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Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients
BACKGROUND AND OBJECTIVES: The aim of this study was to evaluate the effects of an L- and T-type calcium channel blocker (CCB) on 24-hour systolic blood pressure (24-hour SBP) and heart rate (24-hour HR) profiles in essential hypertensive patients. SUBJECTS AND METHODS: Thirty-seven consecutive pati...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Korean Society of Cardiology
2012
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341419/ https://www.ncbi.nlm.nih.gov/pubmed/22563335 http://dx.doi.org/10.4070/kcj.2012.42.4.231 |
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author | Komukai, Masae Tsutsumi, Takeshi Ebado, Mio Takeyama, Youichi |
author_facet | Komukai, Masae Tsutsumi, Takeshi Ebado, Mio Takeyama, Youichi |
author_sort | Komukai, Masae |
collection | PubMed |
description | BACKGROUND AND OBJECTIVES: The aim of this study was to evaluate the effects of an L- and T-type calcium channel blocker (CCB) on 24-hour systolic blood pressure (24-hour SBP) and heart rate (24-hour HR) profiles in essential hypertensive patients. SUBJECTS AND METHODS: Thirty-seven consecutive patients were enrolled in this study. The 24-hour SBP and HR were recorded before and after treatment with efonidipine (L- and T-type CCB, 40 mg), after waking. Changes in 24-hour SBP and HR and the diurnal to nocturnal SBP ratio were measured. The best-fit curves of changes in SBP and HR were depicted using a periodic function. RESULTS: The mean 24-hour SBP and HR decreased significantly after treatment. The diurnal to nocturnal SBP ratio in dipper-type hypertension cases decreased from 16.7±6.1% to 8.3±9.8% (p<0.05), whereas in non-dipper hypertension cases, it increased from 2.3±2.9% to 7.7±5.1% (p<0.01). The antihypertensive effect was minimal at 5.0 hours after drug administration and it slowly recovered at a constant rate (2.1 mm Hg/h) over 12 hours in dipper cases. The median 24-hour changes in HR in the dipper and non-dipper cases were -2.3/min and -5.4/min, respectively. A continuous reduction in the change in HR was seen from 3.5 to 23 hours after drug administration. CONCLUSION: The antihypertensive action of efonidipine was characterized by a slow recovery of the SBP decrease at a constant rate (2.1 mm Hg/h) and a non-administration time dependent reduction in 24-hour HR. |
format | Online Article Text |
id | pubmed-3341419 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | The Korean Society of Cardiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-33414192012-05-04 Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients Komukai, Masae Tsutsumi, Takeshi Ebado, Mio Takeyama, Youichi Korean Circ J Original Article BACKGROUND AND OBJECTIVES: The aim of this study was to evaluate the effects of an L- and T-type calcium channel blocker (CCB) on 24-hour systolic blood pressure (24-hour SBP) and heart rate (24-hour HR) profiles in essential hypertensive patients. SUBJECTS AND METHODS: Thirty-seven consecutive patients were enrolled in this study. The 24-hour SBP and HR were recorded before and after treatment with efonidipine (L- and T-type CCB, 40 mg), after waking. Changes in 24-hour SBP and HR and the diurnal to nocturnal SBP ratio were measured. The best-fit curves of changes in SBP and HR were depicted using a periodic function. RESULTS: The mean 24-hour SBP and HR decreased significantly after treatment. The diurnal to nocturnal SBP ratio in dipper-type hypertension cases decreased from 16.7±6.1% to 8.3±9.8% (p<0.05), whereas in non-dipper hypertension cases, it increased from 2.3±2.9% to 7.7±5.1% (p<0.01). The antihypertensive effect was minimal at 5.0 hours after drug administration and it slowly recovered at a constant rate (2.1 mm Hg/h) over 12 hours in dipper cases. The median 24-hour changes in HR in the dipper and non-dipper cases were -2.3/min and -5.4/min, respectively. A continuous reduction in the change in HR was seen from 3.5 to 23 hours after drug administration. CONCLUSION: The antihypertensive action of efonidipine was characterized by a slow recovery of the SBP decrease at a constant rate (2.1 mm Hg/h) and a non-administration time dependent reduction in 24-hour HR. The Korean Society of Cardiology 2012-04 2012-04-26 /pmc/articles/PMC3341419/ /pubmed/22563335 http://dx.doi.org/10.4070/kcj.2012.42.4.231 Text en Copyright © 2012 The Korean Society of Cardiology http://creativecommons.org/licenses/by-nc/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Komukai, Masae Tsutsumi, Takeshi Ebado, Mio Takeyama, Youichi Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title | Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title_full | Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title_fullStr | Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title_full_unstemmed | Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title_short | Effect of an L- and T-Type Calcium Channel Blocker on 24-Hour Systolic Blood Pressure and Heart Rate in Hypertensive Patients |
title_sort | effect of an l- and t-type calcium channel blocker on 24-hour systolic blood pressure and heart rate in hypertensive patients |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341419/ https://www.ncbi.nlm.nih.gov/pubmed/22563335 http://dx.doi.org/10.4070/kcj.2012.42.4.231 |
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