ILE VII- SSTIs
What are purulent infections commonly caused by?
S. aureus
What are non-purulent infections commonly caused by?
Strep. pyogenes
Describe folliculitis.
Superficial infection of the hair follicles; purulent
Describe furuncle.
Infection of a hair follicle that extends through the dermis into the
subcutaneous tissue; boil; purulent
Describe carbuncle.
Infection involving several adjacent follicles that are deeper than
furuncles which typically drain pus from several orfices; purulent
Describe abscess.
Collections of pus within the dermis and deeper layers of the skin;
fluctuant, tender, painful nodules with a circular rim of swelling; purulent
What are some risk factors for purulent infections?
Compromised skin integrity, immunosuppression, inadequate blood
supply, excessive skin moisture, close physical contact, poor hygiene,
crowded living conditions
What makes a purulent SSTI mild?
Localized infection with no systemic signs or symptoms.
, How do we treat mild purulent infections?
I&D only
What makes a purulent SSTI moderate?
Signs and symptoms of systemic infection, but the patient is clinically
stable.
What are some systemic signs and symptoms of infection?
Fever, chills, increased WBC, high heart rate, low blood pressure
How do we treat moderate purulent SSTIs?
I&D/C&S + TMP/SMX or Doxy
-Clindamycin is the alternative
What do we use to treat moderate purulent SSTIs that are defined
MRSA?
TMP/SMX
What do we use to treat moderate purulent SSTIs that are defined
MSSA?
Dicloxacillin or Cephalexin
Treated inpatient or outpatient
What makes a purulent SSTI severe?
Failed I&D, immunocompromised, two SIRS (fever, HR>90, RR>24,
WBC>12,000), clinically unstable
How do we treat severe purulent SSTIs?
What are purulent infections commonly caused by?
S. aureus
What are non-purulent infections commonly caused by?
Strep. pyogenes
Describe folliculitis.
Superficial infection of the hair follicles; purulent
Describe furuncle.
Infection of a hair follicle that extends through the dermis into the
subcutaneous tissue; boil; purulent
Describe carbuncle.
Infection involving several adjacent follicles that are deeper than
furuncles which typically drain pus from several orfices; purulent
Describe abscess.
Collections of pus within the dermis and deeper layers of the skin;
fluctuant, tender, painful nodules with a circular rim of swelling; purulent
What are some risk factors for purulent infections?
Compromised skin integrity, immunosuppression, inadequate blood
supply, excessive skin moisture, close physical contact, poor hygiene,
crowded living conditions
What makes a purulent SSTI mild?
Localized infection with no systemic signs or symptoms.
, How do we treat mild purulent infections?
I&D only
What makes a purulent SSTI moderate?
Signs and symptoms of systemic infection, but the patient is clinically
stable.
What are some systemic signs and symptoms of infection?
Fever, chills, increased WBC, high heart rate, low blood pressure
How do we treat moderate purulent SSTIs?
I&D/C&S + TMP/SMX or Doxy
-Clindamycin is the alternative
What do we use to treat moderate purulent SSTIs that are defined
MRSA?
TMP/SMX
What do we use to treat moderate purulent SSTIs that are defined
MSSA?
Dicloxacillin or Cephalexin
Treated inpatient or outpatient
What makes a purulent SSTI severe?
Failed I&D, immunocompromised, two SIRS (fever, HR>90, RR>24,
WBC>12,000), clinically unstable
How do we treat severe purulent SSTIs?
