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| ==Treatment== | | ==Treatment== |
| Emergency treatment follows the principles of [[cardiopulmonary resuscitation]]. Treatment of the underlying cause is required. [[Mechanical ventilation]] may be required. | | Emergency treatment follows the principles of [[cardiopulmonary resuscitation]]. Treatment of the underlying cause is required. [[Mechanical ventilation]] may be required. |
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| ==External Links==
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| [http://www.emedicine.com/med/topic2011.htm eMedicine Respiratory Failure]
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| [http://fr.wikipedia.org/wiki/Insuffisance_respiratoire]
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| {{Respiratory pathology}} | | {{Respiratory pathology}} |
| {{Intensive care medicine}} | | {{Intensive care medicine}} |
| {{SIB}}
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| [[de:Ateminsuffizienz]] | | [[de:Ateminsuffizienz]] |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] M.Umer Tariq [3]
Overview
Respiratory failure is a medical term for inadequate gas exchange by the respiratory system. Respiratory failure can be indicated by observing a drop in blood oxygen level (hypoxemia) and/or a rise in arterial carbon dioxide (hypercapnia) which can be written as (PaO2 < 60 mmHg, PaCO2 >45 mmHg).
Classification into type I or type II relates to the absence or presence of hypercapnia respectively. (Values in kPA being PO2 below 8kPA and PCO2 above 6.7kPa
Types
Type 1
- Type 1 respiratory failure is defined as hypoxia without hypercapnia, indeed the CO2 level may be normal or low. It is typically caused by a ventilation/perfusion mismatch; the air flowing in and out of the lungs is not matched with the flow of blood to the lungs. This type is caused by conditions that affect oxygenation like:
1.parenchymal disease (v-q mismatch)
2.diseases of vasculature and shunts.
Type 2
- Type 2 respiratory failure is defined build up of carbon dioxide that has been generated by the body. The underlying causes are reduced breathing effort (in the fatigued patient), increased resistance to breathing (such as in asthma) or an increase in the area of the lung that is not available for gas exchange (such as in emphysema).
Causes of Hypoventilation
Drugs
- Codeine,
- Clozapine,
- Fentanyl,
- Gamma-Hydroxybutyric acid,
- Heroin,
- Ketamine,
- Lidocaine,
- Labetalol,
- Lorazepam,
- Morphine,
- Nitrazepam,
- Opiate,
- Oxymorphone,
- Procainamide (patient information),
- Sodium thiopental,
- Triazolam,
- Zopiclone,
more on Dyspnea
Complete Differential Diagnosis of Causes of Respiratory Failure
(In alphabetical order)
Complete Differential Diagnosis of the Causes of Respiratory failure
(By organ system)
Cardiovascular
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Atrial septal defect (ostium primum),
Ebstein anomaly,
Eisenmenger syndrome,
Fallot tetralogy,
Pulmonary valve stenosis,
Transposition of great arteries,
Tricuspid valve stenosis,
Ventricular septal defect,
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Chemical / poisoning
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3-Quinuclidinyl benzilate,
Abrin,
Aldicarb,
Alpha-amanitin,
Barium nitrate,
Bungarotoxin,
Carbon monoxide poisoning,
Cocaine,
Cone snail,
Furfural,
Snakebites (Patient information),
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Congenital
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Atrial septal defect (ostium primum),
Bland-White-Garland Syndrome,
Congenital Central Hypoventilation Syndrome,
Congenital diaphragmatic hernia,
Fallot tetralogy,
Fetal circulation, persistent,
Respiratory distress syndrome (neonatal),
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Dermatologic
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No underlying causes
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Drug Side Effect
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Ear Nose Throat
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No underlying causes
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Endocrine
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No underlying causes
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Environmental
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Asbestosis,
Coal worker pneumoconiosis,
Smoke inhalation,
Sulphur dioxide,
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Gastroenterologic
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Hepatic failure,
Hepatopulmonary syndrome,
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Genetic
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Achondrogenesis,
Acute Porphyria,
Alpha 1-antitrypsin deficiency,
Atelosteogenesis, type II,
Becker's muscular dystrophy,
Carnitine palmitoyltransferase II deficiency,
Cystic fibrosis,
Duchenne's Muscular Dystrophy,
Familial dysautonomia,
Hereditary haemorrhagic telangiectasia,
Osteogenesis imperfecta,
Thanatophoric dysplasia,
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Hematologic
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Acute Porphyria,
Cholesterol Emboli Syndrome,
Fat embolism,
Sepsis,
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Iatrogenic
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Blood transfusion,
EVAR,
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Infectious Disease
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Babesiosis,
Botulism,
Crimean-Congo hemorrhagic fever,
Hantavirus Pulmonary Syndrome,
Heartworm,
Post-polio syndrome,
Rabies,
Tetanus,
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Musculoskeletal / Ortho
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Kyphoscoliosis,
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Neurologic
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Amyotrophic Lateral Sclerosis,
Meningitis,
Polyrediculitis,
Zellweger syndrome,
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Nutritional / Metabolic
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Metabolic Acidosis,
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Obstetric/Gynecologic
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No underlying causes
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Oncologic
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Malignant Mesothelioma,
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Opthalmologic
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No underlying causes
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Overdose / Toxicity
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Acetylsalicylic acid,
Alcohol,
Bufotenin,
Clitocybe dealbata,
Colchicine,
Cytisine,
Dicofol,
Saxitoxin,
Tetrodotoxin,
Tick paralysis,
Vinyl chloride,
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Psychiatric
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No underlying causes
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Pulmonary
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Acute lung syndrome,
Acute Respiratory Distress Syndrome,
Alpha 1-antitrypsin deficiency,
Atelectasis,
Bronchial asthma,
Bronchiectasis,
Bronchiolitis,
Bronchiolitis obliterans,
Bronchogenic carcinoma,
Bronchopulmonary dysplasia,
Chronic Obstructive Pulmonary Disease,
Cystic adenomatoid malformation of lung,
Emphysema,
Eosinophilic pneumonia,
Fibrosing alveolitis,
Flail chest,
Interstitial fibrosis,
Laryngo-/Bronchospasm,
Legionella pneumophila,
Pleural effusion,
Pneumonia,
Pneumothorax,
Pulmonary alveolar proteinosis,
Pulmonary arterio-venous malformation,
Pulmonary edema,
Pulmonary embolism,
Pulmonary hypertension,
Pulmonary oedema,
Restrictive Lung Disease,
Status asthmaticus,
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Renal / Electrolyte
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Elecrolyte abnormalities,
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Rheum / Immune / Allergy
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Acute motor axonal neuropathy,
Anaphylaxis,
Angioedema,
Antiphospholipid Antibody Syndrome,
Devic's disease,
Guillain-Barre syndrome,
Hamman-Rich Syndrome,
Myasthenia Gravis,
Satoyoshi syndrome,
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Trauma
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Ebstein anomaly,
Flail chest,
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Urologic
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No underlying causes
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Miscellaneous
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Aspiration,
Foreign body,
Malignant hyperpyrexia,
Multiple organ dysfunction syndrome,
Near-drowning,
Reye's syndrome,
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Treatment
Emergency treatment follows the principles of cardiopulmonary resuscitation. Treatment of the underlying cause is required. Mechanical ventilation may be required.
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