P-176: Impact of diurnal patterns of vascular resistance and compliance on blood pressure night fall
Underlying mechanisms of non-dipping fenomenon are under discussions in aspects of demographic and metabolic factors, daily activities, autonomic cardiovascular regulation. We aimed to investigate by means of 24-hour noninvasive pulse wave analyses possible differences in daytime and nighttime vascu...
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| Veröffentlicht in: | American journal of hypertension 2002-04, Vol.15 (S3), p.93A-93A |
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| creator | Golubev, Sergey A. Tsai, Jeffrey J. Mily, Maxim N. |
| description | Underlying mechanisms of non-dipping fenomenon are under discussions in aspects of demographic and metabolic factors, daily activities, autonomic cardiovascular regulation. We aimed to investigate by means of 24-hour noninvasive pulse wave analyses possible differences in daytime and nighttime vascular hemodynamics between essential hypertensives (EH) with and without sufficient nighttime BP fall. Ninenteen randomly selected untreated verified EH (11 males; aged (mean±SD) 37.9± 9.4 years; daytime SBP 156.1±15.3, daytime DBP 90.3±9.9 mmHg) underwent 24 hour ambulatory oscillometric BP and HR measurements (DynaPulse 5000A; Pulse Metric, Inc., USA) with systemic vascular (SV) and brachial artery compliance and resistance evaluation at each measurement by the previously validated pulse dynamics analysis technology. The vascular hemodynamics variables were compared between dippers (10 subjects) and non-dippers (9 subjects).In the sample investigated non-dippers were significantly older then dippers (44.4±5.8 vs. 32.0±8.2 years; p |
| doi_str_mv | 10.1016/S0895-7061(02)02527-X |
| format | Article |
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We aimed to investigate by means of 24-hour noninvasive pulse wave analyses possible differences in daytime and nighttime vascular hemodynamics between essential hypertensives (EH) with and without sufficient nighttime BP fall. Ninenteen randomly selected untreated verified EH (11 males; aged (mean±SD) 37.9± 9.4 years; daytime SBP 156.1±15.3, daytime DBP 90.3±9.9 mmHg) underwent 24 hour ambulatory oscillometric BP and HR measurements (DynaPulse 5000A; Pulse Metric, Inc., USA) with systemic vascular (SV) and brachial artery compliance and resistance evaluation at each measurement by the previously validated pulse dynamics analysis technology. The vascular hemodynamics variables were compared between dippers (10 subjects) and non-dippers (9 subjects).In the sample investigated non-dippers were significantly older then dippers (44.4±5.8 vs. 32.0±8.2 years; p<0.01), but didn’t differ in hypertension duration, BMI, 24-hour and daytime SBP and DBP. Non-dippers had significantly higher nighttime SV resistance (22.3±2.9 vs. 19.0±1.9 mmHg/L/min; p<0.01) but not systemic compliance or brachial artery parameters compared with dippers. After adjustment for age the difference in nighttime SV resistance disappeared. Thus, in the studied EH non-dippers differ from dippers by nighttime but not by daytime vascular hemodynamics with higher SV resistance during sleep, and were older. Relationships between aging and non-dipping status, reported also by others, seems to be associated with enhanced resistive vessels remodeling rather then with less daytime activity.</description><identifier>ISSN: 0895-7061</identifier><identifier>EISSN: 1941-7225</identifier><identifier>EISSN: 1879-1905</identifier><identifier>DOI: 10.1016/S0895-7061(02)02527-X</identifier><identifier>CODEN: AJHYE6</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Arterial Compliance ; Blood Pressure Monitoring ; Non-Dipping Phenomenon</subject><ispartof>American journal of hypertension, 2002-04, Vol.15 (S3), p.93A-93A</ispartof><rights>Copyright Nature Publishing Group Apr 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Golubev, Sergey A.</creatorcontrib><creatorcontrib>Tsai, Jeffrey J.</creatorcontrib><creatorcontrib>Mily, Maxim N.</creatorcontrib><title>P-176: Impact of diurnal patterns of vascular resistance and compliance on blood pressure night fall</title><title>American journal of hypertension</title><addtitle>AJH</addtitle><description>Underlying mechanisms of non-dipping fenomenon are under discussions in aspects of demographic and metabolic factors, daily activities, autonomic cardiovascular regulation. We aimed to investigate by means of 24-hour noninvasive pulse wave analyses possible differences in daytime and nighttime vascular hemodynamics between essential hypertensives (EH) with and without sufficient nighttime BP fall. Ninenteen randomly selected untreated verified EH (11 males; aged (mean±SD) 37.9± 9.4 years; daytime SBP 156.1±15.3, daytime DBP 90.3±9.9 mmHg) underwent 24 hour ambulatory oscillometric BP and HR measurements (DynaPulse 5000A; Pulse Metric, Inc., USA) with systemic vascular (SV) and brachial artery compliance and resistance evaluation at each measurement by the previously validated pulse dynamics analysis technology. The vascular hemodynamics variables were compared between dippers (10 subjects) and non-dippers (9 subjects).In the sample investigated non-dippers were significantly older then dippers (44.4±5.8 vs. 32.0±8.2 years; p<0.01), but didn’t differ in hypertension duration, BMI, 24-hour and daytime SBP and DBP. Non-dippers had significantly higher nighttime SV resistance (22.3±2.9 vs. 19.0±1.9 mmHg/L/min; p<0.01) but not systemic compliance or brachial artery parameters compared with dippers. After adjustment for age the difference in nighttime SV resistance disappeared. Thus, in the studied EH non-dippers differ from dippers by nighttime but not by daytime vascular hemodynamics with higher SV resistance during sleep, and were older. 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We aimed to investigate by means of 24-hour noninvasive pulse wave analyses possible differences in daytime and nighttime vascular hemodynamics between essential hypertensives (EH) with and without sufficient nighttime BP fall. Ninenteen randomly selected untreated verified EH (11 males; aged (mean±SD) 37.9± 9.4 years; daytime SBP 156.1±15.3, daytime DBP 90.3±9.9 mmHg) underwent 24 hour ambulatory oscillometric BP and HR measurements (DynaPulse 5000A; Pulse Metric, Inc., USA) with systemic vascular (SV) and brachial artery compliance and resistance evaluation at each measurement by the previously validated pulse dynamics analysis technology. The vascular hemodynamics variables were compared between dippers (10 subjects) and non-dippers (9 subjects).In the sample investigated non-dippers were significantly older then dippers (44.4±5.8 vs. 32.0±8.2 years; p<0.01), but didn’t differ in hypertension duration, BMI, 24-hour and daytime SBP and DBP. Non-dippers had significantly higher nighttime SV resistance (22.3±2.9 vs. 19.0±1.9 mmHg/L/min; p<0.01) but not systemic compliance or brachial artery parameters compared with dippers. After adjustment for age the difference in nighttime SV resistance disappeared. Thus, in the studied EH non-dippers differ from dippers by nighttime but not by daytime vascular hemodynamics with higher SV resistance during sleep, and were older. Relationships between aging and non-dipping status, reported also by others, seems to be associated with enhanced resistive vessels remodeling rather then with less daytime activity.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><doi>10.1016/S0895-7061(02)02527-X</doi></addata></record> |
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| source | Oxford University Press Journals All Titles (1996-Current); Alma/SFX Local Collection |
| subjects | Arterial Compliance Blood Pressure Monitoring Non-Dipping Phenomenon |
| title | P-176: Impact of diurnal patterns of vascular resistance and compliance on blood pressure night fall |
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