Predictors of blunt abdominal aortic injury in trauma patients and mortality analysis.

OBJECTIVE: Blunt abdominal aortic injury (BAAI) occurs in less than 0.1% of blunt traumas. A previous multi-institutional study found an associated mortality rate of 39%. We sought to identify risk factors for BAAI and risk factors for mortality in patients with BAAI using a large national database. We hypothesized that an Injury Severity Score of 25 or greater, and thoracic trauma would both increase the risk of mortality in patients with BAAI. METHODS: The Trauma Quality Improvement Program (2010-2016) was queried for individuals with blunt trauma. Patients with and without BAAI were compared. Covariates were included in a multivariable logistic regression model to determine mechanisms of injury, examination findings, and concomitant injuries associated with increased risk for BAAI. An additional multivariable analysis was performed for mortality in patients with BAAI. RESULTS: From 1,056,633 blunt trauma admissions, 1012 (0.1%) had BAAI. The most common mechanism of injury was motor vehicle accident (MVA; 57.5%). More than one-half the patients had at least one rib fracture (54.0%), or a spine fracture (53.9%), whereas 20.8% had hypotension on admission and 7.8% had a trunk abrasion. The average length of stay was 13.4 days and 24.6% required laparotomy, with 6.6% receiving an endovascular repair and 2.9% an open repair. The risk of death in those treated with endovascular vs open repair was similar (P = .28). On multivariable analysis, MVA was the mechanism associated with the highest risk of BAAI (odds ratio [OR], 4.68; 95% confidence interval [CI], 3.87-5.65; P < .001) followed by pedestrian struck (OR, 4.54; 95% CI, 3.47-5.92; P < .001). Other factors associated with BAAI included hypotension on admission (OR, 3.87; 95% CI, 3.21-4.66; P < .001), hemopneumothorax (OR, 3.67; 95% CI, 1.16-11.58; P < .001), abrasion to the trunk (OR, 1.49; 95% CI, 1.15-1.94; P = .003), and rib fracture (OR, 1.46; 95% CI, 1.25-1.70; P < .001). The overall mortality rate was 28.0%. Of the variables examined, the strongest risk factor associated with mortality in patients with BAAI was hemopneumothorax (OR, 12.49; 95% CI, 1.25-124.84; P = .03) followed by inferior vena cava (IVC) injury (OR, 12.05; 95% CI, 2.80-51.80; P < .001). CONCLUSIONS: In the largest nationwide series to date, BAAI continues to have a high mortality rate with hemopneumothorax and IVC injury associated with the highest risk for mortality. The mechanism most strongly associated with BAAI is MVA followed by pedestrian struck. Other risk factors for BAAI include rib fracture and trunk abrasion. Providers must maintain a high suspicion of injury for BAAI when these mechanisms of injury, physical examination or imaging findings are encountered.

Cattle-caused fatalities in a province of western Turkey: 1996-2010 autopsy results.

Cattle-caused injuries and deaths are much more than predicted. The aim of this research is to determine the prevalence of cattle-caused fatalities and the factors affecting it in a province of western Turkey. The court files on cattle-caused fatalities during a 15-year period between 1996 and 2010 were explored. The proportion of forensic-qualified deaths from the total of 3753 was 0.9% (35/3753). Most of the cases were between the ages of 18 and 65 (60%). Most deaths occurred in the spring and summer months compared with autumn and winter months (9 and 22 vs. 3 and 1, respectively). The mortality rate was much higher in men compared with women (94.3% and 5.7%, respectively). The majority of deaths were caused by injuries on the chest (71.4%). The reason for most deaths was due to hemopneumothorax and lung injury (71.4%). Predicting the behavior of cattle may not always be possible, as such, it is advisable that one wears protective equipment when dealing with cattle.

Spontaneous hemopneumothorax: is conservative treatment enough?

PURPOSE: Spontaneous hemopneumothorax is a rare disorder, occurring in 1% to 12% of patients with spontaneous pneumothorax. The present review was undertaken to emphasize the potential life-threatening condition of spontaneous hemopneumothorax and reassess the benefit of conservative treatment with chest tube drainage. MATERIAL AND METHODS: From 1997 to 2002, 291 cases of spontaneous pneumothorax were treated in our department. Of these, 9 (3.09%) developed hemopneumothorax (> 400 ml). The clinical features of these patients and the results of conservative and surgical management were retrospectively reviewed. RESULTS: Seven patients were treated conservatively and two required VATS and thoracotomy because of worsening clinical condition. The amount of aspirated blood ranged from 400 to 3700 ml (mean, 1533 ml). Six patients received a homologous blood transfusion. CONCLUSIONS: In conclusion, hemopneumothorax is a serious condition complicating spontaneous pneumothorax. Conservative treatment is adequate in most cases and should be performed if bleeding persists for less than 24 hours after chest tube placement.

Deaths during skin and scuba diving in California in 1970.

An investigation of 30 recorded deaths in sport diving in California in 1970 gave evidence of equipment failure in two, a failure of the victims' judgment or training in 13, and a failure of rescue attempts in four instances. In three histories no cause could be found. Factors associated with the deaths are reported. In the same period there were recorded in the state 171 drownings in home pools out of a total of 712 drownings in water sports.

Hemopneumothorax following blunt trauma of the thorax.

Hemopneumothorax is a frequent sequel of blunt trauma of the thorax and is easily treated if it occurs without associated injury. As an isolated injury, it is accompanied by a low mortality rate, 2 per cent in this series of 330 patients. The principal treatment for hemopneumothorax was tube thoracostomy with large bore chest tubes. Initial thoracotomy was required for 3.3 per cent of the patients, and late thoracotomy for complications was necessary only in 1.2 per cent of the patients. The over-all mortality rate of 20.3 per cent reflected the many associated injuries. Extrathoracic trauma played a significant role in 44 of the 67 deaths.