Use of computed tomography in the initial evaluation of anterior abdominal stab wounds

Background

The purpose of this study was to assess the ability of computed tomography (CT) to facilitate initial management decisions in patients with anterior abdominal stab wounds.

Methods

A retrospective review was conducted of patients with anterior abdominal stab wounds who underwent CT over 4.5 years. Any abnormality suspicious for intra-abdominal injury was considered a positive finding on CT.

Results

Ninety-eight patients met the study's inclusion criteria. Positive findings on CT were noted in 30 patients (31%), leading to operative intervention in 67%. Injuries were confirmed in 95% of cases, but only 70% were therapeutic. Ten patients had nonoperative management despite positive findings on CT, including 5 patients with solid organ injuries. One patient underwent operative intervention for clinical deterioration, with negative findings. No computed tomographic evidence of injury was noted in the remaining 68 patients (69%), but 1 patient was noted to have a splenic injury while undergoing operative evaluation of the diaphragm. All remaining patients were treated nonoperatively with success.

Conclusions

In patients with anterior abdominal stab wounds, CT should be considered to facilitate initial management decisions, as it has the ability to delineate abnormalities suspicious for injury.     

Adrenal gunshot wound: Laparoscopic approach. Report of a case

INTRODUCTION

Although there is no debate that patients with peritonitis or hemodynamic instability should undergo urgent laparotomy after penetrating abdominal injury, it is also clear that certain stable patients may be managed without operation. Controversy persists regarding use of laparoscopy.

PRESENTATION OF CASE

We report a case of gunshot wounds with bullet in left adrenal gland and perirenal subcapsular hematoma. The patients had no signs of peritonitis but in the observation period we noted a significative blood loss, so we performed an exploratory laparoscopy.

DISCUSSION

We found the bullet in adrenal parenchyma. The postoperative period was regular and the patient was discharged without any local or general complication.

CONCLUSION

Although the data are still controversial, the importance of the laparoscopic approach is rapidly increasing also in case of penetrating trauma of the abdomen. This technique assumes both a diagnostic and therapeutic role by reducing the number of negative laparotomies.     

Selective clinical management of anterior abdominal stab wounds

BACKGROUND: The optimal management of clinically stable patients with anterior abdominal stab wounds (AASWs) is debated. We implemented a protocol of serial clinical assessments to determine the need for laparotomy. The purpose of this study was to determine whether the approach is safe and effective. METHODS: Records of patients sustaining AASWs from 1999 to 2003 were reviewed. RESULTS: Seventy-seven patients sustained AASWs. Twenty-five were taken directly to the operating room because of hypotension (5), evisceration (7), or peritonitis (15). Seventeen patients had diagnostic peritoneal lavage (DPL) for associated thoracoabdominal wounds and 5 had local wound exploration (LWE) off protocol. The remaining 30 patients were managed with serial clinical assessments and were discharged uneventfully. CONCLUSION: Patients sustaining AASWs who present without hypotension, evisceration, or peritonitis may be managed safely under a protocol of serial clinical evaluations. This approach should be compared with LWE/DPL in a prospective, randomized multicenter trial.     

Management of blunt splenic injury in children: evolution of the nonoperative approach

Background

Nonoperative management of blunt splenic injury (BSI) was first proposed at our institution in 1948. Since that time, treatment of patients with BSI has evolved from routine splenectomy to an aggressive spleen-preserving philosophy. This report summarizes our institutional experience for the last 50 years.

Methods

All children (0-18 years) admitted to our pediatric trauma center with BSI during 4 eras (1956-1965, 1972-1977, 1981-1986, and 1992-2006) were retrospectively reviewed for demographics, injury patterns, management, and complications.

Results

During the 4 eras captured for the last 5 decades, 486 children experienced BSI. The mean age was 10 years with 347 males (71%). Nonoperative management rate increased from 42% to 97% with improvement in splenic salvage rate (42%-99%). Mean length of stay decreased from 17 to 5 days. In patients with isolated splenic injuries (50%), nonoperative management rate increased (36%-100%) and fewer received transfusions (60%-1%). Overall mortality rate improved (19%-6.6%, 8%-0.7% in isolated injuries).

Conclusion

The management of BSI in children has changed dramatically for the last 50 years. This study clearly demonstrates the safety of nonoperative management and documents progressively lower rates of splenectomy and transfusion, shorter hospitalization, and an extremely low risk of mortality.     

Traumatic ventricular septal defect following a stab wound to the chest

A 51-year-old man who had been suffering from depression stabbed himself in the chest with an ice pick. At presentation, an ice pick lodged in the left fifth intercostal space was moving synchronously with his heartbeat. Echocardiography revealed that the tip was penetrating the anterior wall of the right ventricle. Because the patient was tamponading, an emergency operation was carried out. The ice pick was removed following the establishment of a cardiopulmonary bypass and pericardiotomy. The perforation of the right ventricle was closed with a pledget-reinforced mattress stitch. On postoperative day 12, a holosystolic murmur was detected on auscultation. Transthoracic echocardiography revealed a ventricular septal defect 5 mm in diameter located near the apex. The pulmonary-tosystemic flow ratio was 1.1 by echocardiographic measurement. No sign of heart failure was present. Although it was agreed to manage the ventricular septal defect conservatively, careful echocardiographic follow-up is mandatory.     

Nonoperative management of pelvic gunshot wounds

Background

The nonoperative management (NOM) of abdominal gunshot injuries is gradually becoming the standard of care. Patients with pelvic gunshot injuries constitute a subgroup of patients at high risk of visceral injury. The aim of this study was to assess the feasibility and safety of the selective NOM of pelvic gunshot injuries.

Patients and methods

This prospective study was performed from April 1, 2004, to November 30, 2008. Patients with pelvic gunshot injuries underwent laparotomy for peritonitis, hemodynamic instability, rectal bleeding, and urologic injuries. Patients with benign abdominal findings with hematuria underwent computed tomography scanning with intravenous contrast. Stable patients with no tenderness or minimal tenderness confined to the wound or wound tract underwent serial abdominal examination. Outcome parameters included need for delayed laparotomy, complications, length of hospital stay, and survival.

Results

During the 54-month study period, 239 patients with pelvic gunshot injuries were treated. One hundred seventy-six (73.6%) patients underwent immediate laparotomy, whereas 63 (26.4%) were selected for NOM. The nontherapeutic laparotomy rate was 4.5% in the former group, and no patient required delayed laparotomy in the latter group. Also, 3 patients with minor extraperitoneal bladder injuries were successfully managed nonoperatively. Associated injuries included mostly fractures to the bony pelvis including the iliac blade (19), pubic ramii (3), and acetabulum (3). The mean hospital stay was 2.2 (range 1–8) days in the nonoperative group of patients. There were no deaths.

Conclusions

Selective NOM of pelvic gunshot injuries is a feasible, safe, and effective alternative to routine laparotomy.     

Gluteal stab wound is a frequent and potentially dangerous injury

BACKGROUND: Stab wounds to the gluteal area are a frequent injury in an urban trauma centre. These injuries may appear innocuous but is potentially life threatening. Therefore they deserve timely evaluation and management. The purpose of this study was to evaluate our experience with this type of injury and to propose a treatment protocol. METHODS: During the last 5 years 269 patients with stab injuries, were admitted to our Department of Emergency Medicine (DEM). Thirty-nine patients (14%) who had gluteal penetration were included in this study. Patients' charts were retrospectively reviewed for demographic data, type of injury and additional injuries, evaluation, management and outcome. RESULTS: Stab wound of the gluteal region was the most frequent injury after chest and abdominal injuries. Thirty patients presented with soft tissue damage only and nine were severely injured. Seven of the severely injured patients had significant bleeding; two of them were treated by embolisation. One patient suffered a rectal injury and one a small bowel perforation, both treated surgically. There was no post-operative complication or mortality. CONCLUSIONS: Penetration of the gluteal is a potentially life threatening injury. Meticulous observation and high level of suspicion ensure early treatment and can prevent mortality.     

Natural history of nonoperative management for grade 4 and 5 liver and spleen injuries in children

Purpose

Nonoperative management is standard treatment of blunt liver or spleen injuries. However, there are few reports outlining the natural history and outcomes of severe blunt hepatic and splenic trauma. Therefore, we reviewed our experience with nonoperative management of grade 4 or 5 liver and spleen injuries.

Methods

A retrospective analysis was performed on patients with grade 4 or 5 (high-grade) blunt liver and/or spleen injuries from April 1997 to July 2007 at our children's hospital. Demographics, hospital course data, and follow-up data were analyzed.

Results

There were 74 high-grade injuries in 72 patients. There were 30 high-grade liver and 44 high-grade spleen injuries. Two patients had both a liver and splenic injury. High-grade liver injuries had a significantly longer length of intensive care and hospital stay compared to high-grade spleen injuries. There were also a significantly higher number of transfusions, radiographs, and total charges in the high-grade liver injuries when compared to the high-grade splenic injuries. The only mortality from solid organ injury was a grade 4 liver injury with portal vein disruption. In contrast, there was only one complication from a high-grade splenic injury—a pleural effusion treated with thoracentesis. There were 5 patients with complications from their liver injury requiring 18 therapeutic procedures. Three patients (10%) with liver injury required readmission as follows: one 5 times, one 3 times, and another one time.

Conclusions

Patients with high-grade liver injuries have a longer recovery, more complications, and greater use of resources than in patients with similar injuries to the spleen.     

The utility of laparoscopic evaluation of the parietal peritoneum in the management of anterior abdominal stab wounds

Background

Trauma centres vary in their approaches to managing stable patients with anterior abdominal stab wounds (AASWs), with no approach yet proven superior. We sought to evaluate the performance of screening laparoscopy (i.e., parietal peritoneal penetration or not) in determining which patients should undergo laparotomy.

Methods

We conducted a retrospective case series study, including all patients with an AASW who presented to U.C. Davis Medical Center from January 2003 through March 2009. We collected data from medical records using a standardised, pre-tested instrument. Among laparoscopically screened cases, we determined the test characteristics of peritoneal penetration for detecting intra-abdominal injury. We sub-classified injuries as “requiring treatment” (e.g., full-thickness enterotomy or active haemorrhage) or not.

Results

Of 358 patients with AASWs, 163 underwent screening laparoscopy. Seventy-eight of the 163 (48%) had no peritoneal penetration and six (4%) had peritoneal penetration but a low-risk wound; none of these 84 underwent laparotomy nor had a missed injury. Of 79 patients with peritoneal penetration who underwent laparotomy, 61 had an intra-abdominal injury, of whom 42 were treated intraoperatively. Among these 42, 30 had an injury “requiring treatment.” The PPV of peritoneal penetration for an injury requiring treatment was 38% (30/79) (95% CI 27–50%), NPV 100% (84/84) (95% CI 95–100%), sensitivity 100% (30/30) (95% CI 88–100%), and specificity 63% (84/133) (95% CI 54–71%). The negative and positive likelihood ratios were 0 (95% CI 0–0.4) and 2.7 (95% CI 2.2–3.4), respectively.

Conclusions

Screening laparoscopic evaluation of the parietal peritoneum results in a negligible rate of missed injury and an approximately 40% rate of finding an injury requiring treatment.