L12: Physiotherapy Management of Patients Undergoing Cardiac Surgery Flashcards
What is the cardiac disease progression?
What are the 6 charateristics of Cyanotic Heart Disease as congenital cardiac disease?
- Tetralogy of Fallot
- Transposition of great arteries
- Tricuspid atresia
- Truncus arteriosus
- Total anomalous pulmonary venous drainage
- Eisenmenger’s syndrome
What are the 2 charateristics of Acyanotic Heart Disease as congenital cardiac disease?
- Left-to-right shunt (ASD, VSD, PDA)
- Coarctation of aorta
What are 2 congenital cardiac disease?
- Cyanotic Heart Disease
- Tetralogy of Fallot
- Transposition of great arteries
- Tricuspid atresia
- Truncus arteriosus
- Total anomalous pulmonary venous drainage
- Eisenmenger’s syndrome
- Acyanotic Heart Disease
- Left-to-right shunt (ASD, VSD, PDA)
- Coarctation of aorta
What are 4 acquired cardiac diseases?
- Ischaemic heart disease
- Coronary artery disease
- Valvular heart disease
- Aortic, mitral, pulmonary or tricuspid valves
- Diseases affecting great vessels
- Aorta (dissection, aneurysm, transection)
- Pulmonary artery (embolism – acute & chronic)
- Pericardial disease
- Constriction
- Effusion
What are 4 characteristics of Coronary Artery Bypass Grafting (CABG)?
- For critical stenosis due to coronary artery disease
- Overall 2-3% operative mortality, though risk is stratified to individual (1%-31% mortality)
- Indicated in those refractory to medical therapy and/or likely to have better prognosis with surgical intervention
- Arteries or veins harvested and grafted to aorta and coronary arteries
- Does not remove blockage – bypasses it
What are 4 characteristics of Valve repair / replacement?
- Indicated for severe stenosis or regurgitation
- Aortic and mitral valve most common
- Prosthetic valves are either mechanical or tissue
- Mechanical valves:
- Titanium, carbon or metal
- Longer lasting
- Anti - coagulation for life
- Biological valves:
- Human (allograft/ autograft) or animal (xenograft) tissue
- Bioprosthesis deteriorate after 8-15 years, but only require anticoagulation for 3 months
- Mainly used in elderly patients
- Mechanical valves:
- Transcatheter valve replacement
What are 3 mechanical valves in valve repair / replacement?
- Titanium, carbon or metal
- Longer lasting
- Anti - coagulation for life
What are 2 biological valves in valve repair / replacement?
- Human (allograft/ autograft) or animal (xenograft) tissue
- Bioprosthesis deteriorate after 8-15 years, but only require anticoagulation for 3 months
- Mainly used in elderly patients
What are 5 features of all surgical procedures?
- Anaesthesia
- Surgical incision
- Organ support
- Surgical procedure
- Closure
What are 6 features of CABG as a surgical procedure?
- Anaesthesia
- Harvest grafts
- Median sternotomy
- Cardiopulmonary bypass +/-
- Hypothermia
- Cardioplegia
- Arrests electrical and mechanical activity
What are 5 features of open heart surgery as a surgical procedure?
- Anaesthesia
- Median sternotomy +/- graft harvest
- Cardiopulmonary bypass, hypothermia
- Cardioplegia
- Sternal stabilisation
What are 5 features of valve repair/replacement as a surgical procedure?
- Anaesthesia
- Median sternotomy
- Cardiopulmonary bypass +/-
- Hypothermia
- Cardioplegia
- Arrests electrical and mechanical activity
What are 7 surgical approaches?
-
Median sternotomy
- Majority of cardiac surgery
- Hemi- sternotomy
- Posterolateral thoracotomy
- Repair of descending aorta and some trauma
- Minimally invasive surgery
- Transcatheter
- Transapical
- Transfemoral
- Transaortic / ministernotomy
- Thoracoscopic
- Robotic-assisted
What are the 4 characteristics of bypass cardiopulmonary circuit?
- First successfully employed 1953
- Allows bypass of heart & lungs
- Greatly expanded field of cardiac surgery
- Motionless heart
- Bloodless field
- Most cardiac surgery employs bypass
What are the 4 steps of Coronary Artery Bypass Grafting?
What are the 4 steps of a Mitral Valve Repair?
What are the goals of CABG grafts?
provide patients with grafts which have the best long-term patency
What are the 3 donar sites of CABG grafts? What is the gold standard?
- LITA / LIMA (left internal thoracic (mammary) artery)
- Greater saphenous vein (60-70% patency after 10 years)
- Radial artery (Uncommon (can get P&Ns)
gold standard is the internal thoracic artery (90% patency at 15 years)
What are 7 short term effects of (Left) Internal Thoracic (Mammary) Graft (LIMA) as a CABG? What is the long term effect?
- Higher pulmonary complication rates
- Reduction in lung function
- Increased risk of pleural effusion
- Increased risk of phrenic nerve injury affecting diaphragmatic function
- Bilateral: potential for poorer sternal healing
- Affect circulation breast
- No special precautions
- Keep origin and use distal part
Long term:
- Lasts long
What are 3 effects of Saphenous vein as a CABG?
- Few restrictions to activity
- Decreased venous return, some problems with venous pooling
- No special precautions
What are 4 effects of radial artery grafts as a CABG?
- Risk of gapping of incision site
- Paraesthesia
- Decreased circulation
- Consider exercises to facilitate circulation, return of ROM and muscle power
What are 5 characteristics of Minimally Invasive Direct Coronary Artery Bypass (MIDCAB)?
- No CPB
- Keyhole surgery (minithoracotomy)
- Faster recovery, less pain, lower infection rate
- Fewer complications
- Needs stabilisation system
What are the 6 characteristics of Off-Pump coronary artery bypass (OPCAB)?
- Uses a mechanical stabiliser to stabilise apex of heart and coronary arteries
- Heart is beating during procedure
- Similar outcomes to bypass but technically more difficult
- Does not reduce pulmonary complication rates (associated with sternotomy)
- Reduced risk of stroke or memory problems (pumphead)
- Faster recovery and shorter hospital stay, fewer blood transfusions, and fewer unwanted inflammatory/immune response issues
What are the 3 characteristics of a TAVI? What are the 3 types?
- Transcatheter Aortic Valve Implantation (TAVI)
- Percutaneous (PAVR)
- Access methods
- Transfemoral (Femoral artery)
- Hemi-sternotomy/ transaortic
- Transapical (Apex of heart)
- Types
- Corevalve
- Edwards- Sapien
- Lotus
When is a TAVI indicated?
For high risk patients (older) with severe symptomatic native aortic valve stenosis necessitating valve replacement
- Unable to tolerate open heart surgery (high risk patients)
What are 10 characteristics of TAVI?
- Sterile procedure
- Heparin
- Retrograde approach: Through femoral artery “aorta “aortic valve (transfemoral)
- +/- Balloon aortic valvuloplasty
- +/- Rapid pacing 200-220 BPM (no forward CO) for 15-45 seconds
- Implantation of bioprosthesis
- Recovery in CCU
- 2 days CCU, 3 days monitored bed
- Antibiotic cover as per AVR
- Aspirin
What are 8 possible complications of TAVI?
- Vascular: Perforation, dissection, bleeding
- Feed through blood vessel
- Inability to cross native valve
- Malposition
- Leaks (paravalvular) “predictor of mortality
- Hemodynamic instability
- CVA
- Stroke 2 X as likely as OHS (atherothrombotic emboli)
- Loss of LV guide wire position
What are 3 limitations of TAVI?
- Significantly increased costs
- Inability to remove the calcified aortic valve
- High incidence of paravalvular leakage
- Incomplete annular sealing