Journals / Anadolu Kardiyoloji Dergisi / 2003 / Cilt: 3 - Sayı: 4

Normolipidemik hipertansif hastalarda ACE inhibitör tedavisine eklenen statin terapisinin kan basıncı kontrolüne ve endoteliyal fonksiyonlarına etkisi

Effect of statin therapy added to ACE-inhibitors on blood pressure control and endothelial functions in normolipidemic hypertensive patients

Pages
331–337
Publication Date
2022-10-10
DOI
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Baseline FMD was significantly impaired in overall patients with hypertension as compared with healthy controls (13 ± 8 vs. 24±8 %, P = 0.001).

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Endothelium-dependent vasodilatation is impaired in hypertension.
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Key Findings & Data:Methods: This randomized prospective study consisted of 56 patients with newly diagnosed essential hypertension.
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Conclusion & Impact:Baseline FMD was significantly impaired in overall patients with hypertension as compared with healthy controls (13 ± 8 vs. 24±8 %, P = 0.001).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Endothelium-dependent vasodilatation is impaired in hypertension. Statins have been shown to improve endothelial functions in hyperlipidemic subjects. We aimed to investigate the effect of statins on endothelium-dependent flow mediated dilatation (FMD) and blood pressure (BP) in normocholesterolemic hypertensive patients. Methods: This randomized prospective study consisted of 56 patients with newly diagnosed essential hypertension. All patients received angiotensin converting enzyme (ACE) inhibitor lisinopril (5 mg/day) as antihypertensive therapy, and half of them were randomized to simvastatin(20mg/day) irrespective of serum lipid levels. All subjects underwent brachial artery ultrasonographic examination for the measurement of FMD before randomization and at the end of 12 weeks treatment. Results: A total of 39 patients completed the study (21 patients in the statin + ACE inhibitor group, and 18 patients in the ACE-inhibitor alone group). Blood pressure levels were substantially reduced in both groups after treatment. In statin+ ACE-inhibitor group systolic pressure reduced by 23% (p=0.0001) and diastolic BP reduced by 23% (p=0.0001). In ACE-inhibitor alone group these ratios were 20% (p=0.001) and 21% (p=0.001), respectively. Meanwhile, pulse pressure (PP) decreased by 25% in statin+ ACE-inhibitor group (P=0.0001) and by 16% in ACE inhibitor-alone group (p=0.0051). Baseline FMD was significantly impaired in overall patients with hypertension as compared with healthy controls (13 ± 8 vs. 24±8 %, P = 0.001). After treatment FMD decreased by 23% in lisinopril alone group (p=0.054). There were no correlations between FMD improvement, LDL reduction, BP or PP changes in both groups. Conclusion: Addition of simvastatin to ACE-inhibitor treatment in newly diagnosed hypertensive patients with normal cholesterol levels, significantly reduced PP and facilitated BP control, but did not affect endothelium-dependent dilatation. Further long-term large scale studies are needed to clarify the effect of various statins on endothelial functions of either hypercholesterolemic or normocholesterolemic hypertensive patients.

Özet

Amaç: Hipertansiyonda endotel bağımlı vazodilatasyon (EBVD) bozulmaktadır. Statinlerin hiperlipidemik bireylerde endotel fonksiyonları üzerine olumlu etkileri gösterilmiştir. Bu çalışmada statin tedavisinin dislipidemisi olmayan hipertansif olgularda endotel fonksiyonları ve kan basıncı (KB) üzerine olan etkisi araştırılmıştır. Yöntem: Çalışmaya yeni esansiyel hipertansiyon tanısı almış ve daha önceden ilaç kullanmayan 56 olgu prospektif olarak alındı. Tüm olgulara antihipertansif olarak bir anjiyotensin dönüştürücü enzim inhibitörü (ACE-İ) olan lisinopril (5 mg/g) ile başlandı. Olguların yarısı ise lipid düzeylerinden bağımsız olarak simvastatin (20mg/g) tedavisine randomize edildi. Olgular 12 haftalık tedavi öncesi ve sonrasında yüksek rezolüsyonlu vasküler ultrasonografi (USG) (7.5 mHz problu) ile brakiyal arterlerinin reaktif hiperemiye (EBVD) ve ayrıca dil altı nitrogliserine (endotelden bağımsız vazodilatasyon) yanıt açısından değerlendirildiler. Bulgular: Çalışmayı 39 hasta tamamlayabildi (statin+ACE-İ grubunda 21 hasta ve tek başına ACE-İ alan grupta 18 hasta). Tedavi sonucunda her iki grupta da KB düzeylerinde yeterli düşme oldu. Statin+ACE-İ grubunda sistolik KB %23 (p=0.0001) ve diyastolik KB %23 (p=0.0001) azalırken, tek başına ACEI- İ alan grupta bu oranlar sırasıyla %20 (p=0.001) ve %21 (p=0.001) idi. Aynı zamanda nabız basıncı (NB) statin+ ACE-İ grubunda anlamlı azalmıştı (-%25, p=0.0001). Tek başına ACE-İ alan grupta ise NB azalması %16 (p=0.005) idi. Tüm hipertansif hastalarda bazal EBVD, sağlıklı kontrollere göre anlamlı derecede bozulmuştu (%13±8'e karşın %24±8, P=0.001). Tedavi sonrasında EBVD, sadece lisinopril alan grupta düzeldi (-%23, p=0.054), ancak bu düzelme istatistiksel olarak anlamlı değildi. Brakiyal arterlerinin reaktif hiperemideki değişimi LDL düzeylerindeki azalma, KB veya NB daki değişimlerle korelasyonu saptanmadı. Sonuç: Yeni tanı almış esansiyel hipertansiyonlu olup normal kolesterol düzeylerine sahip hastalarda ACE-İ tedavisine statin eklenmesi NB'nı anlamlı azaltırken, KB kontrolünü kolaylaştırmaktadır, ancak endotel bağımlı vazodilatasyona bir etkisi saptanmamıştır. Bununla birlikte çeşitli statinlerin endotel fonksiyonlarına olan etkisine açıklık getirmek için gerek normo-kolesterolemik gerekse hiperkolesterolemik hipertansiflerde daha geniş ve uzun dönem çalışmalara gereksinim vardır.

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Cite This Article

KAYIKÇIOĞLU, M., CAN, L., PAYZİN, S., DANAOĞLU, Z., KÜLTÜRSAY, H. (2022). Normolipidemik hipertansif hastalarda ACE inhibitör tedavisine eklenen statin terapisinin kan basıncı kontrolüne ve endoteliyal fonksiyonlarına etkisi. Anadolu Kardiyoloji Dergisi, Cilt: 3 - Sayı: 4, 331–337. https://ajindex.com/articles/437533

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