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Chest injuries Recommend Do not remove any object sticking out of wound (eg. knife) Suspect tension pneumothorax in all patients where there is unexplained respiratory distress or shock [1] Tension pneumothorax is a life threatening emergency and probably the commonest cause of preventable death in the severely injured Background Damage to the chest wall from: broken ribs, flail chest (where ribs have broken in two places leaving a broken “island” of chest wall) if penetrating, an open chest wound Damage to blood vessels lining the chest wall can cause blood to collect outside the lungs, inside the chest cavity (haemothorax) Damage to the lungs can cause: breathing difficulties bruising of the lung tissue (lung contusion) air to escape from the lungs into the chest cavity (pneumothorax) if this air is under pressure, it can cause deviation of the mediastinum – this is called “tension pneumothorax” “surgical emphysema” occurs if air spreads into the tissues Related topics: DRABC Resuscitation / the collapsed patient, page 35 O2 Delivery systems, page 39 Severe injuries, page 95 Needle thoracentesis, page 104 Shock, page 51 1. May present with: Isolated chest injury secondary to blunt or penetrating trauma Pain Increased heart rate, respiratory distress, cyanosis Hypotension / shock 2. Immediate management: DRABC Resuscitation / the collapsed patient Give high flow oxygen see Oxygen delivery systems Check BP and heart rate, respiratory rate, O2 saturation Insert large bore IV cannula (14 g or 16 g, if possible). Insert the largest you can in the circumstances Consult MO 3. Clinical assessment: If possible obtain a history of the circumstances of the injury from patient / witnesses Perform and monitor BP, heart rate, respiratory rate, O2 saturation, conscious state, capillary refill Record pain score (1-10) Inspect - for wounds, bruising or abrasions over chest Inspect chest movement on respiration eg. uneven or paradoxical movement (paradoxical movement is where an area of chest wall moves in while the rest of the chest moves out and vice versa. This indicates a “flail chest” and multiple fractured ribs) Auscultate the chest – is the air entry equal? Position of trachea; is it midline or to one side? The presence of local tenderness is adequate to diagnose fractured ribs. Do not spring rib cage “Surgical emphysema” – under the skin of the chest wall, clavicle area or neck (it feels like bubbles or “crackling”). If present, suspect serious injury Perform chest X-ray if available Suspect the following injuries: Patient in pain and increasing respiratory distress Non penetrating causes (no open wounds) increasing heart rate, falling BP, falling GCS, unequal chest movement, trachea deviated away from the affected side, decreased air entry and hyper-resonance on percussion noted on affected side, distended neck veins suspect Tension pneumothorax Consider performing Needle thoracentesis Patient in pain and some breathlessness but not increasing respiratory distress may be unequal chest movement, trachea may be deviated towards the affected side, may be decreased air entry and increased percussion noted on affected side suspect Simple pneumothorax increased heart rate, respiratory distress and back crackles in chest suspect Lung contusion Patient in pain and respiratory distress with hypotension/shock may be unequal chest movement, trachea may be deviated away from the affected side, may be decreased air entry and dull percussion on affected side suspect Haemothorax Patient in pain and respiratory distress with paradoxical movement of an area of the chest wall this means part of the chest wall moves in when the patient breathes in, and out when patient breathes out suspect Flail chest Patient in pain worse on breathing in and coughing, not breathless localised chest wall, swelling and tenderness suspect Broken rib Penetrating (open) causes (including gunshot and stab wounds) Possible haemothorax Patient in pain & respiratory distress an obvious wound to the chest with or Do not remove any object sticking out of without an object sticking out wound (eg. knife). Patient in pain & respiratory distress 4. air sucking into chest Open chest wound Other possible complications include cardiac tamponade, aortic disruption, tracheo-bronchial disruption, oesophageal disruption. Management: Tension Pneumothorax This is a life threatening emergency and probably the commonest cause of preventable death in the severely injured. Tension pneumothorax requires urgent treatment. Consult MO unless circumstances do not allow in which case notify MO as soon as circumstances allow perform Needle thoracentesis insert a 14 g IV cannula through upper chest wall (2nd intercostal space, midclavicular line) into thoracic cavity just above the upper edge of the rib below (see diagram below) if tension pneumothorax is present, air will escape with a rush from the pleural space under pressure with an easing of respiratory distress if patient has only partly improved or gets worse check the cannula has not kinked or the tension pneumothorax may have recurred, or there may be a tension pneumothorax on the other side – Consult MO; you may need to try again on the other side the MO will insert a formal intercostal catheter prior to evacuation/hospitalisation and attach to Heimlich valve or Portex ambulatory chest drainage system Analgesia: see following page Simple Pneumothorax consult MO monitor and await transfer MO will insert a formal intercostal catheter prior to evacuation / hospitalisation Analgesia: see following page Haemothorax consult MO treat hypovolaemia, if respiratory distress ensues then treat as Tension Pneumothorax MO will advise quantities and rates of IV fluids to be given. It is usual to start with Normal Saline or Hartmann’s Solution and follow with blood the MO will insert a formal intercostal catheter prior to evacuation / hospitalisation see Shock Analgesia: see following page Flail Chest consult MO if a small segment – chest wall may be stabilised using a towel and nursing the patient on the affected side continue to provide airway and ventilation support as per MO instructions if large, will require intubation and ventilation by MO prior to evacuation/hospitalisation in a facility with intensive care capability Analgesia: see following page Broken Rib consult MO who will likely advise oral analgesia, and review next day if no other injury Penetrating (open injuries) (sometimes called Open Pneumothorax) including gunshot and stab wounds do not remove any object sticking out of wound eg. knife. Pack around with gauze soaked in Normal Saline and secure in the case of sucking chest wounds, seal the wound on three sides with Op-site or soft plastic wrap (Glad wrap®). The idea is to create a valve effect, so that air can escape from, but not enter the chest cavity (see diagram) Consult MO who will advise antibiotics / analgesia and arrange evacuation the MO will insert a formal intercostal catheter prior to evacuation/hospitalisation in a facility with appropriate surgical capability Give patient nil by mouth Keep patient warm Analgesia : adults with severe pain require adequate analgesia. Intravenous is the preferred route of administration for narcotic analgesics for severely injured patients if not allergic, give Morphine (preferable) or if allergic to Morphine give Fentanyl. if nauseated or vomiting give metoclopramide (adult) children should not receive Metoclopramide (Maxolon) or Prochlorperazine (Stemetil) because of the high risk of dystonic reactions. If an antiemetic is required for a child the MO may advise Ondansetron wafer 4mg Children with pain require adequate analgesia. Early and appropriate doses of analgesia should be given including Morphine or intranasal Fentanyl with adequate reassessment and monitoring. Consult MO Schedule 8 Morphine Sulphate DTP IHW / RIN / NP Authorised Indigenous Health Workers must consult MO Rural and Isolated Practice Endorsed Registered Nurses may proceed with the recommended dose Nurse Practitioners may proceed Route of Restrictions/ Form Strength Recommended Dosage Administration conditions Ampoule 10 mg/mL IM Adults only: 0.1-0.2 mg/kg up to a Stat maximum of 10 mg Consult the Medical OR Officer if the patient requires more than the Ampoule 10 mg/ mL IV Adults only: 2.5 mg increments slowly, recommended dose (RIN only) repeated every 10 min if required to a maximum of 10 mg Provide Consumer Medicine Information if available: Advise can cause nausea and vomiting, drowsiness Management of Associated Emergency: Respiratory depression is rare. If it should occur give Naloxone as per poisoning: opiates HMP. NB: as Naloxone counteracts the narcotic, it may cause the return of severe pain If allergic to Morphine or significant renal disease give Fentanyl: N.B. Fentanyl has a rapid onset of action Schedule 8 Fentanyl DTP IHW / RIN / NP Authorised Indigenous Health Workers must Consult MO Rural and Isolated Practice Endorsed Registered Nurses may proceed with the recommended dose Nurse Practitioners may proceed Route of Form Strength Recommended Dosage Restrictions / conditions Administration Ampoule 100 IM Adults only: 1.5 micrograms / Stat microgram/ 2 kg up to a maximum of 100 mcg Consult the Medical Officer mL OR if the patient requires more Ampoule 100 IV Adults only: 25 microgram increments than the recommended dose microgram/ 2 (RIN only) slowly, repeated every 10 min if mL required to a max. of 100 microgram Provide Consumer Medicine Information if available: Advise can cause nausea and vomiting, drowsiness Management of Associated Emergency: Respiratory depression is rare. If it should occur give Naloxone as per Poisoning: Opiates HMP NB: as Naloxone counteracts the narcotic, it may cause the return of severe pain DTP Schedule 4 Metoclopramide IHW / RIP / NP Authorised Indigenous Health Workers must consult MO Rural and Isolated Practice Endorsed Registered Nurses may proceed Nurse Practitioners may proceed Route of Form Strength Recommended Dosage Duration Administration Ampoule 10 mg in IM Adults only: 10 mg Stat - further doses should only be 2 mL Or IV (RN only) given on MO’s orders Provide Consumer Medicine Information if available: Not for use in patients with Parkinson’s disease or children and caution in use in women less than 20 years of age Management of Associated Emergency: Dystonic reactions eg. oculogyric crisis are extremely rare (unless repeated doses or in children). If oculogyric crisis develops give Benztropine 2 mg IMI or IVI as per Mental health emergencies. 5. Follow up: MO will advise ongoing management Consult MO if the patient has any symptoms, an increased heart rate, increased temperature or any chest findings 6. Referral / Consultation: Consult MO with any findings above or if at high risk of serious injury because of circumstances: high speed vehicle ejection from vehicle death or serious injury of another occupant entrapment fall greater than 3 metres motorcycle or pedestrian struck by vehicle multi-casualty incident Prepare patient for evacuation via air or road to facility with capability to address chest injuries