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Updated: Aug 23, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
Thromboembolic complications after inferior petrosal sinus sampling in patients with cushing's syndrome
L S Blevins1, R V Clark, D S Owens
1Division of Endocrinology and Diabetes, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6303, USA.
Insights
Inferior petrosal sinus sampling for Cushing's syndrome can lead to serious thromboembolic events, including fatal pulmonary embolism. Physicians should be aware of this risk during patient care.
Area of Science:
- Endocrinology
- Vascular Surgery
- Diagnostic Imaging
Background:
- Cushing's syndrome requires accurate diagnosis, often involving inferior petrosal sinus sampling (IPSS).
- Thromboembolic complications are a known risk of invasive procedures.
Purpose of the Study:
- To raise physician awareness of potential severe thromboembolic risks associated with IPSS in Cushing's syndrome patients.
- To highlight the occurrence of deep venous thrombosis (DVT) and pulmonary thromboembolism (PE) post-IPSS.
Main Methods:
- Retrospective review of medical records over 12 years.
- Identification of patients with Cushing's syndrome who experienced thromboembolic events after IPSS.
- Presentation of case reports for affected individuals.
Main Results:
- Two out of 34 patients with corticotropin-dependent Cushing's syndrome developed DVT after IPSS.
- One patient experienced a fatal outcome due to pulmonary thromboembolism.
Conclusions:
- IPSS in Cushing's syndrome patients carries a risk of serious and potentially fatal thromboembolic disorders.
- Further prospective studies are needed to establish the precise incidence of DVT following IPSS.
Objective:
To heighten the awareness of treating physicians of the potential for serious and fatal thromboembolic complications after inferior petrosal sinus sampling in patients with Cushing's syndrome.
Methods:
We retrospectively reviewed inpatient and outpatient medical records for a 12-year period to identify patients with Cushing's syndrome who had thromboembolic complications after inferior petrosal sinus sampling at a single institution. Case reports of affected patients are presented.
Results:
Of 34 patients with corticotropin-dependent Cushing's syndrome who underwent inferior petrosal sinus sampling, 2 had deep venous thrombosis. One of these patients succumbed to pulmonary thromboembolism.
Conclusion:
Serious and potentially fatal thromboembolic disorders may complicate inferior petrosal sinus sampling. Prospective studies should be undertaken to determine the true incidence of deep venous thrombosis after this procedure in patients with Cushing's syndrome.
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Venous Thrombosis III: Interprofessional Care