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Evaluation of aortic stiffness (aortic pulse-wave velocity) before and after elective abdominal aortic aneurysm repair procedures: a pilot study.

Paraskevas KI, Bessias N, Psathas C, Akridas K, Dragios T, Nikitas G, Andrikopoulos V, Mikhailidis DP, Kyriakides ZS - Open Cardiovasc Med J (2009)

Bottom Line: A second aortic PWV measurement was carried out 6 months postoperatively.The mean aortic PWV increased from 7.84 +/- 1.85 preoperatively to 10.08 +/- 1.57 m/sec 6 months postoperatively (mean change: 2.25; 95% confidence interval 1.4 to 3.1 m/sec; p<0.0001).The preprocedural PWV measurement did not correlate with AAA diameter (Spearman's rank correlation coefficient rho=0.12; p=0.59).

View Article: PubMed Central - PubMed

Affiliation: Department of Vascular Surgery, Red Cross Hospital, Athens, Greece.

ABSTRACT

Background: The main clinical criterion for abdominal aortic aneurysm (AAA) repair operations is an AAA diameter >/=5.5 cm. When AAAs increase in size, specific changes occur in the mechanical properties of the aortic wall. Pulse-wave velocity (PWV) has been used as an indicator of vascular stiffness. A low PWV may predict AAA rupture risk and is an early predictor of cardiovascular mortality.

Methods: We investigated the prognostic value of PWV before and after elective AAA repair procedures. Twenty four patients scheduled for an open AAA repair underwent a preoperative carotid-femoral aortic PWV measurement. A second aortic PWV measurement was carried out 6 months postoperatively.

Results: The mean aortic PWV increased from 7.84 +/- 1.85 preoperatively to 10.08 +/- 1.57 m/sec 6 months postoperatively (mean change: 2.25; 95% confidence interval 1.4 to 3.1 m/sec; p<0.0001). The preprocedural PWV measurement did not correlate with AAA diameter (Spearman's rank correlation coefficient rho=0.12; p=0.59).

Conclusions: Whether the increase in aortic PWV postoperatively suggests a decreased cardiovascular risk following AAA repair remains to be established. Aortic PWV should also be investigated as an adjunct tool for assessing AAA rupture risk.

No MeSH data available.


Related in: MedlinePlus

Measurement of the carotid-femoral aortic pulse-wave velocity using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). For details of the technique see text.
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Figure 1: Measurement of the carotid-femoral aortic pulse-wave velocity using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). For details of the technique see text.

Mentions: In brief, all subjects rested for 15-20 min while pulse rate and blood pressure were measured at the brachial artery using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). Measurements of carotid-femoral aortic PWV were performed 2 days before the procedure while the patients were in the supine position with a slight extension of the head and with the right lower limb in external rotation (Fig. 1). Two different pulse wave tracings were recorded simultaneously at 2 sites (at the base of the neck for the common carotid artery and over the right femoral artery) with 2 transducers (Fig. 2). Five consecutive measurements were performed in each patient and the mean carotid-femoral aortic PWV value was obtained.


Evaluation of aortic stiffness (aortic pulse-wave velocity) before and after elective abdominal aortic aneurysm repair procedures: a pilot study.

Paraskevas KI, Bessias N, Psathas C, Akridas K, Dragios T, Nikitas G, Andrikopoulos V, Mikhailidis DP, Kyriakides ZS - Open Cardiovasc Med J (2009)

Measurement of the carotid-femoral aortic pulse-wave velocity using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). For details of the technique see text.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2801854&req=5

Figure 1: Measurement of the carotid-femoral aortic pulse-wave velocity using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). For details of the technique see text.
Mentions: In brief, all subjects rested for 15-20 min while pulse rate and blood pressure were measured at the brachial artery using an automatic oscillometric device (Dinamap XL, Johnson & Johnson Inc, Raritan, New Jersey USA). Measurements of carotid-femoral aortic PWV were performed 2 days before the procedure while the patients were in the supine position with a slight extension of the head and with the right lower limb in external rotation (Fig. 1). Two different pulse wave tracings were recorded simultaneously at 2 sites (at the base of the neck for the common carotid artery and over the right femoral artery) with 2 transducers (Fig. 2). Five consecutive measurements were performed in each patient and the mean carotid-femoral aortic PWV value was obtained.

Bottom Line: A second aortic PWV measurement was carried out 6 months postoperatively.The mean aortic PWV increased from 7.84 +/- 1.85 preoperatively to 10.08 +/- 1.57 m/sec 6 months postoperatively (mean change: 2.25; 95% confidence interval 1.4 to 3.1 m/sec; p<0.0001).The preprocedural PWV measurement did not correlate with AAA diameter (Spearman's rank correlation coefficient rho=0.12; p=0.59).

View Article: PubMed Central - PubMed

Affiliation: Department of Vascular Surgery, Red Cross Hospital, Athens, Greece.

ABSTRACT

Background: The main clinical criterion for abdominal aortic aneurysm (AAA) repair operations is an AAA diameter >/=5.5 cm. When AAAs increase in size, specific changes occur in the mechanical properties of the aortic wall. Pulse-wave velocity (PWV) has been used as an indicator of vascular stiffness. A low PWV may predict AAA rupture risk and is an early predictor of cardiovascular mortality.

Methods: We investigated the prognostic value of PWV before and after elective AAA repair procedures. Twenty four patients scheduled for an open AAA repair underwent a preoperative carotid-femoral aortic PWV measurement. A second aortic PWV measurement was carried out 6 months postoperatively.

Results: The mean aortic PWV increased from 7.84 +/- 1.85 preoperatively to 10.08 +/- 1.57 m/sec 6 months postoperatively (mean change: 2.25; 95% confidence interval 1.4 to 3.1 m/sec; p<0.0001). The preprocedural PWV measurement did not correlate with AAA diameter (Spearman's rank correlation coefficient rho=0.12; p=0.59).

Conclusions: Whether the increase in aortic PWV postoperatively suggests a decreased cardiovascular risk following AAA repair remains to be established. Aortic PWV should also be investigated as an adjunct tool for assessing AAA rupture risk.

No MeSH data available.


Related in: MedlinePlus