By: dr ismah 
Ortho department 
1
2 
hospitals.unm.edu
• Skin and soft-tissue infections (SSTIs) are a common 
reason for presentation to outpatient practices, 
emergency rooms, and hospitals 
• They account for more than 14 million outpatient visits in 
the United States each year and visits to the emergency 
room and admissions to the hospital for them are 
increasing 
• Hospital admissions for SSTIs increased by 29% from 
2000 to 2004 
3 
Edelsberg J, Taneja C, Zervos M, et al. Trends in US hospital admissions 
for skin and soft tissue infections. Emerg Infect Dis 2009; 15:1516–1518.
4
5 
Erysipelas 
NF 
Cellulitis 
Gas 
gangrene 
Cleveland Clinic Journal of Medicine-2012-RAJAN-57-66
6 
Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: 
2014 Update by the Infectious Diseases Society of America
7
• Often caused by Group A β - haemolytic streptococci, 
(Streptococcus pyogenes) 
• The infected area is painful, hot and oedematous 
• Non-raised skin lesions with indistinct margin, sometimes with 
lymphangitis 
• There is usually no localization of the infection or pus 
formation 
• May associate with insect bites, trauma or ill fitting shoes 
• IV C Pen 2.4 Mu, IV Cloxacillin. Dressing with CHD cream 
Cleveland Clinic Journal of Medicine-2012-RAJAN-57-66 8
INDICATIONS FOR ADMISSION:- 
• Severe or rapidly worsening infection 
• Patient systemically unwell 
• Uncertainty regarding the diagnosis (need to out rule 
DVT) 
• Immunocompromised patient. Diabetes mellitus – if 
unstable 
• Children under one year of age or elderly without good 
home support 
Johnny Loughnane 
• Lack of response to home treatment Irish College at 48 of General hours Practitioners April 2006 
9
10 
Cellulitis
• An aggressive subcutaneous infection that tracks along 
the superficial fascia, which comprises all the tissues 
between the skin and underlying muscles 
Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: 
• Rapid progression 
• Physical exam 
 Skin bullae 
 Ischemic patches 
 Swelling, edema 
 Crepitus 
2014 Update by the Infectious Diseases Society of America 
11
12
• Features that suggest involvement of deeper tissues 
include 
(1) severe pain that seems disproportional to the clinical 
findings; (2) failure to respond to initial antibiotic therapy; 
(3) the hard, wooden feel of the subcutaneous tissue, 
extending beyond the area of apparent skin involvement; 
(4) systemic toxicity, often with altered mental status; 
(5) edema or tenderness extending beyond the cutaneous 
erythema; 
(6) crepitus, indicating gas in the tissues; 
(7) bullous lesions; 
(8) skin necrosis or ecchymoses 
13 
Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: 
2014 Update by the Infectious Diseases Society of America
Anaya DA, Dellinger EP. Necrotizing soft-tissue infection : 
diagnosis and management. ClinInfect Dis 2007; 44:705–710, 
Oxford University Press. 
14
15
• Surgical debridement 
• Antibiotic 
16 
Type 1 Type 2 
Polymicrobial infection. 
Immunocompromised. 
Group A strep 
Cloxacillin 2g IV q4-6h 
PLUS 
Metronidazole 500mg IV q8h 
PLUS 
Gentamicin1 5mg/kg IV q24h 
Benzylpenicillin 2-4 mega units IV 
q4h 
PLUS 
Clindamycin 600mg IV q8h 
ALTERNATIVES: 
3rd gen. Cephalosporins 
PLUS 
Metronidazole 500mg IV q8h 
OR 
β-lactam/β-lactamase inhibitors, e.g. 
Ampicillin/Sulbactam 1.5g IV q8h 
OR 
Amoxycillin/Clavulanate 1.2g IV q8h 
PLUS/MINUS 
Gentamicin1 5mg/kg IV q24h 
National_Antibiotic_Guideline_2008
• Clostridium perfringens 
• Gram-positive obligate anaerobic spore-forming rods that 
produce exotoxins 
• Causes muscle necrosis and vessel thrombosis, 
hemolysis and shock 
• Rx : Benzylpenicillin 2-4 mega units IV q4h PLUS 
Metronidazole 500mg IV q8h PLUS/MINUS Gentamicin1 
5mg/kg IV q24h 
17
swelling, 
edema, discoloration and 
ecchymosis, blebs and 
hemorrhagic bullae 
University of Kansas Medical Center- http://www.kumc.edu/ 18

Skin &soft tissue infection

  • 1.
    By: dr ismah Ortho department 1
  • 2.
  • 3.
    • Skin andsoft-tissue infections (SSTIs) are a common reason for presentation to outpatient practices, emergency rooms, and hospitals • They account for more than 14 million outpatient visits in the United States each year and visits to the emergency room and admissions to the hospital for them are increasing • Hospital admissions for SSTIs increased by 29% from 2000 to 2004 3 Edelsberg J, Taneja C, Zervos M, et al. Trends in US hospital admissions for skin and soft tissue infections. Emerg Infect Dis 2009; 15:1516–1518.
  • 4.
  • 5.
    5 Erysipelas NF Cellulitis Gas gangrene Cleveland Clinic Journal of Medicine-2012-RAJAN-57-66
  • 6.
    6 Practice Guidelinesfor the Diagnosis and Management of Skin and Soft Tissue Infections: 2014 Update by the Infectious Diseases Society of America
  • 7.
  • 8.
    • Often causedby Group A β - haemolytic streptococci, (Streptococcus pyogenes) • The infected area is painful, hot and oedematous • Non-raised skin lesions with indistinct margin, sometimes with lymphangitis • There is usually no localization of the infection or pus formation • May associate with insect bites, trauma or ill fitting shoes • IV C Pen 2.4 Mu, IV Cloxacillin. Dressing with CHD cream Cleveland Clinic Journal of Medicine-2012-RAJAN-57-66 8
  • 9.
    INDICATIONS FOR ADMISSION:- • Severe or rapidly worsening infection • Patient systemically unwell • Uncertainty regarding the diagnosis (need to out rule DVT) • Immunocompromised patient. Diabetes mellitus – if unstable • Children under one year of age or elderly without good home support Johnny Loughnane • Lack of response to home treatment Irish College at 48 of General hours Practitioners April 2006 9
  • 10.
  • 11.
    • An aggressivesubcutaneous infection that tracks along the superficial fascia, which comprises all the tissues between the skin and underlying muscles Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: • Rapid progression • Physical exam  Skin bullae  Ischemic patches  Swelling, edema  Crepitus 2014 Update by the Infectious Diseases Society of America 11
  • 12.
  • 13.
    • Features thatsuggest involvement of deeper tissues include (1) severe pain that seems disproportional to the clinical findings; (2) failure to respond to initial antibiotic therapy; (3) the hard, wooden feel of the subcutaneous tissue, extending beyond the area of apparent skin involvement; (4) systemic toxicity, often with altered mental status; (5) edema or tenderness extending beyond the cutaneous erythema; (6) crepitus, indicating gas in the tissues; (7) bullous lesions; (8) skin necrosis or ecchymoses 13 Practice Guidelines for the Diagnosis and Management of Skin and Soft Tissue Infections: 2014 Update by the Infectious Diseases Society of America
  • 14.
    Anaya DA, DellingerEP. Necrotizing soft-tissue infection : diagnosis and management. ClinInfect Dis 2007; 44:705–710, Oxford University Press. 14
  • 15.
  • 16.
    • Surgical debridement • Antibiotic 16 Type 1 Type 2 Polymicrobial infection. Immunocompromised. Group A strep Cloxacillin 2g IV q4-6h PLUS Metronidazole 500mg IV q8h PLUS Gentamicin1 5mg/kg IV q24h Benzylpenicillin 2-4 mega units IV q4h PLUS Clindamycin 600mg IV q8h ALTERNATIVES: 3rd gen. Cephalosporins PLUS Metronidazole 500mg IV q8h OR β-lactam/β-lactamase inhibitors, e.g. Ampicillin/Sulbactam 1.5g IV q8h OR Amoxycillin/Clavulanate 1.2g IV q8h PLUS/MINUS Gentamicin1 5mg/kg IV q24h National_Antibiotic_Guideline_2008
  • 17.
    • Clostridium perfringens • Gram-positive obligate anaerobic spore-forming rods that produce exotoxins • Causes muscle necrosis and vessel thrombosis, hemolysis and shock • Rx : Benzylpenicillin 2-4 mega units IV q4h PLUS Metronidazole 500mg IV q8h PLUS/MINUS Gentamicin1 5mg/kg IV q24h 17
  • 18.
    swelling, edema, discolorationand ecchymosis, blebs and hemorrhagic bullae University of Kansas Medical Center- http://www.kumc.edu/ 18

Editor's Notes

  • #3 erector pili muscle
  • #7 Purulent skin and soft tissue infections (SSTIs). Mild infection: for purulent SSTI, incision and drainage is indicated. Moderate infection: patients with purulent infection with systemic signs of infection. Severe infection: patients who have failed incision and drainage plus oral antibiotics or those with systemic signs of infection such as temperature >38°C, tachycardia (heart rate >90 beats per minute), tachypnea (respiratory rate >24 breaths per minute) or abnormal white blood cell count (<12 000 or <400 cells/μL), or immunocompromised patients. Nonpurulent SSTIs. Mild infection: typical cellulitis/ erysipelas with no focus of purulence. Moderate infection: typical cellulitis/erysipelas with systemic signs of infection. Severe infection: patients who have failed oral antibiotic treatment or those with systemic signs of infection (as defined above under purulent infection), or those who are immunocompromised, or those with clinical signs of deeper infection such as bullae, skin sloughing, hypotension, or evidence of organ dysfunction.
  • #11 Erysipelas: Raised, sharply demarcated margins
  • #18 Altenative:-- 3rd gen. Cephalosporins PLUS Gentamicin1 5mg/kg IV q24h