Mendelson's syndrome

Mendelson's syndrome
Synonyms	Aspiration pneumonitis
Pronounce	N/A
Specialty	N/A
Symptoms	Cough, dyspnea, tachypnea, cyanosis, fever
Complications	Acute respiratory distress syndrome (ARDS), pneumonia
Onset	Rapid, typically within hours of aspiration
Duration	Varies, can be acute or lead to chronic complications
Types	N/A
Causes	Aspiration of gastric acid during anesthesia
Risks	Pregnancy, emergency surgery, inadequate fasting before surgery
Diagnosis	Clinical evaluation, chest X-ray, arterial blood gas analysis
Differential diagnosis	Aspiration pneumonia, chemical pneumonitis, pulmonary edema
Prevention	N/A
Treatment	Supportive care, oxygen therapy, mechanical ventilation if needed
Medication	N/A
Prognosis	Generally good with prompt treatment, but can be severe
Frequency	Rare, due to improved anesthesia techniques
Deaths	N/A

Mendelson's syndrome is a rare medical condition that is characterized by chemical pneumonitis or lung inflammation due to aspiration of gastric contents. It is named after Dr. Curtis Lester Mendelson, who first described the condition in 1946.

Causes

Mendelson's syndrome typically occurs when the stomach's contents are regurgitated and then inhaled (aspirated) into the lungs. This can happen during general anesthesia, especially in pregnant women and individuals who have not fasted before undergoing surgery.

Symptoms

The symptoms of Mendelson's syndrome can vary in severity, but they often include:

• Rapid onset of shortness of breath
• Fever
• Cough with or without sputum production
• Chest pain
• Cyanosis (bluish discoloration of the skin due to lack of oxygen)

Diagnosis

The diagnosis of Mendelson's syndrome is usually based on the patient's medical history and physical examination. Additional tests such as a chest X-ray or CT scan may be performed to confirm the diagnosis and assess the extent of lung damage.

Treatment

Treatment for Mendelson's syndrome primarily involves supportive care, including oxygen therapy and mechanical ventilation if necessary. Antibiotics may be given to prevent or treat secondary bacterial infection. In severe cases, corticosteroids may be used to reduce inflammation in the lungs.

Prevention

Prevention of Mendelson's syndrome is primarily achieved by ensuring that patients fast for a sufficient period before undergoing surgery. Additionally, the head of the bed may be elevated during anesthesia to prevent regurgitation and aspiration of stomach contents.

See also

• Aspiration pneumonia
• Chemical pneumonitis
• Pulmonary aspiration

References

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