Streptococcal pharyngitis: Difference between revisions

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#Gonococcal pharyngitis
#Gonococcal pharyngitis


== Treatment ==
== Treatment ==
===Treatment Algorithm by Centor Criteria===
 
{| style="width: 500px" border="1" cellpadding="1" cellspacing="1"
=== Treatment Algorithm by Centor Criteria ===
 
{| cellspacing="1" cellpadding="1" border="1" style="width: 333px; height: 129px;"
|-
|-
| '''Points'''<br/>
| '''Points'''<br>  
| '''Treatment'''<br/>
| '''Treatment'''<br>
|-
|-
| 4<br/>
| 4<br>  
| Rx without testing
| Rx without testing
|-
|-
| 3<br/>
| 3<br>  
| Rapid Strep Test
| Rapid Strep Test
|-
|-
| 2<br/>
| 2<br>  
| Rapid Strep Test
| Rapid Strep Test
|-
|-
| 1<br/>
| 1<br>  
| Do not test/treat
| Do not test/treat
|-
|-
| 0<br/>
| 0<br>  
| Do not test/treat
| Do not test/treat
|}
|}
*Likelihood of streptococcal pharyngitis in pts presenting with sore throat
 
**4 criteria = 50% PPV
*Likelihood of streptococcal pharyngitis in pts presenting with sore throat  
**3 criteria = 40% PPV
**4 criteria = 50% PPV  
**3 criteria = 40% PPV  
**0 criteria - 80% NPV
**0 criteria - 80% NPV


===Treatment Medications===
=== Treatment Medications ===
*Abx
 
**Tx can be delayed for up to 9 days and still prevent major sequelae
*Abx  
**Choices
**Tx can be delayed for up to 9 days and still prevent major sequelae  
***Penicillin
**Choices  
****250mg BID x 10d (child) or 500mg BID x 10d (adolescent)
***Penicillin  
***Bicillin
****250mg BID x 10d (child) or 500mg BID x 10d (adolescent)  
****25-50Kmg/kg IM x 1 (max dose = 1.2million)
***Bicillin  
***Azithromycin (penicillin allergic)
****25-50Kmg/kg IM x 1 (max dose = 1.2million)  
****12mg/kg QD (child) or 500mg on day 1; then 250mg on days 2-5
***Azithromycin (penicillin allergic)  
*Steroids
****12mg/kg QD (child) or 500mg on day 1; then 250mg on days 2-5  
*Steroids  
**Single dose of dexamethasone shortens duration of pain
**Single dose of dexamethasone shortens duration of pain



Revision as of 04:28, 24 November 2011

Background

  • Strep pharyngitis
    • Peak in 5-15yr old
    • Rare in <2yr of age
    • Accounts for only 15-30% of pharyngitis

Diagnosis

Clinical Features

  • Sore throat
  • Painful swallowing
  • Fever
  • N/V
  • Tonsillar exudate

Centor Criteria

  1. History of fever
  2. Absence of cough
  3. Lymphadenopathy
  4. Tonsillar exudate

DDx

  1. Viral pharyngitis
  2. PTA
  3. Retropharyngeal abscess
  4. EBV pharyngitis
  5. CMV pharyngitis
  6. Gonococcal pharyngitis

Treatment

Treatment Algorithm by Centor Criteria

Points
Treatment
4
Rx without testing
3
Rapid Strep Test
2
Rapid Strep Test
1
Do not test/treat
0
Do not test/treat
  • Likelihood of streptococcal pharyngitis in pts presenting with sore throat
    • 4 criteria = 50% PPV
    • 3 criteria = 40% PPV
    • 0 criteria - 80% NPV

Treatment Medications

  • Abx
    • Tx can be delayed for up to 9 days and still prevent major sequelae
    • Choices
      • Penicillin
        • 250mg BID x 10d (child) or 500mg BID x 10d (adolescent)
      • Bicillin
        • 25-50Kmg/kg IM x 1 (max dose = 1.2million)
      • Azithromycin (penicillin allergic)
        • 12mg/kg QD (child) or 500mg on day 1; then 250mg on days 2-5
  • Steroids
    • Single dose of dexamethasone shortens duration of pain

See Also

Source

  • Tintinalli
  • Rosen's