eprintid: 10186730 rev_number: 6 eprint_status: archive userid: 699 dir: disk0/10/18/67/30 datestamp: 2024-02-07 16:25:06 lastmod: 2024-02-07 16:25:06 status_changed: 2024-02-07 16:25:06 type: article metadata_visibility: show sword_depositor: 699 creators_name: Wernig, F creators_name: Dunin-Borkowska, A creators_name: Frisiras, A creators_name: Khoo, B creators_name: Todd, J creators_name: Di Marco, A creators_name: Palazzo, FF creators_name: Barnes, SC creators_name: Tan, TM creators_name: Meeran, K creators_name: Alsafi, A title: Adrenal Vein Sampling: Does the Location of the Non-adrenal Venous Sample Matter? ispublished: pub divisions: UCL divisions: B02 divisions: C10 divisions: D17 divisions: G93 keywords: Adrenal, Adrenal vein sampling, Conn’s, Hypertension, Primary aldosteronism, Primary hyperaldosteronism note: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ abstract: Purpose: Adrenal vein sampling (AVS) is used to lateralise and differentiate unilateral from bilateral aldosterone production in primary aldosteronism. The adrenal venous samples are standardised to a peripheral or low inferior vena cava (IVC) sample and compared. It is unknown whether the location of the non-adrenal sample affects the results. This study compares AVS results standardised to the low IVC and right external iliac vein (REIV). Methods: Patients who underwent AVS between March 2021 and May 2023 were included. All procedures were undertaken by a single operator (AA). Demographic data and AVS results were collected from patients’ electronic records. Catheterisation success and lateralisation were assessed using both low IVC and REIV samples. Equivalence test was used to compare the cortisol and aldosterone levels. Results: Eighty-one patients, (M: F = 38:43), aged between 29 and 74 were included. Bilateral successful adrenal vein cannulation was achieved in 79/81 (97.5%) cases. The mean cortisol levels from the REIV were statistically equivalent although there was a small and not biologically significant difference from the low IVC (respective geometric means 183 nmol/l vs. 185 nmol/l, p = 0.015). This small difference in cortisol may be due to accessory adrenal venous drainage into the IVC. The aldosterone and aldosterone/cortisol ratios were statistically equivalent. There was no discordance in selectivity or lateralisation when the IVC or REIV measurements were used. Conclusion: The IVC and REIV samples may be used interchangeably during AVS. Graphical Abstract: [Figure not available: see fulltext.]. date: 2024-01-11 date_type: published publisher: Springer Science and Business Media LLC official_url: http://dx.doi.org/10.1007/s00270-023-03647-z oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2141480 doi: 10.1007/s00270-023-03647-z medium: Print-Electronic pii: 10.1007/s00270-023-03647-z lyricists_name: Khoo, Bernard lyricists_id: BKHOO30 actors_name: Kalinowski, Damian actors_id: DKALI47 actors_role: owner full_text_status: public publication: CardioVascular and Interventional Radiology volume: 47 pagerange: 194-199 event_location: United States citation: Wernig, F; Dunin-Borkowska, A; Frisiras, A; Khoo, B; Todd, J; Di Marco, A; Palazzo, FF; ... Alsafi, A; + view all <#> Wernig, F; Dunin-Borkowska, A; Frisiras, A; Khoo, B; Todd, J; Di Marco, A; Palazzo, FF; Barnes, SC; Tan, TM; Meeran, K; Alsafi, A; - view fewer <#> (2024) Adrenal Vein Sampling: Does the Location of the Non-adrenal Venous Sample Matter? CardioVascular and Interventional Radiology , 47 pp. 194-199. 10.1007/s00270-023-03647-z <https://doi.org/10.1007/s00270-023-03647-z>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10186730/1/Khoo_Adrenal%20Vein%20Sampling-%20Does%20the%20Location%20of%20the%20Non-adrenal%20Venous%20Sample%20Matter_VoR.pdf