洛沙坦与苯那普利对高血压大鼠左室肥厚的影响

目的探讨洛沙坦与苯那普利及联合治疗对自发性高血压大鼠(SHR)血压、左室肥厚的影响。方法24只16周龄的雄性SHR大鼠,随机分为洛沙坦(Los)治疗组(SHR-L),苯那普利(Ben)治疗组(SHR-B;),洛沙坦与苯那普利联合治疗组(SHR-BL)。治疗16周。年龄、性别配对的SHR和WKY大鼠作对照组。测定收缩压、左心室重量,计算心体比。结果Los降压作用大于Ben,Los与Ben逆转左室肥厚的作用相当。结论两药联合治疗对SHR大鼠有协同降压、逆转LVH的作用。     

缬沙坦与苯那普利逆转左室肥厚效应及耐受性安全性的比较

目的 比较缬沙坦和苯那普利治疗原发性高血压患者的耐受性安全性及左室肥厚逆转效应。方法 67例原发性高血压伴左室肥厚(LVH)患者随机分为缬沙坦组和苯那普利组，分别服用缬沙坦80～160mg／d，苯那普利10．20mg／d，治疗6个月后，观察降压疗效比较治疗前后超声心动图指标。结果 应用缬沙坦和苯那普利后均有显著的降压和逆转LVH效应。缬沙坦组具有良好的耐受性，未见干咳现象，苯那普利组干咳发生率8．5％。结论 缬沙坦治疗原发性高血压安全有效，逆转左室肥厚效应明显且耐受性好。     

洛沙坦与苯那普利对高血压大鼠左室肥厚的影响

目的 探讨洛沙坦与苯那普利及联合治疗对自发性高血压大鼠（ＳＨＲ）血压、左室肥厚的影响。方法 ２４只１６周龄的雄性ＳＨＲ大鼠，随机分为洛沙坦（Ｌｏｓ）治疗组（ＳＨＲ－Ｌ），苯那普利（Ｂｅｎ）、治疗组（ＳＨＲ－Ｂ；），洛沙坦与苯那普利联合治疗组（ＳＨＲ－ＢＬ）。治疗１６周。年龄、性别配对的ＳＨＲ和ＷＫＹ大鼠作对照组。测定收缩压、左心室重量，计算心体比。结果 Ｌｏｓ降压作用大于Ｂｅｎ、Ｌｏｓ、Ｂｅｎ逆转     

氯沙坦对老年高血压合并左室肥厚患者血压及室性心律失常的影响

目的：探讨氯沙坦对老年高血压左室肥厚（ＬＶＨ）患者血压及室性心律失常（ＶＡ）的疗效。方法：对４２例原发性高血压（ＥＨ）左室肥厚患者每日给予氯沙坦５０～１００ｍｇ,疗程２４周。于用药前后分别测定血压,进行超声心动图和Ｈｏｌｔｅｒ检查。结果：经氯化沙坦治疗２４周后室间隔厚度、左 后壁厚度、左室重量指数均较治疗前明显改善（Ｐ〈０．０１）。降压总有效率为７１．４％（３０／４２）。室性心律失常发生较前明显减     

氯沙坦与苯那普利联用对高血压胰岛素抵抗性和左室肥厚的影响

目的比较氯沙坦和苯那普利联用与苯那普利单用,对高血压胰岛素抵抗性和左室肥厚的影响。方法对61例高血压病左室肥厚患者随机分为氯沙坦与苯那普利联用组(31例)和苯那普利单用组(30例),经过6个月治疗后统计疗效。结果联用组与单用组比较,收缩压和舒张压降低、血清空腹胰岛素浓度降低和胰岛素敏感性指数升高、左室重量指数下降等差异均有显著意义(P<0.05),而空腹血糖、血钾、肌酐差异无显著性(P>0.05)。结论氯沙坦和苯那普利联用治疗高血压病左室肥厚可产生更有益的疗效,且安全和耐受良好。     

洛沙坦抗高血压及左室肥厚的疗效观察

目的 :观察血管紧张素 受体拮抗剂—洛沙坦的降压效果及对高血压病合并左室肥厚的影响。方法 :4 6例合并左室肥厚的 期高血压病患者服用洛沙坦 5 0 mg/ d,观察其血压的变化及治疗前和 6个月后左室质量 (L VM)。结果 :用洛沙坦后 4 d～ 6d血压开始下降 ,2周血压趋向正常 ,4周血压继续缓慢下降 ,6周时达到最大降压效果。 L VM在 12周时无明显变化。 2 4周表现轻度 L VM减少。结论 :洛沙坦是抗高血压的一个有效治疗药物 ,对左心室肥厚有轻度逆转作用     

倍他乐克治疗高血压左室肥厚44例观察

对符合高血压引起的左室肥厚的４４例患者口服倍他乐克１日５０ｍｇ～１００ｍｇ,疗程１２个月,观察疗效,并典卡托普利组（３９例）比较。结果：倍他乐克同卡托普利一样,具有逆转高血压引起左室肥厚和降低血压,改善心功能作用。表明倍他乐克对高血压引起的左以厚有逆转作用。     

26例高血压左室肥厚患者联合应用贝那普利及非洛地平治疗的临床分析

目的：分析联合应用贝那普利及非洛地平治疗高血压左室肥厚的临床效果。方法：选取我院收治的52名高血压左室肥厚患者作为研究对象,随机分为观察组与对照组各26例。对照组单纯采用贝那普利治疗,观察组应用贝那普利及非洛地平联合治疗,对两组患者的血压情况和左室重量指数进行分析对比。结果：两组患者的血压较治疗前均出现了明显下降（P〈0.05）;两组患者的左室重量指数较治疗前均出现了明显下降,且观察组下降情况较对照组明显（P〈0.05）。结论：联合应用贝那普利及非洛地平治疗高血压左室肥厚具有良好的临床效果,能有效改善左室肥厚逆转,值得在临床推广。     

卡托普利与苯那普利治疗高血压及逆转左室肥厚的临床研究

目的 探讨卡托普利与苯那普利治疗高血压及逆转左室肥厚的作用。方法 分别对３２例用卡托普利的高血压病人及３６例用苯那普利的高血压病人行６个月的治疗,观测血压及心脏超声指数,比较治疗前后指标的变化。结果 两组经治疗后均有血压下降及室间隔厚度、左室后壁厚度、左室心肌重量的缩小。结论 两种药均有逆转左室肥厚的作用。     

盐酸贝那普利治疗原发性高血压合并左室肥厚的临床效果分析

目的探讨盐酸贝那普利治疗原发性高血压合并左室肥厚的临床效果。方法选取2010年～2012年间于山东省淄博市淄川区中医院治疗的原发性高血压合并左室肥厚的71例患者为研究对象,采用盐酸贝那普利治疗。通过比较治疗前后的血压水平变化和超声心动图结果,评价患者的血压控制情况及左心室功能情况。结果经过6个月的系统治疗后,检测患者的血压水平和超声心动图结果并与治疗前比较发现,经过系统治疗后,所选患者的收缩压和舒张压水平均有明显降低,血压下降幅度明显;心动图显示舒张期室间隔厚度、左室后壁厚度、左室重量指数下降明显,而左室射血分数有较大的提高,以上比较差异明显,有统计学意义,P〈0.05。结论盐酸贝那普利治疗原发性高血压合并左室肥厚的临床效果显著,不仅可以有效的降低血压水平,维持血压稳定,并且对改善左心室功能,逆转左心室肥厚,都有重要意义。     

氯沙坦和贝那普利联合治疗对心衰患者左室舒张功能康复的临床疗效

目的：探讨氯沙坦和贝那普利联合用药对高血压性心衰患者左室舒张功能的临床疗效。方法：把91例高血压伴心功能不全患者随机分为治疗组（n=61）和对照组（n=30）。治疗组患者口服氯沙坦50～100mg／d＋贝那普利10mg／d＋地高辛0．125～0．25mg／d＋阿司匹林100mg／d＋氢氯噻嗪25mg／d或呋塞米20mg／d；对照组患者的治疗方案除无氯沙坦外，其余与治疗组相同。6个月为一个疗程。治疗前后检测患者的心脏舒张功能指标（E峰、A峰、E／A比值）。结果：治疗组患者治疗3个月后的左室舒张功能同治疗前比较具有极显著性差异，与对照组治疗后比较P〈0．05。对照组治疗3个月时上述指标无明显改变（P〉0．05）。临床疗效评定：治疗组患者心功能改善的总有效率为95．08％，对照组总有效率为66．67％，有极显著性差异（P〈0．01）。结论：氯沙坦和贝那普利联合用药可改善高血压伴心衰患者的左室舒张功能。     

依那普利和氯沙坦治疗中重度高血压的疗效观察

目的：评价依那普利和氯沙坦联用对中度重度高血压患者的降压效果和左心室肥厚的逆转作用。方法：对36例中重度高血压患者给予口服依那普利5－10mg/日和氯沙坦25－50mg/日,监测血压、心率及行超声心动图检查。结果：经治疗患者血压、心率明显下降,IVST、LVPWT和LVMI明显减少（P＜0．01）。结论：依那普利和氯沙坦联用能有效降低血压及逆转心室肥厚,且两药单独用量少,副作用少。     

Losartan

? Losartan binds selectively to the angiotensin II subtype 1 receptor, blocking the activity of angiotensin II. ? Losartan 50–100 mg/day was compared with atenolol 50–100 mg/ day in patients with essential hypertension and left ventricular hypertrophy (LVH) [n = 9193] in the randomized, double-blind Losartan Intervention For Endpoint reduction in hypertension (LIFE) study. Two substudies compared these drugs in patients with diabetes mellitus (n = 1195) or isolated systolic hypertension (ISH) [n = 1326]. ? The target BP (‘140/90mm Hg) was achieved in ≈45% of losartan and atenolol recipients in the LIFE study. Significant regression of LVH occurred with losartan versus atenolol in the LIFE study, as well as in the diabetes mellitus and ISH substudies. ? In the LIFE study, although BP reduction was similar for the two treatments, the risk of a cardiovascular event (the composite of cardiovascular death, stroke, and myocardial infarction; primary endpoint), stroke, or new-onset diabetes mellitus was significantly lower with losartan than with atenolol. ? Losartan was generally well tolerated in patients with hypertension and LVH in the LIFE study. Significantly fewer losartan than atenolol recipients discontinued treatment because of adverse events, drug-related adverse events, or serious, drug-related adverse events.     

A randomized,comparative study evaluating the efficacy and tolerability of losartan-low dose chlorthalidone (6.25 mg) combination with losartan-hydrochlorothiazide (12.5 mg) combination in Indian patients with mild-to-moderate essential hypertension

Objective: The relationship of blood pressure (BP) to cardiovascular risk is linear, positive, and continuous. Lowering elevated BP reduces the risk of cardiovascular events. The primary objective of this randomized, multicenter, comparative, 3-month, open-label study was to evaluate the antihypertensive efficacy of losartan/chlorthalidone versus losartan/hydrochlorothiazide in mild-to-moderate essential hypertension. Methods: A total of 137 eligible patients underwent a 2-week placebo washout period, following which 131 patients were randomized to losartan (L) 25mg/chlorthalidone (C) 6.25 mg (66/131) or to losartan 25 mg/hydrochlorothiazide (H) 12.5 mg (65/131) at three centers. Patients not responding after 4 weeks of therapy were escalated to losartan 25 mg/chlorthalidone 12.5 mg and losartan 50 mg/hydrochlorothiazide 12.5 mg, respectively. Results: Both treatment groups were similar with respect to demography and baseline characteristics. Altogether, 120 patients completed the study. After 4 weeks of therapy, both treatments showed a significant fall from baseline in systolic BP (SBP) and diastolic BP (DBP) (L/C: -20.17/-10.30; L/H: -17.63/-10.20). Both treatments were similar with respect to mean fall in SBP (p = 0.258), DBP (p = 0.934) and response rate (p = 0.769). Both step-up therapies were similar with respect to mean fall in SBP (p = 0.418), DBP (p = 0.389) from baseline and response rate (p = 0.769). All reported adverse events were of mild-to-moderate intensity, except for two serious AEs that occurred in patients who received L/H. Conclusions: The losartan/low-dose chlorthalidone (6.25 mg) combination is as effective as the widely used losartan/hydrochlorothiazide combination in lowering BP and is well tolerated, thus providing a useful therapeutic option for treating mild-to-moderate hypertension.     

科素亚、海捷亚的降压疗效对比及对尿酸的影响

目的本研究旨在对比评价海捷亚（氯沙坦钾/氢氯噻嗪）和科素亚（氯沙坦钾）治疗原发性高血压病的疗效及对尿酸的影响。方法60例原发性高血压合并高尿酸血症的门诊患者,被随机分入海捷亚组（氯沙坦钾/氢氯噻嗪）,或科素亚组（氯沙坦钾100mg）,每日服药一次。4周后观察血压、尿酸治疗前后的变化。结果两组血压均较药前显著下降。海捷亚有效率90%,较单纯科素亚组的80%高。科素亚组尿酸较治疗前明显下降,海捷亚治疗前后尿酸变化差异无显著性。结论氯沙坦钾片除了降压作用外,还有降尿酸作用。高血压合并高尿酸血症患者首选此药物。氯沙坦钾片和氢氯噻嗪联合使用治疗原发性高血压疗效比单用氯沙坦钾片好,可以作为社区门诊单一降压药控制不良的高血压患者首选。     

Angiotensin II antagonism and the heart: valsartan in left ventricular hypertrophy

Left ventricular hypertrophy (LVH) represents an independent risk factor for cardiovascular morbidity and mortality, and normalization of left ventricular mass has become a desirable goal of antihypertensive treatment. In a randomized, double-blind study, the angiotensin II (AT1-receptor) antagonist valsartan (Diovan ; 80-160 mg q.d.) was compared with the beta-blocker atenolol (50-100 mg q.d.) over 8 months in previously untreated patients with essential hypertension and LVH. Sixty-nine patients were randomized, of whom 58 were evaluated by echocardiography. After 8 months of treatment in the atenolol group [n = 8 with additional hydrochlorothiazide (HCTZ)], initial blood pressure was reduced from 160/103 to 147/92 mm Hg (p < 0.0001). In the valsartan group (n = 9 with HCTZ), blood pressure decreased from 163/101 to 146/90 mm Hg (p < 0.0001). Left ventricular mass index decreased from 127 to 117 g/m2 in the atenolol group and from 127 to 106 g/m2 in the valsartan group. Long-term treatment with valsartan resulted in a significant reduction of LVH in patients with essential hypertension.     

Effects of the long-term treatment with losartan and captopril and of the abrupt cessation on circadian blood pressure profile

The influence of a long-term treatment with losartan (50-100 mg o.d.) and captopril (25-50 mg b.i.d.) followed by the abrupt therapy cessation was studied in an open randomized placebo-controlled parallel group trial. The study was performed on a group of 22 essential (soft to moderate) hypertensive male patients, which entered the trial when a mean daytime diastolic blood pressure was BP > or = 90 Torr. The antihypertensive effect of losartan was more pronounced and homogeneous than the effect of an equivalent dose of captopril. The group-average trough/peak ratios upon the losartan treatment were 61.5 and 61.3% for the systolic and diastolic BP (against 21.2 and 26.9% for captopril), respectively. At the same time, the smoothness index values of the patients treated with losartan and captopril showed no significant difference. Neither treatment with any of the two drugs nor the therapy cessation affected the circadian BP profile or the BP variability. The abrupt termination of the drug administration did not cause a withdrawal syndrome: on the contrary, a significant effect of the captopril and losartan treatment (statistically reliable against the placebo control) persisted for at least four days after the therapy cessation. Taking into account poor homogeneity of the antihypertensive effect of captopril in patients with a stable moderate hypertension treated b.i.d., the drug administration is recommended according to the t.i.d. schedule. In this group of patients, losartan and captopril are probably more expediently administered in combination with other hypertensive drugs.     

氯沙坦对老年高血压者左室肥厚逆转及血浆内皮素水平的影响

目的 :了解氯沙坦对老年高血压性左室肥厚的逆转作用及对血浆内皮素 (ET)水平的影响。方法 :以 2 0例健康老年人为对照组 ,观察单纯高血压 32例 (EH组 )、高血压伴左室肥厚 2 6例 (LVH组 )在每日服氯沙坦 50mg前及 16wk后血压、ET的变化。用超声心动图观察LVH组在用药前后的左室舒张末期内径 (LVDd)、室间隔厚度 (IVST)、左室后壁厚度 (LVPWT)、左室重量 (LVM )、左室重量指数 (LVMI)的变化。结果 :经氯沙坦治疗后 ,EH组、LVH组的平均动脉压 (MAP)及ET水平有显著性下降 ;LVH组的ET水平与LVM ,LVMI呈正相关 ,LVH组在治疗后IVST ,LVPWT ,LVDd ,LVM ,LVMI亦有显著性下降。结论 :氯沙坦对老年高血压病人不仅有良好的降压效果 ,同时具有逆转LVH及降ET的作用     

氯沙坦与依那普利治疗高血压合并高尿酸血症各34例的比较

目的 :观察氯沙坦和依那普利对轻、中度原发性高血压合并高尿酸血症病人血尿酸代谢和降压疗效。方法 :6 8例轻、中度原发性高血压合并高尿酸血症病人分为 2组 ,氯沙坦组 34例 ,用氯沙坦 5 0mg ,po ,qd ,依那普利组 34例 ,用依那普利 10mg ,po ,qd ,均持续 4wk。结果 :wk 4末降压总有效率氯沙坦组 76 % ,依那普利组 79%。 2组疗效比较 ,P >0 .0 5。血尿酸水平在wk 4末氯沙坦组较治疗前下降 (12 5±s 4 0 ) μmol·L- 1,依那普利组下降(34± 38) μmol·L- 1,氯沙坦组和依那普利组降血尿酸总有效率为 74 %和 2 1% ,2组疗效比较 (P <0 .0 1)。结论 :氯沙坦不仅降压而且降低血尿酸水平。     

氯沙坦治疗原发性高血压病的疗效及对昼夜血压的影响

目的：评价氯沙坦（Losartan,Los）治疗高血压病的疗效及安全性。方法：90例原发性高血压病患者随机分为氯沙坦组和氯氯地平组各45例,分别给予氯沙坦50－100mg/d,po和氨氯地平5－10mg/d,po,疗程均为8wk,疗程结束前后行24小时动脉血压监测。结果：2组用药后24h动态血压监测指标均较用药前有显著下降（P＜0．01）,治疗后2组间各项指标差异无统计学意义（P＞0．05）。结论：氯沙坦50－100mg/d治疗轻、中度原发性高血压病疗效确切,耐受性好,其作用与氨氯地平相似。