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Completed

NCT Number: NCT01903382

Circadian, Weekly and Seasonal Variability of Postoperative Mortality and Morbidity (Zirkadianest)

Mortality is subject to cyclic variability: circadian, weekly, and seasonal. This has been shown for different populations, different diseases and in different countries, but not for surgical patients. Aim of this study is therefore to investigate the association between circadian, weekly, and seasonal effects time of surgery postoperative mortality of patients undergoing surgery and general anesthesia.

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Key information

Conditions

Postoperative Mortality and Morbidity

Sex eligibility

All sexes

Study type

Observational

Primary location

Department of Anesthesiology and Intensive Care Medicine Campus Charité Mitte and Campus Virchow-Klinikum, Charité - University Medicine

Berlin, State of Berlin, 13353, Germany

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

All Patients who underwent anesthesia within the study time period.

Exclusion criteria

none

Treatment and study plan

Primary outcomes

  1. Postoperative mortality

    Time frame: One year

    The primary objective of this study is to show associations between postoperative mortality and circadian, weekly and seasonal rhythms.

    Electronic patient charts are revised for complete hospital length of stay for time of surgery, co-morbidities, intra-operative data and all-cause in-hospital mortality

Secondary outcomes

  1. Hospital length of stay

    Time frame: One year

    The secondary objective of this is to show associations between hospital length of stay and circadian, weekly and seasonal rhythms. Electronic patient charts are revised for complete hospital length of stay for time of surgery, co-morbidities, intra-operative data and hospital length of stay

Sponsors and collaborators

Lead sponsor

Charite University, Berlin, Germany

Other

Registry information

Official study title

The Association Between Circadian, Weekly, and Seasonal Effects and Time of Surgery on Postoperative Morbidity and Mortality of Patients (Zirkadianest)

Important dates

Study start
2006
Primary completion
2014
Study completion
2014
First posted
Jul 19, 2013
Registry last updated
Nov 10, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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