Thyroid Ethanol Ablation of Thyroid Cysts: What is the Recurrence Rate and what is the results of retreatment with a second PEI or RFA session?

Thyroid Ethanol Ablation of Thyroid Cysts: What is the Recurrence Rate and what is the results of retreatment with a second PEI or RFA session?

Thyroid Ethanol Ablation of Thyroid Cysts: What is the Recurrence Rate and what is the results of retreatment with a second PEI or RFA session?

Thyroid Ethanol Ablation PEI of Thyroid Cysts: What is the Recurrence Rate and what is the results of retreatment with a second PEI or RFA session?

Key points about PEI recurrence and the causes are listed here.

  1. Ethanol ablation PEI showed unsatisfactory results in 18.7% of patient at one month.
  2. Delayed recurrence was observed in 24.1% of patients during the follow-up period.
  3. Total recurrence rate was 38.3% after PEI.
  4. Study results revealed that although PEI seemed to be effective in the initial period, delayed recurrence should be considered during the longer follow-up period.
  5. The independent predictors of recurrence were initial volume (>20 mL) and vascularity.
  6. Patients with recurrence (n = 41) were treated using radiofrequency ablation (n = 28), second PEI (n = 4), and refused further treatment (n = 9).
  7. These patients responded well to repeat PEI and RFA.
  8. The initial nodule volume (>20 ml; p < 0.036) and vascularity (grade >1; p < 0.049) were independent predictors of volume reduction at last follow-up.

Comments by Dr.Guttler

The recurrence rate means some patients need a second PEI session. This is less expensive than a new RFA session after the failed PEI. Both were able to complete the ablation.

Massive cyst required multiple PEI  sessions to complete ablation.

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Vascular nodules are also prone to have recurrence after one session PEI.

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Original article

Clinical Radiology Home

C H Suh at al

January 2015 Volume 70, Issue 1, Pages 42–47

http://dx.doi.org/10.1016/j.crad.2014.09.008

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