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Updated: Jun 1, 2026

Echocardiographic Assessment Using Subxiphoid-Only Examination for Hypotensive Patients
Published on: April 18, 2025
Non-Dipper Pattern is a Determinant of the Inappropriateness of Left Ventricular Mass in Essential Hypertensive
Bae Keun Kim1, Young-Hyo Lim, Hyung Tak Lee
1Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
Insights
The non-dipper blood pressure pattern is linked to inappropriately high left ventricular mass in hypertensive individuals. This finding highlights the importance of monitoring nocturnal blood pressure dipping for cardiovascular risk assessment.
Area of Science:
- Cardiology
- Hypertension Research
- Clinical Physiology
Background:
- Inappropriately high left ventricular mass (iLVM) is a known cardiovascular risk factor.
- Hypertensive patients with a non-dipper pattern exhibit greater mean left ventricular mass than dippers.
- The relationship between nocturnal dipping status and LV mass appropriateness requires further investigation.
Purpose of the Study:
- To investigate the association between nocturnal dipping patterns and the appropriateness of left ventricular mass in hypertensive patients.
- To determine if nocturnal dipping status is an independent predictor of inappropriately high left ventricular mass.
Main Methods:
- Retrospective analysis of 361 hypertensive patients with ambulatory blood pressure monitoring (ABPM) and echocardiography data.
- Left ventricular mass appropriateness assessed using the observed/predicted ratio (OPR) with a Korean-specific equation.
- Nocturnal dipping defined as the percentage fall in systolic blood pressure during nighttime compared to daytime.
Main Results:
- Non-dipper pattern was independently associated with inappropriately high left ventricular mass (odds ratio 2.134, p=0.021).
- Obesity (BMI >25 kg/m²) was also strongly associated with the non-dipper pattern (odds ratio 3.694, p<0.001).
- 24-hour systolic blood pressure, age, and body mass index were also significant determinants of OPR.
Conclusions:
- The non-dipper blood pressure pattern is an independent determinant of inappropriately high left ventricular mass in hypertensive patients.
- Obesity is also independently associated with the non-dipper pattern.
- Nocturnal dipping status should be considered in the cardiovascular risk assessment of hypertensive individuals.
Background And Objectives:
Inappropriately high left ventricular mass (iLVM) is known to be related to cardiovascular prognosis. A non-dipper pattern has a greater mean left ventricular (LV) mass than the dipper pattern in hypertensive patients. However, the appropriateness of LV mass in dipper or non-dipper patterns has not been adequately investigated. The aim of this study was to define the relationship between nocturnal dipping and the appropriateness of LV mass.
Subjects And Methods:
Using the ambulatory blood pressure monitoring (ABPM) database, the data of 361 patients who underwent ABPM and echocardiography was analyzed retrospectively. Appropriateness of LV mass was calculated as observed/predicted ratio of LV mass (OPR) using a Korean-specified equation. Nocturnal dipping was expressed as percent fall in systolic blood pressure (BP) during the night compared to the day.
Results:
Daytime, nighttime and 24 hours BP in hypertensive patients was 140.4±14.8 mmHg, 143.7±15.2 mmHg and 129.4±20.0 mmHg, respectively. OPR was 106.3±19.9% and nocturnal dipping was 10.2±10.9 mmHg. In a multiple linear regression model, 24 hours systolic BP (β=0.097, p=0.043) and nocturnal dipping (β=-0.098, p=0.046) were independent determinants of OPR as well as age (β=0.130, p=0.025) and body mass index (BMI) (β=0.363, p<0.001). Odds ratio of the non-dipper pattern was 2.134 for iLVM (p=0.021) and 3.694 for obesity (p<0.001; BMI >25 kg/m(2)).
Conclusion:
The non-dipper pattern is independently associated with iLVM in hypertensive patients as well as obesity.
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