Surgeon-Anesthesiologist Collaboration


Collaboration between the surgeon and the anesthesiologist is key for delivering a safe pheochromocytoma surgery. This study aims to establish the collective performance of surgeon-anesthesiologist team by quantifying the relationship between their previous collaborations and patient complications.

Full Title of Study: “Influence of Surgeon-anesthesiologist Collaboration on Patient Outcomes After Pheochromocytoma Surgery”

Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Retrospective
  • Study Primary Completion Date: December 2017


  • Procedure: Surgery complications
    • Assessment of the influence of surgeon-anesthesiologist collaboration on surgery complications during and up to 30 days after pheochromocytoma surgery.

Arms, Groups and Cohorts

  • Pheochromocytoma
    • Patient who underwent surgical procedure for pheochromocytoma

Clinical Trial Outcome Measures

Primary Measures

  • Presence of an intraoperative hemodynamic instability
    • Time Frame: At the time of surgery (less than 4 hours)
    • An intraoperative hemodynamic instability is defined as the occurrence of at least one intraoperative episode of systolic blood pressure ≥ 160 mmHg and at least one episode of mean blood pressure ≤ 60 mmHg

Participating in This Clinical Trial

Inclusion Criteria

  • All patients who underwent surgical procedure for pheochromocytoma in 8 French university hospitals from January 2000 to December 2016 Exclusion Criteria:

  • Age < 18 years old – Patients operated for incidentaloma or with paraganglioma diagnosis

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: N/A

Investigator Details

  • Lead Sponsor
    • Hospices Civils de Lyon
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Contact(s)
    • Jean-Christophe LIFANTE, MD, PhD, 04 78 56 90 95,

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