Priscilla W. Miller

Factors affecting mortality in pelvic fractures.

Review of 100 consecutive patients with pelvic fractures admitted to a trauma service during an 11-month period was undertaken in order to define the factors which affected the mortality. Mortality was most significantly affected by severity of injury, presence of a head injury, admitting blood pressure, admitting hemoglobin level, and requirements for blood and blood products. Evaluation of anatomic configuration of fractures demonstrated that posterior fractures required larger amounts of blood and blood products, had a significantly decreased admitting blood pressure, and had a significantly higher mortality, despite there being no significant difference in injury severity between patients having anterior or posterior fractures.

The significance of scapular fractures.

Scapular fractures in the multiply injured patient have received little attention. Fifty-six patients with 58 scapular fractures secondary to blunt trauma were reviewed. The patients averaged 3.9 major injuries excluding their scapular fractures. The injury pattern associated with blunt scapular fracture is unique. Patients with scapular fracture have a high incidence of injury to the ipsilateral lung and chest wall and to the ipsilateral shoulder girdle and its contained structures: rib fractures, 53.6%; pulmonary contusions, 53.6%; clavicular fracture, 26.8%; brachial plexus injury, 12.5%; subclavian, brachial, or axillary artery injury, 10.7%. Eight patients died (14.3%). Although no patient died from the scapular fracture, half of the deaths in this series were the result of pulmonary sepsis arising in an associated ipsilateral pulmonary contusion. Scapular fractures provide the trauma surgeon with a reliable clinical clue that the patient is at inordinate risk to have associated injuries of major consequence to the ipsilateral lung and chest wall, the ipsilateral shoulder girdle, and the ipsilateral subclavian, axillary, or brachial artery.

Effects of ethanol ingestion on the severity and outcome of trauma

Review of 1,198 patients with regard to outcome and the presence or absence of detectable ethanol in the blood as determined in the emergency room demonstrated no difference in the severity of injury in those who had been drinking and those who had not. Mortality was significantly lower in those who had been drinking. There were no other significant differences in the two groups. The mechanism by which this occurs is not well understood but may be related to an augmentation of the catecholamine response normally seen after injury.

Emergency department thoracotomy

The charts of 33 consecutive patients undergoing emergency department thoracotomies between July 1, 1979 and June 30, 1980 were reviewed. Thoracotomies were performed in victims of both blunt and penetrating trauma who had suffered cardiopulmonary arrest and were refractory to the usual methods of resuscitation. Overall survival was 12.1% (4/33). There were no survivors from blunt trauma or penetrating wounds below the diaphragm. In patients with penetrating wounds above the diaphragm, emergency thoracotomy may be considerable benefit as demonstrated in our study by a 66.6% salvage rate.

Urgent thoracotomy for pulmonary or tracheobronchial injury.

Three hundred eighty-eight of 7,283 (5.3%) admitted trauma patients underwent urgent thoracotomy. In 61 patients (15.7%), pulmonary or tracheobronchial injury prompted thoracotomy (11, blunt; 50, penetrating). Pulmonary hemorrhage necessitated thoracotomy in 54 patients (88.5%); tracheobronchial injury in five patients (8.2%). The mortality was 27.9%. Nine patients (14.8%) underwent pneumonectomy: eight died of intractable hemorrhagic shock during thoracotomy despite rapid control of pulmonary hemorrhage: one died of sepsis. Eleven patients (18.0%) underwent lobectomy: six (54.5%) died of concomitant injuries. Thirty-six patients (59.0%) underwent pneumonorrhaphy: one died of concomitant injuries. Five (8.2%) patients underwent tracheobronchial repair: one died of concomitant injuries. Pneumonectomy was uniformly fatal and should be a procedure of last resort in the treatment of pulmonary injury, as lobectomy and pneumonorraphy are better tolerated by these critically ill patients.

Urban helicopter response to the scene of injury

Metropolitan Houston with a population of four million has the nations poorest freeway system. Its two Level I trauma centers are adjacent within a centrally located freeway loop, therefore the city is ideally suited for a trauma scene helicopter transport service. During 1981 there were 577 flights to the scene of injury (blunt, 466; penetrating, 111). Flights were requested by 60 agencies (EMS, law enforcement, etc.). All flights were manned by a surgical resident and flight nurse. The flight distances ranged from 2 to 57 miles (average, 14.4). Three hundred six flights (53%) were within the city, including 59 (10.2%) within the freeway loop. In approximately one half of the flights, the initial responding EMS unit was a paramedic unit. The average time at the scene was 28 minutes. The overall mortality for trauma scene flights was 35.7% (206/577). Eighty-nine patients (15.1%) died at the scene and were not transported (initial median scene Trauma Score, 2). The mortality among transported patients was 24.0% (117/488). Twenty-nine patients died during attempted emergency-center resuscitation (initial median scene Trauma Score, 5). Eight-eight patients died after hospital admission (initial median scene Trauma Score, 10). Only 27 patients (5.5%) did not require hospitalization. Scene treatment (intubation, hyperventilation and, when appropriate, mannitol administration) was routinely initiated for patients with severe head injuries. Two hundred seventy-nine patients required cardiopulmonary resuscitation, tracheal intubation, chest-tube placement, or other invasive procedures. Based upon these resuscitative efforts and invasive procedures, a physician in attendance was deemed medically desirable for one half of the flights.(ABSTRACT TRUNCATED AT 250 WORDS)

Peritoneal lavage and angiography in the management of patients with pelvic fractures

One hundred consecutive patients with pelvic fractures who had undergone peritoneal lavage and abdominal and pelvic angiography were retrospectively analyzed. Sixty-four patients with negative lavages were treated successfully without laparotomy despite a 20 percent incidence of subcapsular or intraparenchymal hematomas of the liver or spleen. Thirty percent of the patients with positive peritoneal lavages were successfully managed without laparotomy when abdominal angiography failed to identify a source of active bleeding. Abdominal angiography was 92 percent accurate in predicting the presence or absence of hemorrhage in 25 patients who underwent laparotomy. There were no false-positive angiograms. The overall false-negative rate was 2.12 percent. These occurred in two patients with torn mesenteric vessels. Pelvic angiography identified arterial pelvic bleeding in 18 percent of the patients. Eighty-four percent of patients with major pelvic bleeding had successful embolization with prompt cessation of arterial bleeding. We conclude that abdominal and pelvic angiography can be a useful adjunct to peritoneal lavage in detecting intraperitoneal hemorrhage and can be of therapeutic value for arterial pelvic bleeding.

The management of splenic injury.

Increased concern over the potential immunologic consequences of splenectomy has prompted surgeons to attempt salvage of traumatized spleens. We report a retrospective study of 172 consecutive patients with documented splenic injury treated over a 2-year period: 107 patients underwent splenectomy; 65 were managed without total splenectomy; 32 were not explored. The overall mortality rate was 27%; the overall complications were 30%, including a 13% incidence of post-splenectomy subphrenic abscess. The incidence of infectious complications after splenectomy was 36%, while the incidence in nonsplenectomized patients was 9%. The Injury Severity Scores (ISS) in the two groups were significantly different (p less than or equal to 0.05). When the group whose spleens were salvaged was compared to an equivalent group matched for ISS, age, and sex, there was no significant difference in sepsis rates (23% vs. 10.7%; 0.10 greater than or equal to p greater than or equal to 0.05). Survival in those with postinjury infectious complications was significantly improved in patients with a remaining spleen (p less than or equal to 0.01). Abdominal computerized tomography was used successfully as a method of following injured and repaired spleens in order to predict return to full activity.

Angiography and peritoneal lavage in blunt abdominal trauma.

Records of 123 consecutive patients who underwent abdominal angiography for blunt trauma were reviewed. Twenty-four patients underwent abdominal angiography on the basis of positive physical findings. Seven (29%) required intervention as determined by angiography and the diagnosis was confirmed. Ninety-nine patients had abdominal angiography in association with angiographic evaluation of the chest, pelvis, or extremities. In 14 (14%) the angiogram indicated the need for intervention. In 13 this diagnosis was confirmed at laparotomy. The fourteenth patient was embolized angiographically and did well. Fifty-four patients had peritoneal lavage in addition to their angiograms. Sixteen were positive and 38 were negative. In four patients the lavage was negative and the angiographic findings indicated need for intervention. Three of these four were confirmed at laparotomy and the fourth patient was embolized angiographically. Indications for abdominal angiography in blunt trauma are: 1) incidental to needed thoracic aortography; 2) incidental to angiography when done for pelvic fractures; 3) suspected intra-abdominal injuries when clinical and lavage data are not definitive.

THE ECONOMICS OF FATAL INJURY: DOLLARS AND SENSE

This study reviewed the direct costs (charges for goods and services) for 77 consecutive patients who presented to this trauma service with a Trauma Score (TS) of four or less. Seventy-four patients died (96.1%). The survival rates based upon the Trauma Scores were: TS 1, 0(0/34); TS 2, 0(0/9); TS 3, 7.7% (1/13); TS 4, 9.5% (2/21). Only four nonsurvivors lived more than 24 hours. The remaining 70 patients died within 24 hours without achieving even transient cardiovascular stability. Three of the 77 patients survived (3.9%) but only one achieved a productive recovery. The total direct cost for the 77 patients was +544,477.66. Physician fees, which accounted for 26.7% of the direct costs, averaged +1,887.57 per patient (range, 0-+11,291.00). The average direct cost for the three survivors was +50,138.94. The average direct cost for nonsurvivors was +5,325.18 (+3,383.29 for patients with a TS 1 or 2, +8,018.76 for patients with a TS 3 or 4). The hospital direct costs for nonsurvivors ranged from +40.00 for a patient declared dead on arrival to +57,817.91 for a patient who died 41 days after admission. It is futile to continue resuscitational efforts if a valid Trauma Score of 1 or 2 is confirmed shortly after the initiation of appropriate resuscitative measures. Continued therapy is futile for the remainder of patients admitted with Trauma Scores of 4 or less if they do not achieve cardiovascular stability in response to appropriate resuscitative measures within 1 hour of admission.(ABSTRACT TRUNCATED AT 250 WORDS)