gold 2013 farmacologia clinica
TRANSCRIPT
JORGE GUERREROResidente 1er añoMedicina Falimiar y
ComunitariaFarmacología Clínica
Morbidity and mortality
aimed at immediately
relieving
reducing the impact of symptoms reducin
g the ri
sk o
f futu
re
adverse h
ealth e
vents
Focus on both the short-term and long
term impact of COPD on our patients.
EPIDEMIOLOGY
11.78% (1988-1994) 15.66% (1999-2004)
14.78% (2005-2008)
Clin Gastroenterol Hepatol. 2011 Jun;9(6):524-530.e1; quiz e60. doi: 10.1016/j.cgh.2011.03.020. Epub 2011 Mar 25
DEFINITION CHRONIC OBSTRUCTIVE PULMONARY DISEASE
Preventable Treatable
PERSISTENT
Chronic
Response not Reversible
This definition does not use the terms chronic bronchitis and emphysema and excludes asthma (reversible airflow limitation).
DEFINITION CHRONIC OBSTRUCTIVE PULMONARY DISEASE
Chronic bronchitis, defined as the presence
of cough and sputum production for at least
3 months in each of 2 consecutive years, is
not necessarily associated with airflow
limitation.Emphysema, defined as destruction of the alveoli.
SYNTOMS OF COPD
CARDINAL SYNTOMS
WHAT CAUSE COPD ? TABACCO SMOKERS
INDOOR AIR POLLUTION
WHAT CAUSE COPD ?
Biomass fuel used for cooking and heating in poorly vented dwellings, a risk factor that particularly affects
OCCUPATIONAL DUST AND CHEMICALS
WHAT CAUSE COPD ?
OUTDOOR AIR POLLUTION
WHAT CAUSE COPD ?
Total burden of inhaled particles
DIAGNOSIS OF COPD
+ SPIROMETRY (Air flow limitation)Simple test to measure the amount of air a
person can breathe out, and the amount of time taken to do so. FVC (Forced Vital Capacity): maximum volume of air
that can be exhaled during a forced maneuver. FEV1 (Forced Expired Volume in one second):
volume expired in the first second of maximal expiration after a maximal inspiration. This is a measure of how quickly the lungs can be emptied.
FEV1/FVC: FEV1 expressed as a proportion of the FVC, gives a clinically useful index of airflow limitation.
DIAGNOSIS OF COPD
WHY DO SPIROMETRY FOR COPD?
Spirometry is needed to make a clinical diagnosis of COPD.
A normal value for spirometry effectively excludes the diagnosis of clinically relevant COPD.
Together with the presence of symptoms, spirometry helps gauge COPD severity and can be a guide to specific treatment steps.
ASSESMENT OF COPD
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation (using spirometry) • Risk of exacerbations• Comorbidities
ASSESS SYMTOMS
measure clinical control self administered
measures of health status91 and predicts future mortality risk
mM
RCA - C
B - D
ASSESMENT OF COPD
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation • Risk of exacerbations• Comorbidities
DEGREE OF AIR FLOW LIMITATION
ASSESMENT OF COPD
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation • Risk of exacerbations• Comorbidities
CONCEPT. Acute event. Worsening of the patient’s respiratory symptoms. leads to a change in medication.
ASSESSMENT OF RISK OF EXACERBATIONS
The best predictor of having frequent
exacerbations
=
Previous Exacerbations2 0R MORE PER YEARGOLD 2 + Exace
rbatio
ns = G
OLD 3 0r 4
ASSESMENT OF COPD
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation • Risk of exacerbations• Comorbidities
ASSESSMENT OF COMORBIDITIES
ASSESMENT OF COPD
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation • Risk of exacerbations• Comorbidities
COMBINED COPD ASSESMENT
• Symptoms (impact on patient’s health status)
• Degree of airflow limitation • Risk of exacerbations• Comorbidities
COMBINED COPD ASSESMENT
When assessing risk, choose the highest risk according to GOLD
grade or exacerbation history. (One or more hospitalizations
for COPD exacerbations should be considered high risk.
Patient Group A – Low Risk, Less Symptoms
Typically GOLD 1 or GOLD 2 (Mild or Moderate airflow limitation) and/or 0-1 exacerbation per year and mMRC grade 0-1 or CAT score < 10
Patient Group B – Low Risk, More Symptoms
Typically GOLD 1 or GOLD 2 (Mild or Moderate airflow limitation) and/or 0-1 exacerbation per year and mMRC grade ≥ 2 or CAT score ≥ 10
Patient Group C – High Risk, Less Symptoms Typically GOLD 3 or GOLD 4 (Severe or Very
Severe airflow limitation) and/or ≥ 2 exacerbations per year and mMRC grade 0-1 or CAT score < 10
Patient Group D – High Risk, More
Symptoms Typically GOLD 3 or GOLD 4 (Severe or Very
Severe airflow limitation) and/or ≥ 2 exacerbations per year and mMRC grade ≥ 2 or CAT score ≥ 10
Example: Imagine a patient with a CAT score of 18, FEV1 of 55% of predicted, and a history of 3 exacerbations within the last 12 months.
Example: Imagine a patient with a CAT score of 18, FEV1 of 55% of predicted, and a history of 3 exacerbations within the last 12 months.
TO BE CONTINUED…
TRATAMIENTO
ABANDONO DEL TABAQUISMO
Mayor capacidad de intervencion en la historia natural del EPOC.
Vareniclina
EJERCICIO CARDIOVASCULAR
TRATAMIENTO FARMACOLOGICO
Reducir los sintomas.Reduce la frecuencia y severidad de las exacerbaciones.
Controla la tolerancia para el inicio del ejercicio.
Terapia Individualizada.Disponibilidad del medicamento.Costo del medicamentoRespuesta por parte del paciente
TRATAMIENTO FARMACOLOGICO
Acerca de la Preescripción
BRONCODILATADORES
Fundamental para el CONTROL de SÍNTOMAS
Se prefiere por vía Inhalada La escogencia entre: beta-2-agonists,
anticolinergicos, teofilina o terapia combinada…’ Los de larga acción, producen mayor tiempo,
libre de síntomas. Combinacion de broncodilatadores de clase
farmacológica diferente disminuye el riesgo de efectos secundarios.
TRATAMIENTO FARMACOLOGICO
TRATAMIENTO FARMACOLOGICO
CORTICOIDES INHALADOS
Pacientes con FEV1< 60%.Tratamiento regular: Disminuye los
síntomas.Relacionados con aumento
Incidencia de Neumonía.NO usar en monoterapia.
CORTICOIDES ORALES
No usar tratamiento a largo plazo con corticosteroide oral.
TRATAMIENTO FARMACOLOGICO
METILXANTINAS (Bloqueo R Adenosina)
Menos efectivas y toleradas que los broncodilatadores de larga acción.
La adición de Teofilina con Salmeterol, aumento en el VEF1 y alivio de la disnea.
Bajas dosis de Teofilina disminuye los síntomas, mas no la función pulmonar.
TRATAMIENTO FARMACOLOGICO
TRATAMIENTO FARMACOLOGICO
INHIBIDORES 4-P-DIESTERASA (AMPc)
Reduce las exacerbaciones en sinergismo con los corticoides orales o broncodilatadores de larga acción.
TRATAMIENTO FARMACOLOGICO
AGENTES MUCOLÍTICOSPacientes con esputo viscoso, se
benefician, sin embargo los beneficios son leves.
AGENTES ANTITUSIVOS
TRATAMIENTO FARMACOLOGICO
Example: Imagine a patient with a CAT score of 18, FEV1 of 55% of predicted, and a history of 3 exacerbations within the last 12 months.
TRATAMIENTO FARMACOLOGICO
TRATAMIENTO FARMACOLOGICO
OTROS TRATAMIENTOS
USO DE VACUNAS
OTROS TRATAMIENTOS
PaO2 menor (55 mmHg) or SaO2 88%,
con o sin hipercapnia confirmada dos
veces en un periodo de 3 semanas.
PaO2 entre (55 mmHg) y (60 mmHg), o
SaO2 of 88%, con evidencia de HTP,
edema periferico sugestivo de ICC, o
policitemia (hematocrito > 55%).
EXACERBACIONES