Antihypertensive drug therapy and the risk of lower extremity amputations in pharmacologically treated type 2 diabetes patients

PURPOSE: The objective of this study was to determine the association between different antihypertensive drug therapies and lower extremity amputations (LEAs) in type 2 diabetes patients. METHODS: Data were obtained from the PHARMO Record Linkage System comprising pharmacy records and data on hospitalisations for all 450,000 residents of eight Dutch cities. In a nested case-control study among 12,140 type 2 diabetes patients who used antihypertensive drugs, 26 cases with a first LEA and 94 controls without a LEA matched on age, sex and calendar time were identified. Logistic regression was used to estimate the relative risk of LEA and to adjust for potential confounding factors. RESULTS: Among type 2 diabetes patients who used antihypertensive drugs, subjects who used thiazide diuretics, alone or in combination, had a higher risk of LEA compared to subjects who used Angiotensin Converting Enzyme (ACE) inhibitor monotherapy (crude odds ratio (OR): 6.11 [95% confidence interval (CI): 1.32-28.27]). The use of thiazide diuretics was also associated with an increased risk of LEA when compared to the use of any non-thiazide antihypertensive drug (adjusted OR: 7.04 [1.10-45.30]). The increased risk of LEA associated with the use of thiazides compared to the use of non-thiazides depended on the duration of use (adjusted OR(< or = 365 days), 4.82 [0.61-38.34] and adjusted OR(>365 days), 26.16 [1.02-674.02], p-trend = 0.01). CONCLUSIONS: Treatment with thiazide diuretics compared to treatment with other antihypertensive drugs was associated with excess amputations in type 2 diabetes patients. Due to several limitations of this study, our findings do not preclude the use of thiazides in type 2 diabetes mellitus patients as yet.     

Can renin status predict the antihypertensive efficacy of eplerenone add-on therapy?

Since neither angiotensin-converting enzyme inhibitors (ACE-I) nor angiotensin II receptor blockers (ARB) can completely suppress aldosterone levels, there is a need for alternative/supplementary antihypertensive medications, such as the selective aldosterone blocker eplerenone (Inspra). This multicenter study measured the safety and efficacy of add-on eplerenone therapy to reduce blood pressure not controlled by ACE-I or ARB monotherapy. An ad hoc analysis evaluated whether active plasma renin or serum aldosterone levels could predict blood pressure response to eplerenone therapy. Patients (N = 341) with a diastolic blood pressure > 95 mmHg on a fixed dose of ACE-I or ARB were randomized to 8 weeks of double-blind treatment with eplerenone 50 mg qd or placebo. If blood pressure remained uncontrolled following 2, 4, or 6 weeks of treatment, the eplerenone dose was increased to 100 mg qd. In a combined cohort analysis of these patients, the placebo-adjusted change in systolic and diastolic blood pressure was -5.9/-2.4 mmHg (p< 0.001 and p = 0.006, respectively). While adding eplerenone to an ACE-I or ARB is safe and effective for blood pressure reduction, there was no baseline value or range of values of active plasma renin, serum aldosterone, or their ratio that predicted a favorable response to either of these drug combinations.     

The Effect of Antihypertensive Agents on New-Onset Diabetes Mellitus

Recent large hypertension trials have shown great differences in incidence of new-onset diabetes mellitus among patients receiving different antihypertensive drug therapies. The incidence of diabetes is unchanged or increased by the use of thiazide diuretics and beta-adrenoceptor antagonists (beta-blockers) and unchanged or decreased by ACE inhibitors, calcium channel blockers (CCBs), and angiotensin II type 1 receptor antagonists (angiotensin receptor blockers). Recent results from ASCOT (Anglo-Scandinavian Cardiac Outcomes Trial) showed superiority of the 'new' combination of CCBs and ACE inhibitors over the 'old' or 'conventional' combination of beta-blockers and diuretics. In this review, the results from some of the large hypertension trials are discussed, and the hypotheses on how different antihypertensive drug regimens can affect glucose homeostasis are considered. The question now is whether the results from these recent trials should affect the choice of antihypertensive treatment, particularly for special groups. However, the key goal is still to reduce BP, and this usually requires combinations of drugs.     

The development of new-onset type 2 diabetes associated with choosing a calcium channel blocker compared to a diuretic or beta-blocker

ABSTRACT

Objective: It has been acknowledged that patients who receive a beta-blocker or diuretic based regimen are at increased risk of developing new-onset diabetes. Recently, angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) have been shown to decrease patients’ odds of developing new-onset type 2 diabetes. A number of large placebo-controlled multi-center trials in post-myocardial infarction and heart failure patients have shown the ability of renin-angiotensin-aldosterone system medications to reduce the onset of type 2 diabetes. Pharmacologic data has shown improved insulin sensitivity with ACEIs and ARBs. Controversy persists regarding the influence of calcium channel blockers on the development of new-onset diabetes.

Research design and methods: Two reviewers conducted a systematic literature search of Medline, EMBASE, CINAHL, and the Cochrane Library (1966 to December 2006) to extract a consensus of trial data involving calcium channel blockers versus diuretics or beta-blockers with an endpoint of new-onset type 2 diabetes. Studies were included if they were randomized controlled trials versus routine treatment, not observational studies of clinical practice. A random-effects model was utilized. Subgroup and sensitivity analyses were conducted.

Results: Out of 1721 trials, six meeting inclusion criteria were identified, including 99?006 patients. Calcium channel blockers were associated with a reduced incidence of new-onset type 2 diabetes (odds ratio 0.81; 95% confidence interval [CI] 0.73–0.90; p = 0.0001) compared with diuretic or beta-blocker therapy. The reduction in new-onset type 2 diabetes was maintained when a calcium channel blocker was compared to only thiazide diuretics (OR 0.86; 95% CI 0.75–0.99; p = 0.0346). The meta-analysis was limited by the varying definition of new-onset type 2 diabetes mellitus, as well as the potential for publication bias, which is a limit of any meta-analysis.

Conclusions: Calcium channel blockers may be associated with reduced odds of developing new-onset type 2 diabetes compared to diuretics and beta-blockers.     

Queen Mary Utilization of Antihypertensive Drugs Study: use of antihypertensive drug classes in the hypertension clinic 1996-2004

BACKGROUND: Utilization of antihypertensive drugs in the hypertension outpatient clinic is surveyed periodically in the Queen Mary Utilization of Antihypertensive Drugs Study (QUADS). METHODS: Two hundred and fifty-one patients (123 men, 128 women) were interviewed in April to December 1996, 439 patients (232 men, 207 women) in January to December 99 and 228 patients (109 men, 119 women) in April to May 2004. Their case notes were reviewed. RESULTS: The percentages of patients receiving no drug (lifestyle modification), one, two, three and over three drugs were 7%, 48%, 36%, 7%, 3%, respectively, in 1996; 14%, 34%, 36%, 13% and 1%, respectively, in 1999; and 3%, 30%, 40%, 22% and 6%, respectively, in 2004. The number of drugs correlated with age and overweight. In 1996, 51% patients received calcium channel blockers (CCB); 46% beta-blockers (BB); 32% angiotensin-converting enzyme inhibitors (ACEI); 15% thiazide diuretics; 5% alpha-blockers; and 0% angiotensin receptor blockers (ARB). In 1999, the respective figures were 52% CCB, 49% BB, 24% ACEI, 22% thiazide diuretics, 4%alpha-blockers and 2% ARB. In 2004, the respective figures were 65% CCB, 64% BB, 33% ACEI, 24% thiazide diuretics, 4% alpha-blockers and 7% ARB. Fewer patients on BBs reported side-effects. Only 11% were on alpha statin and 9% on aspirin. Blood pressure on treatment was 147 +/- 21/84 +/- 11 mmHg in 1999 and 144 +/- 21/82 +/- 11 mmHg in 2004. CONCLUSIONS: Increasingly, multiple drugs were used for blood pressure control. Blood pressure control needs improvement, especially in diabetics. CCBs and BBs were consistently popular. Thiazide diuretics, ARBs, statins and aspirin were underused, despite favourable clinical trial evidence.     

Effect of concomitant treatment with a CYP3A4 inhibitor and a calcium channel blocker

PURPOSE: Grapefruit juice has been found to interact with calcium channel blockers (CCB). This interaction is due to certain nutrients found in grapefruit juice that block the activity of cytochrome P-450 (CYP) 3A4 in the small intestine and liver. Inhibition of CYP3A4 markedly increases bioavailability and increases the risk of an adverse drug reaction (ADR). Many drugs are known to have CYP3A4-blocking activity. This study was performed to investigate whether the concomitant use of a CYP3A4 inhibitor and a CCB in hypertensive patients results in an elevated incidence of ADRs. METHODS: The study included data on 17,430 patients receiving a CCB. Data were obtained from an anti-hypertensive drug database developed by the RAD-AR Council, Japan. A nested case-control design was employed for this study. Cases are defined as patients experiencing an ADR during the follow-up period of 12 weeks. Four controls per case, matched for CCB use, were selected via incidence density sampling. An estimate of the association between the CYP3A4 inhibitor and the ADR was obtained via multivariate conditional logistic regression. RESULTS: Univariate analysis revealed that the odds ratio for experiencing an ADR for the group treated concomitantly with a CCB and a CYP3A4 inhibitor was 1.35 (95% confidence intervals (95%CI), 1.02-1.78), compared with CCB monotherapy. The odds ratio based on multivariate analysis using the 1:4 matched dataset was 1.53 (95%CI, 0.95-2.47) after adjusting for possible confounding factors. CONCLUSIONS: The concomitant treatment with a CYP3A4 inhibitor and a CCB increases the risk of an ADR by 53%, compared with CCB monotherapy.     

Valsartan/amlodipine single pill combination for the treatment of hypertension

Data from numerous hypertension intervention studies show that the majority of hypertensive patients, approximately two-thirds, need at least two antihypertensive agents to reach and to stay at their blood pressure goal. Furthermore, any chronic therapy has to be kept as simple as possible in order to improve long-term adherence to the prescribed therapy. Therefore, guidelines generally recommend providing combination therapy as single pill combinations. The single pill combination of valsartan and amlodipine is the first such combination available containing an angiotensin receptor blocker and a calcium channel blocker (CCB). It combines two agents that have been studied extensively in large morbidity and mortality end point trials. Available evidence demonstrates that the combination of valsartan plus amlodipine lowers blood pressure more effectively than the respective monotherapies. The combination of valsartan and amlodipine has to be viewed on the background of recent data from a large end point trial suggesting that blockade of the renin-angiotensin system plus a CCB may be more beneficial than the combination of a renin-angiotensin system blocker plus a thiazide diuretic. Finally, while angiotensin receptor blockers have been shown to exhibit placebo-like tolerability, dihydropyridine CCBs, such as amlodipine, are capable of exerting a dose-dependent swelling predominantly in the ankle regions of the lower extremities, known as vasodilatory edema. This side effect of amlodipine is reduced markedly with the coadministration of valsartan. In conclusion, the single pill combination of valsartan plus amlodipine represents an effective and tolerable treatment option for patients with the need for combination treatment.     

Valsartan/amlodipine single pill combination for the treatment of hypertension

Data from numerous hypertension intervention studies show that the majority of hypertensive patients, approximately two-thirds, need at least two antihypertensive agents to reach and to stay at their blood pressure goal. Furthermore, any chronic therapy has to be kept as simple as possible in order to improve long-term adherence to the prescribed therapy. Therefore, guidelines generally recommend providing combination therapy as single pill combinations. The single pill combination of valsartan and amlodipine is the first such combination available containing an angiotensin receptor blocker and a calcium channel blocker (CCB). It combines two agents that have been studied extensively in large morbidity and mortality end point trials. Available evidence demonstrates that the combination of valsartan plus amlodipine lowers blood pressure more effectively than the respective monotherapies. The combination of valsartan and amlodipine has to be viewed on the background of recent data from a large end point trial suggesting that blockade of the renin–angiotensin system plus a CCB may be more beneficial than the combination of a renin–angiotensin system blocker plus a thiazide diuretic. Finally, while angiotensin receptor blockers have been shown to exhibit placebo-like tolerability, dihydropyridine CCBs, such as amlodipine, are capable of exerting a dose-dependent swelling predominantly in the ankle regions of the lower extremities, known as vasodilatory edema. This side effect of amlodipine is reduced markedly with the coadministration of valsartan. In conclusion, the single pill combination of valsartan plus amlodipine represents an effective and tolerable treatment option for patients with the need for combination treatment.     

Initial non-compliance with antihypertensive monotherapy is followed by complete discontinuation of antihypertensive therapy

PURPOSE: Discontinuation with treatment is a major problem in the treatment of hypertension. The objective of our study was to assess the association between non-compliance and discontinuation in patients who started using antihypertensive monotherapy. METHODS: A nested case-control study within a cohort of new users of antihypertensive drugs between 1st January 1999 and 31st December 2002 was performed. We used data from the PHARMO database, a record linkage system containing drug-dispensing records from community pharmacies and linked hospital discharge records of approximately 950,000 subjects. Cases discontinued their use of antihypertensive monotherapy and were not switched to other antihypertensive treatment, controls stayed on their initially prescribed monotherapy. Conditional logistic regression was used to calculate odds ratios (OR) and their 95% confidence intervals (CI). RESULTS: In a cohort of 39,714 new users of antihypertensive drugs, we identified 9111 cases and 9111 matched controls. The percentage of non-compliant patients (compliance < 80%) among cases and controls was 14.0% and 5.8%, respectively [OR 2.86 (95%CI: 2.52-3.24)]. Patients who used less than 90 days had a higher risk on discontinuation [OR 3.10 (95%CI: 2.67-3.59)] than patients who used more than 90 days [OR 2.28 (95%CI: 1.79-2.92)]. The association was generally similar among males and females, among the different types of antihypertensives and among the different age groups. CONCLUSION: In patients who start antihypertensive monotherapy, non-compliance is often followed by discontinuation of this antihypertensive treatment. The pharmacy medication history is a valuable tool for physicians to identify patients who have a high risk on discontinuation with antihypertensive treatment.     

2010～2013年我院门诊口服抗高血压药物使用情况分析

目的：了解我院门诊2010～2013年口服抗高血压药物使用情况,分析其合理性。方法：统计分析我院门诊口服抗高血压药物单品种的用药频度、销售金额、所占比例等指标,并进行排序分析。结果：在2010～2013年,口服降压药年度销售总金额呈逐年递增趋势。每一年销售金额最高的是CCB,销售金额最低的是扩血管药。 CCB、ARB、ACEI类抗高血压药物的销售金额分别居前三位。2010～2011年DDDs排名前两位的是氨氯地平、替米沙坦,2010年和2011年DDDS排名第三的是硝苯地平,2012年和2013年DDDS排名第三位的是缬沙坦。DDDS排名前五位的是CCB、ARB、利尿剂、ACEI、β受体阻滞剂。结论：我院门诊口服抗高血压药物的销售基本稳定,使用合理,符合抗高血压药物的使用原则。     

Gallbladder disease in the general population: association with cardiovascular morbidity and therapy

PURPOSE: Both gallbladder (GB) and cardiovascular disease are very common diagnoses that carry substantial economic costs. Prior studies suggest that personal history of ischaemic heart disease (IHD) could determine the occurrence of GB disease. Additionally the use of thiazide diuretics may also be a risk factor for this condition. We aimed to evaluate different cardiovascular conditions and related drugs that could be associated with GB disease. METHODS: We identified all incident cases of gallbladder disease occurring during 1996 among patients aged 20-79 years old registered in the General Practitioner Research Database. We performed a nested case control analysis using 2353 cases and 10,000 controls frequency matched to the cases by age and sex. RESULTS: After adjusting for potential confounders IHD was associated with a small increased risk of GB disease (1.29, 95%CI:1.08-1.55). When only cases requiring cholecystectomy were considered in the analysis, the resulting estimate was 1.06 (95%CI:0.83-1.35). Users of thiazide diuretics presented an OR of 1.36 (95%CI:1.08-1.71). Other antihypertensive drugs were not associated with GB disease. CONCLUSIONS: Our results confirm the small increased risk of GB disease associated with thiazide diuretics. On the other hand, our data do not support a major association between IHD and GB disease.     

Improving treatment adherence to antihypertensive therapy: the role of single-pill combinations

INTRODUCTION: The majority of patients with hypertension require combination therapy to achieve their blood pressure (BP) goal. Studies have consistently shown that polypharmacy and complex treatment regimens have a detrimental effect on treatment compliance, adherence and persistence (herein referred to as treatment adherence). AREAS COVERED: This paper reviews the available clinical evidence, as well as guidelines, which propose combinations of an angiotensin II receptor blocker (ARB) or an angiotensin-converting enzyme (ACE) inhibitor plus a calcium channel blocker (CCB) or diuretic. EXPERT OPINION: ARBs are associated with better tolerability compared with ACE inhibitors, and data suggest that ARB/CCB combinations may be better tolerated than CCB monotherapy. The use of true once-daily single-pill combination therapy with effective and well-tolerated agents will reduce pill burden, simplify treatment regimens and improve treatment adherence, which will, in turn, help patients to reach and maintain their BP target and achieve the short- and long-term treatment goal of cardiovascular risk reduction.     

Antihypertensive treatment is associated with improved left ventricular geometry: the Rotterdam Study

PURPOSE: Left ventricular hypertrophy (LVH) increases the risk of cardiovascular disease. We evaluated the association between antihypertensive therapy and echocardiographically determined LVH. METHODS AND RESULTS: The Rotterdam Study is a population-based prospective cohort study among 7983 participants aged 55 years or over. Echocardiography was performed in 2823 participants. The study population consisted of 740 participants with grade 1 hypertension or antihypertensive monotherapy, without heart failure. Of these, 646 had an adequate echocardiogram for analysis of relative wall thickness (RWT) and 642 for left ventricular mass index. Participants were followed from 1 January 1991 until the date of echocardiography, between September 1992 and June 1993. Outcome measures were defined as being in the highest gender-specific quintile of left ventricular mass index and as having a RWT higher than 0.43. A Cox regression model with duration of use of antihypertensives defined as time-dependent covariates was used for data-analysis. Antihypertensive treatment lowered the risk of increased left ventricular mass index (RR 0.6, 95%CI 0.4-0.9). ACE-inhibitors, diuretics and beta-blockers all showed a risk reduction. Use of antihypertensives was also associated, although non-significantly, with a decrease of high RWT (RR 0.8, 95%CI 0.6-1.0). ACE-inhibitors, beta-blockers and calcium antagonists showed similar risk reductions, while diuretics seemed to increase the risk, possibly by reducing left ventricular end diastolic diameter. CONCLUSIONS: The use of antihypertensive drugs is associated with a decreased risk of echocardiographically determined LVH in a population-based setting.     

Angiotensin II Receptor Antagonists Alone and Combined with Hydrochlorothiazide

Angiotensin II receptor antagonists (angiotensin receptor blockers; ARBs) and thiazide diuretics have an accepted place in the management of hypertension. Most patients require combination therapy with two or more drugs to adequately control blood pressure to targets recommended by European and international guidelines. ARBs and the thiazide diuretic hydrochlorothiazide have complementary modes of action. Fixed-dose combinations of an ARB and low-dose hydrochlorothiazide provide a convenient and effective treatment option for patients who do not achieve blood pressure targets on monotherapy, without compromising the placebo-like tolerability of ARBs. In Europe, fixed-dose combinations with hydrochlorothiazide currently are available for the ARBs candesartan, eprosartan, irbesartan, losartan, telmisartan, and valsartan. Recently, a number of studies have focused on the use of ARBs in monotherapy and in combination therapy, in conditions including congestive heart failure, post-myocardial infarction management, hypertension with cardiovascular risk factors, and diabetic and non-diabetic nephropathy. Evidence from these studies suggests a beneficial role beyond the antihypertensive effect of these therapies in providing protection against cardiovascular, renovascular, and cerebrovascular events.     

Choice of antihypertensive treatment in subjects with pre-diabetes. Is there a dream after the navigator

The majority of individuals with pre-diabetic states eventually appear to develop diabetes mellitus. During the pre-diabetic state, that may last many years, the risk of cardiovascular disease is modestly increased, with impaired glucose tolerance being slightly stronger predictor for future cardiovascular disease than impaired fasting glucose. The role of different antihypertensive drugs in the acceleration or the delay of diabetes onset is controversial. Agents that interrupt the renin-angiotensin system, such as angiotensin converting enzyme inhibitors and angiotensin receptor blockers are likely to be beneficial in the prevention of diabetes, while calcium channel blockers are thought to act metabolically neutral. In contrast, diuretics or β-blockers, and especially their combination, are thought to increase the incidence of diabetes. Carvedilol, a non-selective β-blocker with α(1)-blocking properties, and nebivolol, a third-generation highly selective β(1)- blocker with additional endothelial nitric oxide (NO)-mediated vasodilator activity have been shown to have a favorable effect on glucose metabolism compared with others β-blockers. Nevertheless, the key goal still remains to reduce blood pressure, which may require combination of different antihypertensive drug classes. Changes from diuretics and β- blockers to renin-angiotensin system inhibitors certainly have cost implications. However, treatment with angiotensin converting enzyme inhibitors and angiotensin receptor blockers may be cheaper in the long run, due to less risk of new-onset diabetes and other metabolic disturbances. Thus, for patients with pre-diabetes it is wise to choose medications with the least diabetogenic potential and until more data are available, it seems prudent to restrict use of diuretics and classic β- blockers.     

Antihypertensive drugs and the risk of idiopathic aplastic anaemia

AIMS: A recent report has raised concern that nifedipine may be associated with an increased risk of aplastic anaemia. This large population-based study evaluated the risk of idiopathic aplastic anaemia in users of calcium channel blockers compared with that of other antihypertensive drugs. METHODS: The study was based on information derived from the General Practice Research Database. We conducted a follow-up study with a nested case-control analysis of 322 448 subjects who received antihypertensive drugs. Cases were people who had a first-time diagnosis of aplastic anaemia during January 1, 1988 through September 30, 1997. The risk estimate of aplastic anaemia was calculated for all antihypertensive drugs. For the nested case-control analysis, six controls were matched to each case on age, sex and general practice attended. Odds ratios compared the risk of idiopathic aplastic anaemia for all antihypertensive drugs relative to nonusers. RESULTS: There were 13 cases of newly diagnosed idiopathic aplastic anaemia. The estimated risk of aplastic anaemia per 100 000 users was 0.8 (95% CI 0.1, 4.7) for calcium channel blockers, 1.4 (95% CI 0.5, 4.1) for beta-adrenoceptor blockers, 2.3 (95% CI 0.6, 8.6) for angiotension-converting enzyme (ACE) inhibitors and 5.9 (95% CI 1.6, 21.5) for users of other antihypertensive drugs. In the case-control analysis of 13 cases and 77 controls, the odds ratio was 0.3 (95% CI 0.02, 3.3) for calcium channel blockers, 0.5 (95% CI 0.1, 2.5) for beta-adrenoceptor blockers, 0.7 (95% CI 0.1, 5.6) for ACE inhibitors, 1.2 (95% CI 0.1, 11.8) for users of other antihypertensive drugs and 0.7 (95% CI 0.1, 7.2) for users of multiple drugs with a calcium channel blocker compared with nonusers. CONCLUSIONS: The present study suggests that the use of calcium channel blockers is not associated with an increased risk of aplastic anaemia.     

抗结核药致中国人群药物性肝损伤危险因素的Meta分析

摘要：目的 系统评价中国人群使用抗结核药致药物性肝损伤的危险因素。方法 检索PubMed、Embase、Cochrane Library、中国期刊全文数据库(CNKI)、中国生物医学文献数据库(CBM)、万方数据库以及维普数据库(VIP)中建库至2019年10 月发表的有关中国人群使用抗结核药致药物性肝损伤的研究文献,2名研究员独立按照纳入与排除标准筛选文献、提取资料及 质量评价后,采用RevMan 5.3软件进行Meta分析。结果 共纳入12篇文献,均为中文文献,纳入8216例患者,共筛选出13种 暴露因素。Meta分析结果显示,嗜酒(OR=2.54,95%CI：1.97~3.27)、肝病史(OR=2.60,95%CI：2.19~3.08)、乙肝表面抗原携 带者(OR=3.15,95%CI：2.66~3.73)、糖尿病(OR=1.41,95%CI：1.18~1.70)、心功能不全(OR=1.72,95%CI：1.28~2.30)、贫血 (OR=4.61,95%CI：2.43~7.90)、营养不良(OR=2.48,95%CI：1.63~3.77)和结核病复治(OR=1.93,95%CI：1.43~2.60)是抗结核 药物致肝损伤的危险因素(P<0.05)。预防性予以保肝药能显著减少抗结核药致肝损伤的发生率(OR=0.36,95%CI：0.25~0.50, P<0.001)。结论 贫血、乙肝表面抗原携带者、合并其他肝病史、嗜酒、营养不良、结核病复治、心功能不全、糖尿病是我国 人群使用抗结核药致肝损伤的危险因素。对于有高危因素的患者予以保肝药能显著降低抗结核药致肝损伤的发生率。     

门诊抗高血压药物使用情况分析

目的分析我院目前抗高血压药物的使用情况,为临床更好地应用抗高血压药物提供参考。方法抽取门诊2006年4月-2009年4月132 588份处方,取出其中含抗高血压药物的处方36 756张进行分析。结果含抗高血压药物处方占总抽取处方的27.72%,钙离子拮抗剂的使用频率最高,其次是β受体阻滞剂。单联用药占总处方的49.17%,二联用药占总处方的26.93%,三联以上用药占总处方的23.90%。结论我院门诊抗高血压药的使用基本合理,药物合用总体符合阶梯式治疗原则。