Hemoperitoneum Due to Penetrating Intercostal Artery Injury: A Case Report of a Rare and Still Understudied Entity

Intercostal artery injury may be life-threatening and usually presents as hemothorax. We report a unique case of penetrating injury, causing hemoperitoneum due to intercostal artery injury, without thoracic involvement. During urgent laparotomy, no intra-abdominal organ injury was found. Hemostasis was successfully achieved via suturing through an additional lateral 10cm incision through the left thorax.

EVTM After COVID

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Morphometric Analysis of the Aorto-Esophageal Relationship in Swine for Trans-Esophageal Aortic Blood Flow Occlusion

Background Trans-esophageal aortic blood flow occlusion (TEABO) is an emerging technology undergoing laboratory research that offers a strategy for temporary hemorrhage control. The purpose of this study was to evaluate the anatomical relationship between the esophagus and descending thoracic aorta in two breeds of swine to support a porcine model for future TEABO investigations. Methods Thoracoabdominal CT scans were compared in Hanford miniature swine and Yorkshire swine. Measurements were taken at the five vertebral levels proximal to the gastroesophageal junction. Data collected included the distance between the center of the esophagus and the center of the descending aorta, the angle between the vertebral column, descending aorta, and esophagus, and the length the thoracic esophagus travels anteriorly to the descending aorta. Results Ten Hanford swine and ten Yorkshire swine were compared. In Hanford swine, the distal thoracic esophagus travels anteriorly to the descending aorta for a mean distance of 11.5 ± 2.3 cm. In Yorkshire swine, the thoracic esophagus travels to the right of the descending aorta. The mean angle between the vertebral body, descending aorta, and esophagus was 79.6 to 97.8 degrees higher in Hanfords compared to Yorkshires (p<0.0001 at all five vertebral levels compared). The mean distance between the esophagus and descending aorta was 0.2 to 0.6 cm higher in Hanfords compared to Yorkshires with a significant difference found at only two vertebral levels (p=0.01 and p=0.02). Conclusion Hanford miniature swine possess an aorto-esophageal relationship comparable to humans and should be the preferred animal model for TEABO studies.

Endovascular Instead of Open Surgical Repair of Axillosubclavian Artery Injuries: An Evolving Paradigm Shift

Axillosubclavian injuries (ASI) comprise a small proportion of vascular injuries, yet their morbidity and mortality is high. This is often attributable to non-compressible bleeding in the apical thorax, hemodynamic instability, and the anatomically challenging location of these vessels making them difficult to access and control quickly. While the traditional management of ASI was with open surgical repair (OSR), recent years have seen an evolution towards less invasive endovascular repair (EVR). In patients with these injuries, EVR may be a safer alternative that achieves similar immediate results with significantly lower complication and mortality rates than the highly morbid open surgical option. In this article, we review and compare the two approaches, providing an overview of patient selection, anatomic considerations, techniques, postoperative management, and outcomes. With the advent of EVTM and more trauma team members capable of endovascular management of vascular trauma, a paradigm shift towards EVR for ASI is taking place.

REBOA for Inter-Hospital Transfer: Are We Walking in the Dark?

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Hybrid Management of Acute Portal Vein Thrombosis Complicated by Mesenteric Ischemia

Treatment for portal vein thrombosis complicated by mesenteric ischemia can be treated in the operating room following a hybrid approach. This allows for efficient care of the patient, avoids the need for transhepatic cannulation for obtaining a venogram and placing a thrombolysis catheter, and obviates the need to obtain percutaneous venous access.

Flying with a Safety Net: Use of REBOA to Enable Safe Transfer to a Level 1 Trauma Center

Background: Using Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) during air and ground transport requires coordination among the responding clinical team, transport team, and receiving surgical team. Here, we describe the development of a REBOA transport program in a civilian medical system that demonstrates the value of REBOA as part of the toolkit for safe casualty transport. Methods: The regional REBOA program was developed at St. Anthony Summit Medical Center in a multi-step planning and training process to ensure coordination among the facilities and transport resources during trauma patient care. Retrospective record review was performed on all patients (n=5) that received REBOA for transport from the Level 3 Trauma Center to the Level 1 Trauma Center, since inception of the program in March 2019. Data were gathered from hospital electronic medical records. Results: SASMC has transported five trauma patients under the REBOA program; all successfully arrived at the Level 1 Trauma Center to receive definitive care. The integrated arterial blood pressure monitoring capability in the REBOA catheter provided robust physiologic data to enable data-driven interventions during transport. Conclusion: The REBOA program described here is a model of how REBOA can be used to enable safe transport between levels of care, when, without REBOA, such transport might not be possible. The model is applicable during care of civilian trauma patients and combat casualties, where injured patients are initially treated in a prehospital or Role1/2 environment but require transport to a Level 1 Trauma Center or Role 3+ for definitive care. Keywords: REBOA, non-compressible hemorrhage, patient transport

Bioengineered Acellular Vessel Implantation in a Patient with Chronic Limb-Threatening Ischemia: A Case Report and Discussion of Implications for Trauma

The ideal conduit for vascular reconstruction is one that can be obtained “off the shelf” and demonstrates long-term patency, tissue incorporation and resistance to infection. Currently available conduits, such as autologous vein and synthetic grafts, are limited in one or more of these areas. The Human Acellular Vessel (HAV), a bioengineered, acellular blood vessel, can be obtained “off the shelf” and has shown promise in each of these properties. We describe a case in which the HAV was utilized for open bypass reconstruction in a patient with chronic limb-threatening ischemia who lacked alternative reconstructive options. The case is followed by a discussion of potential broader applications of this novel implant, specifically in the management of vascular trauma.

Chimney Grafts in Acute Endovascular Aortic Repair Due to Ruptured Abdominal Aorta Aneurysm

Parallel grafts, or chimney grafts, are at times a good solutions for EndoVascular Aorta repair (EVAR) in ruptured cases. These photoes shows an acute case with uni-chimney left kidney with succesful outcome.

A Practical Approach to Introducing Pre-Hospital Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA), the Problems Encountered and Lessons Learned

Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) is an endovascular procedure which utilises a catheter based balloon device to achieve aortic occlusion. The aim of this resuscitative measure is to improve blood pressure proximal to the occlusion site and therefore preserve cardiac and cerebral perfusion in order to prevent cardiac arrest; additionally there is a relative reduction in arterial inflow to the site of injury. Endovascular techniques are gaining acceptance for the in-hospital management of haemorrhage, however their use in pre-hospital care is still limited. This is due to a number of factors including the technical challenges, training and skill sets of pre-hospital care teams and the potential for harm of REBOA, particularly with extended balloon occlusion times. However, non compressible torso haemorrhage is associated with a mortality of approximately 50% and a significant proportion of these deaths occur in the pre-hospital phase of care. In the exsanguinating patient, resuscitative thoracotomy (RT) with direct aortic compression is often the only means to control haemorrhage. This resuscitative measure is now an established pre-hospital intervention which has significantly improved outcomes in the context of penetrating trauma, particularly thoracic injury. In the context of blunt injury and subdiaphragmatic haemorrhage, however, the outcomes from pre-hospital resuscitative thoracotomy remain poor. We present our initial technique for successfully introducing REBOA for the pre-hospital management of exsanguinating pelvic or groin heamorrhage following trauma, our indications for REBOA and comment on the problems and limitations encountered as well the lessons learned.