Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
May 1, 1998Critical Care Medicine

Following the arterial switch operation, neonates exhibited impaired left ventricular performance and decreased isovolumic relaxation time compared with normal data (p < 0.001).

View Full Paper
Ask AI
Bookmark
Share

Why the study?

Does the arterial switch operation alter postoperative left ventricular mechanics in neonates with transposition of the great arteries?

Population

9 neonates with transposition of the great arteries undergoing the arterial switch operation within the…

Comparison

Arterial switch operation (ASO) vs Normal age- and body surface area-adjusted…

Design

Cohort

Follow-up

48 hours

Key result

Following the arterial switch operation, neonates exhibited impaired left ventricular performance and decreased isovolumic relaxation time compared with normal data (p < 0.001).

Authors

RBRandall M. BryantRSRamona L. ShirleyDODavid A. Ott

Discussion

Loading...

Member takes

Overview

Following the arterial switch operation in neonates, left ventricular performance is impaired primarily due to a preload deficit and impaired compliance, rather than decreased contractility.

Study Design

Type

Cohort (n=9)

Structured PICO

Does the arterial switch operation alter postoperative left ventricular mechanics in neonates with transposition of the great arteries?

P
Population
9 neonates with transposition of the great arteries undergoing the arterial switch operation within the first week of life, evaluated up to 48 hours postoperatively.
E
Exposure
Arterial switch operation (ASO)
C
Comparator
Normal age- and body surface area-adjusted population
O
Outcome
Postoperative left ventricular mechanics (performance, contractility, afterload, preload, and compliance) measured at mean intervals of 3, 23, and 48 hours postoperativelysurrogate

Main Result

p-value: p=<.001

Following the arterial switch operation in neonates, left ventricular performance is impaired primarily due to a preload deficit and impaired compliance, rather than decreased contractility.

Cite This Study

Bryant et al. (1998) conducted a cohort in Transposition of the great arteries (n=9). Arterial switch operation (ASO) vs. Normal age- and body surface area-adjusted population was evaluated on Left ventricular performance (stress-shortening relation) and isovolumic relaxation time (IVRT) (p=<.001). Following the arterial switch operation, neonates exhibited impaired left ventricular performance and decreased isovolumic relaxation time compared with normal data (p < 0.001).

synapsesocial.com/papers/6a64e4bc5dee09b701c6c1b6https://doi.org/10.1097/00003246-199805000-00031
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Left ventricular remodelling in long-term survivors after the arterial switch operation for transposition of the great arteries2018 · 32 citations
  2. 2Assessment of left ventricular function long term after arterial switch operation for transposition of the great arteries by dobutamine stress echocardiography2004 · 79 citations
  3. 3Left ventricular mechanics after arterial switch operation2016 · 29 citations
  4. 4Left ventricular contractile reserve after arterial switch operation for complete transposition of the great arteries: an exercise echocardiographic study2012 · 24 citations
  5. 5Myocardial performance after arterial switch operation for transposition of the great arteries with intact ventricular septum.1988 · 91 citations