580 likes | 1.23k Views
Anesthesia for Adult Patient with Congenital Heart Disease. Mohamed Saleh, MD Department of Anesthesia and Intensive Care, Ain-Shams University. Case Scenario.
E N D
Anesthesia for Adult Patient with Congenital Heart Disease Mohamed Saleh, MD Department of Anesthesia and Intensive Care, Ain-Shams University
Case Scenario • A 17 years-old patient, was presented for emergency appendectomy. He had a history of repaired TOF at the age of 2 years. 12 years later, he started to complain of palpitations, exertional dyspnea, and was diagnosed as pulmonary regurgitation and right ventricular dysfunction. • How to manage this patient in the peri-operative period?
Journal of Cardiothoracic and Vascular Anesthesia, Vol 20, No 3 (June), 2006: pp 414-437
Ventricular dysfunction • Volume Overload • Pressure Overload
Hematologic dysfunction • Erythrocytosis • Hyper-viscosity • Iron deficiency anemia
Hemostatic Dysfunction • Thrombocytopenia • Platelet function abnormalities • Disseminated intravascular coagulation • Decreased production of coagulation factors • Impaired liver function • Vitamin K deficiency • Primary fibrinolysis
Renal dysfunction • Hypercellular glomeruli • Basement membrane thickening • Focal interstitial fibrosis • Tubular atrophy • Hyalinization of afferent and efferent arterioles.
Neurologic disease Cerebral emboli / thrombosis Cerebral abscess
Strategy for management of ACHD patient through non-cardiac surgery
1- Define the Condition • Primary lesion • Previous palliative and corrective surgeries • Residual and sequelae
2- Assess the Surgical Risk • Predictors and risks of the proposed surgical procedure itself • Specific ACHD risk factors • Other co-morbid conditions
3- Develop a Management Plan • Understanding of anatomy and physiology • Hemodynamic goals • Perioperative management
HISTORY & PHYSICAL EXAMINATION • Assess functional status • Symptoms, signs of right sided failure • Symptoms, signsof left sided failure • Symptoms of low cardiac output • Arrhythmias • Cyanosis & its sequelae
De-airing • All intravenous lines must be meticulously de-aired. • Patent foramen ovaleis present in approximately 25% of adults
Indications for Prophylaxis against IEC in CHD* • Unrepaired cyanotic CHD, including palliative shunts and conduits • Completely repaired congenital heart defect with prosthetic material or device, whether placed by surgery or by catheter intervention, during the first 6 months after the procedure** • Repaired CHD with residual defects at the site or adjacent to the site of a prosthetic patch or prosthetic device (which inhibit endothelialization) • Previous IE • *Except for the conditions listed above, antibiotic prophylaxis is no longer recommended for any other form of CHD. • **Prophylaxis is reasonable because endothelialization of prosthetic material occurs within 6 months after the procedure.
Premedication Patients often anxious Cognitive impairments Psychosocial issues Premedication with anxiolytics and hypnotics must be undertaken very cautiously.
Monitoring Non-invasive Invasive • ECG • NIBP • Pulse oximetry • End tidal capnogram - Art. catheterization - CVP - PAC - TEE
Choice of anesthetics • There are no evidence-based recommendations to guide the anesthetic management of patients with CHD undergoing non-cardiac surgery.
Fluid management • Minimizing the NPO interval • Preoperative hydration • Maintenance of adequate intravascular volume • Adjustment of the transfusion threshold.
Positive Pressure Ventilation • Control pulmonary vascular resistance • Reduces systemic venous return, in patients with single ventricle physiology
Postoperative Management PACU vs. ICU Major risk factors during the postoperative period: • Bleeding. • Dysrhythmias. • Thromboembolic events.
Postoperative Management • Post-operative analgesia • Fluid Management