i n j u r y
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I n j u r y. Injury. chest abdomen limbs. Chest wall. fracture of ribs is the most common thoracic injury pain on inspiration is the principal symptom a chest x-ray should be obtained therapy - analgetics, intercostal nerve blocks, muscle relaxants - PowerPoint PPT PresentationTRANSCRIPT
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I n j u r y
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Injury
chest abdomen limbs
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Chest wall
fracture of ribs is the most common thoracic injury
pain on inspiration is the principal symptom a chest x-ray should be obtained therapy - analgetics, intercostal nerve blocks,
muscle relaxants rib belts and adhesive taping should be
avoided - retained secretions, atelectasis
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Flail chest
unilateral fractures of four or more ribs or bilateral
instability of chest
(paradoxical respiratory motion results in hypoventilation)
respiratory difficulty is agravated by pulmonary contusion
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Pneumothorax
pneumotorax results from the lacerations of the chest wall or lung
open pneumothorax- a defect in a chest wall - it is a sucking chest wound - a prompt closure of the defect with a sterile dressing is necessary
chest tube insertion intubation, artficial ventilation
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PNO
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Tension pneumothorax
develops when a flap valve leak allows air to enter the pleural space but prevents its escape
intrapleural pressure rises, causing total lung collapse and a shift of the mediastinum to the opposite side
this pressure must be relieved immediately to avoid interference with ventilation on the opposite side and impairment of cardiac function
tension pneumothorax is a true surgical emergency, requiring chest tube insertion
subcutaneuous emphysema, absent breath sounds,mediastinal shift , acte respiratorry distress warrant chest tube insertion - without chest x-ray
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Hemothorax
hemorrhage into pleural space occurs in some quantity in almost every patient with
a chest injury blood loss can vary from slight to extensive the lung itself is a low pressure system it is necessary to place the chest tube and check
the bood loss in some cases - thoracotomy / acute hemothorax of
1500ml various techniques can be used - simple
oversewing or resection of injured segments
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Hemothorax
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Trachea and Bronchus Injuries
mediastinal and deep cervical emphysema subcutaneous crepitance or PNO with a massive air leak respiratory distress is frequent endoscopic evaluation prior intubation emergency treatment - inserting the endotracheal
tube beyond the injury small lesions may be managed without surgical
treatment for an early stricture either resection or an
bronchoplastic procedures /stents/
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Heart and Aorta
Blunt cardiac injury spectrum of cardiac changes - from wall bruise to
ventricular, septal or valvular rupture diagnosis is difficult arrhythmia can occur many cardiac contusions are unrecognised
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Tamponade
Cardiac tamponade is most frequently caused by penetrating thoracic injury
occasionally in blunt thoracic trauma accumulation of as little as 150 ml of blood in
pericardial sack may impair diastolic filling distended neck veins, muffled heart sounds,
hypotension, cyanosis therapy - pericardiocentesis - echocardiography is
advisable 15% of pericardiocenteses give false negative
results because of a clotted hemopericardium
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Aorta
rupture of a thoracic aorta is the most lethal injury most patients die immediately from exsaquination who survive the initial period develop a false
aneurysm that can slowly enlarges over a period of months to years
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Other injuries
Ruptures of diafragm - may result of herniation of viscera
herniation of viscera may not occur immediately
Esophagus - blunt injury of oesophagus is rare
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Abdomen
motor vehicle accidents pedestrian accidents penetrating trauma - knife wounds are more
common than gunshot wounds diagnostic techniques: peritoneal lavage - in the past ultrasonography CT diagnostic laparotomy - a limited role
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Ultrasonography
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CT
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Spleen
is the most commonly injured intraabdominal organ
diagnosis is confirmed by CT scan therapy - splenectomy overwhelming postsplenectomy sepsis nonoperative management - delayed rupture maybe
due to an erlarging subcapsular hematoma
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Liver and Biliary Tree
The liver is the most commonly injured organ. CT examination therapy - surgical (suture, resection) Deep liver lacerations should not simply be sutured
closed. This predisposes to liver abscesses and hemobilia
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Stomach
Most gastric injuries are due to penetrating trauma
Blunt trauma is rare If vomitus or gastric aspirate is bloody, an
injury to the stomach should be suspected. Therapy: laparotomy: can be treated simply with
debridement and closure in layers.
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Other injuries of abdomen
Duodenum Pancreas: pancreatic trauma is relatively uncommmen
Intestines Colon and rectum Major abdominal vessels Urinary tract: hematuria is present
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Pelvic Fractures
Crush injuries massive blood loss therapy - skeletal fixation
Perineal wounds
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Limbs
Hemorrhage can be also life-threatening Early fixation of long bone fractures decreases the
exidence of ARDS and fat embolization Early patient mobilization lessens the likehood of
pneumonia, venous thrombosis Soft tissue injuries: complete debridement of all
devitalized tissue is a preventation of infection. Primary amputation Tetanus: prophylaxis is recommended
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Limbs