Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography
Prostacyclin is an in vivo bioactive substance that regulates renal blood flow (RBF). Information regarding how epoprostenol, a prostacyclin preparation, affects RBF in dogs is lacking. We investigated the effects of short-term epoprostenol administration on RBF in six healthy dogs under anesthesia...
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MDPI AG
2022-05-01
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| author | Kiwamu Hanazono Takaharu Itami Ikuto Hayasaka Kenjiro Miyoshi Ai Hori Keiko Kato Daiji Endoh |
| author_facet | Kiwamu Hanazono Takaharu Itami Ikuto Hayasaka Kenjiro Miyoshi Ai Hori Keiko Kato Daiji Endoh |
| author_sort | Kiwamu Hanazono |
| collection | DOAJ |
| description | Prostacyclin is an in vivo bioactive substance that regulates renal blood flow (RBF). Information regarding how epoprostenol, a prostacyclin preparation, affects RBF in dogs is lacking. We investigated the effects of short-term epoprostenol administration on RBF in six healthy dogs under anesthesia by administering it intravenously at human doses—2, 5, and 10 ng/kg/min for 20 min. RBF was evaluated before and during epoprostenol administration using pulsed Doppler ultrasonography, and renal perfusion was evaluated using contrast-enhanced ultrasonography. Effects on renal and systemic circulation were evaluated by measuring systolic arterial, mean arterial, diastolic arterial, pulmonary arterial, mean right atrial, and pulmonary capillary wedge pressures; heart rate; and cardiac output. Kruskal–Wallis and Bonferroni multiple comparison tests and Spearman’s rank correlation coefficient were used for statistical analyses. As epoprostenol dosage increased, the peak systolic and end diastolic velocity of the renal artery, maximum and minimum venous flow velocities of the interlobular and renal veins, and heart rate all tended to increase, although not significantly. Our results indicate that human-dose epoprostenol administration in dogs does not cause significant changes in renal or systemic circulation. However, the human doses used may have been too low to produce a clinical effect in dogs. |
| first_indexed | 2024-03-10T04:24:15Z |
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| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T04:24:15Z |
| publishDate | 2022-05-01 |
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| spelling | doaj.art-c9f8888bf02b4b9a9789a4f8d73a39b62023-11-23T07:43:24ZengMDPI AGAnimals2076-26152022-05-01129117510.3390/ani12091175Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced UltrasonographyKiwamu Hanazono0Takaharu Itami1Ikuto Hayasaka2Kenjiro Miyoshi3Ai Hori4Keiko Kato5Daiji Endoh6School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanSchool of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimach, Ebetsu 069-8501, Hokkaido, JapanProstacyclin is an in vivo bioactive substance that regulates renal blood flow (RBF). Information regarding how epoprostenol, a prostacyclin preparation, affects RBF in dogs is lacking. We investigated the effects of short-term epoprostenol administration on RBF in six healthy dogs under anesthesia by administering it intravenously at human doses—2, 5, and 10 ng/kg/min for 20 min. RBF was evaluated before and during epoprostenol administration using pulsed Doppler ultrasonography, and renal perfusion was evaluated using contrast-enhanced ultrasonography. Effects on renal and systemic circulation were evaluated by measuring systolic arterial, mean arterial, diastolic arterial, pulmonary arterial, mean right atrial, and pulmonary capillary wedge pressures; heart rate; and cardiac output. Kruskal–Wallis and Bonferroni multiple comparison tests and Spearman’s rank correlation coefficient were used for statistical analyses. As epoprostenol dosage increased, the peak systolic and end diastolic velocity of the renal artery, maximum and minimum venous flow velocities of the interlobular and renal veins, and heart rate all tended to increase, although not significantly. Our results indicate that human-dose epoprostenol administration in dogs does not cause significant changes in renal or systemic circulation. However, the human doses used may have been too low to produce a clinical effect in dogs.https://www.mdpi.com/2076-2615/12/9/1175anesthesiachronic kidney diseasecontrast-enhanced ultrasonographydogepoprostenolprostacyclin |
| spellingShingle | Kiwamu Hanazono Takaharu Itami Ikuto Hayasaka Kenjiro Miyoshi Ai Hori Keiko Kato Daiji Endoh Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography Animals anesthesia chronic kidney disease contrast-enhanced ultrasonography dog epoprostenol prostacyclin |
| title | Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography |
| title_full | Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography |
| title_fullStr | Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography |
| title_full_unstemmed | Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography |
| title_short | Evaluation of Renal Blood Flow in Dogs during Short-Term Human-Dose Epoprostenol Administration Using Pulsed Doppler and Contrast-Enhanced Ultrasonography |
| title_sort | evaluation of renal blood flow in dogs during short term human dose epoprostenol administration using pulsed doppler and contrast enhanced ultrasonography |
| topic | anesthesia chronic kidney disease contrast-enhanced ultrasonography dog epoprostenol prostacyclin |
| url | https://www.mdpi.com/2076-2615/12/9/1175 |
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