'Flesh-eating' bacteria attack elderly man.

Hanoi – A 70-year-old man, injured in the leg while collecting seafood, subsequently suffered a swollen foot that had become necrotic upon admission to the hospital. He was diagnosed with Aeromonas infection, also known as "flesh-eating" bacteria.

On June 22nd, Dr. Hoang Manh Ha, head of the Trauma Surgery Department at the Central Hospital for Tropical Diseases, stated that the patient had been receiving intensive care for five days in a state of septic shock and necrosis spreading to the thigh and abdomen. Laboratory tests diagnosed cellulitis of the right thigh, lower leg, and foot due to Aeromonas infection.

Aeromonas hydrophila (AH) is a gram-negative bacillus that can cause rapid necrosis of inflamed tissues, hence it is called the "flesh-eating" bacterium. The disease has led to amputations of limbs in many people, and in some cases, death.

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The doctor prescribed antibiotics, intensive care, and transferred the patient to the Trauma Department for emergency surgery, debridement of necrotic tissue, and thorough irrigation. On the first day after surgery, the symptoms of inflammation in the right thigh and iliac fossa had subsided, the swelling and redness had decreased, the skin was less tense and bulging, and wrinkles had appeared. The patient continued treatment with dressing changes and debridement of necrotic tissue. After more than a month, the elderly man underwent a skin graft. The grafted skin healed completely, and the patient was able to begin rehabilitation exercises for his right lower leg and foot.

Aeromonas is a common bacterium found in nature, often present in aquatic environments, causing disease in fish, shrimp, and amphibians. The three main forms of the disease include: diarrhea from ingesting contaminated water; biliary tract and bloodstream infections in patients with cirrhosis; and necrotizing soft tissue infections, which can lead to septicemia in healthy individuals if they have abrasions or contact with contaminated water or mud containing Aeromonas.

To prevent illness, experts advise people to limit contact with contaminated water, especially when they have cuts or abrasions on their bodies. Those who work regularly in contaminated water environments should wear appropriate protective equipment. If there are signs of swelling or necrosis in the wound area after contact with contaminated water, they should immediately go to a medical facility for timely treatment.

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Thuy Quynh

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