Ultrasonographic assessment of maternal cardiac function and peripheral circulation during normal gestation in dogs

Blanco, Paula Graciela; Tortora, M; Rodríguez, Raúl Ricardo; Arias, Daniel Osvaldo; Gobello, Cristina

doi:10.1016/j.tvjl.2010.08.013

Cited by 30 publications

(55 citation statements)

References 31 publications

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“…Results of the hemodynamic adaptations involving the cardiovascular system in mammals are very similar (DESAI et al, 2004;BLANCO et al, 2011). A pregnancy progresses, formation of the uteroplacental vascular system leads to increased vessel distensibility and compliance (NAUTRUP, 1998;Di SALVO et al, 2006;BLANCO et al, 2009) triggering decreased peripheral vascular resistance (PVR), which results in increased cardiac output (CO) and systolic volume (SV) in pregnancy (BLANCO et al, 2011), as well ventricular remodeling and changes in the renin-angiotensin-aldosterone system (GILSON et al, 1992).…”

Section: Gestational Hemodynamicsmentioning

confidence: 99%

“…In the target species, an increase can be identified from the third week of gestation (BLANCO et al, 2011) and this continues until lactation (OLSSON et al, 2003). In the literature it is stated that if an increase in heart rate is absent, as well as alterations in the volume or structure of the maternal heart, this can be a predictor of obstetric complications and these findings provides important information for prognosis (OLSSON et al, 2003;BLANCO et al, 2012a).…”

Section: Gestational Hemodynamicsmentioning

confidence: 99%

“…In this way, the study of maternal cardiovascular adaptations during pregnancy offers important information about maternal-fetal homeostasis and can prove to be a useful tool for the diagnosis and management of gestational complications in dogs (BLANCO et al, 2011).…”

Section: Gestational Hemodynamicsmentioning

confidence: 99%

“…Two-dimensional, M-mode, color and tissue Doppler echocardiography are all used in pregnant women to assess systolic and diastolic function (VALENSISE et al, 2000;FOK et al, 2006), demonstrating the changes in the shape of the left ventricle that occur during pregnancy to adapt to the vascular load resulting from the gestational process (VALENSISE et al, 2000;DESAI et al, 2004). Few studies have looked at these changes in dogs, and these have related to the reduction in afterload, the increase in systolic function and cardiac hypertrophy during the course of pregnancy (WILLIAMS et al, 2007;BLANCO et al, 2011;.…”

Section: Echocardiography Assessment During Gestationmentioning

confidence: 99%

“…Cardiac disease is the leading non-obstetric cause of maternal death in humans, which underlines the importance of assessing this system during pregnancy (LEWIS & Almeida et al DRIFE, 2004). In dogs, some small-scale studies have already identified and characterized changes in cardiac morphology during pregnancy (ABBOTT, 2010;BLANCO et al, 2011;; and although, obstetric complications are less common, there is a high prevalence in certain breeds, the principal cause of which is uterine inertia (STENGEL, 1997;MÜNNICH & KÜCHENMEISTER, 2009). Little is known of non-obstetric causes of gestational complications, although there are some reports to date that have cited signs of altered maternal cardiovascular function as being predictive of these complications in dogs .…”

Section: Introductionmentioning

confidence: 99%

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Hemodynamic gestational adaptation in bitches

et al. 2017

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Throughout pregnancy, maternal hemodynamic adaptation is needed to ensure proper uterine perfusion and fetal development. When the uteroplacental vascular system is formed, starting with reduced resistance to uterine arterial flow, this results in decreased total vascular resistance, an activation of neuroendocrine vasoactive peptides, an increase in circulating blood and changes in the cardiovascular system morphophysiology to respond to the increasing demands of uterine perfusion. There has been considerable study of hemodynamic adaptation in pregnant women and this assessment has become a diagnostic tool for fatal obstetric disorders. However, in bitches the available information in this regard is limited; therefore a parallel was drawn between other species of animals and women, in order to subsidize the paucity of information about this process and facilitate the understanding of maternal-fetal hemodynamic adaptation in pregnant bitches. This review and literature analysis aimed\ to discuss morphophysiological cardiovascular adaptations during pregnancy and the possible disorders that can affect this process in pregnant female dogs.

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Section: Gestational Hemodynamicsmentioning

confidence: 99%

Section: Gestational Hemodynamicsmentioning

confidence: 99%

Section: Gestational Hemodynamicsmentioning

confidence: 99%

Section: Echocardiography Assessment During Gestationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hemodynamic gestational adaptation in bitches

et al. 2017

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Doppler ultrasonographic assessment of uterine arteries during normal canine puerperium

Batista

Gobello

Corrada

et al. 2013

Animal Reproduction Science

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Influence of estrous cycle and gestation on cardiovascular system of bitches

Almeida

Uscátegui

Camacho

et al. 2018

Animal Reproduction Science

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The purpose of this study was to evaluate the consequences of the estrous cycle and gestation on the cardiovascular system of bitches evaluated through echocardiographic assessment. Fifteen healthy pregnant bitches aged 2 to 6 years and weighing 8.8 ± 2.5 kg were included in the study. Heart rate and blood pressure were clinically evaluated. M-mode, spectral, and tissue Doppler-echocardiography assessments were performed during the anestrous and estrous stages, every 15 days during pregnancy (15, 30, 45, and 60 days), and 45 days postpartum. The data for evaluated variables were submitted for statistical analysis. Heart rate (P = 0.286) and systolic blood pressure (P = 0.686) were not changed as a result of pregnancy or estrus, while ejection fraction (P = 0.0016) and fractional shortening (P = 0.00004) changed. The variables transmitral flow, isovolumetric relaxation time, aortic and pulmonary flow, and some variables related to myocardium movement obtained via tissue Doppler assessment varied (P < 0.05) among the reproductive periods studied. In conclusion, gestation resulted in changes in echocardiography variables, and consequently, on maternal hemodynamics, with myocardial contractility increasing during pregnancy, resulting in greater systolic efficiency and ventricular compliance.

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Ultrasonographic assessment of maternal cardiac function and peripheral circulation during normal gestation in dogs

Cited by 30 publications

References 31 publications

Hemodynamic gestational adaptation in bitches

Hemodynamic gestational adaptation in bitches

Doppler ultrasonographic assessment of uterine arteries during normal canine puerperium

Influence of estrous cycle and gestation on cardiovascular system of bitches

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