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on behalf of the J-RHYTHM Registry Investigators Background: Target anticoagulation levels for warfarin in Japanese patients with non-valvular atrial fibrillation (NVAF) are unclear.

Background The impact of psychosocial states, such as depression or anxiety, and social support on the outcomes of stable outpatients with mild heart failure (HF) has not been evaluated in the "real world" clinical practice. Methods and ResultsIn the present study, 139 patients with a prior history of admission for HF provided the baseline demographic, clinical, socio-environmental, and psychosocial information. Cardiac death or re-admission because of worsening of HF was monitored during the follow-up period of 1 year. The prevalence of depression and anxiety were 37% and 37%, respectively, in HF patients. Depression was independently associated with male (sβ=-0.36, P=0.01), social ties (sβ=0.22, P=0.04) and low social support (sβ=-0.39, P<0.01). Anxiety was associated with alcohol drinking (sβ=0.22, P=0.04), brain natriuretic peptide ≥200 pg/dl (sβ=0.35, P<0.01), and low social support (sβ=-0.28, P=0.01). Kaplan-Meier analysis demonstrated that patients with anxiety (log-lank test; P<0.01) and lower scores of social support (P<0.01) had a higher rate of HF-related re-admission. Conclusions Anxiety and low social support were independently associated with HF-related re-admission, which indicates the need for their inclusion in the assessment and management of HF. (Circ J 2009; 73: 280 -287)

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The pathophysiology of non-pulmonary vein (PV) triggers of atrial fibrillation (AF) is unclear. We hypothesized that left atrial non-PV (LANPV) triggers are associated with atrial tissue degeneration. This study analyzed 431 patients that underwent catheter ablation (mean age 62 yrs, 303 men, 255 paroxysmal AF [pAF] patients). Clinical and electrophysiological characteristics of non-PV trigger were analyzed. Fifty non-PV triggers in 40 patients (9.3%) were documented; LANPV triggers were the most prevalent (n = 19, 38%). LANPV triggers were correlated with non-paroxysmal AF (non-pAF) (OR 3.31, p = 0.04) whereas right atrial non-PV (RANPV) triggers (n = 14) and SVC triggers (n = 17) were not. The voltage at the LANPV sites during SR was 0.3 ± 0.16 mV (p < 0.001 vs. control site). Low-voltage areas (LVAs) in the LA were significantly greater in non-pAF compared to pAF (14.2% vs. 5.8%, p < 0.01). RANPV trigger sites had preserved voltage (0.74 ± 0.48 mV). Long-term outcomes of patients with non-PV triggers treated with tailored targeting strategies were not significantly inferior to those without non-PV triggers. In conclusion, non-PV triggers arise from the LA with degeneration, which may have an important role in AF persistence. A trigger-oriented, patient-tailored ablation strategy considering LA voltage map may be feasible and effective in persistent/recurrent AF.