Evidence map›Paper›PMID 24781567›Full record

Trial reportAnesthesia and analgesia2014

Sedation depth during spinal anesthesia and survival in elderly patients undergoing hip fracture repair.

Charles H Brown, Andrew S Azman, Allan Gottschalk, Simon C Mears, Frederick E Sieber

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Anesthesia and analgesia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Interventions for preventing delirium in hospitalised non-ICU patients.The Cochrane database of systematic reviews · 2016
    Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Effect of anesthesiaBMJ open · 2017
    Trial
  8. Trial
  9. Article
  10. Article
  11. Article
  12. Sedation during regional anesthesia: less is more.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2022
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Charles H BrownFrom the *Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Medical Institutions; and †Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Andrew S Azman
Allan Gottschalk
Simon C Mears
Frederick E Sieber

Funding

A Strategy for Reduction of Postoperative Delirium in Elderly PatientsR01AG033615 · NIA · JOHNS HOPKINS UNIVERSITY · PI SIEBER, FREDERICK E · 2010 to 2014
$2.0M
The impact of impaired cerebral autoregulation on postoperative deliriumR03AG042331 · NIA · JOHNS HOPKINS UNIVERSITY · PI BROWN, CHARLES HUGH · 2012 to 2013
$158k
NIA NIH HHS 1 R01 AG033615-01A1NIA NIH HHS R01 AG033615NIA NIH HHS R03 AG042331
6 · The paper itself

Abstract

Low intraoperative Bispectral Index (BIS) values may be associated with increased mortality. In a previously reported trial to prevent delirium, we randomized patients undergoing hip fracture repair under spinal anesthesia to light (BIS >80) or deep (BIS approximately 50) sedation. We analyzed survival of patients in the original trial. Among all patients, mortality was equivalent across sedation groups. However, among patients with serious comorbidities (Charlson score >4), 1-year mortality was reduced in the light (22.2%) vs deep (43.6%) sedation group (hazard ratio [HR], 0.43; 95% confidence interval, 0.19-0.97; P = 0.04) during spinal anesthesia. Similarly, among patients with Charlson score >6, 1-year mortality was reduced in the light (28.6%) vs deep (52.6%) sedation group (HR 0.33; 95% confidence interval, 0.12-0.94; P = 0.04) during spinal anesthesia. Further research on reduced mortality after light sedation during spinal anesthesia is needed.

Indexed as

AgedAged, 80 and overAnesthesia, GeneralAnesthesia, SpinalDeep SedationDeliriumFemaleFollow-Up StudiesHip FracturesHumansKaplan-Meier EstimateMaleOrthopedic ProceduresPostoperative ComplicationsProcedural SedationSurvival Analysis

Identifiers

PMID24781567
PMCPMC4090014

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.