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Clinical Trial Summary

The spleen is often injured when the body sustains trauma. This leads to bleeding. The bleeding can be stopped by a big operation cutting open the belly or a small hole in your groin where a blood vessel can be accessed and through which the bleeding can be stopped. We do not know what types of injuries it is best to use this procedure. We do not know why we do not use the smaller technique in some instances. We also do not know exactly which of a number of ways to stop the bleeding could be better. We have a big data set in the trauma and audit research network (TARN) which we would like to use to help answer these questions and design further studies to better answer the questions. Adding a few other pieces of data, we are able to answer key questions into how the spleen will best be treated in trauma.


Clinical Trial Description

Splenic embolisation (SE) is a minimally invasive procedure whereby the splenic artery is blocked to stop bleeding from the spleen. This is typically undertaken in the context of acute traumatic splenic injury, diagnosed using Computed Tomography (CT) Scan by a diagnostic radiologist. The vessel can be accessed using wires and catheters under imaging guidance with access typically though the common femoral artery. This has been shown to be a viable management option in patients who are traumatically injured, in the absence of concurrent immediately life-threatening other injuries requiring damage control surgery (DCS)1. Splenic injury is classified according to the American Association of Trauma Surgery grade (grades 1 to 5)2, with increased severity traumatic injury according to the higher numerical value. SE is typically performed in higher grade (3/4) splenic injuries, although the gold standard of management of Grade 5 is considered surgical resection. There is no current definitive consensus as to appropriateness of the management of these grades although there is a trend towards embolisation since the inception of trauma networks in England in 20123. The 22 Trauma centres now function as a hub for trauma within their specified area and had the aim of developing trauma services and improving clinical care. The 22 Adult Trauma centres within England are listed in appendix A. There are few guidelines regarding the availability and specifications of interventional radiology (IR) provision at Major Trauma Centres (MTCs) 4 and there is no available data on the impact of IR on-call structure and quality or location of IR facilities on the splenic conservation rate and time to treatment. SE technique and rate are variable and depend on multiple factors. These factors include the time to CT report, the availability of On Call IR services, the method of contact of the IR, availability of a hybrid theatre and the associated injuries. A recent survey of British Society of Interventional Radiology (BSIR) members, undertaken as part of the BSIR audit and registry committee, demonstrated wide variability in the management and treatment of splenic injuries with respect to SE (unpublished data). This was due to a number of factors regarding service design and decisions around appropriateness and method of embolisation. Splenic embolisation can be performed in two main ways, either with a proximal occlusion of the splenic artery outside of its hilum, or within the actual splenic tissue having selected the arterial branch that is demonstrated as bleeding. The embolisation (stopping of the bleeding) can be performed using a variety of methods, including coils, plugs, gelfoam or glue to stop the blood getting to the damaged vessel. Thetechnique and method of embolisaiton also have a poor evidence base. No multicentre UK based dataset has been published. This highlights the lack of consensus, guidelines, and research in this area. Work on the available retrospective dataset which are available through Trauma and Audit Research Network (TARN) should be undertaken to analyse the current situation to enable design of multi-centre prospective research. This work will benefit patients by establishing an improved evidence base regarding the optimum service design and treatment pathway. We aim to benefit the NHS by clearly identifying factors that improve the successful embolisation rate, a less invasive procedure than damage control surgery (DCS) whereby a surgeon would remove the spleen through a large incision in the abdomen. We aim to clarify the role of and support the development of IR within the trauma setting by establishing a more evidence-based practice to support interventional radiologists in their decision-making around splenic embolisation in the context of Acute Traumatic Splenic injury (ATSI). The determination of the impact IR service design on outcomes will enable improved management decisions on overall patient care. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06334263
Study type Observational [Patient Registry]
Source University Hospital Plymouth NHS Trust
Contact
Status Not yet recruiting
Phase
Start date May 1, 2024
Completion date September 30, 2025

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