Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
85 Cards in this Set
- Front
- Back
Chronic Obstructive Pulmonary Disease
|
chronic disease of the airways characterized by persistent airflow limitation that is:
1) progressive with no reversibility |
|
Causes of COPD
|
Interaction of Environmental factors and host facotrs
|
|
Environmental Factors that can cause/affect COPD
|
1) particles inhaled by individual that leads to inflammation
2) Cigarette Smoke - most important modifiable 3) Occupational Dust/Chemicals - pollution |
|
Host Factors that can cause/affect COPD
|
1) a1-antitrypsin (AAT) deficiency - early onset
2) airway hyperresponsiveness 3) insufficient lung growth |
|
Pathophysiology of COPD
|
1) Inflammation - exposure to noxious particles
2) Oxidative Stress - oxidants damage proteins/lipids 3) Proteinases - released from inflammatory cells 4) Airways, alveoli, blood vessels affected - chronic inflammation leads to repeat injury and repair which leads to scarring AND increased mucus secretion |
|
Signs/Symptoms of COPD
|
1) Dyspnea
2) Cough 3) Sputum production 4) Cyanosis of mucus membranes (progression) 5) "Barrel chest" 6) shallow breathing 7) increased respiratory rate |
|
Spirometry for diagnosis of COPD
|
REQUIRED for diagnosis
FEV1/FVC < 70% |
|
4 aspects of COPD to be considered for assessment
|
1) Symptoms
2) Spirometry 3) Exacerbation Risk 4) Presence of Co-morbidities |
|
Assess symptoms in COPD diagnosis
|
use validated questionnaires
1) mMRC 2) CAT |
|
Assess Spirometry in COPD diagnosis
|
performed after administration of Short acting bronchodilator
FEV1/FVC <70% |
|
GOLD Classification of Airflow Limitation: MILD (I)
|
FEV1 > 80%
|
|
GOLD Classification of Airflow Limitation: MODERATE (II)
|
50% < FEV1 < 80%
|
|
GOLD Classification of Airflow Limitation: SEVERE (III)
|
30% < FEV1 < 50%
|
|
GOLD Classification of Airflow Limitation: VERY SEVERE (IV)
|
FEV1 < 30%
|
|
Assess Exacerbation risk in COPD
|
2+ exacerbations/year
|
|
Common comorbidities with COPD
|
1) CV disease
2) skeletal muscle dysfunction 3) metabolic syndrome |
|
Desired outcomes of COPD
|
1) PREVENTION
2) minimize progression |
|
Goals of therapy of COPD
|
1) relieve symptoms
2) improve exercise tolerance AND overall health status 3) Prevent disease progression |
|
Non-Pharm Therapy in COPD
|
1) Education
2) Smoking cessation 3) Pulmonary Rehab (groups B-D) 4) Immunizations (annual flu & PPSV) 5) Long-term oxygen Therapy (resting PaO2 < 55 or SaO2 < 88%) |
|
Types of medications used in COPD
|
1) Bronchodilators
2) Inhaled Corticosteroids 3) PDE-4 Inhibitors |
|
3 Classes of Bronchodilators for COPD
|
1) Beta Agonists
2) Anticholinergics/Antimuscarinics 3) Methylxanthines |
|
MOA of Beta Agonists
|
stimulate beta receptor -- increase cAMP -- smooth muscle relaxation -- antagonism of bronchoconstriction
|
|
Beta Agonists used in COPD
|
1) Albuterol - not FDA approved (SABA)
2) Levalbuterol - not FDA approved (SABA) 3) Arformoteral (Brovana) (LABA) 4) Formoterol (Foradil, Perforomist) (LABA) 5) Salmeterol (Serevent) (LABA) 6) Indacaterol (Arcapta, Neohaler) (LABA) |
|
Place in Therapy for Beta Agonists for COPD
|
SABA - first line for Group A
LABA - Groups B-D |
|
MOA of anticholinergics/antimuscarinics for COPD
|
inhibition of muscarinic cholinergic receptors -- bronchodilation
decrease mucus gland secretion |
|
Anticholinergics used in COPD
|
1) Ipratropium (Atrovent) (SHORT)
2) Aclidinium (Tudorza, Pressair) 3) Tiotropium (Spiriva) |
|
Duration of Aclidinium and Spiriva
|
A) 12 hours
B) 24 hours |
|
Place in Therapy of Anticholinergics for COPD
|
Short Acting: initial therapy for Grp A
Long Acting: for Group B-D |
|
MOA of Methylxanthines
|
inhibit PDE -- increased cAMP
Inhibit Calcium Ion influx to smooth muscle Prostaglandin antagonism |
|
Place in Therapy of Methylxanthines for COPD
|
1) intolerant or unable to use inhaled bronchodilators
2) limited role due to drug interactions and variability in dosing |
|
MOA of inhaled corticosteroids for COPD
|
Reduce capillary permeability to decrease mucus
inhibit release of proteolytic enzymes inhibit prostaglandins HELP WITH INFLAMMATION |
|
Place in Therapy of Inhaled Corticosteroids in COPD
|
*Not well established*
Recommended in severe - very severe disease and frequent exacerbations (Groups C and D) |
|
Combination production with Long-Acting bronchodilator and ICS for COPD
|
Fluticasone/Vilanterol (Breo, Ellipta)
|
|
MOA of PDE 4 inhibitor for COPD
|
selectivity inhibit PDE type 4 -- increase cAMP -- decreased inflammation
|
|
PDE 4 inhibitor used in COPD
|
Roflumilast (Daliresp)
|
|
Dosing of Roflumilast (Daliresp) for COPD
|
500mcg once daily with or without food
|
|
ADRs of Roflumilast (Daliresp)
|
1) GI (N/V/D)
2) Weight loss (~2kg) 3) Psychiatric (insomnia, anxiety, depression, suicidal) |
|
Drug interactions with Roflumilast (Daliresp)
|
*Metabolized by CYP3A4*
decrease levels (rifampin, phenytoin) - inducers increase levels (erythromycin, ketoconazole) - inhibitors |
|
Place in therapy of Roflumilast (Daliresp) in COPD
|
reduce risk of exacerbations in severe - very severe COPD associated with chronic bronchitis and a history of exacerbations
|
|
Recommended First Choice Therapy for Group A
|
Short acting anticholinergic PRN
OR Short acting beta agonist PRN |
|
Recommended First Choice Therapy for Group B
|
Long-Acting Anticholinergic
OR Long-Acting Beta Agonist |
|
Recommended First Choice Therapy for Group C
|
Inhaled corticosteroid + long-acting beta agonist
OR Inhaled corticosteroid + long-acting anticholinergic |
|
Recommended First Choice Therapy for Group D
|
Inhaled Corticosteroid + Long Acting Beta Agonist and/or long-acting anticholinergic
|
|
Other Pharmacotherapy for COPD
|
1) alpha1-antitrypsin replacement therapy
2) Antibiotics 3) Expectorants and mucolytics (WATER is best) 4) Narcotics |
|
Dietary Supplements for COPD
|
1) Vitamins E,C, and beta carotene
|
|
Surgical Interventions in COPD
|
1) Bullectomy - removal of large air spaces
2) Lung Volume Reduction Surgery - remove parts of lung to reduce hyperinflation 3) Lung Transplantation - FEV1 < 20% and pulmonary HTN/ cor pulmonale AND exacerbations |
|
COPD exacerbation
|
acute event characterized by a worsening of the patient's respiratory symptoms that is beyond normal day-to-day variations and leads to a change in medication
|
|
COPD exacerbations are caused by
|
1) Respiratory tract infections (viral or bacterial)
2) Air pollution 3) unknown |
|
Symptoms and Signs of COPD exacerbation
|
1) increased sputum volume
2) worsening dyspnea 3) Chest tightness 4) Increased need for bronchodilators 5) Fever 6) wheezing 7) use of accessory muscles 8) Deteriorated mental status |
|
Cardinal Symptoms of COPD exacerbation
|
1) Worsening Dyspnea
2) Increased sputum volume 3) increased sputum purulence |
|
Mild COPD exacerbation
|
1 cardinal symptom PLUS at least one of the folowing:
1) URTI within 5 days 2) Unexplained fever 3) increased wheezing 4) increased cough 5) increased RR or HR >20% above baseline |
|
Moderate COPD Exacerbation
|
2 cardinal symptoms
|
|
Severe COPD Exacerbation
|
3 cardinal symptoms
|
|
Indications for Hospital Assessment/Admission in COPD Exacerbation
|
1) marked increase in intensity of symptoms
2) Severe underlying COPD 3) Onset of new physical signs (cyanosis, edema) 4) Failure of exacerbation to respond to therapy 5) Older age |
|
Indications for ICU admission in COPD exacerbation
|
1) Severe dyspnea that responds inadequately to initial emergency therapy
2) Changes in mental status 3) Worsening of hypoxemia and/or severe/worsening respiratory acidosis 4) need for invasive mechanical ventilation |
|
Non-Pharm Treatment of COPD Exacerbation
|
1) Supplemental Oxygen Therapy - saturation > 88-92%
2) Non-invasive mechanical ventilation |
|
Pharm Therapy for COPD exacerbation
|
1) Bronchodilators- increased doses and frequency (SABA preferred)
2) Corticosteroids - oral therapy preferred 3) Antimicrobials - 3 cardinal symptoms present, 2 cardinal symptoms and one is increased sputum purulence, mechanical ventilation |
|
Antibiotics used for uncomplicated COPD exacerbations
|
1) Macrolides (azithromycin, clarithromycin)
2) 2nd or 3rd gen cephalosporins 3) Doxycycline |
|
Cor Pulmonale
|
Right-sided heart failure secondary to pulmonary HTN
Treatment includes long-term oxygen therapy and diuretics along with COPD management |
|
Polycythemia
|
Increased number of RBCs secondary to chronic hypoxemia (HCT >55%)
Treated with oxygen therapy or periodic phlebotomy |
|
Respiratory Syncytial Virus
|
Single stranded RNA in Pneumovirus
Type A(severe), Type B(milder) Highly contagious!!!!! |
|
Presentation of RSV in adults/adolescents
|
common cold with significant sinus drainage
|
|
Presentation of RSV in children
|
1) starts as URTI
2) <2 years old = progress to LRTI |
|
HIGH RISK FACTORS for RSV
|
1) <2yrs old with chronic lung disease (BPD)
2) <2yrs old with congenital heart disease (CHF, pulmonary HTN) 3) born before 35weeks w/ congenital abnormalities of airways or neuromuscular disease 4) premies born <28 weeks and are <12 months old at start of RSV season 5) premies born between 29-32 weeks and are <6 months old at the start of season 6) Premies born between 32-35 weeks and are <3 months old at start of season and have 1 of the following: daycare, sibling less than 5 yrs old |
|
Signs and Symptoms of RSV
|
*Non-Specific*
1) low grade fever (<100.5, most wont have) 2) irritability (cranky, crying) 3) Lethargy 4) Poor feeding (young patients) 5) Rhinorrhea and congestion 6) Cough, dyspnea, wheezing in LRTI |
|
Treatment of RSV
|
1) SUPPORTIVE CARE - MAINSTAY OF THERAPY
|
|
Bronchodilators used in RSV
|
1) widely used in the past but not proven to be effective
2) clinically still used to see if patients benefit 3) most have viral trigger for a reactie airway disease (similar to asthma) 4) used to treat RAD not the RSV |
|
Inhaled Hypertonic Saline (3%) for RSV
|
1) thins secretions by drawing fluid to it
2) produces bronchospasms as an adverse effect 3) using this may lead to need for prophylactic albuterol q6h |
|
Ribavirin for RSV
|
*ONLY DRUG WITH FDA INDICATION FOR RSV*
1) must be started within 72 hours of onset of infection 2) 6g/day via neb over 12-18 hours for 3-14 days 3) TERATOGENIC |
|
Prophylaxis of RSV
|
*HIGHEST RISK ONLY -- 6 risk factors*
1) Synagis (Palivizumab) - monoclonal antibody; 15mg/kg IM monthly over 5 months 2) Numax (motavizumab) - monoclonal antibody with higher affinity for RSV fusion proteins |
|
3 forms of Croup
|
1) Viral - not life threatening
2) Epiglottitis - life-threatening 3) Bacterial Tracheitis - life threatening |
|
Viral Croup
|
Most common
affects younger children in fall and early winter Inflammation of entire airway exists, but edema of SUBGLOTTIC space! |
|
Signs/Symptoms of Viral Croup
|
Prodrome: URTI
1) barking like cough and inspiratory stridor 2) fever is absent or low grade 3) Severe--stridor at rest, air hunger, cyanosis |
|
Treatment of Viral Croup
|
MILD: managed at home and oral rehydration
Stridor Present: oxygen, Racemic Epinephrine 2.25% (DO NOT USE ALBUTEROL) Dexamethasone |
|
Dose of Dexamethasone for Viral Croup
|
0.6mg/kg IM for 1 dose only!!!
|
|
Eppiglottitis
|
*TRUE MEDICAL EMERGENCY*
epiglottis and other supraglottic structures swell and obstruct the airway Cause: H. Influenza type B |
|
Signs/Symptoms of Epiglottitis
|
*Sudden Onset*
1) fever 2) dysphagia 3) drooling 4) muffled voices 5) inspiratory retractions 6) Sniffing-Dog Position |
|
Treatment of Epiglottitis
|
1) endotracheal intubation performed immediately
2) Antibiotic (gram + cocci and beta lactam) -- Cefuroxime |
|
Bacterial Tracheitis
|
bacterial superinfection of the mucosa effected by viral croup resulting in inflammatory edema, purulent secretions and pseudomembranes
Cause: Staph aureus |
|
Signs/Symptoms of Bacterial Tracheitis
|
1) early infection mimics viral croup
2) then high fever, toxic look, progressive airway obstruction 3) sudden respiratory arrest or progressive respiratory failure (risk is high) |
|
Treatment for Bacterial Tracheititis
|
1) intubation is necessary in most cases
2) antibiotic (cover Staph aureus and H influenzae) |
|
TRADITIONAL: Antibiotic used in bacterial tracheitits
|
Cefotaxime
|
|
Antibiotic used in bacterial tracheititis in community acquired MRSA in highly prevalent
|
Clindamycin
|
|
Antibiotic used in bacterial tracheititis in patient is highly toxic or has multple organ involvement
|
Vanco
|
|
Shut the hell up Ellie---don't make fun of my spelling mistakes!
|
no
|