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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 JAMA+Intern+Med
2017 ; 177
(10
): 1498-1505
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Association Between More Intensive vs Less Intensive Blood Pressure Lowering and
Risk of Mortality in Chronic Kidney Disease Stages 3 to 5: A Systematic Review
and Meta-analysis
#MMPMID28873137
Malhotra R
; Nguyen HA
; Benavente O
; Mete M
; Howard BV
; Mant J
; Odden MC
; Peralta CA
; Cheung AK
; Nadkarni GN
; Coleman RL
; Holman RR
; Zanchetti A
; Peters R
; Beckett N
; Staessen JA
; Ix JH
JAMA Intern Med
2017[Oct]; 177
(10
): 1498-1505
PMID28873137
show ga
IMPORTANCE: Trials in patients with hypertension have demonstrated that intensive
blood pressure (BP) lowering reduces the risk of cardiovascular disease and
all-cause mortality but may increase the risk of chronic kidney disease (CKD)
incidence and progression. Whether intensive BP lowering is associated with a
mortality benefit in patients with prevalent CKD remains unknown. OBJECTIVES: To
conduct a systematic review and meta-analysis of randomized clinical trials
(RCTs) to investigate if more intensive compared with less intensive BP control
is associated with reduced mortality risk in persons with CKD stages 3 to 5. DATA
SOURCES: Ovid MEDLINE, Cochrane Library, EMBASE, PubMed, Science Citation Index,
Google Scholar, and clinicaltrials.gov electronic databases. STUDY SELECTION: All
RCTs were included that compared 2 defined BP targets (either active BP treatment
vs placebo or no treatment, or intensive vs less intensive BP control) and
enrolled adults (?18 years) with CKD stages 3 to 5 (estimated glomerular
filtration rate <60 mL/min/1.73 m2) exclusively or that included a CKD subgroup
between January 1, 1950, and June 1, 2016. DATA EXTRACTION AND SYNTHESIS: Two of
us independently evaluated study quality and extracted characteristics and
mortality events among persons with CKD within the intervention phase for each
trial. When outcomes within the CKD group had not previously been published,
trial investigators were contacted to request data within the CKD subset of their
original trials. MAIN OUTCOME AND MEASURE: All-cause mortality during the active
treatment phase of each trial. RESULTS: This study identified 30 RCTs that
potentially met the inclusion criteria. The CKD subset mortality data were
extracted in 18 trials, among which there were 1293 deaths in 15?924 participants
with CKD. The mean (SD) baseline systolic BP (SBP) was 148 (16) mm Hg in both the
more intensive and less intensive arms. The mean SBP dropped by 16 mm Hg to 132
mm Hg in the more intensive arm and by 8 mm Hg to 140 mm Hg in the less intensive
arm. More intensive vs less intensive BP control resulted in 14.0% lower risk of
all-cause mortality (odds ratio, 0.86; 95% CI, 0.76-0.97; P?=?.01), a finding
that was without significant heterogeneity and appeared consistent across
multiple subgroups. CONCLUSIONS AND RELEVANCE: Randomization to more intensive BP
control is associated with lower mortality risk among trial participants with
hypertension and CKD. Further studies are required to define absolute BP targets
for maximal benefit and minimal harm.