Dr. Sabah Awad MBCHB,DAEM,MCEM,EBEEM SQUH-ED 2014 Outpatient vs. Inpatient Treatment of...
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![Page 1: Dr. Sabah Awad MBCHB,DAEM,MCEM,EBEEM SQUH-ED 2014 Outpatient vs. Inpatient Treatment of Community-Acquired Pneumonia.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649db95503460f94aa9021/html5/thumbnails/1.jpg)
Dr. Sabah AwadMBCHB,DAEM,MCEM,EBEEM
SQUH-ED 2014
Outpatient vs. InpatientTreatment
of Community-Acquired Pneumonia
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Case no. 1
35 y Old Male Hx of fever, chest pain and productive cough since one week..No pmhxRA O2 sat 93RR 30/MHR 120/MTemp 39 cBp 110/75Lung sounds reveal a dullness in right side , and coarse breath sounds
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Case no. 2
68 y old Male DM , HPT,IHD Hx of productive cough Fever since 3days Fully consc. RA O2 sat 95 RR 28 /m ,HR 110/mTemp 38.5 c , Bp 100/60Lung sounds reveal a mild dullness in right base, no increased tympany, and coarse breath sounds with mild rales in right posterior lung base. He is not wheezing. The rest of his exam is normal.
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Guidelines for CAP……
American Thoracic Society (ATS)
Infectious Diseases Society of America (IDSA)
British Thoracic Society .(BTS)
Update of Practice Guidelines Management of CAP
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Pneumonias – Classification…..
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Types of Pneumonia
• Community-Acquired (CAP)• Health-Care Associated Pneumonia (HCAP)
– Hospitalization for > 2 days in the last 90 days– Residence in nursing home or long-term care facility– Home Infusion Therapy– Long-term dialysis within 30 days– Home Wound Care– Exposure to family members infected with MDR bacteria
• Hospital-Acquired Pneumonia (HAP)– Pneumonia that develops after 5 days of hospitalization Includes:
Ventilator-Associated Pneumonia (VAP) ICU Pneumonia (ICUAP)
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Community Acquired Pneumonia (CAP)
An acute infection of the pulmonary parenchyma that is
associated with some symptoms of acute infection, accompanied by the presence of an acute infiltrate on a chest radiograph, or auscultatory findings consistent with pneumonia, in a patient not hospitalized or residing in a long term care facility for > 14 days before onset of symptoms.
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Community Acquired Pneumonia (CAP)
Epidemiology
4-5 million cases annually ~500,000 hospitalizations – 20% require admission ~45,000 deaths Fewest cases in 18-24 yr group Probably highest incidence in <5 and >65 yrs Mortality disproportionately high in >65 yrs
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Hx:
P/E: most useful in predicting severity Physical exam may reveal fever, tachypnea, tachycardia.
Lung exam; increased tactile fremitus, dullness to percussion, decreased breath sounds, presence of rales or crackles
CXR is gold standard - may be normal in up to 7% on admission; assume pneumonia present if convincing hx and focal P/E
?
Fever/chills 85%
Dyspnea 70%
Purulent sputum
50%
Chest pain 40%
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CAP – The Two Types of Presentations
Classical• Sudden onset of CAP• High fever, shaking chills• Pleuritic chest pain, SOB• Productive cough• Rusty sputum, blood
tinge• Poor general condition• High mortality up to 20%
in patients with bacteremia
• S.pneumoniae causative
• Gradual & insidious onset• Low grade fever• Dry cough .• Confusion• Diarrhea. Abdominal pain • Low mortality 1-2%;
except in cases of Legionellosis
• Mycoplasma, Chlamydiae, Legionella, Ricketessiae, Viruses are causative
Atypical
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CAP – Laboratory Tests
• CBC with Differential
• BUN and Creatinine
• Liver enzymes
• Serum electrolytes
• Oxygen saturation
• ABG
• Gram stain of sputum
• Culture of sputum
• Pre Rx. blood cultures
• Septic work up
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Chest X-rayDiagnosis ,prognosis , pathogens…….
RUL
RML
RLL
LUL
Lingula
LLL
RUL
RML
RLL
LUL
Lingula
LLL
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Chest X-ray – Pneumonia
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Chest X-ray – Pneumonia
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Infiltrate Patterns and Pathogens
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Older, Unemployed, No social support Asthma, COPD; Steroid or bronchodilator use Chronic diseases, Diabetes, CHF, Neoplasia Amount of smoking.
CAP – Risk Factors for Hospitalization
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Age > 65 Bacteremia (for S. pneumoniae) S. aureus, MRSA , Pseudomonas Extent of radiographic changes Degree of immuno-suppression Amount of alcohol consumption
CAP – Risk Factors for Mortality….
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CAP – Age wise Incidence
<5 5-17 18-24 25-44 45-64 >65
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CAP – Complications… Hypotension and septic shock 3-5% Pleural effusion; Clear fluid + pus cells 1% Empyema thoracis pus in the pleural space Lung abscess – destruction of lung . Septicemia – Brain abscess, Liver Abscess Multiple Pyemic Abscesses
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CAP – Management Guidelines
Proper diagnosis :Hx, P/E, CXR Pathogen directed antimicrobial therapy
whenever possible Prompt initiation of Antibiotic therapy Decision to hospitalize based on prognostic
criteria – PORT , CRB65, CURB 65, SCAP Smart cop, ATS ,.. scores
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ICU admission = one major or 3 minor24
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SMART-COP CAP-PIRO A-DROP S-CAP
Systolic BP <90 mmHg (2 points)Chronic obstructive pulmonary disease or immunocompromised (1 point)
Age
Male ≥70 years
Female ≥75 years
Arterial pH <7.39
Multilobar infiltrates (1 point) Age >70 years (1 point) Dehydration BUN ≥1.2 mmol/l Systolic BP <90 mmHg
Albumin <35 g/l (1 point) Infection: bacteremia (1 point)Respiratory failure (SaO2 ≤90% or
PaO2 ≤60 torr)Confusion
Respiration rate (1 point)
Age ≤50 years: ≥25/min
Age >50 years: ≥30/min
Multilobar opacities (1 point) Orientation disturbance (confusion) BUN >1.7 mmol/l
Tachycardia ≥125 bpm (1 point) Shock (1 point) Systolic BP ≤90 mmHg Respiratory rate >30/min
Confusion (new) (1point) Severe hypoxemia (1 point) PaO2/FiO2 ratio <250
Oxygen (2 points)
Age ≤50 years:
PaO2 <70 mmHg or O2 sats≤93%
or PaO2/FiO2 <333
Age >50 years:
60 mmHg or O2 sats≤90% or
PaO2/FiO2 <250
Acute respiratory distress syndrome (1 point)
Multilobar infiltrates
pH <7.35 (2 points) Acute renal failure (1 point). Age ≥80 years
Score ≥3 Consider ICU0–2: low risk; 3: mild; 4: high; 5–8: very high Consider ICU
Score 4–5 Consider ICUOne major (BP or pH) or two out of six minor criteria Consider ICU
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CAP – Evaluation of a Patient
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CURB 65 Rule – Management of CAP
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07/25/2013 How Do I Think About Pneumonia? 29
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Classification of Severity - PORT
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CAP – Management based on PSI Score
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PORT Score
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PORT Score
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CAP – The Pathogens Involved
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Patient can be discharged home if all the following criteria:
Curb score 0-1 , PORT score Class I
Able to eat and drink
Pulse ≤100 beats per min
Respiratory rate ≤30 per min
Normal Systolic blood pressure according to the age and BP baseline .
Oxygen saturation ≥94 percent or if the resident had chronic obstructive pulmonary disease (COPD) ≥90 percent.
Social support and home care .
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Outpatient treatment
Previously healthy no comorbidity and no risk factors for drug-resistant A macrolide (azithromycin, clarithromycin, or
erythromycin) (strong recommendation; level I evidence)B. Doxycycline (weak recommendation; level III)
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Outpatient treatment….Presence of comorbidities, such as chronic heart, lung, liver, or renal disease; diabetes mellitus; alcoholism; malignancies; asplenia; use of immunosuppressing drugs; use of antimicrobials within the previous 3 months……..
• A respiratory fluoroquinolone (moxifloxacin, gemifloxacin, or levofloxacin [750 mg]) (strong recommendation; level I evidence) •A b-lactam plus a macrolide (strong recommendation; level I evidence) (High-dose amoxicillin [e.g., 1 g 3 times daily] or amoxicillin-clavulanate [2 g 2 times daily] is preferred; alternatives include ceftriaxone,cefpodoxime, and cefuroxime [500 mg 2 times daily]; doxycycline [level II evidence] is an alternative to the macrolide.)
?
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For hospitalized patients not requiring intensive care unit (ICU) admission, we suggest initial combination therapy … •An anti-pneumococcal beta-lactam (ceftriaxone, cefotaxime, ceftaroline, ertapenem, or ampicillin-sulbactam) plus a macrolide (azithromycin or clarithromycin ) • Monotherapy with a respiratory fluoroquinolone (levofloxacin or moxifloxacin)
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Inpatient, ICU treatment …… A b-lactam (cefotaxime, ceftriaxone, or ampicillin-sulbactam)plus either azithromycin (level II evidence) or a fluoroquinolone (level I evidence) (strong recommendation) (For penicillin-allergic patients, a respiratory fluoroquinolone and aztreonam are recommended.)
or•the above b-lactam plus an aminoglycoside and azithromycin
or•the above b-lactam plus an aminoglycoside and an antipneumococcal•fluoroquinolone (for penicillin-allergic patients, substitute aztreonam for the above b-lactam). (Moderate recommendation; level III evidence.)If MRSA is suspected, vancomycin (15 mg/kg IV every 12 hours, in seriously ill patients, a loading dose of 25 to 30 mg/kg may be given.For Pseudomonas infection, use an antipneumococcal, antipseudomonal b-lactam (piperacillin-tazobactam, cefepime,imipenem, or meropenem) plus either ciprofloxacin or levofloxacin (750-mg dose)
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0
10
20
30
40
50
60
70
80
90
0.5 1 2 3 4 5 6
Delay in treatment (hours) from hypotension onset
Surv
ival
(%)
Each hour of delay carries 7.6% reduction in survival
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Early treatment (within 48 h of the onset of symptoms) with oseltamivir or zanamivir is recommended for influenza A and B . (Strong recommendation; level I evidence.)
Use of oseltamivir and zanamivir is not recommended for patients with uncomplicated influenza with symptoms more than 48 h (level I evidence), but these drugs may be used to reduce viral shedding in hospitalized patients or for influenza pneumonia. (Moderate recommendation; level III evidence.)
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07/25/2013 How Do I Think About Pneumonia? 44
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• Patients should demonstrate some improvement in clinical parameters by 72 hours, although fever may persist with lobar pneumonia.
• Cough from pneumococcal pneumonia may not clear for a week.
• Abnormal chest radiograph findings usually clear within four weeks but may persist for7- 12 weeks in older individuals and those with underlying pulmonary disease
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Risk factors for treatment failure include : •Neoplasia .•Aspiration pneumonia .•Neurologic disease.•Multilobar pneumonia . •Infection with MRSA, Legionella, or gram-negative bacilli . •High Pneumonia Severity Index (PSI) (>90) . •Antibiotic-resistant pathogen .•Cavitation, pleural effusion .•Liver disease . •Leukopenia .
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CAP – Management summery…… Early antibiotic administration within 4-6 hours Empiric antibiotic Rx. as per guidelines (IDSA / ATS) PORT – PSI scoring and Classification of cases Early hospitalization in Class IV and V Change Abx. as per pathogen & sensitivity pattern Decrease smoking cessation - advice / counseling Arterial oxygenation assessment in the first 24 h Blood culture collection in the first 24 h prior to Abx. Pneumococcal & Influenza vaccination; Smoking
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Algorithmic Approach….
Step 1Step 1 Step 2Step 2Step 3Step 3
Step 4Step 4
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