A meta-analysis of the diagnostic accuracy of chest ultrasound for the diagnosis of occult penetrating cardiac injuries in hemodynamically stable patients with penetrating thoracic trauma

Bleeding management of thoracic trauma

PURPOSE OF REVIEW

Thoracic injuries are directly responsible for 20-30% of deaths in severe trauma patients and represent one of the main regions involved in preventable or potentially preventable deaths. Controlling bleeding in thoracic trauma is a major challenge because intrathoracic hemorrhagic lesions can lead to hemodynamic instability and respiratory failure.

RECENT FINDINGS

The aim of managing intrathoracic hemorrhagic lesions is to control bleeding as quickly as possible and to control any respiratory distress. Extended focus assessment with sonography for trauma enables us to identify intrathoracic bleeding much more quickly and to determine the most appropriate therapeutic strategy.

SUMMARY

Thoracic bleeding can result from the diaphragm, intrathoracic vessels (aorta, but also inferior or superior vena cava, and suprahepatic veins), lung, cardiac, or chest wall injuries. Depending on thoracic lesions (such as hemothorax or hemopericardium), hemodynamic instability, and respiratory failure, a pericardial window approach, sternotomy, thoracotomy, or emergency resuscitation thoracotomy may be considered after discussion with the surgeon. Alongside treatment of injuries, managing oxygenation, ventilation, hemodynamic, and coagulopathy are essential for the patient's outcome.

Penetrating cardiac injuries: What you need to know

ABSTRACT

Despite significant advances in trauma surgery in recent years, patients sustaining penetrating cardiac injuries still have an overall survival rate of 19%. A substantial number of deaths occur at the scene, while approximately 40% of those reaching trauma centers survive. To increase survival, the key factor is timely intervention for bleeding control, pericardial tamponade release, and definitive repair. Asymptomatic patients sustaining precordial wounds or mediastinal gunshot wounds should be assessed with chest ultrasound to rule out cardiac injuries. Shock on admission is an immediate indication of surgery repair. Patients admitted in posttraumatic cardiac arrest may benefit from resuscitative thoracotomy. The surgical team must be assured that appropriate personnel, equipment, instruments, and blood are immediately available in the operating room. A left anterolateral thoracotomy, which can be extended to a clamshell incision, and sternotomy are the most common surgical incisions. Identification of cardiac anatomical landmarks during surgery is vital to avoid complications. There are several technical options for bleeding control, and the surgeon must be trained to use them to obtain optimal results. Ultimately, prioritizing surgical intervention and using effective resuscitation strategies are essential for improving survival rates and outcomes.

Cardiac Trauma: A Review of Penetrating and Blunt Cardiac Injuries

Cardiac injuries pose challenging diagnostic and management dilemmas. Cardiac trauma can be classified by mechanism into blunt and penetrating injuries. Penetrating trauma has an overall higher mortality and is more likely to require operative intervention. Due to the lethality of any cardiac injury, prompt diagnosis and treatment is critical for survival. The initial management of suspected cardiac injury should start with Advanced Trauma Life Support (ATLS) protocols followed shortly by directed diagnosis and management, which usually begins with a focused assessment with sonography in trauma (FAST) examination. In contrast to traditional ATLS protocols, some centers have adopted an assessment of "circulation before "airway" and "breathing"; however, this is an evolving concept. In this article, we provide an overview on the management of penetrating and blunt cardiac injuries, including use of physical exam, laboratory tests, imaging, and surgery.

Resuscitative Ultrasound and Protocols

The management of patients in shock or arrest is a critical aspect of emergency medicine and critical care. Rapid and accurate assessment is paramount in determining the underlying causes and initiating timely interventions. This article provides a summary of essential ultrasound protocols for the critically ill patient including the extended focused assessment with sonography for trauma (EFAST), rapid ultrasound for shock and hypotension (RUSH), and sonography in hypotension and cardiac arrest in the emergency department (SHoC-ED).

ACR Appropriateness Criteria® Penetrating Torso Trauma

This document assesses the appropriateness of various imaging studies for acute penetrating trauma to the torso. Penetrating trauma most commonly occurs from gunshots and stabbings, although any object can impale the patient. Anatomic location, type of penetrating trauma, and hemodynamic status are among the many important factors when deciding upon if, what, and when imaging is needed to further evaluate the patient. Imaging plays a critical role in the management of these patients. CT, in particular, aids in identifying and predicting internal injuries based upon trajectory of the object. Clinical variants are distinguished by ballistic versus nonballistic injuries, hemodynamic status, and compartment of the body injured. Ballistic trauma trajectory is less predictable, and imaging recommendations are adjusted for this unpredictability. Excluded from this document are penetrating traumatic injuries to pediatric patients and specific recommendations when the genitourinary system is clinically suspected to be injured, the latter of which is more specifically discussed in other Appropriateness Criteria documents. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are documented annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer documented journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer documented literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.

Focused assessment with sonography for trauma exam for diagnosis of pericardial effusion in penetrating thoracic trauma - A retrospective review from a level 1 trauma center

INTRODUCTION

Point of care ultrasound has long been used in the trauma setting for rapid assessment and diagnosis of critically ill patients. Its utility for diagnosis of pericardial effusion in the setting of penetrating thoracic trauma has more recently been a topic of consideration, given the rapid decompensation that these patients can experience.

OBJECTIVES

This study aims to identify the diagnostic accuracy of point of care ultrasound in the diagnosis of pericardial effusion among patients with penetrating thoracic trauma.

METHODS

Retrospective review of 2099 patients brought to the trauma bay between the years 2016 and 2021 were analyzed for diagnosis of pericardial effusion. Patients who were diagnosed with a pericardial effusion were investigated for point of care ultrasound findings. Descriptive statistics were performed to identify sensitivity, specificity, positive predictive value, and negative predictive value.

RESULTS

Prevalence was calculated to be 26.7 cases of pericardial effusion per 1000 patients presenting with penetrating thoracic trauma. Incidence was estimated to be 3.8 cases of pericardial effusion per 1000 person-years. Calculation of diagnostic capabilities of ED POCUS revealed a sensitivity of 96.36 ​%, a specificity of 100 ​%, PPV of 100 ​%, and NPV of 99.90 ​%.

CONCLUSIONS

Point of Care cardiac ultrasonography is a reliable tool for the rapid diagnosis of pericardial effusion in penetrating thoracic trauma patients. Patients with ultrasound suggestive of this condition should receive rapid surgical management to prevent decompensation.

The Role of Pericardial Window Techniques in the Management of Penetrating Cardiac Injuries in the Hemodynamically Stable Patient: Where Does It Fit in the Current Trauma Algorithm

INTRODUCTION

Penetrating cardiac injuries (PCIs) have high in-hospital mortality rates. Guidelines regarding the use of pericardial window (PW) for diagnosis and treatment of suspected PCIs are not universally established. The objective of this review was to provide a critical appraisal of the current literature to determine the effectiveness and safety of PW as both a diagnostic and therapeutic technique for suspected PCIs in patients with hemodynamic stability.

METHODS

A review was conducted using PubMed/MEDLINE, Google Scholar, and Embase to identify literature evaluating the accuracy and therapeutic efficacy of PW and its role in a hemodynamically stable patient with penetrating thoracic or thoracoabdominal trauma.

RESULTS

Eleven studies evaluating diagnostic PW and two studies evaluating therapeutic PW were included. These studies ranged from (y) 1977 to 2018. Existing literature indicates that PW is highly sensitive (92%-100%) and specific (96%-100%) for the diagnosis of suspected PCIs. PW and drainage, when compared with sternotomy, may be associated with decreased total hospital stay (4.1 versus 6.5 d; P < 0.001) and intensive care unit stay (0.25 versus 2.04 d; P < 0.001) along with similar mortality and complication rates after the management of hemopericardium.

CONCLUSIONS

In a hemodynamically stable patient presenting with penetrating cardiac trauma with a high suspicion for PCI, PWs can (1) facilitate prompt diagnosis in the event of equivocal ultrasonography findings and (2) serve as an effective therapeutic modality with the benefit of potentially avoiding more invasive procedures. Subxiphoid, transdiaphragmatic, and laparoscopic approaches for PW have been shown to have similar efficacy and safety.

Surgical exploration for stable patients with penetrating cardiac box injuries: when and how? A cohort of 155 patients from Marseille area

BACKGROUND

The management of penetrating thoracic injuries in moribund or unstable patients is clearly described in contrast to that of stable patients, particularly for those with a cardiac box injury. This anatomic location suggests a potentially lethal cardiac injury and requires urgent therapeutic decision making. The present study aims at determining when surgical exploration is beneficial for stable patients presenting with penetrating cardiac box injuries (PCBI).

METHODS

This was a retrospective study of stable civilian patients with PCBI referred to level I trauma centers in the Marseille area between January 2009 and December 2019. Using post-hoc analysis of the management outcomes, patients whose surgery was considered therapeutic (group A) were compared with those surgery was considered non-therapeutic and with non-operated patients (group B).

RESULTS

A total of 155 patients with PCBI were included, with 88% (n = 137) of stab wound injuries (SW). Overall, surgical exploration was performed in 54% (n = 83), considered therapeutic in 71% (n = 59), and performed by video-assisted thoracoscopy (VATS) in 42% (n = 35) with a conversion rates of 14% (n = 5). Initial extended Fast Assessment with Sonography for Trauma (eFAST) revealed the presence of hemopericardium in 29% (n = 29) in group A vs 9.5% (n = 7) in group B, p = 0.010, and was associated with a negative predictive value of 93% regarding the presence of a cardiac injury. Chest tube flow was significantly higher in patients who required surgery, with a median (IQR) of 600.00 (350.00, 1200.00) mL vs. 300.0 (150.00, 400.00) mL (p = 0.001).

CONCLUSION

eFAST and chest tube flow are the cornerstones of the management of stable PCBI. Video-assisted thoracoscopy represents an interesting approach to check intra thoracic wounds while minimizing surgical morbidity.

LEVEL OF EVIDENCE

Level IV, prognostic study.

Torso damage control for ongoing hemorrhage: Tips and tricks

Thoracic injuries are common and occur in combination with other injuries in various compartments representing a significant pattern of injury in any trauma center. Injured patients presenting with exsanguinating hemorrhage from the thoracic cavity are an acute subset of patients that can be extremely challenging to any trauma surgeon as the immediate need to diagnose and intervene is critical. Diagnosis is based on traumatic history pattern and hemodynamics, assisted with plain films, ultra-sound and properly placed chest tubes. The chest should always be considered as a source of unexplained hemodynamic instability with hemorrhage identification by tube thoracostomy, pericardial window or surgical thoracotomy if the patient is already in the OR or if imaging is not available. Various surgical incisions are possible for thoracic traumatic bleeding with various exposure advantages and disadvantages with care and thought prior to incision. Regardless, delay to intervention or trepidation is lethal particularly in these challenging trauma patients.