In sepsis, blood pressure drops, resulting in shock. Major organs and body systems, including the kidneys, liver, lungs, and central nervous system may stop working properly because of poor blood flow. A change in mental status and very fast breathing may be the earliest signs of sepsis.
The organs more frequently affected are kidneys, liver, lungs, heart, central nervous system, and hematologic system. This multiple organ failure is the hallmark of sepsis and determines patients' course from infection to recovery or death.
As severe sepsis usually involves infection of the bloodstream, the heart is one of the first affected organs.
As sepsis worsens, blood flow to vital organs, such as your brain, heart and kidneys, becomes impaired. Sepsis may cause abnormal blood clotting that results in small clots or burst blood vessels that damage or destroy tissues. Most people recover from mild sepsis, but the mortality rate for septic shock is about 40%.
Bacterial infections are the most common cause of sepsis. The source of the infection can be anywhere in your body. Most often, the infection will start in your lungs, abdomen or urinary tract.
When treatment or medical intervention is missing, sepsis is a leading cause of death, more significant than breast cancer, lung cancer, or heart attack. Research shows that the condition can kill an affected person in as little as 12 hours.
Organ failure, including kidney failure, is a hallmark of sepsis. As the body is overwhelmed, its organs begin to shut down, causing even more problems. The kidneys are often among the first to be affected.
Severe breathlessness or sleepiness. It feels like you're going to die or pass out. Skin mottled or discoloured. An extremely high or a very low temperature; repeated vomiting; seizures; and a rash which doesn't fade when you press a glass against it are also possible 'red flags'.
High heart rate or weak pulse. Fever, shivering, or feeling very cold. Confusion or disorientation. Shortness of breath.
Weakness or aching muscles. Not passing much (or any) urine. Feeling very hot or cold, chills or shivering. Feeling confused, disoriented, or slurring your speech.
"When an infection reaches a certain point, this can happen in a matter of hours." Sepsis usually starts out as an infection in just one part of the body, such as a skin wound or a urinary tract infection, Tracey says.
Those at the highest risk of developing sepsis include the very young and the very old (infants and seniors), as well as people with chronic or serious illnesses, such as diabetes and cancer, and those who have an impaired immune system. People who are malnourished can also contract infections more easily.
In sepsis, the liver is injured by pathogens, toxins, or inflammatory mediators. The injury progresses from active hepatocellular dysfunction to liver damage and then to liver failure.
Most sepsis is caused by bacterial infections, but it can also be caused by viral infections, such as COVID-19 or influenza; fungal infections; or noninfectious insults, such as traumatic injury.
Many conditions mimic sepsis by meeting criteria for SIRS.
These conditions include: pulmonary embolism (PE), adrenal insufficiency, diabetic ketoacidosis (DKA), pancreatitis, anaphylaxis, bowel obstruction, hypovolemia, colitis, vasculitis, toxin ingestion/overdose/withdrawal, and medication effect.
The condition can arise suddenly and progress quickly, and it's often hard to recognize. Sepsis was once commonly known as “blood poisoning.” It was almost always deadly. Today, even with early treatment, sepsis kills about 1 in 5 affected people.
Stage one: Systemic Inflammatory Response Syndrome (SIRS)
Sepsis can be hard to identify, but is typically denoted by a very high or low body temperature, high heart rate, high respiratory rate, high or low white blood cell count and a known or suspected infection.
If the infection has spread or you have a generalized infection, you may develop other signs and symptoms, such as fever, fatigue, pain, etc. Sometimes however, you may have an infection and not know it, and not have any symptoms.
They concluded that septic patients have a high mortality rate after two years of hospital discharge compared to patients recovered from other diseases; the percentage of death ranged from 22% to 70%.
Sepsis occurs in response to an infection. When sepsis is not recognized early and managed promptly, it can lead to septic shock, multiple organ failure and death.
The early symptoms of sepsis include: a high temperature (fever) or, due to changes in circulation, a low body temperature instead. chills and shivering.
Sepsis happens when an infection you already have triggers a chain reaction throughout your body. Infections that lead to sepsis most often start in the lung, urinary tract, skin, or gastrointestinal tract. Without timely treatment, sepsis can rapidly lead to tissue damage, organ failure, and death.
Most people make a full recovery from sepsis. But it can take time. You might continue to have physical and emotional symptoms. These can last for months, or even years, after you had sepsis.