Nonoperative management of solid organ injuries in children. Is it safe?

Management of complex pediatric and adolescent liver trauma: adult vs pediatric level 1 trauma centers

PURPOSE

Management of high-grade pediatric and adolescent liver trauma can be complex. Studies suggest that variation exists at adult (ATC) vs pediatric trauma centers (PTC); however, there is limited granular comparative data. We sought to describe and compare the management and outcomes of complex pediatric and adolescent liver trauma between a level 1 ATC and two PTCs in a large metropolitan city.

METHODS

A retrospective review of pediatric and adolescent (age < 21 years) patients with American Association for the Surgery of Trauma (AAST) Grade 4 and 5 liver injuries managed at an ATC and PTCs between 2016 and 2022 was performed. Demographic, clinical, and outcome data were obtained at the ATC and PTCs. Primary outcomes included rates of operative management and use of interventional radiology (IR). Secondary outcomes included packed red blood cell (pRBC) utilization, intensive care unit (ICU) length of stay (LOS), and hospital LOS.

RESULTS

One hundred forty-four patients were identified, seventy-five at the ATC and sixty-nine at the PTC. The cohort was predominantly black (65.5%) males (63.5%). Six injuries (8.7%) at the PTC and forty-five (60%) injuries at the ATC were penetrating trauma. Comparing only blunt trauma, ATC patients had higher Injury Severity Score (median 37 vs 26) and ages (20 years vs 9 years). ATC patients were more likely to undergo operative management (26.7% vs 11.0%, p = 0.016) and utilized IR more (51.9% vs 4.8%, p < 0.001) compared to the PTC. The patients managed at the ATC required higher rates of pRBC transfusions though not statistically significant (p = 0.06). There were no differences in mortality, ICU, or hospital LOS.

CONCLUSION

Our retrospective review of high-grade pediatric and adolescent liver trauma demonstrated higher rates of IR and operating room use at the ATC compared to the PTC in the setting of higher Injury Severity Score and age. While the PTC successfully managed > 95% of Grade 4/5 liver injuries non-operatively, prospective data are needed to determine the optimal algorithm for management in the older adolescent population.

LEVEL OF EVIDENCE

Level IV.

Contemporary management of pediatric high grade renal trauma: 10 year experience at a level 1 trauma centre

BACKGROUND

Current guidelines advocating the conservative management of renal injuries in children are primarily extrapolated from adult series due to a dearth of evidence in the pediatric population.

OBJECTIVES

The aim of this study was to review our experience in the management of pediatric high-grade renal trauma and to clarify the role of conservative management in this cohort of patients.

STUDY DESIGN

The Alberta Trauma Registry (ATR) is a comprehensive web-based registry which functions to prospectively collect data on all trauma patients in the province who sustain a severe injury (i.e. Injury Severity Score (ISS) ≥12). The ATR was used to identify all pediatric patients who attended hospitals within the Edmonton region with high grade renal injuries (grade III-V) between January 2006 and December 2018. Hospital records and imaging were reviewed to identify patient demographics, mechanism of injury, AAST grade, haemodynamic stability, associated injuries, management, length of hospital stay (LOS), complications, and follow-up outcomes.

RESULTS

A total of 53 children (38 boys, 15 girls) were identified with a mean age of 13 years (1-16). The mechanism of injury was blunt trauma in 92.5% (49/53) of cases (Supplementary Table). AAST grade distribution was 37.8% Grade III (20/53), 49% Grade IV (26/53) and 13.2% Grade V (7/53). All Grade III injuries were successfully managed conservatively. Overall 11 patients with Grade IV/V injuries required urological intervention (ureteral stenting (5 patients), angioembolization (4 patients), bladder washout with clot evacuation (1 patient), emergency nephrectomy (3 patients)). The overall renal salvage rate was 92.4% (49/53).

DISCUSSION

Our series confirms the safety of expectant management in high grade pediatric renal trauma. All grade III injuries in our study were managed conservatively without the need for intervention. This suggests that these injuries may be managed safely outside of designated trauma centres. One third of children with grade IV/V injuries required intervention. Therefore we recommend that patients with these injuries are transferred to specialized units with the capacity to provide such procedures if required.

CONCLUSION

This study supports the conservative management of pediatric renal trauma in the setting of high-grade injury. Expectant management was associated with acceptable rates of intervention and excellent renal salvage rates.

Clinical course and pancreas parenchyma sparing surgical treatment of severe pancreatic trauma

INTRODUCTION

Pancreatic trauma (PT) involving the main pancreatic duct is rare, but represents a challenging clinical problem with relevant morbidity and mortality. It is generally classified according to the American Association for the Surgery of Trauma (AAST) and often presents as concomitant injury in blunt or penetrating abdominal trauma. Diagnosis may be delayed because of a lack of clinical or radiological manifestation. Treatment options for main pancreatic duct injuries comprise highly complex surgical procedures.

PATIENTS AND METHODS

We retrospectively analyzed clinical data from 12 patients who underwent surgery in two tertiary centers in Germany during 2003-2016 for grade III-V PT with affection of the main pancreatic duct, according to the AAST classification.

RESULTS

The median age was 23 (range: 7-44) years. In nine patients blunt abdominal trauma was the reason for PT, whereas penetrating trauma only occurred in three patients. MRI outperformed classical trauma CT imaging with regard to detection of duct involvement. Complex procedures as i.e. an emergency pancreatic head resection, distal pancreatectomy or parenchyma sparing pancreatogastrostomy were performed. Compared to elective pancreatic surgery the complication rate in the emergency setting was higher. Yet, parenchyma-sparing procedures demonstrated safety.

CONCLUSIONS

Often extension of diagnostics including MRI and/or ERP at an early stage is necessary to guide clinical decision-making. If, due to main duct injuries, surgical therapy for PT is required, we suggest consideration of an organ preservative pancreatogastrostomy in grade III/IV trauma of the pancreatic body or tail.

Patients at High Risk of Intervention for Pediatric Traumatic Liver Injury

OBJECTIVES

Nonoperative management of hemodynamically stable liver lacerations in pediatric trauma patients is a safe and effective management strategy for pediatric patients; approximately 90% will be successfully managed nonoperatively. No study has specifically identified risk criteria for the need for intervention versus observation alone. Our objective for this study was to determine risk factors from the physical examination, computed tomography scan, and laboratory results associated with intervention for liver laceration.

METHODS

We performed a retrospective cohort study using data from the Pediatric Emergency Care Applied Research Network Intra-abdominal Injuries Study public use data set. Data were collected prospectively at the time of enrollment; a limited data set was released for public use in 2014. Patients were included if they were diagnosed with a liver laceration by computed tomography scan. We used bivariable and multivariable analyses to determine associations of specific risk factors with intervention, defined as laparotomy, angiographic embolization, blood transfusion, death, or return to emergency department for any reason within 30 days.

RESULTS

Of the 12,044 patients in the Intra-abdominal Injuries Study, 282 were diagnosed with a liver laceration. All patients were hospitalized, and 99 (35.1%) underwent an intervention. Variables were then eliminated if more than 10% of cases were missing data. Multivariable logistic regression identified the following independent risk factors for intervention: white blood cell count greater than 15 K/mcl (adjusted odds ratio [adjOR], 2.83; 95% confidence interval [CI], 1.43-5.63), pelvic fracture (adjOR, 2.50; 95% CI, 1.02-6.10), liver injury greater than grade 2 (adjOR, 2.16; 95% CI, 1.06-4.40), Glasgow Coma Scale score less than 15 (adjOR, 4.77; 95% CI, 2.27-7.63), and hematocrit less than 32% (adjOR, 4.79; 95% CI, 2.00-11.46).

CONCLUSIONS

We identified 5 high-risk criteria associated with intervention for traumatic liver laceration in pediatric patients. Prospective studies are necessary to validate these results before using them to determine disposition of pediatric patients with traumatic liver injuries.

Evaluation of intra-abdominal solid organ injuries in children

AIM

In our study we investigated characteristics and degree of intra-abdominal solid organ injuries according to tomographic imaging in pediatric patients who presented to our emergency clinic with possible abdominal injuries and to whom US and/or abdominal tomography were applied.

MATERIALS AND METHODS

1066 pediatric patients were included in the study. The age, gender, injury localization, injury type, injury mechanism, abdominal US and CT results, and treatment specifics of patients were evaulated.

RESULTS

58.5% of cases were male. Average age of children was 7.1±4.6 70.8% of the injuries occured in the outdoors. As for injury type, 92.8% of the injuries were blunt and 7.2% were penetrating traumas. The most common mechanism of injury was motor vehicle accidents at 41.4%. The most common abdominal physical examination finding was tenderness with a prevelance of 67%. In patients with solid organ injury, liver injury was detected in 47% of patients, spleen injury was detected in 36% of patients and renal injury was detected in 17% of patients. Grade II injury was the most common grade. 96.5 of patients were provided conservative treatment and 3.5% of patients were treated surgically.

CONCLUSION

Solid organ injuries due to abdominal trauma in children are generally related to blunt trauma and are severe injuries. CT angio is an important imaging method for detecting solid organ injuries, classification of the injury and treatment determination. Greater than 90% of solid organ injuries in children can be treated successfully with conservative methods.

To save a child's spleen: 50 years from Toronto to ATOMAC

Pediatric surgeons brought forth non-operative treatment for children with blunt spleen injury more than 50 years ago. At the time, this proposal was deemed reckless by many adult surgeons, and debate ensued for decades. Despite criticisms, pediatric surgeons refined the clinical pathways for children with spleen injury leading to current safe and efficient outcomes. These outcomes are defined by rare splenectomies, few blood transfusions, and short length of hospital stay. This review will address the role of the spleen through historical perceptions and scientific evidence. In addition, evolution of contemporary clinical pathways will be outlined.

Minimizing variance in Care of Pediatric Blunt Solid Organ Injury through Utilization of a hemodynamic-driven protocol: a multi-institution study

BACKGROUND

An expedited recovery protocol for management of pediatric blunt solid organ injury (spleen, liver, and kidney) was instituted across two Level 1 Trauma Centers, managed by nine pediatric surgeons within three hospital systems.

METHODS

Data were collected for 18months on consecutive patients after protocol implementation. Patient demographics (including grade of injury), surgeon compliance, National Surgical Quality Improvement Program (NSQIP) complications, direct hospital cost, length of stay, time in the ICU, phlebotomy, and re-admission were compared to an 18-month control period immediately preceding study initiation.

RESULTS

A total of 106 patients were treated (control=55, protocol=51). Demographics were similar among groups, and compliance was 78%. Hospital stay (4.6 vs. 3.5days, p=0.04), ICU stay (1.9 vs. 1.0days, p=0.02), and total phlebotomy (7.7 vs. 5.3 draws, p=0.007) were significantly less in the protocol group. A decrease in direct hospital costs was also observed ($11,965 vs. $8795, p=0.09). Complication rates (1.8% vs. 3.9%, p=0.86, no deaths) were similar.

CONCLUSIONS

An expedited, hemodynamic-driven, pediatric solid organ injury protocol is achievable across hospital systems and surgeons. Through implementation we maintained quality while impacting length of stay, ICU utilization, phlebotomy, and cost. Future protocols should work to further limit resource utilization.

TYPE OF STUDY

Retrospective cohort study.

LEVEL OF EVIDENCE

Level II.

Evolution of the treatment of splenic injuries: from surgery to non-operative management

The spleen is one of the most frequently injured organs in blunt abdominal trauma. In the past decades, the treatment of patients with blunt splenic injury has shifted from operative to non-operative management. The knowledge of physiology and immunology of the spleen have been the main reasons to develop techniques for splenic salvage. The advances in high-resolution imaging techniques, as well as less invasive procedures, including angiography and angioembolization, have allowed a higher rate of success in the non-operative management. Non-operative management has showed a decrease in overall mortality and morbidity. The aim of this article is to analyze the current management of splenic injury based on a literature review of the last 30 years, from we have identified 63,205 patients. This would enable the surgeons to provide the best care possible in every case.

Comparison of pediatric motor vehicle collision injury outcomes at Level I trauma centers

OBJECTIVE

Examine the association of American College of Surgeons Level I pediatric trauma center designation with outcomes of pediatric motor vehicle collision-related injuries.

METHODS

Observational study of the 2009-2012 National Trauma Data Bank, including n=28,145 patients <18years directly transported to a Level I trauma center. Generalized estimating equations estimated odds ratios (ORs) for injury outcomes, comparing freestanding pediatric trauma centers (PTCs) with adult centers having added Level I pediatric qualifications (ATC+PTC) and general adult trauma centers (ATC). Models were stratified by age following PTC designation guidelines, and adjusted for demographic and clinical risk factors.

RESULTS

Analyses included n=16,643 children <15 and n=11,502 adolescents 15-17years. Among children, odds of laparotomy (OR=1.88, 95% CI 1.28-2.74) and pneumonia (OR=2.13, 95% CI 1.32-3.46) were greater at ATCs vs. freestanding PTCs. Adolescents treated at ATC+PTCs or ATCs experienced greater odds of death (OR=2.18, 95% CI 1.30-3.67; OR=1.98, 95% CI 1.37-2.85, respectively) and laparotomy (OR=4.33, 95% CI 1.56-12.02; OR=5.11, 95% CI 1.92-13.61, respectively).

CONCLUSIONS

Compared with freestanding PTCs, children treated at general ATCs experienced more complications; adolescents treated at ATC+PTCs or general ATCs had greater odds of death. Identification and sharing of best practices among Level I trauma centers may reduce variation in care and improve outcomes for children.

Splenic artery embolization: technically feasible but not necessarily advantageous

Background

The spleen is the second most commonly injured organ in cases of abdominal trauma. Management of splenic injury depends on the clinical status of the patient and can include nonoperative management (NOM), splenic artery embolization (SAE), surgery (operative splenic salvage or splenectomy), or a combination of these treatments. In nonoperatively managed cases, SAE is sometimes used to control haemorrhage. However, the indications for SAE have not been clearly defined and, in some cases, the potential complications of the procedure may outweigh its benefits.

Review of the literature

Through review of the literature we address the question of when SAE is indicated in combination with NOM of splenic injury, and whether SAE may delay needed surgical treatment in some cases. This systematic review highlighted the use of imperfect and inconsistent scoring systems in the diagnosis of splenic injury, the lack of consensus regarding indications for SAE, and the potential for severe morbidities associated with this procedure. Based on current literature and evidence we provide a new, non-verified, decision algorithm.

Conclusions

NOM+ SAE involves potential risks and operative management may be preferable to SAE for certain patients. To clarify current literature, we propose a new algorithm for blunt abdominal trauma that should be validated prospectively. New evidence-based protocols should be developed to guide diagnosis and management of patients with splenic trauma.

Electronic supplementary material

The online version of this article (doi:10.1186/s13017-016-0100-7) contains supplementary material, which is available to authorized users.

Practice variability exists in the management of high-grade pediatric pancreatic trauma

PURPOSE

Management of high-grade pancreatic trauma in children is controversial, although recent evidence supports early operation. We sought to evaluate whether practice variability exists regarding the management of these rare and complex injuries.

METHODS

A study group of pediatric trauma centers within the Pediatric Trauma Society completed a survey following a query of their institutional database. Results are presented using descriptive statistics.

RESULTS

Over a 3-year period (2012-2014), 123 pancreatic injuries (grades II-IV) were reported from 19 pediatric trauma centers (median 6, range 1-22). Sixty-two injuries involving injury to the pancreatic duct (clear/suspected) were reported (median 1, range 0-9). Of these, 49 % were managed with non-operative management (NOM) and 51 % with operative management. Surgeons at the majority (63 %) of institutions used both approaches. Of the operative cases, 21 % were laparoscopic. There was wide variability in clinical management of NOM patients: the most common feeding strategy was reported by 52 % of centers, percutaneous drainage of traumatic pseudocyst by 42 % and ERCP (early/after pseudocyst) by 72 %.

CONCLUSION

Wide practice variability exists among North American pediatric surgeons regarding both the initial approach to high-grade pancreatic injury and non-operative management. These results highlight the need for a prospective trial to determine the optimal strategy for these patients.

Outcomes of blunt thoracic aortic injury in adolescents

BACKGROUND

Blunt traumatic aortic injury (BTAI) is of very rare occurrence in adolescents. The purpose of our study was to assess the clinical presentation and treatment outcomes of BTAI in this subset of patients.

METHODS

We reviewed prospective data of 18 patients who were 20 years or younger with BTAI among 28,000 trauma patients from January 1993 to December 2011. Outcomes of interest were the trends on the type of repair (nonoperative [NOP], open repair [OR], or endovascular treatment [ET]) and the impact of concomitant injuries using the Injury Severity Score (ISS) on early morbidity and mortality.

RESULTS

Thirteen (72%) patients with BTAI were male with a cohort median age of 16 ± 3 years. The mechanism of trauma was car accident in 12 patients, pedestrian struck by car in 5, and motorcycle crash in 1. The total ISS was 46.2 ± 15.3 being the highest score of the thoracic component (4.6 ± 0.6) followed by the head score (4 ± 1.2). Two (11%) patients were pronounced dead in the emergency department and other 2 succumbed within 24 hr from admission. Of those 14 (78%) patients who survived longer than 24 hr, the ISS was significantly lower compared with those pronounced dead earlier (37.8 ± 10.7 vs. 59.6 ± 11.6; P = 0.0009). Ten patients (71%) underwent OR, 3 (17%) ET, and other 2 (28%) patients were treated nonoperatively. The ISS was similar among all 3 treatment groups (OR: 33 ± 8 vs. ET: 53 ± 9 vs. NOP: 51 ± 6; P = nonsignificant). No paraplegia or renal failure was noted in either ET or OR group. In-hospital and overall mortality were 21% and 39%. Of those who survived hospitalization, 8 (73%) patients were discharged home and 3 (27%) to a rehabilitation center.

CONCLUSIONS

The incidence of BTAI is very low in adolescents. Mortality rate is considerable even in young patients and it is associated with high ISS and degree of aortic wall disruption. Young patients with BTAI who survive hospitalization have a lower ISS and are often discharged home rather than to a rehabilitation facility.

Non-operative versus operative treatment for blunt pancreatic trauma in children

BACKGROUND

Pancreatic trauma in children is a serious condition with high morbidity. Blunt traumatic pancreatic lesions in children can be treated non-operatively or operatively. For less severe, grade I and II, blunt pancreatic trauma a non-operative or conservative approach is usually employed. Currently, the optimal treatment, of whether to perform operative or non-operative treatment of severe, grade III to V, blunt pancreatic injury in children is unclear.

OBJECTIVES

To assess the benefits and harms of operative versus non-operative treatment of blunt pancreatic trauma in children.

SEARCH METHODS

We searched the Cochrane Injuries Group's Specialised Register, Cochrane Central Register of Controlled Trials (Issue 5, 2013), MEDLINE (OvidSP), EMBASE (OvidSP), ISI Web of Science (SCI-EXPANDED and CPCI-S) and ZETOC. In addition, we searched bibliographies of relevant articles, conference proceeding abstracts and clinical trials registries. We conducted the search on the 21 June 2013.

SELECTION CRITERIA

We planned to select all randomised clinical trials investigating non-operative versus operative treatment of blunt pancreatic trauma in children, irrespective of blinding, publication status or language of publication.

DATA COLLECTION AND ANALYSIS

We used relevant search strategies to obtain the titles and abstracts of studies that were relevant for the review. Two review authors independently assessed trial eligibility.

MAIN RESULTS

The search found 83 relevant references. We excluded all of the references and found no randomised clinical trials investigating treatment of blunt pancreatic trauma in children.

AUTHORS' CONCLUSIONS

This review shows that strategies regarding non-operative versus operative treatment of severe blunt pancreatic trauma in children are not based on randomised clinical trials. We recommend that multi-centre trials evaluating non-operative versus operative treatment of paediatric pancreatic trauma are conducted to establish firm evidence in this field of medicine.

Management of blunt pancreatic trauma in children

Blunt trauma to the abdomen accounts for the majority of abdominal injuries in children. Pancreatic injury is the fourth most common solid organ injury, following injuries to the spleen, liver and kidneys. The most common complications are the formation of pancreatic fistulae, pancreatitis and the development of pancreatic pseudocysts, which usually present several weeks after injury. The nonoperative management of minor pancreatic injury is well accepted; however, the treatment of more serious pancreatic injuries with capsular, ductal or parenchymal disruption in pediatric patients remains controversial. Based on the data presented in this literature review, although children with pancreatic injuries (without ductal disruption) do not appear to suffer increased morbidity following conservative management, patients with ductal disruption may benefit from operative intervention.

An alternative option in the management of blunt splenic injury

Splenic injury is a preventable cause of mortality following blunt trauma. The majority of splenic injuries can be managed conservatively. Laparotomy is indicated in the haemodynamically unstable patient, or those with other intra-abdominal injuries requiring surgery. Angio-embolization can be used to achieve haemostasis and preserve splenic parenchyma. The expertise and experience of the multidisciplinary trauma team and resources of the receiving facility are critical in determining the optimal management approach. We present a patient with a successful outcome following selective angio-embolization for ongoing bleeding from a Grade 4 splenic injury.

Outcomes of hemodynamically stable patients with pancreatic injury after blunt abdominal trauma

BACKGROUND

To date there is no systematical report about blunt pancreatic injury focused on hemodynamically stable patients. This study reports on our experience in this rare subgroup at a tertiary referral hospital.

METHODS

A total of 58 adult patients were identified during a 10-year period and their clinical data were analyzed. Injury to the main pancreatic duct (MPD) was basically confirmed by pancreatography or surgical findings.

RESULTS

MPD disruption was confirmed in 36 patients (62%) and was more frequent in the pancreatic neck and body. The median time from trauma to confirmation was 14 days [interquartile range (IQR) 3-23 days] including time from admission to confirmation of 10.5 days [IQR 3-20 days]. Patients with MPD injury showed higher injury severity score, more frequent pancreas-specific complications and longer hospital stays. The sensitivity and specificity of initial computed tomography (CT) for MPD injury were 63.9% (23/36) and 81.8% (18/22), respectively. The mortality rate was 7%, and all deaths were directly attributed to pancreatic injury. Complications occurred in 22 patients (37%) and 17 developed during hospitalization. Time from trauma to confirmation of MPD disruption (odds ratio 1.132; 95% confidence interval 1.021-1.255, P=0.019) was the only independent factor associated with unfavorable events among patients with high-grade injury.

CONCLUSIONS

MPD injury was not infrequent in hemodynamically stable patients. Physicians were more responsible for the delay in diagnosis of MPD disruption, which was primarily associated with adverse outcomes. A rapid, multidisciplinary approach may lead to better outcomes in hemodynamically stable patients with blunt pancreatic injury.

Blunt pancreatic trauma in children

PURPOSE

To report our experience with blunt pancreatic trauma in pediatric patients and evaluate several various management strategies.

METHODS

Ten children admitted over the last 10 years with pancreatic blunt trauma were included in the present series.

RESULTS

The average time from injury to hospital admission was 2.4 days. All injuries resulted from accidents: bicycle handlebar injuries (5), being kicked by a horse (2), falls from a height (2), and injury sustained during closure of an electric gate (1). Additional systemic and abdominal injuries were recorded in 7 patients. The amylase levels at the time of patient admission were normal in 3 patients, mildly raised in 4 patients, and elevated in 3 patients. Abdominal computed tomography was performed in 10 patients, ultrasonography in 5, and endoscopic retrograde cholangiopancreatography (ERCP) in 4. Pancreatic injuries comprised 4 grade I, 3 grade II, and 3 grade III injuries. Grade I and II injuries were successfully managed by conservative treatment. The 3 children with grade III trauma and pancreatic ductal injury in the neck (1), body (1), and tail (1) of the gland were surgically treated, having an uneventful postoperative stay of 8-14 days and no complications during the 1-year follow-up period.

CONCLUSION

The present study supports early ERCP as an essential part of the initial patient evaluation when pancreatic transection is highly suspected.

Subtle Radiological Features of Splenic Avulsion following Abdominal Trauma

Splenic trauma in children following blunt abdominal injury is usually treated by nonoperative management (NOM). Splenectomy following abdominal trauma is rare in children. NOM is successful as in the majority of instances the injury to the spleen is contained within its capsule or a localised haematoma. Rarely, the spleen may suffer from an avulsion injury that causes severe uncontrollable bleeding and necessitates an emergency laparotomy and splenectomy. We report two cases of children requiring splenectomy following severe blunt abdominal injury. In both instances emergency laparotomy was undertaken for uncontrollable bleeding despite resuscitation. The operating team was unaware of the precise source of bleeding preoperatively. Retrospective review of the computed tomography (CT) scans revealed subtle radiological features that indicate splenic avulsion. We wish to highlight these radiological features of splenic avulsion as they can help to focus management decisions regarding the need/timing for a laparotomy following blunt abdominal trauma in children.

Blunt assault is associated with failure of nonoperative management of the spleen independent of organ injury grade and despite lower overall injury severity

OBJECTIVE

Nonoperative management (NOM) of blunt splenic injuries has become standard of care for its high success rate. We observe that many blunt assault (BA) patients fail NOM despite lower overall injury severity. We performed this study to determine whether BA is independently associated with failed initial NOM (FiNOM) of splenic injuries.

METHODS

Using the Trauma Registry at our level I center, we reviewed data of all patients with blunt splenic injuries, who did not undergo immediate operative management of the spleen, admitted from January 1, 1992 to December 31, 2007. Initial NOM was defined as any patient who did not undergo immediate (< or =12 hours after admission) operative intervention for the spleen or did not undergo operation for the spleen at any time during the admission. FiNOM was defined as any patient who underwent operative management of the spleen greater than 12 hours after admission. Logistic regression was performed to determine whether BA was independently associated with FiNOM.

RESULTS

FiNOM occurred in 57 of the 419 (13.6%) patients initially managed nonoperatively. FiNOM decreased significantly in non-BA patients from 15.8% (1992-1999) to 6.2% (2005-2007) (p = 0.05) over time. This was not true for BA patients (33.3% vs. 30%) (p = 0.78). FiNOM for BA patients was 36.1% (13 of 36) versus 11.5% (44 of 383) for all other mechanisms combined. FiNOM was increased across all Organ Injury Scale scores for the spleen in BA patients. BA was independently associated with FiNOM.

CONCLUSIONS

BA is associated with FiNOM independent of severity of splenic injury. Despite an increasingly successful policy of NOM in all blunt splenic injuries, this does not apply for BA. BA should be an important factor considered when initial NOM is contemplated for blunt splenic injury because of the high failure rates compared with all other mechanisms.

Review of the evidence on the management of blunt renal trauma in pediatric patients

Due to the size and location within the pediatric patient, the kidneys are susceptible to injury from blunt trauma. While it is clear that the goal of management of blunt renal trauma in children is renal preservation, the methods of achieving this goal have not been well established in the current literature. Therefore, we have set out to summarize and clarify the current published information on the management strategies for blunt renal trauma in children. While there is extensive literature available, it consists mostly of retrospective series documenting widely varied management styles. The purpose of this review is to display the current information available and delineate the role for future studies that may allow us to develop consistent management strategies of pediatric patients, who have sustained blunt renal trauma, in a safe and cost-effective manner.

Imaging and transcatheter arterial embolization for traumatic splenic injuries: review of the literature

The spleen is the most commonly injured visceral organ in blunt abdominal trauma in both adults and children. Nonoperative management is the current standard of practice for patients who are hemodynamically stable. However, simple observation alone has been reported to have a failure rate as high as 34%; the rate is even higher among patients with high-grade splenic injuries (American Association for the Surgery of Trauma [AAST] grade III-V). Over the past decade, angiography with transcatheter splenic artery embolization, an alternative nonoperative treatment for splenic injuries, has increased splenic salvage rates to as high as 97%. With the help of splenic artery embolization, success rates of more than 80% have also been described for high-grade splenic injuries. We discuss the role of computed tomography and transcatheter splenic artery embolization in the diagnosis and treatment of blunt splenic trauma. We review technical considerations, indications, efficacy and complication rates. We also propose an algorithm to guide the use of angiography and splenic embolization in patients with traumatic splenic injury.

Percutaneous injection therapy for blunt splenic trauma guided by contrast-enhanced ultrasonography

OBJECTIVE

The purpose of this study was to investigate the application of contrast-enhanced ultrasonography (CEUS) in managing blunt splenic trauma and the effectiveness of CEUS-guided percutaneous injection therapy.

METHODS

Six patients with grade 3 or 4 splenic injuries as determined by CEUS and contrast-enhanced computed tomography were given hemocoagulase atrox and absorbable cyanoacrylate percutaneously, which were injected into the injury region and active bleeding site, respectively, under CEUS guidance. Immediately after the procedure and 1 and 3 days, 1 and 2 weeks, and 1 and 6 months after the procedure, follow-up CEUS up was performed in all patients.

RESULTS

Among the 6 patients, 4 cases of CEUS-guided hemostatic injection were successful without complications. Rehemorrhage occurred in 1 patient, and a traumatic arteriovenous fistula occurred in another; repeated injection therapy in these 2 patients was effective. During the follow-up, there were no complications, and spleen perfusion recovered gradually.

CONCLUSIONS

Contrast-enhanced ultrasonography can be used to guide percutaneous injection therapy and therefore achieve the goal of using interventional ultrasonography in managing splenic trauma.

[Current treatment of hepatic trauma]

The therapeutic and diagnostic approach of liver trauma injuries (by extension, of abdominal trauma) has evolved remarkably in the last decades. The current non-surgical treatment in the vast majority of liver injuries is supported by the accumulated experience and optimal results in the current series. It is considered that the non-surgical treatment of liver injuries has a current rate of success of 83-100%, with an associated morbidity of 5-42%. The haemodynamic stability of the patient will determine the applicability of the non-surgical treatment. Arteriography with angioembolisation constitutes a key technical tool in the context of liver trauma. Patients with haemodynamic instability will need an urgent operation and can benefit from abdominal packing techniques, damage control and post-operative arteriography. The present review attempts to contribute to the current, global and practical management in the care of liver trauma.

Do the American College of Surgeons’ “Major Resuscitation” Trauma Triage Criteria Predict Emergency Operative Management?

STUDY OBJECTIVE

We wish to assess whether individual or collective American College of Surgeons' "major resuscitation" criteria accurately identify injured patients who receive emergency operative treatment.

METHODS

In this observational secondary registry analysis of 8,289 consecutive trauma team activations during a 7.5-year period, we evaluated the test performance of 5 American College of Surgeons' major criteria in predicting emergency (within 1 hour) operative management by general (for adults) or pediatric (for children) surgeons.

RESULTS

In adults, the individual major resuscitation criteria each predicted emergency operative management as follows (sorted from highest to lowest test performance): gunshot wounds to the neck or torso (likelihood ratio positive [LR+] 7.5; 95% confidence interval [CI] 6.2 to 9.1); confirmed hypotension (LR+ 5.3; 95% CI 4.0 to 7.1); interhospital transfers requiring blood transfusions (LR+ 4.6; 95% CI 2.6 to 8.2); respiratory compromise (LR+ 2.9; 95% CI 2.2 to 3.7), and Glasgow Coma Scale score less than 8 (LR+ 2.1; 95% CI 1.6 to 2.7). The collective strategy of using any of these 5 criteria exhibited a LR+ of 3.5 (95% CI 3.2 to 3.8), sensitivity 82% (95% CI 75% to 87%), and specificity 76% (95% CI 75% to 77%). Our findings in children were similar, but their precision was limited by the low baseline prevalence of emergency operative intervention.

CONCLUSION

These 5 American College of Surgeons-mandated major resuscitation criteria vary several-fold in their individual ability to predict emergency operative management and collectively exhibit modest test characteristics for this purpose. Selective use of these criteria or revisions thereof could result in more efficient secondary trauma triage. Our results do not support the existing obligatory use of these criteria to maintain American College of Surgeons trauma center certification.

Trauma surgeons practice what they preach: The NTDB story on solid organ injury management

BACKGROUND

Recent studies advocate a nonoperative approach for hepatic and splenic trauma. The purpose of this study was to determine whether the literature has impacted surgical practice and, if so, whether or not the overall mortality of these injuries had changed.

METHODS

The American College of Surgeons' National Trauma Data Bank (NTDB 4.0) was analyzed using trauma admission dates ranging from 1994 to 2003. All hepatic and splenic injuries were identified by ICD-9 codes. As renal trauma management has not changed during the study period, renal injuries were included as a control. Nonoperative management (NOM) rates and overall mortality were determined for each organ. Proportions were compared using chi analysis with significance set at p < 0.05.

RESULTS

There were 87,237 solid abdominal organ injuries reported and included: 35,767 splenic, 35,510 hepatic, 15,960 renal injuries. There was a significant (p < 0.00000000005) increase in percentage of NOM for hepatic and splenic trauma whereas renal NOM remained stable for the study period. Despite an increase in NOM for splenic and hepatic injuries, mortality has remained unchanged.

CONCLUSIONS

This study demonstrates that the management of hepatic and splenic injuries has significantly changed in the past 10 years with no appreciable effect on mortality. NOM has become the standard of care for the management of hepatic and splenic trauma. The NTDB can be used to monitor changes in trauma care in response to new knowledge regarding improved outcomes.

Selective nonoperative management of blunt abdominal trauma

The management of patients with blunt abdominal trauma has evolved over the past two decades with increasing reliance on a non-operative approach. An in-depth understanding of the clinical and radiographic parameters used to determine those who may be eligible for this form of treatment is an essential component of modern trauma care. This case-based review highlights critical aspects of non-operative management and provides a framework for the role of the emergency medicine provider.

A new spleen-preserving technique using radiofrequency ablation technology

BACKGROUND

Splenic salvage is the ultimate goal of the treatment for splenic injury. We experimentally investigated a spleen salvage technique after spleen injury using radiofrequency ablation technology.

METHODS

A grade IV spleen trauma was produced in 10 white male Landrace pigs (the lower pole of the spleen was sharply divided at the level where the lower hilar vessel enters the organ) under general anesthesia. A Radionics Cooltip Radio Frequency needle was used to stop the bleeding in every case. The electrode was inserted in four to six different sites and each session lasted for 2 to 6 minutes.

RESULTS

All bleeding sites were controlled intraoperatively with no additional means. Postoperatively, all animals appeared clinically healthy, and at the time the animals were killed, no blood, pus, or other fluid was identified in the abdomen or chest. Subcapsular or perisplenic hematomas were not found either.

CONCLUSION

We believe that radiofrequency ablation may be used in splenic injury to stop bleeding, especially when blood transfusion or surgery is indicated. This procedure may reduce the frequency of open surgery for repair of the injury, the number of splenectomies, and the amount of blood transfusion required. The advantage of use under ultrasound or computed tomographic guidance or laparoscopically makes it even more appealing. Thus, we suggest that further study in human subjects is required to validate our results.

Nonoperative management of traumatic splenic injuries: is there a role for proximal splenic artery embolization?

OBJECTIVE

The objective of our study was to evaluate our experience with transcatheter proximal (i.e., main) splenic artery embolization (TPSAE) in the nonsurgical management of patients with grade III-V splenic injuries, according to the American Association for the Surgery of Trauma (AAST) guidelines, and patients with splenic injuries associated with CT evidence of active contrast extravasation or blush (or cases meeting both criteria).

MATERIALS AND METHODS

The records of patients with traumatic splenic injuries admitted during a 52-month period were retrospectively reviewed for patient age and sex, mechanism of injury, injury severity score (ISS), RBC transfusion requirements, AAST splenic injury CT grade, presence of active contrast extravasation or blush on CT examination, and amount of hemoperitoneum on CT examination. Demographics, CT findings, transfusion requirements, and outcome were compared using the Student's t test or chi-square test in patients undergoing standard nonoperative management and nonoperative management TPSAE-that is, TPSAE followed by nonoperative management.

RESULTS

Of the 79 identified patients with splenic trauma, 67 were managed nonoperatively. Thirty-seven patients (28 men, nine women; mean age, 40 years; mean ISS, 28.8) underwent nonoperative management TPSAE and 30 patients (27 men, three women; mean age, 37 years; mean ISS, 25.1) underwent nonoperative management. Age, sex, and ISS were not significantly different between the two groups. TPSAE was always technically feasible. Splenic injuries were significantly more severe in the nonoperative management TPSAE group than in the nonoperative management group with respect to the mean splenic injury AAST CT grade (3.7 vs 2, respectively; p < 0.0001), active contrast extravasation or blush (38% [14/37] vs 3% [1/30], respectively; p = 0.0005), and hemoperitoneum grade (1.6 vs 0.8, respectively; p = 0.0006). Secondary splenectomy rate was lower in the nonoperative management TPSAE group (2.7% [1/37] vs 10% [3/30]). No procedure-related complications were encountered during early and delayed clinical follow-up.

CONCLUSION

TPSAE is a feasible and safe adjunct to observation in the nonoperative management of severe traumatic splenic injuries. The secondary splenectomy rate using nonoperative management TPSAE (2.7%) is among the lowest reported despite a selection of severe injuries.

Splenic arterial interventions: anatomy, indications, technical considerations, and potential complications

Splenic arterial interventions are increasingly performed to treat various clinical conditions, including abdominal trauma, hypersplenism, splenic arterial aneurysm, portal hypertension, and splenic neoplasm. When clinically appropriate, these procedures may provide an alternative to open surgery. They may help to salvage splenic function in patients with posttraumatic injuries or hypersplenism and to improve hematologic parameters in those who otherwise would be unable to undergo high-dose chemotherapy or immunosuppressive therapy. Splenic arterial interventions also may be performed to exclude splenic artery aneurysms from the parent vessel lumen and prevent aneurysm rupture; to reduce portal pressure and prevent sequelae in patients with portal hypertension; to treat splenic artery steal syndrome and improve liver perfusion in liver transplant recipients; and to administer targeted treatment to areas of neoplastic disease in the splenic parenchyma. As the use of splenic arterial interventions increases in interventional radiology practice, clinicians must be familiar with the splenic vascular anatomy, the indications and contraindications for performing interventional procedures, the technical considerations involved, and the potential use of other interventional procedures, such as radiofrequency ablation, in combination with splenic arterial interventions. Familiarity with the complications that can result from these interventional procedures, including abscess formation and pancreatitis, also is important.

Clinical decision rules for secondary trauma triage: predictors of emergency operative management

STUDY OBJECTIVE

Most injured patients taken by ambulance to hospital emergency departments do not require emergency surgery, yet most US trauma centers require a surgeon to be present on their arrival. If a clinical decision rule could be developed to accurately identify which injured patients require emergency operative intervention, then such "secondary triage" criteria could permit a trauma center to more efficiently use their surgeons' time.

METHODS

We analyzed 7.5 years of data (8,289 consecutive trauma activations) in our prospectively maintained Level I trauma center registry. We used classification and regression tree analyses to generate clinical decision rules using standard out-of-hospital variables to identify emergency operative intervention (within 1 hour) by a general surgeon (for adults) or a pediatric surgeon (if < or =14 years).

RESULTS

Emergency operative intervention occurred in 3.0% of adults and 0.35% of children. For adults, summoning a surgeon for any one of 3 criteria (penetrating mechanism, systolic blood pressure <96 mm Hg, pulse rate >104 beats/min) could reduce surgeon calls by 51.2% while failing to identify emergency operative intervention in only 0.08% (rule sensitivity 97.2% and specificity 48.6%). For children, no rule at all (ie, never automatically summoning a surgeon) would fail to identify emergency operative intervention in only 0.35% of patients, and use of a single criterion (penetrating mechanism) would reduce surgeon calls by 96.2% while failing to identify emergency operative intervention in only 0.09% (rule sensitivity 75.0% and specificity 96.5%).

CONCLUSION

We have derived simple decision rules for trauma centers that, if validated, could substantially reduce the need for routine surgeon presence on trauma patient arrival. These rules demonstrate low false-negative rates.

Pediatric splenic injuries with a contrast blush: successful nonoperative management without angiography and embolization

BACKGROUND

The presence of a contrast blush on computed tomography (CT) in adult splenic trauma is a risk factor for failure of nonoperative management. Arterial embolization is believed to reduce this failure rate. The significance of a blush in pediatric trauma is unknown. The authors evaluated the outcome of children with blunt splenic trauma and contrast extravasation.

METHODS

The trauma registry was queried for all pediatric patients with blunt splenic injuries. Admission CT was reviewed for injury grade and presence of an arterial blush by a radiologist blinded to patient outcome. Hospital and office charts were reviewed for success of nonoperative management, late splenic rupture, and other complications.

RESULTS

One hundred seven children with blunt splenic trauma were identified over a 6-year period. Mean injury grade was 2.9. Six patients required emergency splenectomy. An additional 7 patients met hemodynamic criteria for surgical intervention (3 splenectomies, 4 splenorrhaphies). Admission CT was available in 63 patients. An arterial blush was identified in 5 (9.7%). Four remained stable and were treated conservatively. One underwent splenectomy for hemodynamic instability. There were no cases of delayed splenic rupture, failed nonoperative treatment, or long-term complications.

CONCLUSIONS

Contrast blush in children with blunt splenic trauma is rare, and its presence alone does not appear to predict delayed rupture or failure of nonoperative treatment. Based on this limited series, splenic artery embolization does not have a place in the management of splenic injuries in children.

The national pediatric trauma registry: a legacy of commitment to control of childhood injury

The National Pediatric Trauma Registry represents almost 15 years of effective collaboration among hospitals committed to improving care for the injured child. Its design of providing a "physiologic snapshot" of the injured child on presentation has supported numerous studies that have helped define the epidemiology of childhood injury and refine principles of management. Global analysis of the 103,434 records included in this database suggest that mortality is significantly higher in the very young, that vehicular injury remains a major pediatric public health challenge, and that shock is just as devastating in the child as the adult. Based on this foundation of collaborative commitment, future versions of a pediatric trauma database must harness the emerging internet technology that combines information accrual with human thought, and must extend this effort to include all the children of our world.

Traumatic hematuria in children can be evaluated as in adults

PURPOSE

Controversy exists regarding whether children who present with blunt abdominal trauma and microhematuria should undergo renal imaging. Adult blunt trauma victims who present without gross hematuria, shock, or significant deceleration or other major associated injuries do not require renal imaging. This study was designed to evaluate whether the criteria for imaging the renal parenchyma in adult blunt trauma victims apply to the pediatric population.

MATERIALS AND METHODS

We retrospectively reviewed 720 consecutive pediatric patients with suspected renal trauma to determine mechanism of injury, evaluation and treatment of subsequent injuries.

RESULTS

Of the 720 trauma patients with hematuria (mean age 8 years) 334 underwent imaging, and 59 renal injuries were identified (grade I 32, grade II 6, grade III 8, grade IV 12, grade V 1). A total of 11 patients underwent exploration, resulting in 3 nephrectomies (grade IV 2, grade V 1). Renorrhaphy was not necessary and all other cases were managed conservatively. All patients with significant renal injuries experienced either gross hematuria, shock (systolic blood pressure less than 90 mm Hg) or a significant deceleration injury.

CONCLUSIONS

The decision to image pediatric trauma cases based on the adult criteria of gross hematuria, shock and significant deceleration injury is appropriate. Among 720 pediatric cases of potential renal injury all would have been identified.

Pediatric trauma is very much a surgical disease

OBJECTIVE

The evolution of nonoperative management of certain solid visceral injuries has stimulated speculation that management of the severely injured child is no longer a surgical exercise. The authors hypothesized that the incidence of injuries that require surgical evaluation is disproportionately high in children at risk of death or disability from significant injury.

METHODS

National Pediatric Trauma Registry data were queried for all patients with ICDA-9-CM diagnoses requiring at least surgical evaluation. Selected diagnoses included CNS: 800 to 804, 850 to 854; thoracoabdominal: 860 to 870; pelvic fracture: 808; and acute vascular disruption: 900 to 904. Operative intervention was identified by ICDA-9-CM operative codes less than 60 and selected operative orthopedic codes between 79.8 and 84.4. At-risk patients were identified as those with at least one of the following: Glasgow Coma Scale score less than 15, Glasgow Coma Scale motor score less than 6, initial systolic blood pressure less than 90, or Injury Severity Scale score more than 10. The incidence of a surgical diagnosis in at-risk children was compared to the incidence in the population with no identifiable risk. Within the population undergoing surgical evaluation, resource utilization, as reflected by operative intervention and ICU days, and outcome, as reflected by mortality, were compared between the at-risk group and the group with no identifiable risk.

RESULTS

From 1987 to 2000, 87,424 records were complete enough for analysis. Of those, 48,687 (55.6%) patients sustained at least one injury requiring a surgical evaluation and 28,645 (32.7%) children were determined to be at risk. Mortality for at-risk children was 5.8% versus 0.02% for those with no identifiable risk. Of the children at risk, 24,706 (86.2%) had at least one injury requiring a surgical evaluation. Of the 58,779 children with no risk, 23,981 (40.8%) also had at least one injury requiring a surgical evaluation. Operative intervention for surgical injuries was required in 20.5% of cases (n = 10,015). Of these, 5,562 (56%) were at-risk children, and they had a mortality rate of 11.5%. Of the children not at risk, 4,453 required operative care, and they had a mortality of 0.1%. At-risk children undergoing surgery required an average of 5.02 days of ICU care compared to 1.2 for cases performed on children without risk.

CONCLUSIONS

These data clearly demonstrate the primacy of surgical pathology as the major determinant of outcome in pediatric injury. Operative intervention and the option of timely operative care remain major components of clinical management of children with injuries that pose a significant risk of morbidity or mortality.

Pleuro-pulmonary involvement in children with blunt splenic trauma

OBJECTIVE

Evaluation of the importance of pleuro-pulmonary involvement in paediatric patients with blunt splenic trauma.

METHOD

A retrospective chart review of 27 patients, aged 2-16 years, treated for blunt splenic injury between 1992 and 1999 was performed.

RESULTS

All patients except one were treated conservatively. In 12 patients (44.4%) left-sided pleuro-pulmonary involvement was diagnosed as primary traumatic injury or as a late complication. While Grade I and II splenic injuries were prevalent, pleuro-pulmonary involvement patients had a more severe degree of splenic injury. Chest pain, dyspnoea and diminished respiratory sounds were present on primary examination in patients with chest trauma. Body temperature during the first 5 post-trauma days was significantly higher among pleuro-pulmonary involvement patients. Specific pleuro-pulmonary involvement diagnoses on admission in six children with primary chest trauma were: lung contusion, pleural thickness, or haemo-pneumothorax. Three of them developed delayed pleural effusion. In the other six children with pleuro-pulmonary involvement, late complications appeared during 2-5 days post-trauma.

CONCLUSIONS

Pleuro-pulmonary involvement was observed in almost half of patients with blunt splenic trauma. Pleuro-pulmonary involvement occurred either early as a result of direct chest trauma or was delayed. High suspicion, careful monitoring of body temperature and repeated chest X-ray studies are recommended for early diagnosis and treatment of delayed pleuro-pulmonary involvement.

[Experimental and clinical possibilities of transplantation of the injured and totally devascularized spleen]

The most severe spleen lesions with conquasation and devascularisation of entire organ, when it is practically impossible to do any preservating surgical procedure, are the true indications for the transplantation of this extremely important immunological organ. We have performed the evaluation of the surgical procedure of heterotopic auto transplantation in the 30 dogs with severe spleen lesions. Simulation of totally devascularized spleen with the lesions of V degree was performed by disrupting all segmental blood vessels with deep and long longitudinal transhilar incision. During the 3 months follow-up period, animals were subjected to numerous explorations in order to macroscopically and histologically valuate the implant. In most cases (80-85%) implants had complete vitality with the preservation of normal tissue architecture, while 15-20% of implants had partial or total fibrosis. There were no mortality and no complications after this preservation procedure. The presence of fibrosis in some implants suggests that the implant preparation should be better performed and that transplantation of larger tissue volume is needed. Enriched with this experimental experience we have performed heterotopic auto transplantation in 2 patients with spleen lesion of V degree (car accident and injury at work) with very satisfactory results.

Pancreatic trauma in the adult: current knowledge in diagnosis and management

BACKGROUND/AIMS

Although pancreatic trauma, isolated or not, is uncommon, it carries significant morbidity and mortality because of the delay in recognition and consequent treatment.

METHODS

The current knowledge of pancreatic injury, concerning the incidence, mechanism of induction, diagnosis, treatment, complications and outcome, is herein presented based on a literature review and our limited experience.

RESULTS

The diagnosis of pancreatic trauma entails a high index of suspicion because neither clinical nor laboratory evaluation provide pathognomonic elements. Patients with penetrating injuries are usually evaluated during laparotomy, while those with a blunt trauma can be managed conservatively, provided they are in a stable condition, there is no pancreatic duct involvement and care is intensive. At laparotomy, minor pancreatic injuries are best managed by drainage. Distal pancreatectomy is best suited for distal pancreatic trauma with ductal involvement. For severe trauma, Roux-en-Y pancreaticojejunostomy, pancreaticogastrostomy, duodenal diversion operations and Whipple's procedure are all indicated according to the preoperative evaluation and intraoperative findings. Independent of the procedure to be performed, drainage is mandatory.

CONCLUSION

Because pancreatic injury is rare, most general surgeons lack experience and ability to deal with such injured patients. Therefore, an experienced and skilled surgeon should govern the management of pancreatic trauma in order to minimize the incidence of morbidity and mortality.

Non-operative management of solid organ trauma in children

Trauma is the commonest cause of mortality in infancy and childhood. Injuries from blunt trauma predominate, with multisystem injury, the rule. Blunt abdominal injury represents the third commonest cause of death from injury in this age group.

Initial management of the child combines assessment and resuscitation. If the child’s condition is stable then the injured organ should be definitively identified, usually by computerized tomography. Over 90% of children who are stable at this point can be managed conservatively, with a period of observation on an intensive care unit, followed by bed rest on a general ward. Instability at any point requires further resuscitation, reassessment and if necessary laparotomy. Repeated clinical assessment and radiological investigation are used to guide further management, mobilization and the return to normal activities.