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JACC Basic Transl Sci. 2016 Aug 29;1(5):313-324. doi: 10.1016/j.jacbts.2016.06.004. eCollection 2016 Aug.

Unilateral Carotid Body Resection in Resistant Hypertension: A Safety and Feasibility Trial.

JACC. Basic to translational science

Krzysztof Narkiewicz, Laura E K Ratcliffe, Emma C Hart, Linford J B Briant, Marzena Chrostowska, Jacek Wolf, Anna Szyndler, Dagmara Hering, Ana P Abdala, Nathan Manghat, Amy E Burchell, Claire Durant, Melvin D Lobo, Paul A Sobotka, Nikunj K Patel, James C Leiter, Zoar J Engelman, Angus K Nightingale, Julian F R Paton

Affiliations

  1. Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland.
  2. CardioNomics Research Group, Clinical Research & Imaging Centre, University of Bristol and University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom.
  3. CardioNomics Research Group, Clinical Research & Imaging Centre, University of Bristol and University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom; School of Physiology, Pharmacology & Neuroscience, Biomedical Sciences, University of Bristol, Bristol, United Kingdom.
  4. School of Physiology, Pharmacology & Neuroscience, Biomedical Sciences, University of Bristol, Bristol, United Kingdom.
  5. NIHR Barts Cardiovascular Biomedical Research Unit, William Harvey Research Institute, QMUL, Charterhouse Square, London, United Kingdom.
  6. Department of Internal Medicine, Division of Cardiovascular Diseases, The Ohio State University, Columbus, Ohio.
  7. Neurosurgery, North Bristol NHS Trust, Southmead Hospital, Bristol, United Kingdom.
  8. Department of Physiology and Neurobiology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire.
  9. Cibiem, Los Altos, California.

PMID: 27766316 PMCID: PMC5063532 DOI: 10.1016/j.jacbts.2016.06.004

Abstract

Animal and human data indicate pathological afferent signaling emanating from the carotid body that drives sympathetically mediated elevations in blood pressure in conditions of hypertension. This first-in-man, proof-of-principle study tested the safety and feasibility of unilateral carotid body resection in 15 patients with drug-resistant hypertension. The procedure proved to be safe and feasible. Overall, no change in blood pressure was found. However, 8 patients showed significant reductions in ambulatory blood pressure coinciding with decreases in sympathetic activity. The carotid body may be a novel target for treating an identifiable subpopulation of humans with hypertension.

Keywords: ABP, ambulatory blood pressure; ASBP, ambulatory systolic blood pressure; BRS, baroreceptor reflex sensitivity; CB, carotid body; HRV, heart rate variability; HVR, hypoxic ventilatory response; MSNA, muscle sympathetic nerve activity; OBP, office blood pressure; OSBP, office systolic blood pressure; afferent drive; baroreceptor reflex; hypertension; hypoxia; peripheral chemoreceptor; sympathetic nervous system; uCB, unilateral carotid body

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