Responses of atrial natriuretic peptide and brain natriuretic peptide to exercise in patients with chronic heart failure and normal control subjects

Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) are known to be elevated in patients with chronic heart failure at rest. While it is known that during exercise the circulating level of ANP increases in patients with heart failure, the response of BNP to exercise in these patients relative to control subjects is unclear. Ten patients with stable chronic heart failure and 10 normal control subjects performed symptom-limited exercise with respired gas analysis. All patients had depressed left ventricular ejection fractions (LVEF). Patients had lower peak oxygen consumption P V ˙ O ₂) than the control group [median (range) 1.18 (0.98–1.76) vs. 1.94 (1.53–2.31) L min⁻¹; P  < 0.001]. Circulating plasma levels of ANP and BNP were higher at rest in patients than in control subjects [ANP 335 (140–700) vs. 90 (25–500) pg mL⁻¹; BNP 42 (25–50) vs. 20 (10–20) pg mL⁻¹], and at peak exercise [ANP 400 (200–1000) vs. 130 (10–590); BNP 46 (40–51) vs. 20 (10–30)]. The rise in ANP at peak exercise was significant in patients compared with the resting level, but not in control subjects. For BNP, there was a significant rise in patients but no change in control subjects. The circulating plasma levels of both peptides showed a strong negative correlation with LVEF (ANP, P  < 0.005; BNP, P  < 0.0001) and, to a less extent, with RVEF. It is possible that BNP may give a better indication of cardiac function.     

Abnormal rhythmic oscillations of atrial natriuretic peptide and brain natriuretic peptide in heart failure

The purpose of this study was to clarify whether the secretions of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) are pulsatile in patients with chronic heart failure (CHF), and whether the rhythmic oscillations for ANP and BNP are abnormal in patients with CHF. Several reports have shown that ANP and especially BNP are valuable indicators of the prognosis in CHF. Previously, a pulsatile secretion has been described for ANP and BNP in healthy humans and for ANP in CHF patients. More information about the secretion pattern of BNP in heart failure is necessary to increase the clinical usefulness of BNP in patients with CHF. Patients with left ventricular systolic dysfunction and CHF ( n =12) and controls ( n =12) were investigated. Plasma ANP and BNP levels were determined every 2 min during a 2-h period by radioimmunoassay and analysed for pulsatile behaviour by Fourier transformation. All patients and controls had significant rhythmic oscillations in plasma ANP levels, and 11 patients with CHF and 10 controls had significant rhythmic oscillations in plasma BNP levels. The amplitude of the main frequency was considerably higher in patients with CHF than in controls (ANP: CHF, 4.76 pmol/l; controls, 0.75 pmol/l; P <0.01. BNP: CHF, 3.24 pmol/l; controls, 0.23 pmol/l; P <0.001; all values are medians), but the main frequency did not differ significantly between the group with CHF and the control group for either ANP or BNP. Patients with CHF demonstrate pulsatile secretion of ANP and BNP with a much higher absolute amplitude, but with the same main frequency as healthy subjects.     

慢性心力衰竭患者血浆脑钠肽水平测定的临床意义

目的探讨血浆脑钠肽（BNP）对于判断慢性心力衰竭患者心功能状态的临床价值。方法采用免疫荧光法测定63例慢性心力衰竭患者的血浆BNP水平,并对其与NYHA心功能分级及左心室功能指标左室后壁厚度（LVPWT）、左室舒张末期内径（LVEDD）、左室收缩末期内径（LVESD）、左室射血分数（LVEF）等进行比较和相关性分析。结果慢性心衰患者的血浆BNP水平随着NYHA心功能分级升高而升高,并且血浆BNP水平与患者的LVEDD、LVESD呈正相关（r=0.76、0.71,P均〈0.05）,与LVEF呈负相关（r=0.66,P〈0.05）。结论血浆BNP水平能较好地反映慢性心衰患者的心功能状态,对于病情评估具有一定的临床价值。     

Homocysteine, brain natriuretic peptide and chronic heart failure: a critical review.

Chronic heart failure (CHF) is a major public health problem causing considerable morbidity and mortality. Recently, plasma homocysteine (HCY) has been suggested to be significantly increased in CHF patients. This article reviews the relation between hyperhomocysteinemia (HHCY) and CHF. Clinical data indicate that HHCY is associated with an increased incidence, as well as severity, of CHF. In addition, HCY correlates with brain natriuretic peptide (BNP), a modern biochemical marker of CHF, which is used for diagnosis, treatment guidance and risk assessment. Animal studies showed that experimental HHCY induces systolic and diastolic dysfunction, as well as an increased BNP expression. Moreover, hyperhomocysteinemic animals exhibit an adverse cardiac remodeling characterized by accumulation of interstitial and perivascular collagen. In vitro superfusion experiments with increasing concentrations of HCY in the superfusion medium stimulated myocardial BNP release independent from myocardial wall stress. Thus, clinical and experimental data underline a correlation between HHCY and BNP supporting the role of HHCY as a causal factor for CHF. The mechanisms leading from an elevated HCY level to reduced pump function and adverse cardiac remodeling are a matter of speculation. Existing data indicate that direct effects of HCY on the myocardium, as well as nitric oxide independent vascular effects, are involved. Preliminary data from small intervention trials have initiated the speculation that HCY lowering therapy by micronutrients may improve clinical as well as laboratory markers of CHF. In conclusion, HHCY might be a potential etiological factor in CHF. Future studies need to explore the pathomechanisms of HHCY in CHF. Moreover, larger intervention trials are needed to clarify whether modification of plasma HCY by B-vitamin supplementation improves the clinical outcome in CHF patients.     

Abnormal rhythmic oscillations of atrial natriuretic peptide and brain natriuretic peptide in chronic renal failure

Secretion of ANP (atrial natriuretic peptide) and BNP (brain natriuretic peptide) is pulsatile in healthy humans. However, the patterns of secretion of ANP and BNP have not been studied in chronic renal failure. The aim of the present study was to test the hypotheses that ANP and BNP are secreted in pulses in dialysis patients, and that pulsatile secretion is regulated by prostaglandins. Blood samples were drawn every 2 min through an intravenously inserted plastic needle over a period of 1-2 h in 13 dialysis patients and 13 healthy control subjects (Study 1), and in 15 healthy control subjects, who participated in a randomized placebo-controlled cross-over study after treatment with indomethacin and placebo (Study 2). Plasma concentrations of ANP and BNP were determined by RIAs, and the results were analysed for pulsatile behaviour by Fourier transformation. The results from Study 1 showed that the secretion of ANP and BNP was pulsatile in nine patients with chronic renal failure. The maximum amplitude was significantly higher in chronic renal failure compared with control subjects for both ANP and BNP (ANP, 4.3 compared with 0.7 pmol/l; BNP, 2.0 compared with 0.3 pmol/l; values are medians) and correlated positively with the mean plasma level of ANP (rho=0.900, P=0.001; n=9) and BNP (rho=0.983, P=0.000; n=9). The frequency was the same for patients and controls. The results from Study 2 demonstrated pulsatile secretion in all subjects, but both the amplitude and frequency were unaffected by indomethacin. The maximum amplitude correlated positively with the mean plasma level of ANP and BNP during both placebo and indomethacin treatment. It can be concluded that the secretion of ANP and BNP is pulsatile with abnormally high amplitude in chronic renal failure, that prostaglandins apparently are not involved in the secretion of these peptides in healthy subjects and that the high secretion rate in chronic renal failure results in higher ANP and BNP in plasma.     

Elevation of plasma atrial natriuretic peptide in rats with chronic heart failure by SCH 39370, a neutral metalloendopeptidase inhibitor

Hormonal, renal and blood pressure effects of SCH 39370, a selective inhibitor of neutral metalloendopeptidase (endopeptidase 24.11, NEP), were studied in a chronic, congestive heart failure (CHF) model produced by coronary artery ligation in the rat. Sham-operated control rats and rats with CHF were treated either with vehicle or SCH 39370, 30 mg/kg s.c. b.i.d. for 2.5 days. Plasma levels of atrial natriuretic peptide (ANP) and urinary excretion of cyclic GMP (cGMP) were clearly raised in rats with CHF as compared with controls during vehicle treatment. SCH 39370 caused a further increase in plasma ANP in CHF rats but not in control rats. Urinary excretion of immunoreactive ANP and cGMP increased during SCH 39370 treatment both in CHF rats and in controls. SCH 39370 treatment resulted in an initial increase in urine volume in rats with CHF whereas urine sodium excretion did not change significantly. No changes in renal function due to SCH 39370 treatment were seen in control rats. Systolic blood pressure, plasma renin activity and urine excretion of catecholamine metabolites (4-hydroxy-3-methoxyphenyl acetic acid and metanephrines) did not change during SCH 39370 treatment either in controls or in CHF rats. We conclude that the NEP-inhibitory compound SCH 39370 is capable of increasing plasma ANP concentration and urinary excretion of cGMP in rats with chronic CHF. In this severe heart failure model, the possible beneficial effects of additional ANP increments may be blunted, however. NEP inhibitors offer a novel approach to study the significance of ANP elevation in chronic CHF.     

Prognostic value of cardiac troponin T in patients with both acute and chronic stable congestive heart failure: comparison with atrial natriuretic peptide, brain natriuretic peptide and plasma norepinephrine

BACKGROUND: The prognostic value of cardiac troponin T (cTn-T) in a mixture of patients with both acute and chronic congestive heart failure (CHF), simultaneously assessed and compared with neurohormonal factors, has not yet been thoroughly evaluated. Thus, we focused on the prognostic value of cTn-T in comparison with atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and plasma norepinephrine (PNE) in this population. METHODS: Prognostic correlates of elevation of cTn-T, ANP, BNP, PNE were analyzed in 63 acute and chronic CHF patients followed up to record worsening CHF and cardiac death. RESULTS: cTn-T (> or =0.03 microg/L) was found in 17.4% (11 of 63) of patients. cTn-T correlated with ANP, BNP, PNE. Acute CHF patients were more positive for cTn-T and BNP. In our cohort, neither cTn-T (> or =0.03 microg/L) nor PNE were associated with increased mortality and worsening HF in CHF patients. After adjustment, BNP was the only independent predictor of cardiac events (RR, 3.23; p=0.01). CONCLUSIONS: BNP emerged as the only independent predictor of cardiac events in a mixture of patients with both acute and chronic CHF, suggesting that it is the analyte that best reflects long-term prognosis in a diverse population enrolled to mirror the "real world" situation.     

Clearance of human brain natriuretic peptide in rabbits; effect of the kidney, the natriuretic peptide clearance receptor, and peptidase activity

Although the synthetic version of the cardiac peptide human brain natriuretic peptide (hBNP) has demonstrated beneficial cardiovascular effects in clinical studies, little is known about mechanisms governing its elimination from the blood. This study measured the role of the kidney, the natriuretic peptide clearance (NP-C) receptor, and peptidase digestion on the elimination of synthetic hBNP from the plasma compartment of rabbits. The estimated plasma steady state resulting from a continuous i.v. infusion was achieved within 50 min and was related in a linear manner with the infusion rate of the drug. Complete restriction of kidney blood flow by bilateral suture-ligation of the renal arteries compared with sham-treated animals reduced the clearance of hBNP by approximately half (24 +/- 9 ml/min versus 47 +/- 14 ml/min, respectively, p <. 007). Pharmacological blockade of the NP-C receptor with a clearance receptor-specific analog of atrial natriuretic peptide increased in a statistically significant and dose-related manner the plasma steady-state level of hBNP during continuous i.v. infusion of hBNP (maximum effect of 1.9 +/- 0.3-fold, p <.01). The peptidase inhibitor phosphoramidon increased in a dose-related manner the plasma steady-state level of hBNP 1.7 +/- 0.4-fold during continuous i.v. infusion of hBNP in rabbits. These data suggest that the kidney, the NP-C receptor, and peptidases are all important in the elimination of hBNP from the plasma compartment.     

Brain natriuretic peptide as a novel cardiac hormone in humans. Evidence for an exquisite dual natriuretic peptide system, atrial natriuretic peptide and brain natriuretic peptide.

Using a specific radioimmunoassay for human brain natriuretic peptide (hBNP) with a monoclonal antibody, we have investigated its synthesis, secretion, and clearance in comparison with those of atrial natriuretic peptide (ANP) in normal subjects and patients with congestive heart failure (CHF). Mean BNP-like immunoreactivity (-LI) levels in normal atrium and ventricle were 250 and 18 pmol/g, respectively. The plasma BNP-LI level in normal subjects was 0.90 +/- 0.07 fmol/ml, which was 16% of the ANP-LI level. In contrast, the plasma BNP-LI level markedly increased in patients with CHF in proportion to its severity, and surpassed the ANP-LI level in severe cases. There was a significant step-up of the plasma BNP-LI level in the coronary sinus (CS) compared with that in the aortic root (Ao) and the difference between these BNP-LI levels, delta(CS-Ao)BNP, also increased with the severity of CHF. In addition, the step-up of the BNP-LI level in the anterior interventricular vein [delta(AIV-Ao)BNP] was comparable to delta(CS-Ao)BNP, indicating that BNP is secreted mainly from the ventricle. Predominant BNP synthesis in the ventricle was also confirmed by Northern blot analysis. Catheterization and pharmacokinetic studies revealed that hBNP is cleared from the circulation more slowly than alpha-hANP; this was in part attributed to lower (about 7%) binding affinity of hBNP to clearance receptors than that of alpha-hANP. A predominant molecular form of BNP-LI in the heart and plasma was a 3-kD form corresponding to hBNP. These results indicate that BNP is a novel cardiac hormone secreted predominantly from the ventricle, and that the synthesis, secretion and clearance of BNP differ from those of ANP, suggesting discrete physiological and pathophysiological roles of BNP in a dual natriuretic peptide system.     

N末端B型钠尿肽原对充血性心力衰竭患者预后及危险分层评价的价值

目的通过对充血性心力衰竭（CHF，心衰）患者的随访研究，探寻影响心衰预后的因素，并对N末端B型钠尿肽原（NT-proBNP）对CHF患者预后及危险分层价值进行评价。方法对我院明确诊断为CHF的97例住院患者，测定入院时血清NT-proBNP、心肌肌钙蛋白T（cTnT）、心肌肌钙蛋白I（cTnI）、肌酸激酶MB型同工酶（CK-MB）以及纽约心脏病协会心功能分级（NYHA分级）和左室射血分数（LVEF）等指标。随访观察患者心脏事件的再发生。结果97例心衰患者，中位随访423d（43～505d），发生心脏事件23例（23．7％）。发生终点事件组与未发生终点事件组相比，患者的年龄（83比73，P=0．000）、NYHA分级（3比2，P=0．002）、NT-proBNP（973pg／ml比212．35pg／ml，P=0．002）、cTnT（0比0，P=0．011）以及cTnI（0．04比0．02，P=0．038）中位数水平均明显偏高。Cox比例风险模型分析显示，在包括了年龄、NYHA分级、LVEF、LogNT-proBNP、cTnT、cTnI及CK．MB等指标后，只有年龄和NT-proBNP是独立的心脏事件再发生的预后因素，OR分别为1．17和（95％CI：1．09～1．24，P〈0．1301）和3．17（95％CI：1．76～5．69，P〈0．001）。以NT-proBNP中位数水平302．1pg／ml对心衰患者进行危险分层，NT-proBNP〉302．1pg／ml的心衰患者，其心衰后心脏事件再发生的风险是NT-proBNP≤302．1pg／ml患者的4．63倍（95％CI：1．80～9．46，P=0．0008）。年龄〉74岁的心衰患者，其心脏事件再发生的风险是年龄≤74岁的心衰患者的5．40倍（95％CI：2．16～11．52，P=0．0002）。其他NYHA分级、LVEF、cTnT、cTnI及CK-MB等指标对心衰后心脏事件再发生均没有预后价值。结论NT-proBNP可以用于对心衰患者进行心衰后心脏事件再发生的预后分析及危险分层评估。     

脑钠肽在心力衰竭中的研究进展

心衰致的死亡率在我国呈逐年上升趋势,在短时间内对心衰患者作出正确的诊断十分重要。B型钠尿肽（BNP）是一种由心室肌细胞分泌的能够反映心脏功能的激素类物质。BNP在心衰患者血清中有显著的升高。     

重组人脑利钠肽治疗急性心力衰竭疗效观察

目的：探讨冻干重组人脑利钠肽(recombinant human brain natriuretic peptide,rh-BNP)治疗急性心力衰竭的早期疗效和安全性。方法：40例急性心力衰竭患者在常规治疗基础上随机分为2组,A组20例以rh-BNP 1.5μg/kg静脉冲击治疗后,0.007 5 μg/(kg·min)连续静脉滴注;B组20例静脉滴注异舒吉或硝普钠。记录并比较2组治疗前及给药后30 min和24,72 h患者呼吸困难程度、临床症状改善情况以及用药后24 h液体入量与尿量的变化;比较2组治疗前及用药后72 h左心室射血分数及左心室舒张末内径、治疗前及治疗后5～7 d血浆N-末端脑钠素水平,并进行安全性评估。结果：治疗24,72 h后A组呼吸困难和临床状况好转率优于B组(P＜0.05);用药24 h后A组尿量明显多于B组(P＜0.05),患者血浆N-末端脑钠肽前体水平明显降低(P＜0.05)。2组治疗后左心室射血分数及左心室舒张末内径比较差异无统计学意义(P＞0.05)。结论：与其他扩血管药物相比,rh-BNP能更好改善心力衰竭患者的心功能。     

慢性心力衰竭患者血浆肾上腺升压素和心钠素的变化

目的 观察慢性充血性心力衰竭(CHF)患者血浆肾上腺升压素(ADT)和心钠素(ANP)的变化,以探讨CHF发生发展的病理生理机制.方法 采用特异性放射免疫法检测了45例CHF患者治疗前后和20例正常人ADT和ANP的血浆浓度.结果 治疗前,ADT血浆浓度在心功能Ⅱ级为(29.98±3.56)ng/L、Ⅲ级为(33.45±3.54)ng/L,Ⅳ级为(20.71±3.37)ng/L,心功能Ⅲ级时达到高峰,心功能Ⅳ级时明显下降,并且低于正常对照组(24.89±2.19)ng/L,心力衰竭各亚组与正常对照组比较,差异均有统计学意义(均P＜0.05);经1周药物治疗后,心力衰竭各亚组患者血浆ADT含量下降.治疗前ANP血浆含量在心力衰竭各亚组较对照组明显升高(P＜0.05),心力衰竭各亚组间比较差异亦有统计学意义(均P＜0.05);治疗后,心力衰竭各亚组均下降,Ⅳ级组与治疗前相比差异有统计学意义(P＜0.05),余两组差异无统计学意义(P＞0.05).治疗前ADT和ANP在Ⅱ级组和Ⅳ级组无相关关系,Ⅲ级组有负相关关系(r=-0.46,P=0.04).结论 ADT和ANP共同参与了心力衰竭的病理进程,表明缩血管和舒血管活性肽分子间平衡被打破,反映了心力衰竭的严重程度;短期药物治疗可降低其血浆水平.     

The role of brain natriuretic peptide in systolic heart failure.

Heart failure (HF) is a progressive multisystem disease that involves neurohormonal activation, dysfunction of cardiac and skeletal musculature, and a host of other pathological changes. The neurohormonal activation in HF triggers the release of the natriuretic peptides. One peptide of particular interest is brain natriuretic peptide (BNP). It is primarily released by the ventricles of the heart and has adaptive function in counteracting the effects of neurohormonal activation in patients with HF. The focus of this article is the discussion of the physiology of BNP as well as its role in systolic HF, although it also plays a role in diastolic HF.     

雷米普利对充血性心力衰竭患者脑钠肽水平的影响

目的 探讨充血性心力衰竭(CHF)患者血浆脑钠肽(BNP)水平的变化及雷米普利的干预作用.方法 89例CHF患者给予雷米普利2.5 mg/d,1周后增加至5～10 mg/d,疗程4周,检测用药前后血浆BNP含量的变化.同时选择30例健康体检者为对照组. 结果 CHF患者血浆BNP水平(492±316) pg/ml,较对照组(25±8) pg/ml明显增高(P<0.01),CHF组BNP水平升高与心力衰竭程度呈正相关,依次为Ⅳ级>Ⅲ级>Ⅱ级(r=0.753,P<0.01).雷米普利治疗后血浆BNP水平明显降低,与治疗前比较差异有统计学意义(P<0.01).结论 心力衰竭时血浆BNP水平明显增高,而雷米普利具有改善心脏功能的作用.     

Plasma concentrations and comparisons of brain natriuretic peptide and atrial natriuretic peptide in normal subjects, cardiac transplant recipients and patients with dialysis-independent or dialysis-dependent chronic renal failure.

1. We have developed a radioimmunoassay for the measurement of immunoreactive brain natriuretic peptide (1-32) in human plasma. Simultaneous measurements of atrial natriuretic peptide have also been carried out to allow for direct comparison between circulating brain natriuretic peptide and atrial natriuretic peptide. Plasma levels of immunoreactive brain natriuretic peptide (means +/- SEM) were 1.1 +/- 0.1 pmol/l in 36 normal healthy subjects and were significantly elevated in cardiac transplant recipients (18.8 +/- 3.9 pmol/l, n = 12) and in patients with dialysis-independent (8.8 +/- 1.5 pmol/l, n = 11) or dialysis-dependent (41.6 +/- 8.8 pmol/l, n = 14) chronic renal failure. Similarly, in these groups of patients plasma levels of atrial natriuretic peptide were also significantly raised when compared with those in the group of normal healthy subjects. 2. The plasma level of atrial natriuretic peptide was significantly higher than that of brain natriuretic peptide in normal subjects and in patients with dialysis-independent chronic renal failure, with ratios (atrial natriuretic peptide/brain natriuretic peptide) of 2.8 +/- 0.2 and 2.2 +/- 0.3, respectively. However, in both cardiac transplant recipients and patients on dialysis plasma levels of atrial natriuretic peptide and brain natriuretic peptide were similar, with ratios of 1.3 +/- 0.2 and 1.0 +/- 0.1, respectively, in these two groups. 3. Plasma levels of brain natriuretic peptide and atrial natriuretic peptide were significantly correlated in the healthy subjects and within each group of patients. When all groups were taken together, there was an overall correlation of 0.90 (P < 0.001, n = 73).(ABSTRACT TRUNCATED AT 250 WORDS)     

Assessment of brain natriuretic peptide in patients with suspected heart failure: comparison with radionuclide ventriculography data

BACKGROUND: The aim of the study was to prospectively evaluate patients with suspected or known heart disease using plasma brain natriuretic peptide (BNP) measurement and radionuclide ventriculography to examine whether left ventricular dysfunction is associated with an abnormal rise of BNP concentration. METHODS: Patients (n=153) and controls (n=14) underwent radionuclide ventriculography to determine Left ventricular Ejection Fraction (LVEF) and measurement of plasma BNP concentration using a commercial kit. RESULTS: Plasma BNP concentration in controls was significantly lower than that in patients whatever the stage of the disease, significantly lower than that of patients with normal LVEF (LVEF>55%); than that of patients with altered LVEF (LVEF< or =40%); and than that of patients with moderately reduced LVEF (40%相似文献   

血清脑钠肽水平与老年慢性心力衰竭患者心功能的相关性

目的探讨血清脑钠肽(BNP)和超声心动图在评估慢性心力衰竭(CHF)患者心功能中的临床价值。方法选择120例CHF患者为观察组,同期体检的健康人群120例作为对照组,比较不同心功能分级比较超声心电图参数及BNP水平、左心射血分数(LVEF)和左心室舒张末期内径(LVEDD)。并按照心功能分级和BNP是否正常进行分组,分析血清BNP和超声心动图与心功能分级相关性,评价血清BNP和超声心动图在评估CHF心功能分级中的价值。结果观察组的血清BNP、LVEDD水平均高于对照组,LVEF低于对照组,差异有统计学意义(P0.05)。按照心力衰竭级别分组,各组间的BNP水平不同,且任意两组间的BNP有统计学差异,随着心力衰竭级别的增加,BNP逐渐增加(P0.05);随着心力衰竭级别的增加,LVEF逐渐降低(P0.05);各组间的LVEDD不同,且心力衰竭Ⅲ级与Ⅰ级、Ⅳ级与Ⅰ级、Ⅳ级与Ⅱ级间差异有统计学意义(P0.05);随着心力衰竭级别的增加,BNP水平逐渐增加(P0.05)但LVEF水平逐渐降低(P0.05);各组间的LVEDD不同,且心力衰竭Ⅲ级与Ⅰ级、Ⅳ级与Ⅰ级、Ⅳ级与Ⅱ级间差异有统计学意义(P0.05)。血清BNP与LVEF呈负相关,但与LVEDD呈正相关(P0.05);BNP升高组患者的年平均住院次数、住院时间均高于对照组,差异有统计学意义(P0.05)。结论血清BNP和LVEF、LVEDD参数一起用于CHF患者心功能评估,可提高评估准确性,为病情评估、临床治疗提供理论指导依据。