The effects of baroreflex activation therapy on blood pressure and sympathetic function in patients with refractory hypertension: the rationale and design of the Nordic BAT study*

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift


Objective: To explore the effects of baroreflex activation therapy (BAT) on hypertension in patients with treatment resistant or refractory hypertension. Methods: This investigator-initiated randomized, double-blind, 1:1 parallel-design clinical trial will include 100 patients with refractory hypertension from 6 tertiary referral hypertension centers in the Nordic countries. A Barostim Neo System will be implanted and after 1 month patients will be randomized to either BAT for 16 months or continuous pharmacotherapy (BAT off) for 8 months followed by BAT for 8 months. A second randomization will take place after 16 months to BAT or BAT off for 3 months. Eligible patients have a daytime systolic ambulatory blood pressure (ABPM) of  ≥145 mm Hg, and/or a daytime diastolic ABPM of  ≥95 mm Hg after witnessed drug intake (including  ≥3 antihypertensive drugs, preferably including a diuretic). Results: The primary end point is the reduction in 24-hour systolic ABPM by BAT at 8 months, as compared to pharmacotherapy. Secondary and tertiary endpoints are effects of BAT on home and office blood pressures, measures of indices of cardiac and vascular structure and function during follow-up, and safety. Conclusions: This academic initiative will increase the understanding of mechanisms and role of BAT in the refractory hypertension.


  • The Nordic BAT Study Group
Enheter & grupper
Externa organisationer
  • University of Helsinki
  • Oslo university hospital
  • Göteborgs universitet
  • Skåne University Hospital
  • Karolinska Institute
  • Aarhus University Hospital
  • Helsinki University Central Hospital
  • Odense University Hospital

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Kardiologi


Sidor (från-till)294-302
Antal sidor9
TidskriftBlood Pressure
Utgåva nummer5
StatusPublished - 2017 jun 8
Peer review utfördJa