Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Fetal Circulation01:14

Fetal Circulation

1.0K
Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
1.0K
Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

16
The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
16
Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

369
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
369
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

852
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
852
Adrenergic Antagonists: ɑ and β-Receptor Blockers01:31

Adrenergic Antagonists: ɑ and β-Receptor Blockers

507
Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
507
Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

360
A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
360

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Episiotomy and Obstetric Anal Sphincter Injury Among Unassisted Vaginal Births: A Retrospective Cohort Study.

The Australian & New Zealand journal of obstetrics & gynaecology·2026
Same author

Episiotomy and Obstetric Anal Sphincter Injury in the Setting of Instrumental Vaginal Birth: A Retrospective Cohort Study.

The Australian & New Zealand journal of obstetrics & gynaecology·2026
Same author

Alpha-adrenergic mediated changes in blood pressure variability after hypoxia-ischaemia in preterm fetal sheep.

The Journal of physiology·2026
Same author

The physiology of thoracic duct pressure and flow: A review of the literature.

Physiological reports·2026
Same author

Shape variation of the human peritoneal cavity: a principal component analysis using computed tomography.

Surgical and radiologic anatomy : SRA·2026
Same author

Vascular Remodelling in COPD: An In Silico Tool to Represent Pulmonary Haemodynamics in Obstructive Lung Disease.

Annals of biomedical engineering·2025

相关实验视频

Updated: Jul 15, 2025

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

13.5K

孕妇对怀孕期间的位置变化产生的心血管反应.

Alys R Clark1, Hanna Fontinha2, John Thompson2

  • 1Auckland Bioengineering Institute, University of Auckland, Auckland 1010, New Zealand.

Biology
|September 28, 2023
PubMed
概括

怀孕显著改变了母亲的心血管自主反应,特别是随着位置的变化. 这些反应稳定了产后,但显示了持久的差异,影响了母亲和胎儿的健康.

关键词:
自主控制自主控制自主控制血液的流动,血液的流动.适应心血管系统的情况.磁共振成像技术的使用怀孕 怀孕 怀孕 怀孕 怀孕

更多相关视频

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound 30/45MHZ System
07:34

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound 30/45MHZ System

Published on: May 5, 2018

11.7K
The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
12:17

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo

Published on: August 2, 2017

10.7K

相关实验视频

Last Updated: Jul 15, 2025

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

13.5K
Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound 30/45MHZ System
07:34

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound 30/45MHZ System

Published on: May 5, 2018

11.7K
The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
12:17

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo

Published on: August 2, 2017

10.7K

科学领域:

  • 心血管生理学心血管生理学
  • 自主神经系统的自主神经系统
  • 怀孕适应 怀孕适应

背景情况:

  • 孕妇的心血管系统在怀孕期间发生显著的变化,以支持胎儿的发育和哺乳.
  • 维持心血管平衡需要自主反应的适应.
  • 了解这些变化对于母亲和胎儿的健康至关重要.

研究的目的:

  • 在整个怀孕和产后期间纵向研究母亲的心血管自主反应.
  • 评估母亲定位对心血管自主功能的影响.
  • 探索母体位置,血液动力学参数和下静脉压缩之间的关系.

主要方法:

  • 在正常妊娠期间对母亲心血管自主反应的纵向研究.
  • 在时间和频率领域分析心率变化 (HRV).
  • 在怀孕后期对姿势变化 (站立,仰卧) 的心血管自主反应的评估.
  • 审查磁共振成像 (MRI) 证据对孕产妇和胎儿定位的影响.

主要成果:

  • 在怀孕期间,在左侧侧侧位置观察到HRV参数的显著变化.
  • 随着怀孕的进展,心血管自主反应对站立和卧卧的位置有显著的变化.
  • 在第三季度,60%的受试者在站立时表现出不稳定的心率反应,HRV的样本缩减少.
  • 产后,心血管功能在很大程度上恢复到怀孕前的水平,与无孕个体相比,高频HRV功率存在持久差异.
  • 仰卧姿势显示出与由下静脉压缩引起的母体血液动力学变化有明显的关联 (p=0.05).

结论:

  • 怀孕会导致母亲心血管自主调节的深刻,动态变化.
  • 母亲的位置显著影响心血管自主反应和血液动力学,特别是在怀孕晚期.
  • 这些发现增强了对与怀孕期间位置相关的生理压力因素及其对母亲和胎儿健康的影响的理解.