperfusion. Results Cumulative resuscitative fluid requirements increased 7.2 times (mean difference 2079 mL; 95% CI 627–3530 mL) in zone 3 REBOA (mean 2412; range 800–4871 mL) compared to AAJT (mean 333; range 0–1000 mL) to maintain target carotid MAP. Release of the AAJT required vasopressor support with norepinephrine infusion for a mean 9.6 min (0.1 µg/kg/min), while REBOA release required no vasopressor support. Conclusion Zone 3 REBOA required 7.2 times more crystalloids to maintain the targeted MAP. The AAJT may therefore be considered in a situation of hemorrhagic shock to limit the need for crystalloid infusions, although removal of the AAJT caused more severe hemodynamic and metabolic effects which required vasopressor support.

scholarly journals Effects of Extended Lower Extremity Cooling Following Zone 3 REBOA in a Porcine Hemorrhage Model

2020 ◽  
Vol 185 (Supplement_1) ◽  
pp. 42-49 ◽  
Author(s):  
Harris W Kashtan ◽  
Meryl A Simon ◽  
Carl A Beyer ◽  
Andrew Wishy ◽  
Guillaume L Hoareau ◽  
...  
Keyword(s):  
Balloon Occlusion ◽  
Total Blood ◽  
Ischemic Time ◽  
Shed Blood ◽  
External Cooling ◽  
Physiologic Parameters ◽  
Hypothermia Group ◽  
Ischemic Muscle ◽  
Endovascular Balloon Occlusion ◽  
Serum Myoglobin

Abstract Introduction External cooling of ischemic limbs has been shown to have a significant protective benefit for durations up to 4 hours. Materials and Methods It was hypothesized that this benefit could be extended to 8 hours. Six swine were anesthetized and instrumented, then underwent a 25% total blood volume hemorrhage. Animals were randomized to hypothermia or normothermia followed by 8 hours of Zone 3 resuscitative endovascular balloon occlusion of the aorta, then resuscitation with shed blood, warming, and 3 hours of critical care. Physiologic parameters were continuously recorded, and laboratory specimens were obtained at regular intervals. Results There were no significant differences between groups at baseline. There were no significant differences between creatine kinase in the hypothermia group when compared to the normothermia group (median [IQR] = 15,206 U/mL [12,476−19,987] vs 23,027 U/mL [18,745−26,843]); P = 0.13) at the end of the study. Similarly, serum myoglobin was also not significantly different in the hypothermia group after 8 hours (7,345 ng/mL [5,082−10,732] vs 5,126 ng/mL [4,720−5,298]; P = 0.28). No histologic differences were observed in hind limb skeletal muscle. Conclusion While external cooling during prolonged Zone 3 resuscitative endovascular balloon occlusion of the aorta appears to decrease ischemic muscle injury, this benefit appears to be time dependent. As the ischemic time approaches 8 hours, the benefit from hypothermia decreases.

Non-Invasive Monitoring of Cyanide Toxicity Using Diffuse Optical Spectroscopy in a Rabbit Model

CHEST Journal ◽  
2004 ◽  
Vol 126 (4) ◽  
pp. 874S
Author(s):  
Jennifer Armstrong ◽  
Jangwoen Lee ◽  
Andrew Duke ◽  
Hamza Beydoun ◽  
Kelly Kreuter ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Rabbit Model ◽  
Invasive Monitoring ◽  
Diffuse Optical Spectroscopy ◽  
Cyanide Toxicity ◽  
Non Invasive

scholarly journals Distal organ inflammation and injury after resuscitative endovascular balloon occlusion of the aorta in a porcine model of severe hemorrhagic shock

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242450
Author(s):  
Yansong Li ◽  
Michael A. Dubick ◽  
Zhangsheng Yang ◽  
Johnny L. Barr ◽  
Brandon J. Gremmer ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Positive Control ◽  
Balloon Occlusion ◽  
Organ Injury ◽  
Trauma Patients ◽  
Total Blood ◽  
Shed Blood ◽  
Endovascular Balloon Occlusion

Background and objective Resuscitative Endovascular Balloon Occlusion of Aorta (REBOA) has emerged as a potential life-saving maneuver for the management of non-compressible torso hemorrhage in trauma patients. Complete REBOA (cREBOA) is inherently associated with the burden of ischemia reperfusion injury (IRI) and organ dysfunction. However, the distal organ inflammation and its association with organ injury have been little investigated. This study was conducted to assess these adverse effects of cREBOA following massive hemorrhage in swine. Methods Spontaneously breathing and consciously sedated Sinclair pigs were subjected to exponential hemorrhage of 65% total blood volume over 60 minutes. Animals were randomized into 3 groups (n = 7): (1) Positive control (PC) received immediate transfusion of shed blood after hemorrhage, (2) 30min-cREBOA (A30) received Zone 1 cREBOA for 30 minutes, and (3) 60min-cREBOA (A60) given Zone 1 cREBOA for 60 minutes. The A30 and A60 groups were followed by resuscitation with shed blood post-cREBOA and observed for 4h. Metabolic and hemodynamic effects, coagulation parameters, inflammatory and end organ consequences were monitored and assessed. Results Compared with 30min-cREBOA, 60min-cREBOA resulted in (1) increased IL-6, TNF-α, and IL-1β in distal organs (kidney, jejunum, and liver) (p < 0.05) and decreased reduced glutathione in kidney and liver (p < 0.05), (2) leukopenia, neutropenia, and coagulopathy (p < 0.05), (3) blood pressure decline (p < 0.05), (4) metabolic acidosis and hyperkalemia (p < 0.05), and (5) histological injury of kidney and jejunum (p < 0.05) as well as higher levels of creatinine, AST, and ALT (p < 0.05). Conclusion 30min-cREBOA seems to be a feasible and effective adjunct in supporting central perfusion during severe hemorrhage. However, prolonged cREBOA (60min) adverse effects such as distal organ inflammation and injury must be taken into serious consideration.

200 NON-INVASIVE DETECTION OF CYANIDE TOXICITY AND TREATMENT USING DIFFUSE OPTICAL SPECTROSCOPY

2005 ◽  
Vol 53 (1) ◽  
pp. S113.2-S113
Author(s):  
K. Kreuter ◽  
J. Lee ◽  
J. Armstrong ◽  
B. Tromberg ◽  
S. Mahon ◽  
...  
Keyword(s):  
Optical Spectroscopy ◽  
Diffuse Optical Spectroscopy ◽  
Cyanide Toxicity ◽  
Non Invasive

Giant aneurysm of the petrous internal carotid artery: diagnosis and treatment

1998 ◽  
Vol 112 (2) ◽  
pp. 196-198 ◽  
Author(s):  
S. C. Coley ◽  
A. Clifton ◽  
J. Britton
Keyword(s):  
Hearing Loss ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Imaging Techniques ◽  
Giant Aneurysm ◽  
Balloon Occlusion ◽  
Fusiform Aneurysm ◽  
Non Invasive ◽  
Endovascular Balloon Occlusion

AbstractWe report the case of a giant fusiform aneurysm of the petrous internal carotid artery in a 15-year-old patient who had presented with headache, hearing loss and Horner's syndrome. Definitive radiological diagnosis was made by non-invasive imaging techniques, including magnetic resonance angiography (MRA). The aneurysm was obliterated by endovascular balloon occlusion following successful tolerance of test occlusion of the internal carotid artery.

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