Inhibitor Use (inhibitor + use)

Distribution by Scientific Domains
Distribution within Medical Sciences


Selected Abstracts


Safety of Selective Serotonin Reuptake Inhibitor Use Prior to Coronary Artery Bypass Grafting

CLINICAL CARDIOLOGY, Issue 6 2010
Glen L. Xiong MD
Background Selective serotonin reuptake inhibitors (SSRIs) have been shown to increase bleeding risks. This study examined the association of perioperative coronary artery bypass grafting (CABG) bleeding risks and SSRI use prior to CABG. Hypothesis SSRI may be associated with increased bleeding risks after CABG resulting in elevated reoperation rates due to bleeding complications. Methods Patients who underwent CABG between 1999 and 2003 (n = 4794) were identified in a tertiary medical center. SSRI use (n = 246) was determined using inpatient pharmacy records. Outcomes included primary end point of reoperation due to bleeding complications and other secondary measures. Multivariate regression models were constructed to adjust for baseline differences between SSRI and control groups. Results Reoperation due to bleeding complications among SSRI users was not significantly different (odds ratio [OR]: 1.14 (0.52,2.47); P = 0.75) compared to the control group. Other secondary outcomes and 30-day mortality (2.0% in SSRI vs 2.1% in control group; P = 0.92) between the 2 groups were similar. However, the adjusted total volume of postoperative red blood cell (RBC) units transfused was higher in the SSRI group. Conclusion We conclude that there is no compelling evidence to limit the use of SSRIs among patients with coronary artery disease who undergo CABG given the current evidence. Further research may be needed on individual SSRI medications. Copyright © 2010 Wiley Periodicals, Inc. [source]


Risk factors for symptomatic hyponatraemia: the role of pre-existing asymptomatic hyponatraemia

INTERNAL MEDICINE JOURNAL, Issue 3 2007
M. Bissram
Abstract Background: Hyponatraemia is associated with substantial morbidity and mortality. Identification of the risk factors associated with the development of symptomatic hyponatraemia is important in determining preventive strategies. Methods: A retrospective analysis of the risks factors associated with the development of severe, symptomatic hyponatraemia requiring hospital admission over the past 3 years at our institution was carried out. Results: Forty-seven patients (26 women, 21 men) with a hospital admission serum sodium <134 mmol/L were identified. Of these patients, 31 (65.9%) had associated changes in the mental status that improved with the treatment of the hyponatraemia suggesting causality. The average admission sodium level of this cohort was 118.8 mmol/L. Symptomatic hyponatraemia was associated with volume depletion (32.6%), congestive heart failure (26%), syndrome of inappropriate antidiuretic hormone (26%), thiazide diuretic use (26%) and selective serotonin re-uptake inhibitor use (26%). In 21.7% of cases, the cause was multifactorial (congestive heart failure, syndrome of inappropriate antidiuretic hormone or medication use with volume depletion). In 11% of cases, patients were taking both thiazide diuretics and serotonin re-uptake inhibitors. Most importantly, 70.9% of all patients admitted with symptomatic hyponatraemia had pre-existing hyponatraemia that was untreated and believed to be asymptomatic (P < 0.05). This was the most common risk factor identified. We next investigated the prevalence of presumed asymptomatic hyponatraemia in the outpatient setting. Out of 27 496 patients analysed, 14% had serum sodium levels less than or equal to 134 mEq/L and 4% had values less than 130 mEq/L. Conclusion: Pre-existing asymptomatic hyponatraemia is a common finding and is associated with a high risk for the development of worsening hyponatraemia with altered mental status. [source]


Income-Related Differences in the Use of Evidence-Based Therapies in Older Persons with Diabetes Mellitus in For-Profit Managed Care

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 5 2003
Arleen F. Brown MD
OBJECTIVES: To determine whether income influences evidence-based medication use by older persons with diabetes mellitus in managed care who have the same prescription drug benefit. DESIGN: Observational cohort design with telephone interviews and clinical examinations. SETTING: Managed care provider groups that contract with one large network-model health plan in Los Angeles County. PARTICIPANTS: A random sample of community-dwelling Medicare beneficiaries with diabetes mellitus aged 65 and older covered by the same pharmacy benefit. MEASUREMENTS: Patients reported their sociodemographic and clinical characteristics. Annual household income (,$20,000 or <$20,000) was the primary predictor. The outcome variable was use of evidence-based therapies determined by a review of all current medications brought to the clinical examination. The medications studied included use of any cholesterol-lowering medications, use of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) for cholesterol lowering, aspirin for primary and secondary prevention of cardiovascular disease, and angiotensin-converting enzyme (ACE) inhibitors in those with diabetic nephropathy. The influence of income on evidence-based medication use was adjusted for other patient characteristics. RESULTS: The cohort consisted of 301 persons with diabetes mellitus, of whom 53% had annual household income under $20,000. In unadjusted analyses, there were lower rates of use of all evidence-based therapies and lower rates of statin use for persons with annual income under $20,000 than for higher-income persons. In multivariate models, statin use was observed in 57% of higher-income versus 30% of lower-income respondents with a history of hyperlipidemia (P = .01) and 66% of higher-income versus 29% of lower-income respondents with a history of myocardial infarction (P = .03). There were no differences by income in the rates of aspirin or ACE inhibitor use. CONCLUSION: Among these Medicare managed care beneficiaries with diabetes mellitus, all of whom had the same pharmacy benefit, there were low rates of use of evidence-based therapies overall and substantially lower use of statins by poorer persons. [source]


Quality of Care of Nursing Home Residents Hospitalized With Heart Failure

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 11 2002
Ali Ahmed MD, FACP
OBJECTIVES: To determine whether the quality of heart failure (HF) care of hospitalized nursing home (NH) residents is different from that of patients admitted from other locations. DESIGN: Retrospective chart review. SETTING: Nursing home residents discharged from hospitals. PARTICIPANTS: Medicare beneficiaries aged 65 and older. MEASUREMENTS: Subjects were discharged with a primary discharge diagnosis of HF in Alabama in 1994. They were categorized as having been admitted from a NH or other locations. Bivariate logistic regression analysis was used to estimate crude odds ratios (ORs) and 95% confidence intervals (CIs) for left ventricular function (LVF) evaluation and angiotensin-converting enzyme (ACE) inhibitor use for NH residents relative to nonresidents. Multivariate generalized linear models were developed to determine independence of associations. RESULTS: Subjects (N = 1,067 years) had a mean age ± standard deviation of 79 ± 7.4, 60% were female, and 18% were African Americans. Fewer NH residents (n = 95) received LVF evaluation (39% vs 60%, P < .001) and ACE inhibitors (50% vs 72%, P = .111). NH residents had lower odds for LVF evaluation (OR = 0.42, 95% CI = 0.27,0.64). The odds for ACE inhibitor use, although of similar magnitude, did not reach statistical significance (OR = 0.40, 95% CI = 0.12,1.28). After adjustment of patient and care characteristics, admission from a NH was significantly associated with lower LVF evaluation (adjusted OR = 0.64, 95% CI = 0.49,0.82) but not with ACE inhibitor use (adjusted OR = 0.59, 95% CI = 0.16,2.14). CONCLUSIONS: Quality of HF care received by hospitalized NH residents was lower than that received by others. Further studies are needed to determine reasons for the lack of appropriate evaluation and treatment of NH patients with HF who are admitted to hospitals. [source]


Type 2 Diabetes: RENAAL and IDNT,The Emergence of New Treatment Options

JOURNAL OF CLINICAL HYPERTENSION, Issue 1 2002
Domenic A. Sica MD
The Reduction in End Points in NIDDM with the Angiotensin II Antagonist Losartan (RENAAL) study and the Irbesartan Diabetic Nephropathy Trial (IDNT) are two recently reported trials with hard end points, conducted in patients in advanced stages of diabetic nephropathy. Two other studies,the Irbesartan Microalbuminuria Study (IRMA)-2 and the Microalbuminuria Reduction with Valsartan study (MARVAL),were trials conducted in patients with type 2 diabetes with microalbuminuria, a cardiovascular risk factor associated with early-stage diabetic nephropathy. These trials all had a common theme,that is, does an angiotensin receptor blocker (ARB) interfere with the natural history of diabetic nephropathy in a blood pressure-independent fashion? Without question, the results of these trials legitimatize the use of the ARB class in forestalling the deterioration in renal function, which is almost inevitable in the patient with untreated diabetic nephropathy. These data can now be added to the vast array of evidence supporting angiotensin-converting enzyme (ACE) inhibitor use in patients with nephropathy associated with type 1 diabetes. It now appears a safe conclusion that the patient with diabetic nephropathy should receive therapy with an agent that interrupts the renin-angiotensin system. These studies have not resolved the question as to whether an ACE inhibitor or an ARB is the preferred agent in people with nephropathy from type 1 diabetes, though the optimal doses of these drugs remain to be determined. Head-to-head studies comparing ACE inhibitors to ARBs in diabetic nephropathy are not likely to occur, so it is unlikely that comparable information will be forthcoming with ACE inhibitors. An evidence-based therapeutic approach derived from these trials would argue for ARBs to be the foundation of therapy in the patient with type 2 diabetes and nephropathy. [source]


Meta-analysis: proton pump inhibitor use and the risk of community-acquired pneumonia

ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 11 2010
J. JOHNSTONE
Aliment Pharmacol Ther,31, 1165,1177 Summary Background, Observational studies examining the association between proton pump inhibitor (PPI) use and risk of community-acquired pneumonia are conflicting. Aim, To assess systematically the association between risk of community-acquired pneumonia and PPI use in adults. Methods, We searched MEDLINE, EMBASE and CINAHL databases between 1988 and January 2010. Two reviewers independently selected studies based on eligibility criteria and extracted data. Included studies evaluated adults (,18 years) who took PPIs as an out-patient. The primary outcome was community-acquired pneumonia. Only observational studies with a comparison arm were included. Results, Over 2600 citations were reviewed. Six studies were included. All were nested case-control studies. Meta-analysis found an increased risk of community-acquired pneumonia associated with PPI use [OR 1.36 (95% CI 1.12,1.65)]; significant heterogeneity remained (I2 92%, P < 0.001). In exploratory subgroup analysis, short duration of use was associated with an increased odds of community-acquired pneumonia [OR 1.92 (95% CI 1.40,2.63), I2 75%, P = 0.003], whereas chronic use was not [OR 1.11 (95% CI 0.90,1.38), I2 91%, P < 0.001], a significant interaction (P < 0.005). Conclusions, Heterogeneity precluded interpretation of the summary statistic. Exploratory analysis revealed that duration of PPI use may impact the risk of community-acquired pneumonia, a finding that should be explored in future studies. [source]


Socio-demographic factors influence chronic proton pump inhibitor use by a large population in the Netherlands

ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 5 2009
O. S. Van BOXEL
Summary Background, Chronic proton pump inhibitor (PPI) use is common in the Western world. Socio-economic status and socio-demographic factors have been shown to influence decisions related to prescribing of various drugs, but the influence of these factors on chronic PPI use is uncertain. Aim, To study the influence of SES and socio-demographic factors on chronic PPI use. Methods, Data were collected from a database of a Dutch health insurance company. Subjects having had at least one prescription for a PPI were identified and followed up for 6 months. Patients were then subdivided into chronic PPI users. Socio-demographic status was based on neighbourhood level of residence. Logistic regression was performed to determine socio-demographic factors associated with PPI use. Results, A total of 2 001 787 insured individuals were included, 85 253 subjects were chronic users. Both low income (OR 1.55; CI 1.52,1.58) and low educational level (OR 1.33; CI 1.31,1.36) were associated with chronic PPI use. Other independent predictive variables included use of 10 or more concomitant medications (OR 5.33; CI 4.96,5.72) and the use of prokinetic drugs (OR 10.01; CI 9.22,10.88). Conclusions, Patients of a lower socio-demographic status are more likely to use PPIs on a chronic basis. The observed gradient in PPIs use may reflect differences in health, healthcare use or healthcare supply. [source]


Timing of Dose Relative to Sexual Intercourse Attempt in Previous Sildenafil Citrate Users Treated with Tadalafil: A Geographical Comparison from a Single Arm, Open-Label Study

THE JOURNAL OF SEXUAL MEDICINE, Issue 10 2009
Eusebio Rubio-Aurioles MD
ABSTRACT Introduction., Previous research has demonstrated that sildenafil citrate users alter dosing-sexual attempt behavior when switched to tadalafil. The impact of geography and culture on sexual behavior with phosphodiesterase type 5 (PDE5) inhibitor treatment has not been fully investigated. Aim., To describe and compare the changes in dosing-sexual attempt behavior with sildenafil citrate vs. tadalafil treatment across four distinct geographies: Asia, Australia/New Zealand (ANZ), Central Eastern Europe/Middle East (CEE/ME), and Latin America (LA). Methods., Data from a single-arm, open-label clinical trial conducted in 21 countries from November 2002 to May 2004 were used in this analysis. Men with erectile dysfunction and a history of ,6-week prior sildenafil citrate use continued sildenafil citrate treatment for 4 weeks then switched to tadalafil for 8 weeks. Dosing instructions were provided. Main Outcomes Measures., Timing of dose and sexual intercourse was assessed through patient diaries for the final 4 weeks of each treatment period. Results., A total of 2,760 men were enrolled: Asia 15.8%; ANZ 29.4%; CEE/ME 19.7%; LA 35.1%. The median time from dosing to intercourse was significantly increased during tadalafil treatment across all geographical regions; however, the magnitude of increase differed significantly by geography (P < 0.0001). The Asian cohort demonstrated the shortest duration between dosing and sexual intercourse attempts (irrespective of drug), and altered sexual behavior the least upon switching to tadalafil. The ANZ cohort demonstrated the longest duration between dosing and sexual intercourse attempts (irrespective of drug), and altered sexual behavior the most upon switching to tadalafil. Conclusion., Men with a history of established sildenafil citrate use alter their dose-attempt behavior when treated with tadalafil irrespective of geography. However, the extent to which sexual behavior alters is not uniform across geographical regions, suggesting that dosing instructions and duration of drug effectiveness, in combination with personal and cultural preferences, may determine sexual behavior with PDE5 inhibitor use. Rubio-Aurioles E, Glina S, Abdo CHN, Hernandez-Serrano R, Rampazzo C, Sotomayor M, West TM, Gallagher GL, and Lenero E. Timing of dose relative to sexual intercourse attempt in previous sildenafil citrate users treated with tadalafil: A geographical comparison from a single arm, open-label study. J Sex Med 2009;6:2836,2850. [source]


Men's Sexual Health: Evaluating the Effectiveness of Print- and PDA-based CME

THE JOURNAL OF SEXUAL MEDICINE, Issue 9 2009
Gregory A. Broderick MD
ABSTRACT Introduction., Personal digital assistant (PDA)-based continuing medical education (CME) activities have become widely available. Aims., To evaluate the effectiveness of print- and PDA-based CME materials in erectile dysfunction (ED). Methods., CME materials describing links between ED and comorbid medical conditions, effects of certain lifestyle modifications on ED, and treatment of ED with phosphodiesterase 5 (PDE5) inhibitors were distributed as a print supplement and as electronic modules, viewed with PDAs. We evaluated how effectively these materials improved evidence-based clinical choices, using survey questions about case vignettes and comparing responses of CME participants (N = 85) and matched nonparticipants (N = 94). Main Outcome Measures., Effect size, measuring the difference in evidence-based clinical scores between participants and nonparticipants. Results., CME certificates were awarded to 3,557 participants (459 print, 3,098 PDA). Among survey respondents, significantly more CME participants recognized that ED was associated with greater risk for myocardial infarction (61% participants; 34% nonparticipants; P , 0.001) and was a strong marker for diabetes mellitus (37% participants; 9% nonparticipants; P , 0.001). In contrast, participants and nonparticipants both displayed a good understanding of the relationships of smoking, obesity, and sedentary lifestyle with ED and of using PDE5 inhibitors to treat ED in patients with prostate cancer or benign prostatic hyperplasia; this likely reflects a good baseline understanding of these topics. Participants and nonparticipants each displayed a poor understanding of the recommendations regarding nonarteritic anterior ischemic optic neuropathy and PDE5 inhibitor use. Patient reluctance to discuss sexual concerns was perceived as the most significant barrier to optimal ED management. Conclusions., Given patient reluctance to discuss sexual concerns, future CME activities should focus on educating health-care providers and patients that ED is a risk factor for cardiovascular disease and diabetes. Both print- and PDA-based CME on ED were effective; the large number of lesson completers suggests a trend toward on-demand, self-selected CME is positive. Broderick GA, and Abdolrasulnia M. Men's sexual health: Evaluating the effectiveness of print- and PDA-based CME. J Sex Med 2009;6:2417,2424. [source]


Patients Responding to Phosphodiesterase Type 5 Inhibitor Therapy,What Do Their Sexual Partners Know?

THE JOURNAL OF SEXUAL MEDICINE, Issue 1 2007
Theodor Klotz MD
ABSTRACT Introduction., Phosphodiesterase type 5 (PDE5) inhibitors are an efficacious therapy in men with erectile dysfunction (ED). There are only a few studies that also focus on the participating couples during PDE5 inhibitor therapy. Aim., To determine to what extent patients personally informed their sexual partners about their ongoing PDE5 inhibitor therapy. Main Outcome Measures., Likelihood of informing the female partner by the patient himself about the use of PDE5 inhibitors. Methods., A total of 216 men (mean age 62.3 years) with ED were successfully treated with PDE5 inhibitors in three independent centers. After an interval of at least 3 months of successful ED therapy, all patients were asked by questionnaire whether their sexual partners were informed of their PDE5 inhibitor therapy. Results., Eighty-two percent of the patients were exclusively involved in one stable sexual relationship, 9.7% of the men admitted to having changing sexual partners, and 6% did not give any information at all about their sexual partners. Twenty percent of the men had a severe ED (International Index of Erectile Function [IIEF-5] <11). Forty-nine percent showed a moderate ED (IIEF-5 11,16) and 31% suffered a mild ED (IIEF-5 >16). PDE5 inhibitor medication was used 1.2 times/month by men with a severe ED, 2.1 times/month by patients with a moderate ED, and 2.9 times/month by men with a mild ED. Forty-one (93%) of the 44 patients with a severe ED informed their sexual partners that they were taking PDE5 inhibitors. In the patient group with moderate ED, 49 (47%) of 105 patients and only 14 (21%) of 67 of the patients with mild ED shared this information with their partners. Conclusion., Less than 40% of the patients suffering a moderate or mild ED using PDE5 inhibitors shared this information with their partners. It seems that patients find ED so disturbing that many patients do not inform their partners of PDE5 inhibitor use. Klotz T, Mathers M, Klotz R, and Sommer F. Patients responding to phosphodiesterase type 5 inhibitor therapy,What do their sexual partners know? J Sex Med 2007;4:162,165. [source]


Chronic Kidney Disease Following Non-Myeloablative Hematopoietic Cell Transplantation

AMERICAN JOURNAL OF TRANSPLANTATION, Issue 1 2006
A. S. Weiss
Chronic kidney disease (CKD) following myeloablative allogeneic hematopoietic cell transplantation (HCT) occurs in 20% of survivors at 1 year and is believed to be due to radiation nephritis. Non-myeloablative allogeneic HCT is a recent procedure that employs significantly lower doses of chemoradiotherapy, however, incidence and risk factors for CKD following non-myleoablative HCT have not been defined. We performed a retrospective cohort study of 122 patients from three institutions who were available for analysis at 6 months following non-myeloablative HCT. Patients received two Gy of radiation; 62% received fludarabine as preconditioning. CKD was defined as at least a 25% reduction in glomerular filtration rate (GFR) from baseline using the abbreviated modified diet in renal disease (MDRD) equation. Eighty-one of 122 patients (66%) showed evidence of CKD at follow-up. Multivariate analysis revealed that acute renal failure (ARF) during the first 100 days post-transplant was associated with development of CKD (Adjusted OR 32.8 with 95% CI 4.3,250) after controlling for other variables. Previous autologous HCT, long-term calcineurin inhibitor use and extensive chronic GVHD were independently associated with CKD. CKD following non-myeloablative HCT appears to be a distinct clinical entity and likely not related to radiation nephritis. Future research should focus on possible mechanisms for alleviating chronic injury and decreasing use of calcineurin inhibitors. [source]


Comparison of nonsteroidal anti-inflammatory drugs and cyclooxygenase-2 (COX-2) inhibitors use in Australia and Nova Scotia (Canada)

BRITISH JOURNAL OF CLINICAL PHARMACOLOGY, Issue 1 2009
Nadia Barozzi
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT , Cyclo-oxygenase-2 (COX-2) inhibitors were marketed aggressively and their rapid uptake caused safety concerns and budgetary challenges in Canada and Australia. WHAT THIS STUDY ADDS , The study showed that there were similarities in the anti-inflammatory prescribing pattern between Australia and Nova Scotia; however, volumes of both ns-NSAIDs and COX-2 inhibitors prescribed were higher in Australia in the study period. The remarkable increase observed in Australia in NSAIDs use was essentially due to the much higher COX-2 inhibitor use. Differences in regulatory and marketing practices, as well as cultural and historical differences might be some of the reasons for differences in the NSAID prescribing between Australia and Nova Scotia. AIMS Cyclooxygenase-2 (COX-2) inhibitors were marketed aggressively and their rapid uptake caused safety concerns and budgetary challenges in Canada and Australia. The objectives of this study were to compare and contrast COX-2 inhibitors and nonselective nonsteroidal anti-inflammatory drug (ns-NSAID) use in Nova Scotia (Canada) and Australia and to identify lessons learned from the two jurisdictions. METHODS Ns-NSAID and COX-2 inhibitor Australian prescription data (concession beneficiaries) were downloaded from the Medicare Australia website (2001,2006). Similar Pharmacare data were obtained for Nova Scotia (seniors and those receiving Community services). Defined daily doses per 1000 beneficiaries day,1 were calculated. COX-2 inhibitors/all NSAIDs ratios were calculated for Australia and Nova Scotia. Ns-NSAIDs were divided into low, moderate and high risk for gastrointestinal side-effects and the proportions of use in each group were determined. Which drugs accounted for 90% of use was also calculated. RESULTS Overall NSAID use was different in Australia and Nova Scotia. However, ns-NSAID use was similar. COX-2 inhibitor dispensing was higher in Australia. The percentage of COX-2 inhibitor prescriptions over the total NSAID use was different in the two countries. High-risk NSAID use was much higher in Australia. Low-risk NSAID prescribing increased in Nova Scotia over time. The low-risk/high-risk ratio was constant throughout over the period in Australia and increased in Nova Scotia. CONCLUSIONS There are significant differences in Australia and Nova Scotia in use of NSAIDs, mainly due to COX-2 prescribing. Nova Scotia has a higher proportion of low-risk NSAID use. Interventions to provide physicians with information on relative benefits and risks of prescribing specific NSAIDs are needed, including determining their impact. [source]


mTOR inhibitor-associated dermatologic and mucosal problems

CLINICAL TRANSPLANTATION, Issue 2 2010
Josep M. Campistol
Campistol JM, de Fijter JW, Flechner SM, Langone A, Morelon E, Stockfleth E. mTOR inhibitor-associated dermatologic and mucosal problems. Clin Transplant 2010 DOI: 10.1111/j.1399-0012.2010.01232.x. © 2010 John Wiley & Sons A/S. Abstract:, Mammalian target of rapamycin inhibitor use is associated with numerous adverse events, including dermatologic and mucosal problems. Awareness of these complications, which clinically manifest across a severity spectrum from minor through severe and may occur at varied time points after initiation of sirolimus therapy, can be useful to clinicians in both managing these events and determining the appropriate intervention(s) for patients. This manuscript examines the dermatologic and mucosal problems associated with mammalian target of rapamycin inhibitor use, reviews the literature, and provides personal experiences regarding the management and treatment of these adverse events. [source]