Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of estrous cycle and gestation on cardiovascular system of bitches

Full text
Author(s):
Almeida, Vivian T. [1] ; Uscategui, Ricardo A. R. [1] ; Camacho, Aparecido A. [1] ; Sousa, Marlos G. [2] ; Santos, Victor J. C. [1] ; Maronezi, Marjury C. [1] ; Vicente, Wilter R. R. [3] ; Feliciano, Marcus A. R. [4, 5]
Total Authors: 8
Affiliation:
[1] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Vet Clin & Surg, Campus Jaboticabal, Sao Paulo - Brazil
[2] Univ Fed Parana UFPR, Dept Vet Med, Campus Curitiba, Curitiba, Parana - Brazil
[3] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Anim Reprod, Cdmpus Jaboticabal, Sao Paulo - Brazil
[4] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Program Post Grad, Campus Jaboticabal, Sao Paulo - Brazil
[5] Univ Fed Reconcavo Bahia, Sect Diagnost Imaging, Cruz das Almas - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Animal Reproduction Science; v. 192, p. 35-43, MAY 2018.
Web of Science Citations: 0
Abstract

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. (AU)

FAPESP's process: 12/16635-2 - Elastography, contrast enhanced ultrasonography and Doppler as diagnostic of method of the mammary neoplasm, prostatic and testicular diseases in canines
Grantee:Marcus Antônio Rossi Feliciano
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 10/16913-7 - Conventional ultrassonography and Dopplerflow maternal fetal prenatal in evaluation of pregnant bitches
Grantee:Marcus Antônio Rossi Feliciano
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 11/06011-9 - Conventional ultrasound and Doppler in maternal-fetal prenatal evaluation of pregnant bitches
Grantee:Wilter Ricardo Russiano Vicente
Support Opportunities: Regular Research Grants