What is coagulase negative Staphylococcus species?

What is coagulase negative Staphylococcus species?

Coagulase-negative staphylococci (CoNS) are a type of staph bacteria that commonly live on a person’s skin. Doctors typically consider CoNS bacteria harmless when it remains outside the body. However, the bacteria can cause infections when present in large amounts, or when present in the bloodstream.

What causes Staphylococcus coagulase negative?

Coagulase-negative staphylococci gain entry through breached skin surfaces, commonly during medical or nursing procedures. The key mechanism is the ability of the bacteria to form biofilms on the surfaces of implanted medical equipment, where the bacteria replicate and disseminate within the systemic circulation [9].

How do you identify coagulase-negative staphylococci?

Coagulase-negative staphylococci generally are not fully identified, are called Staphylococcus epidermidis, and are considered contaminants when isolated from blood cultures. In a cancer hospital during 6 months, 46 patients had multiple blood cultures (mean, 3.1) which yielded coagulase-negative staphylococci.

What antibiotics treat coagulase negative staph in urine?

If coag-negative staph is considered pathogenic, vancomycin is the preferred treatment. Second-line alternatives that are also active in the setting of methicillin resistance such as telavancin, linezolid, or daptomycin may be considered based on patient factors and the site of infection.

Is staph Haemolyticus a contaminant?

The most common species detected were Staphylococcus epidermidis, Staphylococcus hominis, and Staphylococcus haemolyticus. These three species accounted for nearly 98% of the clinically significant isolates and 89% of the contaminants. The isolation of other species almost always represented contamination.

What can happen if staph infection is not treated?

Most staph infections of the skin are mild. They can be treated with antibiotics and have no lasting effects. When staph infections are left untreated, they can lead to organ failure and death. In rare cases, methicillin-resistant Staphylococcus aureus (MRSA) infection can be deadly if the infection isn’t controlled.