Genetic and Demographic Factors That Influence the Pain and Progress of Labor
調査の概要
詳細な説明
There is enormous variability among women in the progress of normal labor. Labor requires complex integrated interplay between the decidua, uterine cervix and myometrium that can take minutes, days or weeks to occur and is incompletely understood. Understanding the biological variables that underlie differences in labor progress has been hampered by the lack of appropriate models that allow sensitive statistical analysis. Identification of genetic and physiognomic factors that impact normal labor progress will allow for individualization of labor management and better use of societal resources.
Structural models of labor progress were first proposed by Friedman in the 1950s at Columbia University. Aspects of Friedman's model, such as the deceleration phase, have been debated since that time but Friedman's model allowed for identification and quantification of the latent and active phase of labor in populations. These concepts have been modified by the World Health Organization as the WHO Partogram, the use of which has resulted in reduced requirement of oxytocin and reduced incidence of cesarean section.
Dr. Flood's group has developed a continuous bi-exponential model of labor progress and sigmoidal model for labor pain that the investigators have statistically and experimentally validated in several independent databases. The investigators model can be used both prospectively in an individual labor and with large cohorts to identify variables that significantly affect the progress of labor.
The investigators have found in a previous work that parturients who carry G at the 27th amino acid beta-2 adrenergic receptors (β2AR) developed labor pain more rapidly that parturients with the common allele [1]. and the investigators also have found that catechol-O-methyltransferase (COMT) rs4633 genotype TT resulted in a slower latent phase rate, and oxytocin receptor rs53576 genotype GG transitioned to active labor earlier [2].
In this new project, the investigators are planning to use bigger data base, to detect further genes associations, and tested some pharmacogenetic variations that could explain the different response to same medications and doses among patients.
研究の種類
入学 (予想される)
連絡先と場所
研究場所
-
-
Virginia
-
Charlottesville、Virginia、アメリカ、22908
- 募集
- University of Virginia
-
副調査官:
- Abdullah S Terkawi, M.D.
-
コンタクト:
- Abdullah S Terkawi, MD
-
Charlottesville、Virginia、アメリカ、22903
- まだ募集していません
- University of Virginia
-
コンタクト:
- Abdullah S Terkawi, M.D.
- 電話番号:434-242-3145
- メール:asterkawi@virginia.edu
-
コンタクト:
- Marcia Birk
- メール:meb2w@virginia.edu
-
副調査官:
- Abdullah S Terkawi, M.D.
-
主任研究者:
- Marcel E Durieux, M.D., Ph.D
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Study participants will be women presenting in term labor.
- Patients of all ethnicities will be included.
- All subjects will be greater than or equal to 18 years of age and able to give consent.
Exclusion Criteria:
- Include preexisting pain syndromes or the regular taking of pain medications.
- Preterm birth (< 37 weeks) and preeclampsia.
- Cervical dilatation more than 6 cm
研究計画
研究はどのように設計されていますか?
デザインの詳細
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
|
Progress, Pain
|
Progress, Pain
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Labor progress variability
時間枠:We will monitor data from the entire period of labor, which may last from 1-30 hours
|
We will monitor data from the entire period of labor, which may last from 1-30 hours
|
二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Respond variability to different induction, augmentation and pain management medication Prostaglandine, Oxytocin, Epidural analgesia
時間枠:admission to hospital discharge ( est. 2-3 days)
|
admission to hospital discharge ( est. 2-3 days)
|
協力者と研究者
スポンサー
捜査官
- 主任研究者:Abdullah S Terkawi, M.D.、University of Virginia
- 主任研究者:Marcel E Durieux, M.D., Ph.D、University of Virginia
- 主任研究者:Pamela D Flood, M.D., Ph.D、Stanford University
出版物と役立つリンク
一般刊行物
- Terkawi AS, Jackson WM, Thiet MP, Hansoti S, Tabassum R, Flood P. Oxytocin and catechol-O-methyltransferase receptor genotype predict the length of the first stage of labor. Am J Obstet Gynecol. 2012 Sep;207(3):184.e1-8. doi: 10.1016/j.ajog.2012.06.079. Epub 2012 Jul 10.
- Terkawi AS, Jackson WM, Hansoti S, Tabassum R, Flood P. Polymorphism in the ADRB2 gene explains a small portion of intersubject variability in pain relative to cervical dilation in the first stage of labor. Anesthesiology. 2014 Jul;121(1):140-8. doi: 10.1097/ALN.0000000000000258.
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- 17054
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