Bullet Embolism

When a bullet hits the body, it generally follows a straight path, and there may or may not be an exit wound. Sometimes the bullet loses its kinetic energy within a blood vessel and thus it embolizes into the cardiovascular system, either in the systemic circulation or the pulmonary circulation and we call this phenomenon a "Bullet" embolism. A thirty-five years old man with a gun shot injury on his abdomen came to hospital. There was an entry site, but no exit site. According to his plain X-ray, there was no bullet in his abdomen. Instead, the bullet was located on the right ventricle of the heart. Because there was no injury on his diaphragm and heart, we concluded that the bullet got into a blood vessel and it ran through the venous system into the heart.

Fixation of Open Alveolar Bone Fractures: Easily Applicable Method in the Emergency Department

PURPOSE: The purpose of this clinical trial was to evaluate the fixation method for treating alveolar fractures in an emergency department. METHODS: The efficiency of using the fixation method was judged on the basis of clinical criteria. Stability, occlusion state, bleeding amount after fixation, operation time, and difficulties during procedural operation were recorded. RESULTS: Eight patients were enrolled in this study. In all instances, the fixation method was effective in bleeding control. Each patient had a noticeable decrement in bleeding. A wire was used for four of the eight patients, and nylon strings was used for the others. The average operation time was 6.3 minutes for the wire patients and 2.8 minutes for the Nylon string patients. No specific problem was identified during the procedural operation. However, the difference in the fixation material influenced the effectiveness of the procedure, the operation time, and the satisfaction of the doctor. CONCLUSION: In the emergency department, the fixation method using wire or nylon string in the treatment of alveolar fractures is effective in bleeding control.

Use of a Postoperative Hepatic Arterial Embolization in Patients with Postoperative Bleeding due to Severe Hepatic Injuries

PURPOSE: Acute liver failure after massive partial hepatectomy is critical condition with high mortality. To prevent postoperative liver failure from being induced by a massive partial hepatectomy, many doctors do a minimal resection on the single lobe of the liver that might cause postoperative bleeding from the remaining ruptured parenchyma. The objective of this study was to assess clinical experience with postoperative hepatic arterial embolization to control bleeding from the remaining ruptured liver during the postoperative period. METHODS: This retrospective 4-year study was conducted from May 2002 to April 2006 and included consecutive patients who had sustained massive hepatic injuries and who had undergone a laparotomy, followed by postoperative hepatic arterial angiographic embolization to control bleeding. Data on the injury characteristics, the operative treatment and embolization, and the amount of transfused packed red cells (PRBC) were gathered and analyzed. In addition, data on the overall complications and survival rate were collected and analyzed. RESULTS: Every case showed severe liver injury, higher liver injury scaling grade IV. Only ten cases involved a ruptured bilateral liver lobe. A lobectomy was done in 6 cases, a left lobectomy was done in 3 cases, and a primary suture closure of the liver was done in 2 cases. Suture closure was also done on the remaining ruptured liver parenchyma in cases of lobectomies. The postoperative hepatic arterial embolizations were done by using the super-selection technique. There were some cases of arterio-venous malformations and anomalous vessel branches. The average amount of transfused PRBC during 24 hours after embolization was 2.36+/-1.75, which statistically significantly lower than that before embolization. Among the 11 cases, 9 patients survived, and 2 died. There was no specific complications induced by the embolization. CONCLUSION: In cases of postoperative bleeding in severe hepatic injury, if there is still a large amount of bleeding, postoperative hepatic arterial embolization might be a good therapeutic option.

Use of Color Doppler and Sensitivity of Different Sites of Examination in Diagnosing Pneumothorax

PURPOSE: Thoracic ultrasonography (US) is an emerging tool for diagnosing pneumothorax (PTX), and the possible application of color Doppler to ultrasonography is another new development. The aim of this study is to analyze the possible contribution of color Doppler to thoracic US and to the estimation of pneumothorax volume. METHODS: Patients who were admitted to emergency department underwent chest X-ray and thoracic US with color Doppler. They were also evaluated by computed tomography, if needed, US was performed at four chest sites by emergency medicine faculty and resident, and concordance between color Doppler and lung sliding was analyzed. The number of sites with abnormal findings was correlated with the volume of PTX at each sites. Statistical analysis was performed with Pearson correlation. RESULTS: Sixty-three of 151 PTX cases were included in our study. The sensitivity of US was for PTX detection was 92.1% (58 of 63), and the concordance between color Doppler and lung sliding was 99.4%. The number of sites per patient with abnormal findings increased with the average volume of the PTX. The average PTX volume in the 5 cases with normal findings was 7.0%, which is a smallsized PTX. CONCLUSION: The use of color Doppler is not more accurate than lung sliding, but it may helpful in diagnosing PTX. The volume of a PTX is proportional to a patient's number of sites with abnormal US findings.