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2017 ; 6
(8
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Blood Pressure Response to Main Renal Artery and Combined Main Renal Artery Plus
Branch Renal Denervation in Patients With Resistant Hypertension
#MMPMID28862930
Fengler K
; Ewen S
; Höllriegel R
; Rommel KP
; Kulenthiran S
; Lauder L
; Cremers B
; Schuler G
; Linke A
; Böhm M
; Mahfoud F
; Lurz P
J Am Heart Assoc
2017[Aug]; 6
(8
): ä PMID28862930
show ga
BACKGROUND: Single-electrode ablation of the main renal artery for renal
sympathetic denervation showed mixed blood pressure (BP)-lowering effects.
Further improvement of the technique seems crucial to optimize effectiveness of
the procedure. Because sympathetic nerve fibers are closer to the lumen in the
distal part of the renal artery, treatment of the distal main artery and its
branches has been shown to reduce variability in treatment effects in preclinical
studies and a recent randomized trial. Whether this optimized technique improves
clinical outcomes remains uncertain. We report a 2-center experience of main
renal artery and combined main renal artery plus branches renal denervation in
patients with resistant hypertension using a multielectrode catheter. METHODS AND
RESULTS: Twenty-five patients with therapy-resistant hypertension underwent renal
sympathetic denervation with combined main renal artery and renal branch ablation
and were compared to matched controls undergoing an ablation of the main renal
artery only. BP change was assessed by ambulatory measurement at baseline and
after 3 months. At baseline, BP was balanced between the groups. After 3 months,
BP changed significantly in the combined ablation group (systolic/diastolic
24-hour mean and daytime mean BP -8.5±9.8/-7.0±10.7 and -9.4±9.8/-7.1±13.5 mm Hg,
P<0.001/0.003 and <0.001/0.016, respectively), but not in patients with main
artery treatment (-3.5±11.1/-2.0±7.6 and -2.8±10.9/-1.8±7.7 mm Hg, P=0.19/0.20
and 0.19/0.24, respectively). Systolic daytime BP was significantly more reduced
in patients with combined ablation than in patients with main artery ablation
(P=0.033). CONCLUSIONS: Combined ablation of the main renal artery and branches
appears to improve BP-lowering efficacy and should be further investigated.