相关实验视频

Updated: Jul 25, 2025

A New Hybrid Quantitative Evaluation Model for Axillary Junctional Hemorrhage in Swine

A New Hybrid Quantitative Evaluation Model for Axillary Junctional Hemorrhage in Swine

Published on: December 6, 2024

通过阴道分娩后的数量和计算产后血损失的比较

Hugo Madar¹, Loïc Sentilhes¹, François Goffinet²

¹Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France (Drs Madar and Sentilhes).

American journal of obstetrics & gynecology MFM

|June 25, 2023

概括

在产后出血评估中,量化血液损失测量低于计算血液损失. 这种差异随着血液损失的增加而增加,影响了产后出血的临床解释.

科学领域:

产科和妇科产科和妇科
孕产妇和胎儿医学孕产妇和胎儿医学
临床研究临床研究

背景情况:

在产后血液损失评估方法上缺乏共识,这挑战了文献的可比性.
使用体积技术的定量失血 (QBL) 有局限性,包括主观性和潜在偏差.
基于实验室参数的计算血液损失 (CBL) 提供了一个客观的方法,但需要进一步与QBL进行比较.

研究的目的:

用定量和计算方法比较阴道分娩后产后流血的分布.
根据每个评估方法来评估异常产后血流的发生率.

主要方法:

来自3个多中心随机对照试验的数据分析,涉及8341名阴道分娩后的个人.
量化血液损失用分级收集袋测量;计算的血液损失来源于周周部分血红素的变化.
多项式回归和斯皮尔曼相关性用于建模QBL和CBL之间的关联.

主要成果:

中位数QBL (100毫升) 显著低于中位数CBL (260毫升).
与CBL (32.3%) 相比,QBL (9.6%) 的异常血流 (≥500毫升) 的发生率明显较低.
QBL和CBL显示出显著但中度的相关性 (斯皮尔曼系数=0.44),在较高的失血量时差异越来越大.

结论:

在阴道分娩后,定量和计算的血液损失有中等的相关性,但不能互换.
临床医生必须认识到,QBL始终低于CBL,随着血液损失的增加,差异会扩大.

关键词:

输血输血输血输血输血计算出输血的时间.测量出血损失的情况.产后输血评估方法产后输血评估方法产后出血产后出血是什么通过阴道分娩.

更多相关视频

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

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

Published on: August 2, 2017

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System

Published on: September 20, 2018

相关概念视频

Urodynamic Studies: Uroflowmetry

Urodynamic Studies: Uroflowmetry

Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...

z Scores and Area Under the Curve

z Scores and Area Under the Curve

z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of...