Evidence map›Paper›PMID 28008258›Full record

ArticleNeuropsychiatric disease and treatment2016

Incidence, risk factors, and phenomenological characteristics of postoperative delirium in patients receiving intravenous patient-controlled analgesia: a prospective cohort study.

Yao Tsung Lin, Kuo Mao Lan, Li-Kai Wang, Chin-Chen Chu, Su-Zhen Wu, Chia-Yu Chang, Jen-Yin Chen

Open access · goldAbstract read
In one paragraph

Article in Neuropsychiatric disease and treatment, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 21% of its field
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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 17 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Yao Tsung LinDepartment of Anesthesiology.
Kuo Mao LanDepartment of Anesthesiology.
Li-Kai WangDepartment of Anesthesiology.
Chin-Chen ChuDepartment of Anesthesiology.
Su-Zhen WuDepartment of Anesthesiology.
Chia-Yu ChangDepartment of Neurology, Chi Mei Medical Center.
Jen-Yin ChenDepartment of Anesthesiology; Department of the Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
Chi Mei Medical Center · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntravenous patient-controlled analgesia (IVPCA) is a common method of relieving pain which is a risk factor of postoperative delirium (POD). However, research concerning POD in IVPCA patients is limited.

objectiveWe aimed to determine the incidence, risk factors, and phenomenological characteristics of POD in patients receiving IVPCA.

methodsA prospective, cohort study was conducted in post-general anesthesia IVPCA patients aged ≥60 years. POD was measured by the Nursing Delirium Screening Scale (NuDESC; 0-10). Delirium, pain severity at rest and/or on movement, and side effects of IVPCA during 3 postoperative days were examined twice-daily by the acute pain service team. Pain severity is measured by an 11-point verbal numerical rating scale (11-point VNRS) (0-10). An 11-point VNRS >3 was considered inadequate pain relief. If POD (detected by NuDESC ≥1) is suspected, consulting a neurologist or a psychiatrist to confirm suspected POD is required.

resultsIn total, 1,608 patients were included. The incidence rate of POD was 2.2%. Age ≥70 years and American Society of Anesthesiologists physical status >III were the risk factors of POD in IVPCA patients. Approximately three-quarters of all POD cases occurred within the first 2 postoperative days. For pain at rest, patients with inadequate pain relief had significantly greater rates of POD than patients with adequate pain relief (day 1, 8.4% vs 1.5%,

conclusionThe incidence rate of POD in IVPCA patients was low. Further research is warranted concerning POD and IVPCA pain management.

Indexed as

patient-controlled analgesiapostoperative analgesiapostoperative delirium

Identifiers

PMID28008258
PMCPMC5167477
OpenAlexW2564657602

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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.