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January 1, 2002Anaesthesia

Maternal cardiovascular consequences of positioning after spinal anaesthesia for Caesarean section: left 15° table tilt vs. left lateral

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Why the study?

Does a 15 degrees left table tilt position compared to a full left lateral position prevent aortic compression in healthy women undergoing elective Caesarean section after spinal anaesthesia?

Population

60 healthy women undergoing elective Caesarean section

Comparison

Measured 15 degrees left table tilt position for… vs Full left lateral position for a 15-min period…

Design

RCT, Randomly allocated

Follow-up

15 minutes

Authors

SRS. G. O. ReesCheltenham General HospitalJTJ. A. ThurlowUniversity of Wisconsin–MadisonIGI. C. GardnerOffice of the Registrar General & Census Commissioner

Discussion

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Implication

15° left tilt fails to prevent aortic compression versus full lateral after spinal anaesthesia for Caesarean section; challenges positioning guidelines and warrants trials in high-risk patients.

Structured PICO

Does a 15 degrees left table tilt position compared to a full left lateral position prevent aortic compression in healthy women undergoing elective Caesarean section after spinal anaesthesia?

P
Population
60 healthy women undergoing elective Caesarean section
I
Intervention
Measured 15 degrees left table tilt position for a 15-min period after spinal blockade
C
Comparator
Full left lateral position for a 15-min period after spinal blockade
O
Outcome
Arm and leg blood pressure, ephedrine requirements, symptoms, fetal heart rate, cord gases and Apgar scoressurrogate

Following spinal anaesthesia for Caesarean section, a 15-degree left table tilt position is associated with aortic compression compared to a full left lateral position.

Cite This Study

Rees et al. (2002) studied this question.

synapsesocial.com/papers/6a9eceb86fdb0dc73c916389https://doi.org/10.1046/j.1365-2044.2002.02325.x
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Also Consider

Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Is blood pressure the best parameter to evaluate volume preload in obstetric anaesthesia?2000 · 9 citations
  2. 2Measurements of Cardiac Stroke Volume in Various Body Positions in Pregnancy and during Caesarean Section: A Comparison Between Thermodilution and Impedance Cardiography1979 · 82 citations