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The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity
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| Zeitschriftentitel: | Medical Principles and Practice |
|---|---|
| Personen und Körperschaften: | , , , , , , |
| In: | Medical Principles and Practice, 24, 2015, 5, S. 444-450 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
S. Karger AG
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| Schlagwörter: |
| author_facet |
Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan |
|---|---|
| author |
Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan |
| spellingShingle |
Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan Medical Principles and Practice The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity General Medicine |
| author_sort |
ozcan cetin, elif hande |
| spelling |
Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan 1011-7571 1423-0151 S. Karger AG General Medicine http://dx.doi.org/10.1159/000431362 <jats:p><b><i>Objective:</i></b> The aim of this research was to assess the relationship between mitral annular calcification (MAC) and whole blood viscosity (WBV). <b><i>Subjects and Methods:</i></b> A total of 184 patients with MAC and 133 patients without MAC were enrolled in the study. The WBV was calculated with a confirmed formulation using the hematocrit and total plasma protein at a low shear rate (LSR) and high shear rate (HSR). Early diastolic mitral annular velocity (Ea) and late diastolic mitral annular velocity (Aa) were measured using pulse Doppler tissue echocardiography. Pearson's correlation analysis was performed to assess the relationship between WBV and mitral annular motion velocities. The effects of different variables on the occurrence of MAC were assessed in univariate and multivariate logistic regression analysis. <b><i>Results:</i></b> In patients with MAC, WBV values were significantly higher at HSR (18.04 ± 0.84 vs. 17.25 ± 0.96 208 s<sup>-1</sup>, p < 0.001) and at LSR (78.0 ± 14.2 vs. 61.9 ± 17.1 0.5 s<sup>-1</sup>, p < 0.001). The WBV at HSR and LSR were significantly correlated with Ea (r = -0.477, p < 0.001; r = -0.385, p < 0.001, respectively) and Aa (r = -0.544, p < 0.001; r = -0.323, p < 0.001, respectively). Multivariate analysis showed that WBV of both shear rates was an independent predictor of MAC. Using the ROC curve, a cut-off value of 70.1 for WBV at LSR had a sensitivity of 83.7% and a specificity of 73.7% (AUC 0.785, p < 0.001) and a WBV cut-off value of 17.5 at HSR had a sensitivity of 79.6% and a specificity of 71.4% (AUC 0.761, p < 0.001) for the prediction of MAC. <b><i>Conclusion:</i></b> Patients with MAC had significantly higher WBV, which independently predicted the presence of MAC. WBV had an inverse correlation with mitral annular motion velocities, indicating that a higher WBV may lead to greater limitation in annular motion and, thus, more calcification.</jats:p> The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity Medical Principles and Practice |
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10.1159/000431362 |
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S. Karger AG, 2015 |
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S. Karger AG, 2015 |
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1011-7571 1423-0151 |
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Medical Principles and Practice |
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| title |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_unstemmed |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_full |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_fullStr |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_full_unstemmed |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_short |
The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_sort |
the forgotten variable of shear stress in mitral annular calcification: whole blood viscosity |
| topic |
General Medicine |
| url |
http://dx.doi.org/10.1159/000431362 |
| publishDate |
2015 |
| physical |
444-450 |
| description |
<jats:p><b><i>Objective:</i></b> The aim of this research was to assess the relationship between mitral annular calcification (MAC) and whole blood viscosity (WBV). <b><i>Subjects and Methods:</i></b> A total of 184 patients with MAC and 133 patients without MAC were enrolled in the study. The WBV was calculated with a confirmed formulation using the hematocrit and total plasma protein at a low shear rate (LSR) and high shear rate (HSR). Early diastolic mitral annular velocity (Ea) and late diastolic mitral annular velocity (Aa) were measured using pulse Doppler tissue echocardiography. Pearson's correlation analysis was performed to assess the relationship between WBV and mitral annular motion velocities. The effects of different variables on the occurrence of MAC were assessed in univariate and multivariate logistic regression analysis. <b><i>Results:</i></b> In patients with MAC, WBV values were significantly higher at HSR (18.04 ± 0.84 vs. 17.25 ± 0.96 208 s<sup>-1</sup>, p < 0.001) and at LSR (78.0 ± 14.2 vs. 61.9 ± 17.1 0.5 s<sup>-1</sup>, p < 0.001). The WBV at HSR and LSR were significantly correlated with Ea (r = -0.477, p < 0.001; r = -0.385, p < 0.001, respectively) and Aa (r = -0.544, p < 0.001; r = -0.323, p < 0.001, respectively). Multivariate analysis showed that WBV of both shear rates was an independent predictor of MAC. Using the ROC curve, a cut-off value of 70.1 for WBV at LSR had a sensitivity of 83.7% and a specificity of 73.7% (AUC 0.785, p < 0.001) and a WBV cut-off value of 17.5 at HSR had a sensitivity of 79.6% and a specificity of 71.4% (AUC 0.761, p < 0.001) for the prediction of MAC. <b><i>Conclusion:</i></b> Patients with MAC had significantly higher WBV, which independently predicted the presence of MAC. WBV had an inverse correlation with mitral annular motion velocities, indicating that a higher WBV may lead to greater limitation in annular motion and, thus, more calcification.</jats:p> |
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| author | Ozcan Cetin, Elif Hande, Cetin, Mehmet Serkan, Canpolat, Ugur, Kalender, Erol, Topaloglu, Serkan, Aras, Dursun, Aydogdu, Sinan |
| author_facet | Ozcan Cetin, Elif Hande, Cetin, Mehmet Serkan, Canpolat, Ugur, Kalender, Erol, Topaloglu, Serkan, Aras, Dursun, Aydogdu, Sinan, Ozcan Cetin, Elif Hande, Cetin, Mehmet Serkan, Canpolat, Ugur, Kalender, Erol, Topaloglu, Serkan, Aras, Dursun, Aydogdu, Sinan |
| author_sort | ozcan cetin, elif hande |
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| description | <jats:p><b><i>Objective:</i></b> The aim of this research was to assess the relationship between mitral annular calcification (MAC) and whole blood viscosity (WBV). <b><i>Subjects and Methods:</i></b> A total of 184 patients with MAC and 133 patients without MAC were enrolled in the study. The WBV was calculated with a confirmed formulation using the hematocrit and total plasma protein at a low shear rate (LSR) and high shear rate (HSR). Early diastolic mitral annular velocity (Ea) and late diastolic mitral annular velocity (Aa) were measured using pulse Doppler tissue echocardiography. Pearson's correlation analysis was performed to assess the relationship between WBV and mitral annular motion velocities. The effects of different variables on the occurrence of MAC were assessed in univariate and multivariate logistic regression analysis. <b><i>Results:</i></b> In patients with MAC, WBV values were significantly higher at HSR (18.04 ± 0.84 vs. 17.25 ± 0.96 208 s<sup>-1</sup>, p < 0.001) and at LSR (78.0 ± 14.2 vs. 61.9 ± 17.1 0.5 s<sup>-1</sup>, p < 0.001). The WBV at HSR and LSR were significantly correlated with Ea (r = -0.477, p < 0.001; r = -0.385, p < 0.001, respectively) and Aa (r = -0.544, p < 0.001; r = -0.323, p < 0.001, respectively). Multivariate analysis showed that WBV of both shear rates was an independent predictor of MAC. Using the ROC curve, a cut-off value of 70.1 for WBV at LSR had a sensitivity of 83.7% and a specificity of 73.7% (AUC 0.785, p < 0.001) and a WBV cut-off value of 17.5 at HSR had a sensitivity of 79.6% and a specificity of 71.4% (AUC 0.761, p < 0.001) for the prediction of MAC. <b><i>Conclusion:</i></b> Patients with MAC had significantly higher WBV, which independently predicted the presence of MAC. WBV had an inverse correlation with mitral annular motion velocities, indicating that a higher WBV may lead to greater limitation in annular motion and, thus, more calcification.</jats:p> |
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| imprint | S. Karger AG, 2015 |
| imprint_str_mv | S. Karger AG, 2015 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1, DE-L229 |
| issn | 1011-7571, 1423-0151 |
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| physical | 444-450 |
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| publishDateSort | 2015 |
| publisher | S. Karger AG |
| record_format | ai |
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| series | Medical Principles and Practice |
| source_id | 49 |
| spelling | Ozcan Cetin, Elif Hande Cetin, Mehmet Serkan Canpolat, Ugur Kalender, Erol Topaloglu, Serkan Aras, Dursun Aydogdu, Sinan 1011-7571 1423-0151 S. Karger AG General Medicine http://dx.doi.org/10.1159/000431362 <jats:p><b><i>Objective:</i></b> The aim of this research was to assess the relationship between mitral annular calcification (MAC) and whole blood viscosity (WBV). <b><i>Subjects and Methods:</i></b> A total of 184 patients with MAC and 133 patients without MAC were enrolled in the study. The WBV was calculated with a confirmed formulation using the hematocrit and total plasma protein at a low shear rate (LSR) and high shear rate (HSR). Early diastolic mitral annular velocity (Ea) and late diastolic mitral annular velocity (Aa) were measured using pulse Doppler tissue echocardiography. Pearson's correlation analysis was performed to assess the relationship between WBV and mitral annular motion velocities. The effects of different variables on the occurrence of MAC were assessed in univariate and multivariate logistic regression analysis. <b><i>Results:</i></b> In patients with MAC, WBV values were significantly higher at HSR (18.04 ± 0.84 vs. 17.25 ± 0.96 208 s<sup>-1</sup>, p < 0.001) and at LSR (78.0 ± 14.2 vs. 61.9 ± 17.1 0.5 s<sup>-1</sup>, p < 0.001). The WBV at HSR and LSR were significantly correlated with Ea (r = -0.477, p < 0.001; r = -0.385, p < 0.001, respectively) and Aa (r = -0.544, p < 0.001; r = -0.323, p < 0.001, respectively). Multivariate analysis showed that WBV of both shear rates was an independent predictor of MAC. Using the ROC curve, a cut-off value of 70.1 for WBV at LSR had a sensitivity of 83.7% and a specificity of 73.7% (AUC 0.785, p < 0.001) and a WBV cut-off value of 17.5 at HSR had a sensitivity of 79.6% and a specificity of 71.4% (AUC 0.761, p < 0.001) for the prediction of MAC. <b><i>Conclusion:</i></b> Patients with MAC had significantly higher WBV, which independently predicted the presence of MAC. WBV had an inverse correlation with mitral annular motion velocities, indicating that a higher WBV may lead to greater limitation in annular motion and, thus, more calcification.</jats:p> The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity Medical Principles and Practice |
| spellingShingle | Ozcan Cetin, Elif Hande, Cetin, Mehmet Serkan, Canpolat, Ugur, Kalender, Erol, Topaloglu, Serkan, Aras, Dursun, Aydogdu, Sinan, Medical Principles and Practice, The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity, General Medicine |
| title | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_full | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_fullStr | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_full_unstemmed | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_short | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| title_sort | the forgotten variable of shear stress in mitral annular calcification: whole blood viscosity |
| title_unstemmed | The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity |
| topic | General Medicine |
| url | http://dx.doi.org/10.1159/000431362 |