Moheb A. Rashid

Nomenclature, Classification, and Significance of Traumatic Extrapleural Hematoma

BACKGROUND Extrapleural hematoma has been found mostly in single case reports as diagnoses with different names. Although huge extrapleural hematoma can cause ventilatory and circulatory disturbances and even death, it has received almost no attention in the literature. Certain basic and modern facts need to be clarified regarding the definition, classification, and significance of extrapleural hematoma in the practice of chest trauma. METHODS A 10-year retrospective study was undertaken to analyze the incidence, diagnosis, management, morbidity, and mortality of patients with chest trauma and a documented extrapleural hematoma. RESULTS The incidence of traumatic extrapleural hematoma was 34 of 477, 7.1%. The incidence of thoracic lesions was 86 of 34 = 2.5 lesions per patient, whereas the incidence of extrathoracic lesions was 30 of 34 = 0.9 lesions per patient. Associated rib fractures were found in 30 of 34, 88.2%. More than half of the patients had an associated hemothorax. A thoracotomy was used successfully to remove a huge hematoma in one patient. CONCLUSION Extrapleural hematoma has been found to be more common than previously reported. Nomenclature and classification are suggested. One of the common injuries to the chest, particularly rib fracture, hemothorax, lung contusion, or pneumothorax might provide the surgeon with a reliable clinical clue that the patient is at inordinate risk to have associated extrapleural hematoma. A formal or mini-thoracotomy is the recommended procedure in cases of huge hematomas.

Cardiac injuries: a ten‐year experience

OBJECTIVE To present our experience of cardiac injuries treated at one Swedish emergency department in the 10 years 1988-97. DESIGN Retrospective study. SETTING Teaching hospital. SUBJECTS 11 patients (9 men and 2 women, mean age 33 years, range 19-54); in 7 they were penetrating injuries and in 4 blunt. MAIN OUTCOME MEASURES Morbidity and mortality. RESULTS The mechanisms of injury were stab wound (n = 7), and car crash, fall, boat crash, and abuse (n = 1 each); drug or alcohol misuse played a part in all those with penetrating injuries. The penetrating wounds involved the left ventricle (n = 3), the right ventricle (n = 2), and the pericardium (n = 2). All 5 patients with ventricular wounds presented with cardiac tamponade, in 1 of whom it was fatal (he bled to death during emergency thoracotomy). The main complications were anoxic brain damage and postpericardiotomy syndrome (1 each). There was no case of myocardial concussion. CONCLUSION Our data reflect the Swedish experience of heart trauma: there are few cases, alcohol and drug misuse is the principal risk factor, and there were no gunshot wounds.

Cardiovascular Injuries associated with Sternal Fractures

OBJECTIVE To find out if the presence of a sternal fracture indicates cardiac and aortic injuries and to clarify the difference between a retrosternal haematoma and widened mediastinum. DESIGN Retrospective study. SETTING Teaching hospital, Sweden. SUBJECTS 418 patients with blunt chest trauma of whom 29 had a fractured sternum (11 with retrosternal haematoma and 18 without) and 389 did not (7 with widened mediastinum and 382 without). MAIN OUTCOME MEASURES Definitions, risk factors, morbidity, and mortality. RESULTS Retrosternal haematomas were found adjacent to many fractures and ranged in size from a few mm to 2 cm. They were more common in fractures of the body of sternum. There was no significant difference in the number of associated lesions between patients with sternal fractures with or without a retrosternal haematoma. Conversely, patients with a widened mediastinum had a higher injury severity score, longer hospital stay (p < 0.0001), and more associated lesions (p < 0.05) than those with retrosternal haematomas. Six patients still had pain 1 month after injury of whom two had injury-related long-term disability because of pain. No serious cardiac or aortic injuries were detected in this series. The early mortality in our study was 2/29 in patients with sternal fractures and 1/7 in patients with widened mediastinum. CONCLUSIONS Sternal fractures are more common than previously reported. An aggressive approach including early operative reduction is recommended even for a stable fracture to reduce the overhelming pain. Sternal fracture with or without retrosternal heamatoma is not a reliable indicator of cardiac and aortic injuries, while mediastinal widening is still a fairly reliable clue that should indicate further investigation.

Outcome of lung trauma.

OBJECTIVE To find out whether we could manage critical pulmonary haemorrhages in penetrating injuries, and to report our experience with blunt trauma of the lung. DESIGN Retrospective study. SETTING Teaching hospital, Sweden. SUBJECTS 81 patients who presented with pulmonary injuries during the period January 1988-December 1997; 6 were penetrating and 75 blunt. RESULTS There was only one patient with an isolated lung contusion. The remaining was divided into 2 groups: those with pulmonary contusion and thoracic lesions (n = 32), and those with pulmonary contusion and extrathoracic lesions (n = 42). Four patients in the penetrating group were shocked and required urgent operations; emergency room thoracotomy (n = 1), urgent thoracotomy (n = 2), and urgent thoracoabdominal exploration (n = 1) were done successfully. We correlated grade of lung injury [American Association for the Surgery of Trauma-Abbreviated Injury Scale (AIS)] with mortality. All patients with penetrating injuries survived without serious consequences. There were a mean (SD), of 6 (2) injuries/patient in those with extrathoracic injuries compared with 3 (1) injuries/patient in the group with thoracic lesions (p < 0.001). The corresponding hospital mortality was 6/42 (19%) mainly as a result of the central nervous system lesions (4/6) compared with 0/32. The mean (SD) Injury Severity Score (ISS) was 9.3 (4.8) in patients with thoracic lesions compared with 24.1 (14.7) in patients with extrathoracic lesions (p < 0.0001), and 14.9 (9.5) in all survivors compared with 49.9 (13.6) among those who died (p < 0.0001). CONCLUSIONS An excellent outcome can be achieved managing penetrating injuries of the lung by an aggressive approach and urgent surgical intervention even when emergency room thoracotomy is essential. Pulmonary contusion is considered to be a relatively benign lesion that does not add to the morbidity or mortality in patients with blunt chest trauma. These data may help to decrease the obsession with pulmonary contusion in patients with chest trauma, with or without extrathoracic lesions, and avoid many unnecessary computed tomograms of the chest.

Trauma to the heart and thoracic aorta: the Copenhagen experience

Injuries of the heart and thoracic aorta (traumatic aortic rupture, TAR) remain amongst the most challenging of all injuries seen in the field of trauma and cardiothoracic surgery. The aim herein was to present our experience of such lethal injuries treated at Denmarks busiest hospital. We found 11 patients with cardiac injuries and nine patients with TAR. Five patients with cardiac injuries presented in shock of which two died. Eight patients with TAR were operated on using bypass without paraplegia. The Danish experience of heart trauma is limited but with satisfactory results. We recommend left heart bypass to prevent paraplegia in TAR.

Blunt Traumatic Pericardial Rupture: a Diagnostic Challenge

AbstractTraumatic pericardial rupture is a rare lesion associated with a high mortality rate, and its diagnosis poses challenges for the surgeon. Two patients are presented, in whom the diagnosis was not possible preoperatively, and discovered only during surgery for associated lesions. To the best of our knowledge, this is the first description of total bilateral linear pericardial ruptures associated with traumatic aortic rupture. The mechanism, diagnostic challenges, and management of this rare entity are discussed.

Cardiothoracic Contrecoup and Contralateral Injuries: Nomenclature, Mechanism, and Significance

Objective: Contrecoup injuries are well-known lesions in the neurosurgical practice, while their existence in other medical disciplines is lacking. Another term of confusion is the contralateral lesion that is ill defined when compared to the contrecoup injury. A nomenclature, mechanism, and clinical significance of such lesions in cardiothoracic trauma patients are warranted. Patients and Methods: Only one patient with thoracic contracoup injuries was found in a retrospective review of 477 patients with significant cardiothoracic trauma managed during a 10-year period, between January 1988 and December 1997, at Sahlgrenska University Hospital/Östra, Gothenburg, Sweden. The other four cases with contrecoup injuries were encountered in a prospective manner in different places both in Sweden and Norway. All the four prospective cases were witnessed and well documented during trauma occurrence and management. Results: All patients developed significant contralateral chest wall symptoms and signs requiring treatment. One patient developed huge contrecoup pneumothorax. Two patients developed contrecoup hemothoraces. One patient developed contrecoup cardiac injury. One patient developed contralateral chest wall rib fractures. Two patients developed contralateral sternal fractures; one of them was unstable and required surgical fixation. Conclusions: Nomenclatures to what are have called contrecoup and contralateral lesions in cardiothoracic practice are suggested. Discrepancy between the trauma side of the chest and the resulting lesions exactly on the contralateral part may make the diagnosis difficult to understand and could give a suspicion concerning the trauma site, and whether the patient was conscious or simply not telling the truth as in case of trauma with medicolegal aspects.