American Journal of Hypertension最新文献

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Targeted Treatment Reverses Increased Left Cardiac Work in Unilateral vs. Bilateral Primary Aldosteronism. 靶向治疗可逆转单侧原发性醛固酮增多症与双侧原发性醛固酮增多症的左心功增加。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae087
Eeva Kokko, Marianna Viukari, Jenni K Koskela, Manoj Kumar Choudhary, Niina Matikainen, Jukka Mustonen, Pasi I Nevalainen, Ilkka Pörsti
{"title":"Targeted Treatment Reverses Increased Left Cardiac Work in Unilateral vs. Bilateral Primary Aldosteronism.","authors":"Eeva Kokko, Marianna Viukari, Jenni K Koskela, Manoj Kumar Choudhary, Niina Matikainen, Jukka Mustonen, Pasi I Nevalainen, Ilkka Pörsti","doi":"10.1093/ajh/hpae087","DOIUrl":"10.1093/ajh/hpae087","url":null,"abstract":"<p><strong>Background: </strong>The incidence of cardiovascular complications may be higher in unilateral than bilateral primary aldosteronism (PA). We compared noninvasive hemodynamics after targeted therapy of bilateral vs. unilateral PA.</p><p><strong>Methods: </strong>Adrenal vein sampling was performed, and hemodynamics recorded using radial artery pulse wave analysis and whole-body impedance cardiography (n = 114). In 40 patients (adrenalectomy n = 20, spironolactone-based treatment n = 20), hemodynamic recordings were performed after 33 months of PA treatment.</p><p><strong>Results: </strong>In initial cross-sectional analysis, 51 patients had bilateral and 63 unilateral PA. The mean ages were 50.6 and 54.3 years (P = 0.081), and body mass indexes 30.3 and 30.6 kg/m2 (P = 0.724), respectively. Aortic blood pressure (BP) and cardiac output did not differ between the groups, but left cardiac work was ~10% higher in unilateral PA (P = 0.022). In the follow-up study, initial and final BPs in the aorta were not significantly different, while initial cardiac output (+13%, P = 0.015) and left cardiac work (+17%, P = 0.009) were higher in unilateral than bilateral PA. After median treatment of 33 months, the differences in cardiac load were abolished, and extracellular water volume was reduced by 1.3 and 1.4 l in bilateral vs. unilateral PA, respectively (P = 0.814).</p><p><strong>Conclusions: </strong>These results suggest that unilateral PA burdens the heart more than bilateral PA, providing a possible explanation for the higher incidence of cardiac complications in unilateral disease. A similar reduction in aldosterone-induced volume excess was obtained with targeted surgical and medical treatment of PA.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"884-892"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471835/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141562426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Blood Pressure on Ambulatory Monitoring and Risk for Cardiovascular Disease and All-cause Mortality: Ecological Validity or Measurement Reliability? 动态监测血压与心血管疾病和全因死亡率风险:生态有效性还是测量可靠性?
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae133
Rikki M Tanner, Byron C Jaeger, Corey K Bradley, S Justin Thomas, Yuan-I Min, Shakia T Hardy, M Ryan Irvin, Daichi Shimbo, Joseph E Schwartz, Paul Muntner
{"title":"Blood Pressure on Ambulatory Monitoring and Risk for Cardiovascular Disease and All-cause Mortality: Ecological Validity or Measurement Reliability?","authors":"Rikki M Tanner, Byron C Jaeger, Corey K Bradley, S Justin Thomas, Yuan-I Min, Shakia T Hardy, M Ryan Irvin, Daichi Shimbo, Joseph E Schwartz, Paul Muntner","doi":"10.1093/ajh/hpae133","DOIUrl":"https://doi.org/10.1093/ajh/hpae133","url":null,"abstract":"<p><strong>Background: </strong>The association with cardiovascular disease (CVD) is stronger for mean systolic blood pressure (SBP) estimated using ambulatory blood pressure monitoring (ABPM) versus office measurements. Determining whether this is due to ABPM providing more measurement reliability or greater ecological validity can inform its use.</p><p><strong>Methods: </strong>We estimated the association of mean SBP based on 2 office measurements and 2, 5, 10, and 20 measurements on ABPM with incident CVD in the Jackson Heart Study (n=773). Hazard ratios (HRs) for CVD were estimated per standard deviation higher mean SBP. CVD events were defined by incident fatal or non-fatal stroke, non-fatal myocardial infarction, or fatal coronary heart disease.</p><p><strong>Results: </strong>There were 80 CVD events over a median 15 years. The adjusted HRs for incident CVD were 1.03 (95%CI: 0.90-1.19) for mean office SBP and 1.30 (95%CI: 1.12-1.50), 1.34 (95%CI: 1.15-1.56), 1.36 (95%CI: 1.17-1.59), and 1.38 (95%CI: 1.17-1.63) for mean SBP using the first 2, 5, 10 and 20 ABPM readings. The difference in the HRs for incident CVD ranged from 0.26 (95%CI: 0.07-0.46) to 0.35 (95%CI: 0.15-0.54) when comparing mean office SBP versus 2, 5, 10, or 20 sequential ABPM readings. The association with incident CVD was also stronger for mean SBP based on 2, 5, 10, and 20 randomly-selected ABPM readings versus 2 office readings.</p><p><strong>Conclusion: </strong>Mean SBP based on two ABPM readings versus two office measurements had a stronger association with CVD events. The increase in the strength of the association with more ABPM readings was small.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of Impedance Cardiography to Guide Blood Pressure Lowering Medication Selection: Systematic Review of Randomized Controlled Trials. 使用阻抗心动图指导降压药物选择:随机对照试验的系统回顾。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae090
Anthony J Viera, Lauren Hart, Pedro Gomez Altamirano, Brandi Tuttle, Ashley Price, Andrew Sherwood
{"title":"Use of Impedance Cardiography to Guide Blood Pressure Lowering Medication Selection: Systematic Review of Randomized Controlled Trials.","authors":"Anthony J Viera, Lauren Hart, Pedro Gomez Altamirano, Brandi Tuttle, Ashley Price, Andrew Sherwood","doi":"10.1093/ajh/hpae090","DOIUrl":"10.1093/ajh/hpae090","url":null,"abstract":"<p><strong>Background: </strong>Blood pressure (BP) control can be difficult to attain due to multiple factors, including choosing and titrating antihypertensive medications. Measurement of hemodynamic parameters using impedance cardiography (ICG) at the point of care may allow better alignment of medication with the mechanism(s) underlying an individual's hypertension. We conducted a systematic review of randomized controlled trials of ICG compared to usual care for attainment of BP control.</p><p><strong>Methods: </strong>We searched Medline inclusive of the year 1946 to January 31, 2024, using a combination of MeSH terms and keywords. English-language articles were eligible for inclusion if they described results of a randomized controlled trial designed to compare ICG-guided BP-medication selection to usual care (i.e., clinician judgment/guidelines-based alone) among a sample of hypertensive patients.</p><p><strong>Results: </strong>Of 1,952 titles screened, 6 trials met inclusion criteria. The first was published in 2002 from a specialty clinic in the United States, and the most recent in 2021 from a specialty clinic in China. One trial was conducted in a primary care setting. Sample sizes ranged from 102 to 164. Participants randomized to ICG-guided antihypertensive medication had reduced BP in the short-term to a greater extent than those randomized to usual care, with odds ratios for BP control (<140/90 mm Hg) at 3 months ranging from 1.87 to 2.92. This effect was seen in both specialty clinics and in a primary care setting.</p><p><strong>Conclusions: </strong>Incorporation of ICG in the clinical setting may facilitate medication selection that leads to a greater proportion of patients obtaining BP control in the short term.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"916-923"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141589396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geographical Differences in Hydrochlorothiazide Associated Risk of Skin Cancer Balanced Against Disability Related to Hypertensive Heart Disease. 氢氯噻嗪相关皮肤癌风险的地域差异与高血压心脏病相关残疾的平衡。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae101
Anders Almskou Rasmussen, Niels Henrik Buus, Simon G Comerma Steffensen
{"title":"Geographical Differences in Hydrochlorothiazide Associated Risk of Skin Cancer Balanced Against Disability Related to Hypertensive Heart Disease.","authors":"Anders Almskou Rasmussen, Niels Henrik Buus, Simon G Comerma Steffensen","doi":"10.1093/ajh/hpae101","DOIUrl":"10.1093/ajh/hpae101","url":null,"abstract":"<p><strong>Background: </strong>Hypertension affects 25%-30% of the world population. Hydrochlorothiazide (HCTZ) is among the most used and cheapest medications but was in 2018 labeled with a warning stating the increased risk of nonmelanoma skin cancer (NMSC). This study describes geographical differences in the association between HCTZ and NMSC from the perspective of hypertensive heart disease (HHD).</p><p><strong>Methods: </strong>We conducted a systematic literature search (PubMed, Embase, Clinicaltrial.gov, and Clinicaltrial.eu) using PICO/PECO acronyms, including case-control, cohort, and randomized controlled trials. We constructed a rate ratio of disability-adjusted life years (DALY) for HHD/NMSC in the global burden of disease (GBD) regions.</p><p><strong>Results: </strong>No increased risk of NMSC with the use of HCTZ was found in Taiwan, India, and Brazil. A small (hazard ratio (HR)/odds ratio (OR) ≤1.5) but significantly increased risk was seen in Canada, the United States, and Korea. An increased risk (1.5< HR/OR ≤2.5) in Iceland, Spain, and Japan and a highly increased risk (HR/OR >2.5) in the United Kingdom, Denmark, the Netherlands, and Australia. HHD is associated with a more than tenfold DALY rate compared with NMSC in 13 of 21 GBD regions, corresponding to 77.2% of the global population. In none of these 13 regions was there an increased risk of HCTZ-associated NMSC.</p><p><strong>Conclusions: </strong>Despite limited information from many countries, our data point to large geographical differences in the association between HCTZ and NMSC. In all GBD regions, except Australasia, HHD constitutes a more than fivefold DALY rate compared to NMSC. This disproportionate risk should be considered before avoiding HCTZ from the antihypertensive treatment.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"924-932"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141900646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patient Practices, Perceptions, and Barriers to Self-measurement of Blood Pressure in a Rural Health System. 农村医疗系统中患者自我测量血压的做法、看法和障碍。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae085
Sunny Parmar, Yvonne Commodore-Mensah, Gurmukteshwar Singh, Kathryn Foti, Cheryl Himmelfarb, Alexander Richard Chang, Ion Dan Bucaloiu
{"title":"Patient Practices, Perceptions, and Barriers to Self-measurement of Blood Pressure in a Rural Health System.","authors":"Sunny Parmar, Yvonne Commodore-Mensah, Gurmukteshwar Singh, Kathryn Foti, Cheryl Himmelfarb, Alexander Richard Chang, Ion Dan Bucaloiu","doi":"10.1093/ajh/hpae085","DOIUrl":"10.1093/ajh/hpae085","url":null,"abstract":"<p><strong>Background: </strong>Self-measurement of blood pressure (SMBP) is endorsed by current guidelines for diagnosing and managing hypertension (HTN). We surveyed individuals in a rural healthcare system on practices and attitudes related to SMBP that could guide future practice.</p><p><strong>Methods: </strong>Survey questions were sent via an online patient portal to a random sample of 56,275 patients with either BP > 140/90 mm Hg or cardiovascular care in the system. Questions addressed home blood pressure (BP) monitor ownership, use, willingness to purchase, desire to share data with providers, perceptions of patient education, and patient-centeredness of care. Multivariable logistic regression was used to examine patient characteristics associated with SMBP behaviors.</p><p><strong>Results: </strong>The overall response rate was 12%, and 8.4% completed all questions. Most respondents, 60.9%, owned a BP monitor, while 51.5% reported checking their BP at home the month prior. Among device owners, 45.1% reported receiving instructions on SMBP technique, frequency, and reading interpretation. Only 29.2% reported sharing readings with providers in the last 6 months, whereas 57.9% said they would be willing to do so regularly. Older age, female sex, and higher income were associated with a higher likelihood of device ownership. Younger age, lower income, and Medicaid insurance were associated with a greater willingness to share SMBP results with providers regularly.</p><p><strong>Conclusions: </strong>While a significant proportion of respondents performed SMBP regularly, many reported insufficient education on SMBP, and few shared their home BP readings with providers. Patient-centered interventions and telemedicine-based care are opportunities that emerged in our survey that could enhance future HTN care.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"876-883"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471836/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141454640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patient Experiences With Blood Pressure Measurement Methods for Hypertension Diagnosis: Qualitative Findings From the BP-CHECK Study. 患者对高血压诊断中血压测量方法的体验:BP-CHECK 研究的定性结果。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae088
Laurel D Hansell, Clarissa W Hsu, Sean A Munson, Karen L Margolis, Matthew J Thompson, Kelly J Ehrlich, Yoshio N Hall, Melissa L Anderson, Sarah C Evers, Miriam S Marcus-Smith, Jennifer B McClure, Beverly B Green
{"title":"Patient Experiences With Blood Pressure Measurement Methods for Hypertension Diagnosis: Qualitative Findings From the BP-CHECK Study.","authors":"Laurel D Hansell, Clarissa W Hsu, Sean A Munson, Karen L Margolis, Matthew J Thompson, Kelly J Ehrlich, Yoshio N Hall, Melissa L Anderson, Sarah C Evers, Miriam S Marcus-Smith, Jennifer B McClure, Beverly B Green","doi":"10.1093/ajh/hpae088","DOIUrl":"10.1093/ajh/hpae088","url":null,"abstract":"<p><strong>Background: </strong>Out-of-office blood pressure (BP) measurement is recommended when making a new hypertension diagnosis. In practice, however, hypertension is primarily diagnosed using clinic BP. The study objective was to understand patient attitudes about accuracy and patient-centeredness regarding hypertension diagnostic methods.</p><p><strong>Methods: </strong>Qualitative study within a randomized controlled diagnostic study conducted between May 2017 and March 2019 comparing the accuracy and acceptability of BP measurement methods among patients in an integrated healthcare delivery system. All participants completed 24-hour ambulatory blood pressure monitoring (ABPM), plus either clinic BP, home BP monitoring (HBPM), or kiosk BP diagnostic testing. Qualitative interviewees (aged 31-76 years, n = 35) were recruited from the main study.</p><p><strong>Results: </strong>Participants who completed HBPM found it to be comfortable and low burden, and believed it produced accurate results. Participants in the clinic arm described clinic measurements as inconvenient. Participants in the kiosk arm overall did not favor kiosks due to concerns about accuracy and privacy. Participants described ABPM as the most accurate method due to repeated measurements over the 24-hour period in real-world contexts, but many found it uncomfortable and disruptive. Participants also noted methods that involved repeated measures such as HBPM and ABPM particularly influenced their understanding of whether or not they had hypertension.</p><p><strong>Conclusions: </strong>Hypertension diagnostic methods that include more BP measurements help patients gain a deeper understanding of BP variability and the lower reliability of infrequent measurements in the clinic. These findings warrant implementing strategies to enhance out-of-office BP diagnostic testing in primary care.</p><p><strong>Clinical trials registration: </strong>Trial number NCT03130257.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"868-875"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141589395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self-measurement of Blood Pressure in a Rural Health System: Highlighting the Opportunity for All Health Systems. 农村医疗系统的自我血压测量:为所有医疗系统提供机会。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae097
Jeffrey Brettler
{"title":"Self-measurement of Blood Pressure in a Rural Health System: Highlighting the Opportunity for All Health Systems.","authors":"Jeffrey Brettler","doi":"10.1093/ajh/hpae097","DOIUrl":"10.1093/ajh/hpae097","url":null,"abstract":"","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"856-858"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141747226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patient Experience in a Remote Patient Monitoring Program for Hypertension: A Qualitative Study. 高血压远程患者监测计划中的患者体验:定性研究。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae086
Fion Chu, Allison Stark, Andrew Telzak, Sharon Rikin
{"title":"Patient Experience in a Remote Patient Monitoring Program for Hypertension: A Qualitative Study.","authors":"Fion Chu, Allison Stark, Andrew Telzak, Sharon Rikin","doi":"10.1093/ajh/hpae086","DOIUrl":"10.1093/ajh/hpae086","url":null,"abstract":"<p><strong>Background: </strong>Remote patient monitoring (RPM), which includes out-of-office blood pressure (BP) measurement, coupled with interventions including telehealth and team-based care, is recommended for hypertension (HTN) management. We aimed to assess participant experience with RPM for HTN (RPM-HTN) to understand barriers and facilitators to implementing RPM-HTN in a primary care population where health disparities and social inequities are prevalent.</p><p><strong>Methods: </strong>This is a qualitative implementation study of participants' experiences with an RPM-HTN program for primary care patients with uncontrolled HTN at an academic health system. We recruited participants with high and low levels of engagement (≥16 or <16 days of transmitted BP readings per month). Semi-structured interviews were conducted, and descriptive statistics and rapid qualitative analysis were used to identify factors affecting the implementation of RPM-HTN, specifically adoption, acceptability, appropriateness, and feasibility.</p><p><strong>Results: </strong>Multiple themes emerged from interviews with 14 participants. A doctor's recommendation and wanting help with BP management were facilitators for engagement, while work conflicts and forgetfulness were barriers to engagement. Participants enjoyed the format and content of nurse and clinical pharmacist phone calls and forming a relationship with the team; expressed improved understanding of HTN and BP management; and appreciated the convenience of remote monitoring.</p><p><strong>Conclusions: </strong>Participants found RPM-HTN acceptable and appropriate, highlighting the team-based and out-of-office approach to care. This study provides actionable targets to overcome feasibility barriers to implementation. In order to increase engagement, RPM policies and procedures should take into account barriers including the quantity of required BP measurements and mechanisms of telehealth communication.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"861-867"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
State-of-the-Art-Review: Mechanisms of Action of SGLT2 Inhibitors and Clinical Implications. 最新进展回顾 SGLT2 抑制剂的作用机制和临床意义。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae092
Volker Vallon
{"title":"State-of-the-Art-Review: Mechanisms of Action of SGLT2 Inhibitors and Clinical Implications.","authors":"Volker Vallon","doi":"10.1093/ajh/hpae092","DOIUrl":"10.1093/ajh/hpae092","url":null,"abstract":"<p><strong>Background: </strong>Inhibitors of the Na+-coupled glucose transporter SGLT2 (SGLT2i) primarily shift the reabsorption of large amounts of glucose from the kidney's early proximal tubule to downstream tubular segments expressing SGLT1, and the non-reabsorbed glucose is spilled into the urine together with some osmotic diuresis. How can this protect the kidneys and heart from failing as observed in individuals with and without type 2 diabetes?</p><p><strong>Goal: </strong>Mediation analyses identified clinical phenotypes of SGLT2i associated with improved kidney and heart outcome, including a reduction of plasma volume or increase in hematocrit, and lowering of serum urate levels and albuminuria. This review outlines how primary effects of SGLT2i on the early proximal tubule can explain these phenotypes.</p><p><strong>Results: </strong>The physiology of tubule-glomerular communication provides the basis for acute lowering of GFR and glomerular capillary pressure, which contributes to lowering of albuminuria but also to long term preservation of GFR, at least in part by reducing kidney cortex oxygen demand. Functional co-regulation of SGLT2 with other sodium and metabolite transporters in the early proximal tubule explains why SGLT2i initially excrete more sodium than expected and are uricosuric, thereby reducing plasma volume and serum urate. Inhibition of SGLT2 reduces early proximal tubule gluco-toxicity and by shifting transport downstream may simulate \"systemic hypoxia\", and the resulting increase in erythropoiesis, together with the osmotic diuresis, enhances hematocrit and improves blood oxygen delivery. Cardio-renal protection by SGLT2i is also provided by a fasting-like and insulin-sparing metabolic phenotype and, potentially, by off-target effects on the heart and microbiotic formation of uremic toxins.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"841-852"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471837/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prognostic Value of Mild Asymptomatic Intracranial Atherosclerotic Stenosis in Patients With Hypertension. 高血压患者轻度无症状颅内动脉粥样硬化狭窄的预后价值。
IF 3.2 3区 医学
American Journal of Hypertension Pub Date : 2024-10-14 DOI: 10.1093/ajh/hpae095
Jin Zhang, Xiaofeng Tang, Yuesheng Qian, Jing Ma, Qin Wang, Huawei Ling, Kemin Chen, Yan Li, Pingjin Gao, Yan Wang, Dingliang Zhu
{"title":"Prognostic Value of Mild Asymptomatic Intracranial Atherosclerotic Stenosis in Patients With Hypertension.","authors":"Jin Zhang, Xiaofeng Tang, Yuesheng Qian, Jing Ma, Qin Wang, Huawei Ling, Kemin Chen, Yan Li, Pingjin Gao, Yan Wang, Dingliang Zhu","doi":"10.1093/ajh/hpae095","DOIUrl":"10.1093/ajh/hpae095","url":null,"abstract":"<p><strong>Background: </strong>Mild asymptomatic intracranial atherosclerotic stenosis (aICAS) is common in Chinese patients with hypertension. However, there are no data on its prognostic value in this population. The aim of the present study was to clarify the prevalence and associated cardiovascular risk factors of mild aICAS and determine its prognostic value for overall and cardiovascular mortality in patients with hypertension.</p><p><strong>Methods: </strong>In total, 1,813 participants were evaluated for aICAS using computed tomographic angiography. The predictive effect of mild to severe aICAS on all-cause and cardiovascular mortality was evaluated using Kaplan-Meier survival curves and Cox regression analyses.</p><p><strong>Results: </strong>The prevalence rate of mild aICAS was 35.7%. Poorly controlled hypertension, in combination with diabetes and dyslipidemia, was associated with aICAS. Patients with aICAS had an independently significant increase in the risk of all-cause and cardiovascular death, with adjusted hazard ratios (HRs) for mild to severe stenosis ranging from 1.56 to 3.30 for all-cause death and from 2.48 to 6.38 for cardiovascular death. Among the patients with mild aICAS, only those with more than two stenoses had increased mortality after adjustment, with an HR of 2.44 (95% CI: 1.42-4.18) for total death and 4.49 (95% CI: 1.82-11.05) for cardiovascular death.</p><p><strong>Conclusions: </strong>A significant association between mild aICAS and mortality in stroke-free patients with hypertension was revealed. The results indicate that mild aICAS might be an imaging marker for cerebrovascular lesions in patients with hypertension and poor control of blood pressure and lipids in this population requires further research.</p>","PeriodicalId":7578,"journal":{"name":"American Journal of Hypertension","volume":" ","pages":"893-900"},"PeriodicalIF":3.2,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141722866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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