کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3971549 1256769 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The intrauterine to intra-arterial pressure ratio: a new parameter for the study of uterine contractility physiology
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی زنان، زایمان و بهداشت زنان
پیش نمایش صفحه اول مقاله
The intrauterine to intra-arterial pressure ratio: a new parameter for the study of uterine contractility physiology
چکیده انگلیسی
The objective of the study was to examine the uterine contractions and the arterial perfusion pressure changes after application of oxytocin, endothelin 1, prostaglandins PGE1, PGE2 and PGF2α, in order to identify the substance with the greatest intrauterine pressure (IUP)/intra-arterial pressure (IAP) ratio, which means the substance most suitable for inducing uterine contractility without raising the systemic vascular pressure. Increasing doses of oxytocin, endothelin 1, PGE1, PGE2 and PGF2α were applied as bolus injection through the uterine artery of perfused swine uteri and the intrauterine and intra-arterial pressure rises were recorded. All substances showed a significant cervicofundic pressure gradient and, with the exception of PGF2α, the uterine peristalsis moved towards the cervix uteri. The perfusion pressure after application of oxytocin, PGE1, PGE2 and PGF2α reached a maximum value and started to decrease, whereas endothelin 1 caused a continuous increase in the perfusion pressure. Endothelin 1 showed the lowest IUP/IAP ratio and oxytocin the greatest. In conclusion, the IUP/IAP ratio provides a promising new parameter for the study of uterine contractility physiology. Besides oxytocin, PGE2 and PGF2α emerged as the best candidate substances to improve uterine contractility without raising the intra-arterial pressure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reproductive BioMedicine Online - Volume 20, Issue 3, March 2010, Pages 430-436
نویسندگان
, , , , , , ,