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Paradise Criteria for Tonsillectomy in Children

Trial-based eligibility criteria for tonsillectomy in children with recurrent throat infection.

Paradise Criteria for Tonsillectomy in Children
Frequency of throat-infection episodes
Choose the pattern that best matches the documented episode history.
Each qualifying episode had sore throat plus a documented sign
Temperature >38.3°C (101°F), cervical adenopathy (tender nodes or >2 cm), tonsillar/pharyngeal exudate, or a positive test for group A beta-hemolytic streptococcus, recorded by a clinician at the time of the episode.
Each proven or suspected streptococcal episode was treated with an antibiotic
Conventional dosage, for episodes proven or suspected to be group A beta-hemolytic streptococcal infection.
ResultDoes not meet Paradise criteria

Episode frequency does not reach any of the three qualifying patterns, so these trial-based criteria alone do not support tonsillectomy for recurrent throat infection.

Frequency criterion
Not met
Qualifying sign documented for each episode
No
Antibiotic treatment for each episode
No

When to use

  • Deciding whether a child with recurrent throat/tonsil infections meets the trial-validated frequency and documentation threshold for tonsillectomy.
  • Standardizing referral or surgical-planning discussions for recurrent pharyngitis/tonsillitis so that counted episodes are frequency-, sign-, and treatment-qualified.

Formula

Frequency criterion (any one pattern qualifies): >=7 episodes of throat infection in the preceding 1 year; OR >=5 episodes/year in each of the preceding 2 years; OR >=3 episodes/year in each of the preceding 3 years. Each counted episode must also be documented by a clinician as sore throat plus at least one of: temperature >38.3C (101F), cervical adenopathy (tender nodes or >2 cm), tonsillar/pharyngeal exudate, or a positive test for group A beta-hemolytic streptococcus; and, when the episode was proven or suspected to be streptococcal infection, treated with an antibiotic in conventional dosage. Criteria are met only when the frequency pattern, documentation, and treatment conditions are all satisfied.

Pearls and pitfalls

  • Derived from the entry criteria of randomized trials in severely affected (Paradise 1984) and moderately affected (Paradise 2002) children, not from an observational risk model, so it defines trial-proven candidacy rather than a probability score.
  • The 2019 AAO-HNS clinical practice guideline supports using Paradise-type frequency and documentation criteria to identify children most likely to benefit, while allowing individualized decisions for children who fall just short.
  • Does not itself weigh surgical risks (bleeding, anesthesia) or mimicking conditions such as PFAPA syndrome, which should also inform the final decision.

References

  1. Paradise JL, Bluestone CD, Bachman RZ, et al. Efficacy of tonsillectomy for recurrent throat infection in severely affected children. Results of parallel randomized and nonrandomized clinical trials. N Engl J Med. 1984;310(11):674-683.
  2. Paradise JL, Bluestone CD, Colborn DK, et al. Tonsillectomy and adenotonsillectomy for recurrent throat infection in moderately affected children. Pediatrics. 2002;110(1 Pt 1):7-15.
  3. Mitchell RB, Archer SM, Ishman SL, et al. Clinical Practice Guideline: Tonsillectomy in Children (Update). Otolaryngol Head Neck Surg. 2019;160(1_suppl):S1-S42.