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Pericardial effusion. R2 鄭淳心. Name: 楊許 X 玉 Chart no.:3230708 Sex: female Age:78y/o Birthday: 13/02/17 Weight: 80Kg Admitted to ER due to falling down with head injury, no loss of conscious , no syncope. Chest tightness, cold sweating , drowsy conc.
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Pericardial effusion R2 鄭淳心
Name: 楊許X玉 Chart no.:3230708 Sex: female Age:78y/o Birthday: 13/02/17 Weight: 80Kg Admitted to ER due to falling down with head injury, no loss of conscious , no syncope. Chest tightness, cold sweating , drowsy conc. BP: 87/35mmHg, T 34.4,Rate 54, sugar 367 Lethargy, extremity :edema
Past history: • GB stone s/p op • S/p appendectomy • colon valvulous s/p • CAD with AMI history (?) • HTN(+), DM(-)
Brain CT: chronic SDH with old lacunar infraction • Chest X-ray: widen mediastenum with double line of aorta • Chest CT scan: ascending aorta D=5cm, pericardial effusion 1cm thick, suspect: Intramural hematoma on ascending aorta arch and descending aorta with marked trachea deviation
Cardiac echo: pericardial effusion with tamponade sign severe AR, Dilated aortic root , fair heart contractility BP 105/73 under Dopamine 40ml/hr (13ug/kg/min) Impression : 1.pericardial effusion with tamponade 2. Ascending aortic aneurysm with suspect intramural hematoma
Pericardial effusion Associated with • Chest trauma • Cardiac or thoracic surgery • Pericardial tumor • Pericarditis (acute viral, pyogenic uremic, or postradiation ) • Myocardial perforation by a central venous or pulmonary artery catheter • Aortic dissection
Pericardial effusion Clinical feature: • Tachycardia • Hypotension • Jugular venous distention • Muffled heart sound • ECG: electrical alternans • Pulsus paradoxus
Pericardial effusion • Equalization of right- and left-side heart pressure • CVP=RVEDP=PWCP Definitive diagnosis • Cardiac echocardiography • Tamponade physiology:cardiac catheterization
Pulsus paradoxus Seen in Cardiac tampomade Severe COPD Asthma Pulmonary embolism
Pulsus paradoxus Absent in cardiac temponade p’t with coexistent cardiac pathology ASD, LVH, LV failure, infraction, ischemia, or aortic valve incompetence
Pericardial effusion Blind drainage complication Peumothroax Coronary a. or internal mammary a. laceration Ventricular chamber perforation
Pericardial effusion • Anesthetic goals • In cases of tamponade , relieve the restriction to diastolic filling before the induciton • Avoid postive pressure ventilation until tamponade physiology has been relieved • Maintain filling pressure high enough • Avoid vasodilation • Avoid bradycardia • If compromised, support myocardial contractility
Pericardial effusion PRE-induction • Effusion status • Past history with impairment contractility, prepare inotrope agent infusion • Alpha-adreneric support may be needed • Heart rate must be maintained • A-line , 5-lead EKG • Large-bore iv (14# 0r 16#) • CVP, PA-catheter • Prepare for emergency incision before induction
Pericardial effusion Induction • Etomidate 0.3mg/kg • Fentanyl 5 to 10 ug/kg • Ketamine 1 to 2 mg/kg iv • Amnesia: use BZD or inhalation agent • Muscle relaxant: pancuronium Keep SVR, heart rate, contractility
Pericardial effusion • TEE • S/p drainage : pul. venous cogestion or pul. edema • endotracheal tube • Breathing :spontaneous or ventilated • Attention for ventricular filling pressure and intravascular volume