Test 2 Flashcards
What are the organ transplant Criteria?
NYHA class III, unresponsive to medical management
Normal function or reversible dysfunction of organ system.
No malignancy >5 yrs
Life expectancy <1 yr
No contraindications to immunosuppression
Medication and follow up compliance
Financial requirements
Psychologically sound, good social support
Ambulatory with rehab potential
Who are some transplant candidates for heart issues?
Severe CAD
End-stage cardiomyopathy or heart failure
Congenital abnormalities
Who are transplant candidates for lung issues?
Severe COPD, IPF, CF, pulmonary artery hypertension
What are some alternatives for lung transplantation?
LVRS- reducing size of lungs in patients with emphysema, improve symptoms an dpulmonary function, decrease CO2 retention
BiPAP- decrease WOB,HA, daytime fatigue, increase quality of lseep, activity level
What are some alternatives to heart transplants?
Pharmacologic- diuretics, ACE inhibitor, ionotropes
Mechanical circulatory support
- 6 weeks of exercise training recommended for bridge to transplant candidates
Pre-Op aerobic training program for Pre Lung Transplant
3-5x/week
At 70-80% age predicted max HR, or dyspnea scales
30-40 minutes (target)
Watch O2 stats
Pre-Op aerobic training Program Pre heart Transplant
Exercise as tolerated without. Increasing symptoms
Interval training, slow build up
Watch cardiac symptoms, BORG 11-13/20 or 3-5/10
What can limit Phase I of post op treatment in cardiac rehab?
- Resting HR>120
- HR and systolic BP increase of 30 mmHG
- RPE= 15/20 or 5/10
- dizziness, SOB
- EKG abnormalities
- excessive fatigue
- mental confusion
What are some lung transplant specifics to look for Post-Op?
Airway clearance techniques
- postural drainage
- percussion/vibration
- flutter valve
- active cycle of breathing
Thoracic mobility
Breath control re-training
Activity tolerance- aerobic capacity
- HR limits backed by RPE and dypnea scale
- O2 sat
Heart transplant HR response
Higher resting HR (90-110 bpm)
Donor heart is denervated
Slow rise to exercise stimulus >5min
- Hr rise due to incr leves of circulating catecholamines
HR rise only to 80% of age predicted max
Slower recovery
Use long warm up and long cool down, RPE and O2 sats to gauge exercise response
Heart transplant BP response
Normal initially but may develop HTN over time (due to meds)
Normal resting systolic, higher than pretransplant
Elevated diastolic at rest - due to LV stiffness
Incr response to isometric exercises
What is the max VO2 consumption for heart and lung transplant?
Heart transplant- 60-70% of normal
Lung transplant- 40-60% of normal
What are some transplant meds?
Immune suppression/ anti-rejection
- calcineurin inhibitor, blockes cell division , reduce replication of helper and killer Tcells- cyclosporine, tacrolimus
- inhibit WBC production- mycophenolate
- inhibit WBC function- sirolimus
Corticosteroid, decrease killer T cells - prednisone
What are some side effect of transplant med?
Acne Anxiety Hair loss HA *High blood pressure *Osteoporosis *tremors Weight gain Kidney damage Etc..
What are some signs and symptoms of acute rejection?
Low-grade fever Inc resting blood pressure Hypotension with activity Myalgias (soreness/pain in muscle) Fatigue Decreased exercise tolerance Ventricular dysrhythmias
What are some indications that suggest need for mechanical circulatory support?
Severe heart failure- NYHA class IV
Severe cardiomyopathy, cardiogenic shock Bridge to trnasplant Destination therapy Bridge to recovery Bridge to decision
Contraindications to mechanical circulatory support
Body Surface Area BSA- pump may be only able to handle certain body size
Pregnancy
Can’t tolerate anticoagulation therapy
What are some common components of the mechanical circulatory support?
Driveline
System controller/console
Power source
Total artificial heart
70cc or 50 cc sizes
Replaces both ventricles all 4 valves
Pneumatic—> pulsatile
Physiological response- partial fill (3/4) full eject
SV up to 70 mL
CO up to 9.5 L/min
Fixed rate 100-140bpm
HeartWare HVAD
Impeller spins blood —> continuous flow
Carddiac output up to 10L/min
N palpable pulse can’t use manual cuff pressure instead use doppler ultrasound
Thoratec Heart Mate II
Assist the failing heart
Implkanted beneath diaphragm, in preperitoneal or intraabdominal space
Rotor(magnet), located inside a thin-walled titanium duct, spins on bearings —> cont flow
CO up to 10L/min
Designed for several years of circulatory support- BBT, DT
Only device approved by the FDA for people waiting for transplant traveling
Heart Mate 3
MagLev tech allows rotor to be “suspended” by magnetic forces- less friction, wear and tear, reduces blood trauma
Artificial pulse tech designed to promote “washing” of the pump to prevent stasis
CO up to 10 L/min
Indicated for DT, BTT and bridge to recovery
ECMO
Short term- days to weeks , waiting for organ recovery
For management of lfethreatening cardiac failure when no other form of treatment has been or is likely to be successful
- veno-arterial: venous blood diverted from RA, pumped across a membrane oxygenator and heat exchanger, then back to aortic arch
For ventilatory support
- veno-venous: venous blood withdrawnn from RA, circulates through CO2 scrubber and membrane ooxygenator, blood returned via cannula and directed through tricuspid valve
Physical therapy intervention for MCS
May begin as early as POD 1
Before initiating mobility- check position of stabilization belt, system controller, driveline
Monitor cardiovascular response to upright positioning, functional mobility, exercise tolerance (phase I cardiac rehab)
- vitals , EKG change, Borg/RPe
- doppler US
- pump rate, speed, flow, SV
Different Cardiothoracic incisions lead to what post-op manifestations
Protective psoture- trunk flexed forwards/ to side of incision
DEcreased inspsiratory effort, chest expansion = restrictive lung pathology
Impaired cough
UE limitations
What are some post-op complications?
Prone to aspiration, atelectasis —>collapsed lung/alveoli
- Related to decreased arousal, surgical pain, restricted lung capacity
Phrenic nerve irritation or compression trauma
- common in thoracic and upper abdominal surgery
PE, DVT
- due to restricted mobility, bed rest, recumbency
Pt management for postOP patients
Optimize O2 transport - lung volumes, chest wall mobility, gas exhange, mucociliary transport, circulation, tissue perfusion
Minimize work of breathing, aspiration risk, undue work of the heart
Max arousal,maintain/restore mental status and sleep/wake cycle
Maintain/restore normal muslce length, ligament integrity
Max cardiopulm enndurance, aerobic capacity, functional capacity
PT education- post op complication prevention, early mobilization, activity progression, porecautions
Post op patients using mobilization exercises as assesment and treatment
Upright positioning progression: supine-> sit-> stand
Bed mobility- rolling, supine, sit
Transfer —> sit to stand, bed —>chair
Gait - distance/duration
Mobilization/exercise session considerations to take before planning session
Warm-up, steady state, coold-down, recovery phases whenever possible
Timing- coordinate with meds, other tests/procedures, not after heavy meal
Prepare necessary equipment, assistance workspace
Sign/symptoms of exercise intolerance
> 20 mm drop in systolic, >10 mm rise or drop in diastolic
10 bpm drop in HR with increased workload
HR too fast, too slow
- acute- limit response to 120bpm or 20-30bpm above resting
Monitor EKG- PVCs, ST elevation/depression, heart blocks, Twave inversion, change from baseline
Monitor O2 saturation - cardiac <95% -Pulmonary<90% - stop if >5% drop from baseline Dyspnea index 3/4 or Borg>5/10 or RPE >15/20
Angina,duspnea, dizziness, pallor, confusion
Pt request to stop
Incentive spirometer
- encourages deep breath
- post surgery, immobile patients
- to re-open airways, improve oxygenation
- increase surfactant production
- 10 breaths/hour
Also used to maintain and increase inspiratory muscle strength and endurance
Sternal precautions for open heart surgery
Varies with surgeon/facility
In general 6-8 weeks- limit shoulder flex/abd <90 deg
No lifting >5-10lbs
-Avoid UE WB, unilateral reaching posteriorly (trunk rotation + shoulder ext/ horizontal ABd), horizontal shoulder ABd
Thoracotomy/VATS precautions
Encourage shoulder and scapular ROM- flex,ext,abd ,add, horizontal abd, horizontal add, butterfly, shrugs, finger wall crawl, scapular protraction/retraction
- lack of movement could lead to frozen shoulder
- avoid heavy lifting (>10Lbs)
- vats 1-2 weeks
- thoracotome - 6-8 wks
Abdominal precautions after surgery
Avoid straining abdominals
- log-roll bed mobility
-splint cough
Avoid lifting >5-10lbs
-standing up straight and laying flat hurts
Pacemaker/ICD pracautions Post op
Check for contras for arm lifting
- keep shoulder flex/abd <90deg
- 1-6 weeks
Avoid heavy lifting <10lbs for 1-6 weeks
Avoid contact sports,
Avoid electromagnetic interference, hih voltage
- carry cell phone >6 in away from device on contralateral side
Carry ID indicating implant
Notify airport security screeners
Goal of ICU care
Provide intense, life-preserving, specialized care with teh view of eventual return to maximal functional participation in life and activity
Monitoring:
- hemodynamic stability
- optimal oxygen transport
- fluid and electrolyte balance
Hemodynamic monitoring
EKG- HR , rhythm
BP
- cuff
- arterial line
Pulse oximeter - O2 sat
RR
Central venous pressure
Pulmonary artery catheter
What are some lines we will se on a patient in ICU?
Peripheral IV
Central line
PICC line
Arterial line
What are some tubes you will see on an ICU patient?
Chest tube
Feeding tube- nasla, oral, percutaneous
Foley catheter
Rectal tube
Endotracheal tube
Oxygen tubing
What are indication for the use of mechanical ventilation?
PaO2< 50 mmHg with supplemental O2
RR>30
Vital capacity <10L/min
Negative inspiratory force <25 cm H2O
Acute repiratory failure
Airway protection from aspiration
Reversal of respiratory muscle fatigue
Respiratory distress
Signs and symptoms of respiratory distress
RR>35
Paradoxical breathing pattern (reverse normal breathing insp abs out), use of accessory muscle or dyspnea
Desaturation- O2 sat<90% or decrease of PaO2
Decrease in pH <7.25-7.30 associated with increasing PaCO2
change in HR >20 bpm
Change in BP >20 mmHG
angina, cyanosis, cardiac arrythmias, aagitation, panic, diaphoresis
Change in level of consciousness
Positive pressure ventilators
(+) pressure ventiltion the machine forces air into lungs
Classified based on method used to stop inspiratory phase and allow expiration
- cycling method: pressure cycled, volume cycled, time cycled
Circuit- wide-bore tubing that connects patient to ventilator via ETT, tracheal tube, or face mask
Assist-control (A/C)
Ventilation mode
Pt initiates breaths, ventilator delivers preset tidal volume
- gives respiratory muscle greatest amount of rest
Pressure support PS
Ventilation mode
Pt initiates breaths, ventila3tor delivers preset pressure (reduces work of breathing)
Constant positive airway pressure CPAP
Pt breathes spontaneously , ventilator maintains positive airway pressure throughout breathing cycle
PEEP
Positive end- expiratory pressure
Pressure maintained by ventilator in airways at end of expiration
Normal physiologic PEEP is maintained by surfactant = 5cm H2O
Ventilator settings
Parameters established to provide the necessary support to meet patient’s ventilatory & oxygenation needs- FiO2, RR, Vt
Dependent on: ABGs, vital signs, airway pressures, lung volumes, pathophysiologic condition, including ability to spontaneously breathe
What is intubation?
Artificial airway into trachea
Oral or nsal endotracheal tube
Indication: upper airway obstruction, inability to protect lower airway from aspiration, inability to clear secretions from lower airways, need for positive pressure mechanical ventilation
Tracheostomy tube
Inserted into trachea below level of teh vocal cords
Usually follow prolonged endotracheal intubation
Benefits: reduce laryngeal injury, improved oral comfort, decreaed airflow resistance, increased effectiveness of airway care, feasibility of oral feeding and vocalization
Weaning criteria
Resolution event/disease
Maximized nutrition, stability, fluid and electrolyte balance
RR<35
FiO2<50%
O2 sat>90%
PEEP<5cmH2O
Negative inspiratory force of 20-30 cmH2O
Preferably alert & cooperative
Psychologically ready
Post-intensive care syndrome
health problems that remain after critical illness
- ICU acquired weakness- may take >1yr to fully recover
- cognitive dysfunction
- sleep disorders
- PTSD, anxiety, depression
Intermittent claudication (IC)
Main symptom of peripheral arterial disease
Characterized by pain, aching, or fatigue in exercising leg muscles
Pain goes away with rest
It is ANGINA of the legs
How common is Peripheral artery Disease? PAD
Patients older than 70 or older than 50 years who smoke and have diabetes have a prevalence of nearly 30%
-1/3 have PAD
What is the 5yr, 10 yr , 15 yr survival rate for patients with PAD?
5 yr-70%? 30% mortality
10- 50%
15- 20%
How to Dx/ Rx PAD/PVD?
Can use angiogram
ABI (ankle brachial index)
Balloon angioplasty, stent, CABG
Exercise
Thrombus superficial vs deep
Superficial: saphenous
Deep: femoral or Iliac
Superficial thrombus: non-life threatening
DVT: Important
- can be caused in anterior tibial vein
Deep Vein thrombosis DVT
Risk factors: LE surgery, immobility, trauma to endothelium
Signs: pain, redness, edema
Life threatening if move to pulmonary or brain
No PT Rx because we don’t want it to move
Anticoagulation
Prevention: early mobilization (ankle pumps)
Valvular incompetence/insufficiency
Varicose veins- abnormal dilation of superficial veins
Cause: heredity, homonal changes, prolonged standing (no muscle contraction) obesity, pregnancy
Signs: edema, discoloration of distal legs
Spider veins
Not serious
Burst capillaries
Varicose vein Rx:
Exercise, stop smoking, antiplatelet drugs, elastic stockings, compression sclerotherapy
Risk for clot formation (main problem of varicose)