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Operability assessment in CTEPH: Lessons from the CHEST-1 study.

David P Jenkins1, Andrzej Biederman2, Andrea M D'Armini3

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The Journal of Thoracic and Cardiovascular Surgery
|April 17, 2016
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Summary
This summary is machine-generated.

Pulmonary endarterectomy is the gold standard for chronic thromboembolic pulmonary hypertension (CTEPH). A rigorous re-evaluation of "inoperable" CTEPH patients identified a significant number suitable for surgery, improving treatment standards.

Keywords:
chronic thromboembolic pulmonary hypertensionoperability assessmentpulmonary endarterectomy

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Area of Science:

  • Cardiology
  • Pulmonary Medicine
  • Surgical Assessment

Background:

  • Pulmonary endarterectomy is the primary treatment for chronic thromboembolic pulmonary hypertension (CTEPH).
  • Patient selection for surgery can be challenging, potentially leading to suboptimal treatment for some.
  • Standardized operability assessment is crucial for effective CTEPH management.

Purpose of the Study:

  • To evaluate the impact of a unique operability assessment in patients initially deemed inoperable for pulmonary endarterectomy.
  • To determine the proportion of
  • inoperable
  • CTEPH patients who could be considered for surgery upon expert re-evaluation.
  • To establish new standards for operability assessment in future CTEPH clinical trials and practice.

Main Methods:

  • Patients screened for the CHEST-1 trial, initially considered inoperable for CTEPH, underwent central or local independent surgical adjudication.
  • Operability decisions were based on thrombi accessibility and the relationship between pulmonary vascular resistance (PVR) and obstruction extent.
  • Minimum diagnostic tests included pulmonary angiography/CT with V/Q scintigraphy.

Main Results:

  • Of 312 initially
  • inoperable
  • patients assessed, 69 were subsequently deemed operable after expert re-evaluation.
  • This rigorous assessment ensured that only technically inoperable patients or those with persistent/recurrent disease were enrolled in the CHEST-1 trial.

Conclusions:

  • A standardized, expert-led re-evaluation process can identify operable candidates among patients initially classified as inoperable for CTEPH.
  • This approach refines patient selection for pulmonary endarterectomy, potentially improving outcomes.
  • The CHEST-1 study's assessment methodology sets a benchmark for future CTEPH research and clinical practice.