Association of Plasma Melatonin Levels With Delirium

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

33 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-04-30

Study Completion Date

2011-01-31

Brief Summary

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Delirium is common complications in postoperative critically ill patients. However the mechanism of postoperative delirium is not well understood.The investigators designed a prospective observational study to investigate the association of perioperative plasma melatonin levels with postoperative delirium and general anesthesia. The investigators included 33 patients required intensive care more than 48 hours after sevoflurane anesthesia in an academic tertiary care hospital. The investigators measured plasma melatonin levels 4 times and assessed postoperative delirium using Confusion Assessment Method for the intensive care unit (CAM-ICU).

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Detailed Description

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Delirium is common complications in postoperative critically ill patients. Although the mechanism of postoperative delirium is not well understood, there are several studies to report alternation of plasma melatonin levels after general anesthesia and suggest the link between delirium and abnormal tryptophan-serotonin-melatonin metabolism. However, there are few studies to assess the association of perioperative plasma melatonin levels with postoperative delirium and/or general anesthetics.

The investigators designed a prospective observational study to investigate the association of perioperative plasma melatonin levels with postoperative delirium and general anesthesia. The investigators included 33 patients required intensive care more than 48 hours after sevoflurane anesthesia in an academic tertiary care hospital. The investigators measured plasma melatonin levels and assessed postoperative delirium using Confusion Assessment Method for the intensive care unit (CAM-ICU). The investigators compared perioperative plasma melatonin levels between patients with and without delirium, and assessed associations of patients' demographics and anesthesia with plasma melatonin levels.

Conditions

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Postoperative Delirium

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Delirium,Nondelirium

those with delirium and those without delirium

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* patients over 20 years of age who had undergone elective surgery with sevoflurane anesthesia and were expected to require postoperative intensive care for more than 48 hours