CARDIOPULMONARY RESUSCITATION CPR Dr.Arkan Jaafar Anesthesiologist Medical college of Mosul

Cardiopulmonary resuscitation (CPR) is a key part of emergency medical care designed to resuscitate individuals in cardiac arrest ‘Revives heart (cardio) and lung (pulmonary) functioning’ The purpose of CPR is to temporarily provide effective oxygenation of vital organs, especially the brain and heart, through artificial circulation of oxygenated blood until the restoration of normal cardiac and respiratory activity occurs This is to stop the degenerative processes of ischemia and anoxia caused by inadequate circulation and inadequate oxygenation. Time to initiation of CPR is critical to improve likelihood of recovery; ideally, it should be started within 4 min of arrest, and advanced cardiac life support should be initiated within 8 min of arrest

Basic life support BLS Basic life support is the maintenance of an airway & the support of breathing & the circulation .

Assessment When approaching a patient who appears to have suffered a cardiac arrest the rescuer should check that there are no hazards to himself before proceeding to treat the patient Rapidly assess any danger to the patient & yourself from hazards such as electricity ; fire or traffic. Establish whether the patient is responsive by gently shaking his or her shoulder & asking loudly “are you all right” ? If no response is given; shout for help.

Airway Loosen tight clothing around the patient neck. Extend the neck ;thus lifting the tongue off the posterior wall of the pharynx . Head tilt/chin lift. If suspect cervical spine injury → jaw thrust Remove any obvious obstruction from the mouth. “All rescuers should immediately begin CPR for adult victims who are unresponsive with no breathing or no normal breathing (only gasping).” Quick “look” for no breathing or no normal breathing

Recovery position If the patient is unconscious but is breathing ; place him or her in the recovery position. In this position the tongue will fall away from the pharyngeal wall & any vomit or secretion will flow out of the corner of the mouth rather than obstruct the airway or later on cause aspiration

If breathing is absent ; pinch the nose closed with fingers of your hand .Take a breath ;seal your lips firmly around those of the patient & breath out until you see the patient’s chest rising. The chest should rise as you blow in & fall when you take your mouth away. Rescue breaths deliver over 1 second The best pulse to feel in an emergency is the carotid pulse; but if the neck is injured the femoral pulse may be felt at the groin.

Circulation If there are no signs of circulation (cardiac arrest) ,ensure that the patient is on his or her back & lying on a firm , flat surface , then start chest compression. For chest compressions, position hands at center of chest compression:ventilation ratio is 30 : 2 compression depth for adults is 5-6 cm Rate is 100-120 /min

In infants, compress the lower third of the sternum with two fingers of one hand; the upper finger should be one finger’s breadth below an imaginary line joining the nipples When more than one healthcare provider is present, the two-thumbed (chest encirclement) method of chest compression can be used for infants In children, the heel of one hand is positioned over a compression point two fingers’ breadth above the xiphoid process. In both infants and children the sternum is compressed to at least one third of the AP diameter of the chest

Advanced Cardiac Life Support ACLS BLS alone will rarely result in successful resuscitation. The purpose of BLS is to maintain organ blood flow until techniques can be applied to restore spontaneous circulation Maintain CPR/BLS. Defibrillator/monitor attached →Verify rhythm Appropriate intravenous access Ensure oxygenation (O2 →100%) and intubation if appropriate personnel present

Adrenaline (epinephrine) Give adrenaline 1 mg (adults) IV , IO repeat the adrenaline every 3-5 min Pediatric Dose 0.01 mg/kg IV or IO Effects :Increases perfusion to myocardium and to brain by increasing peripheral vascular resistance Amiodarone ( Anti-arrhythmic drug) If VF/VT persists after three shocks, give amiodarone 300 mg by bolus injection. A further dose of 150 mg may be given for recurrent or refractory VF/VT, followed by an infusion of 900 mg over 24 h.

Assisting the circulation Intravenous access Peripheral versus central venous drug delivery Peripheral venous cannulation is quicker, easier to perform, and safer. Drugs injected peripherally must be followed by a flush of at least 20 ml of fluid. Central venous line insertion must cause minimal interruption of chest compression. Intraosseous route IO If intravenous access is difficult or impossible, consider the intraosseous route for both children and adults. The intraosseous route also enables withdrawal of marrow for venous blood gas analysis and measurement of electrolytes and haemoglobin concentration.

Signs of life If signs of life (such as regular respiratory effort or movement) reappear during CPR, or readings from the patient’s monitors (e.g. exhaled carbon dioxide or arterial blood pressure) are compatible with a return of spontaneous circulation, stop CPR and check the monitors briefly. If an organised cardiac rhythm is present, check for a pulse. If a pulse is palpable, continue post-resuscitation care, treatment of peri-arrest arrhythmias, or both. If no pulse is present, continue CPR.

Post-resuscitation care Return of spontaneous circulation is just the first step towards the goal of complete recovery from cardiac arrest. Interventions in the post-resuscitation period influence the final outcome significantly. The post-resuscitation phase starts when return of spontaneous circulation is achieved. Once stabilized, the patient should be transferred to the most appropriate high-care area (e.g. intensive care unit or cardiac care unit) for continued monitoring and treatment