scholarly journals Risk factors for postoperative delirium and subsyndromal delirium in older surgical patients in the general ward: a prospective observational study

2020 ◽  
Author(s):  
Maya Kanno ◽  
Mana Doi ◽  
Kazumi Kubota ◽  
Yuka Kanoya

Abstract Background Postoperative delirium (POD) among older patients is a common, serious disease and is associated with a high incidence of negative outcomes. For early detection of POD and subsyndromal delirium (SSD), this study was conducted to identify risk factors of POD and SSD in older patients in a general ward who were scheduled for surgery. Methods This was a prospective observational study. Study participants were older than 65 years, underwent urology surgery, and were hospitalized in the general ward between April and September 2019. Both POD and SSD were assessed by using the Confusion Assessment Method on the preoperative day, the day of surgery, and postoperative days 1–3. Personal characteristics, clinical data, cognitive function, physical functions, laboratory test results, medication use, type of surgery and anesthesia, and use of restraints were collected from medical records. Univariate and multivariate analyses were conducted to identify the risk factors for POD and SSD. Results A total of 101 participants (mean age 74.9 years) were enrolled; 19 (18.8%) developed POD and SSD. The use of bed sensors (odds ratio 10.2, p = .001) and preoperative level of C-reactive protein (CRP; odds ratio 1.5, p = .054) were identified as risk factors for POD and SSD. Conclusions POD and SSD among older patients in general wards were related to bed sensor use and the preoperative CRP level. Therefore, this study suggests that in order prevent POD and SSD for older patients in general wards, it is necessary to avoid bed sensor use as restraints and to assess the preoperative CRP level.

2020 ◽  
Author(s):  
Maya Kanno ◽  
Mana Doi ◽  
Kazumi Kubota ◽  
Yuka Kanoya

Abstract Background: Postoperative delirium (POD) among older patients is a common, serious disease and is associated with a high incidence of negative outcomes. For early detection of POD and subsyndromal delirium (SSD), this study was conducted to identify risk factors of POD and SSD in older patients who were scheduled for surgery in a surgical ward.Methods: This was a prospective observational study. Study participants were older than 65 years, underwent urology surgery, and were hospitalized in the surgical ward between April and September 2019. Both POD and SSD were assessed by using the Confusion Assessment Method (CAM) on the preoperative day, the day of surgery, and postoperative days 1–3 by the surgical ward nurses. SSD was defined as the presence of one or more CAM criteria and the absence of a diagnosis of delirium based on the CAM algorithm. Personal characteristics, clinical data, cognitive function, physical functions, laboratory test results, medication use, type of surgery and anesthesia, and use of physical restraint were collected from medical records. Logistic regression analyses were conducted to identify the risk factors for POD and SSD.Results: A total of 101 participants (mean age 74.9 years) were enrolled; 19 (18.8%) developed POD and SSD. The use of bed sensors (odds ratio 10.2, p=.001) were identified as risk factors for POD and SSD.Conclusions: Our study shows that the use of bed sensors might be related to the development of POD and SSD among older patients in surgical wards.


PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255607
Author(s):  
Maya Kanno ◽  
Mana Doi ◽  
Kazumi Kubota ◽  
Yuka Kanoya

Postoperative delirium (POD) and subsyndromal delirium (SSD) among older patients is a common, serious condition associated with a high incidence of negative outcomes. However, there are few accurate methods for the early detection of POD and SSD in surgical wards. This study aimed to identify risk factors of POD and SSD in older patients who were scheduled for surgery in a surgical ward. This was a prospective observational study. Study participants were older than 65 years, underwent urology surgery, and were hospitalized in the surgical ward between April and September 2019. Delirium symptoms were assessed using the Confusion Assessment Method (CAM) on the preoperative day, the day of surgery, and postoperative days 1–3 by the surgical ward nurses. SSD was defined as the presence of one or more CAM criteria and the absence of a diagnosis of delirium based on the CAM algorithm. Personal characteristics, clinical data, cognitive function, physical functions, laboratory test results, medication use, type of surgery and anesthesia, and use of physical restraint and bed sensor were collected from medical records. Multiple logistic regression analyses were conducted to identify the risk factors for both POD and SSD. A total of 101 participants (mean age 74.9 years) were enrolled; 19 (18.8%) developed POD (n = 4) and SSD (n = 15). The use of bed sensors (odds ratio 10.2, p = .001) was identified as a risk factor for both POD and SSD. Our findings suggest that the use of bed sensors might be related to the development of both POD and SSD among older patients in surgical wards.


Medicina ◽  
2020 ◽  
Vol 56 (3) ◽  
pp. 104
Author(s):  
Thomas H. Ottens ◽  
Iris E.C. Sommer ◽  
Marieke J. Begemann ◽  
Maya Schutte ◽  
Maarten Jan Cramer ◽  
...  

Background and Objective: Hallucinations after cardiac surgery can be a burden, but their prevalence and phenomenology have not been studied well. Risk factors for postoperative hallucinations, as well as their relation to delirium are unclear. We aimed to study the prevalence and phenomenology of hallucinations after cardiac surgery, and to study the association between hallucinations and delirium in this population. Materials and Methods: We used the Questionnaire for Psychotic Experiences to detect hallucinations in cardiac surgery patients and a control group of cardiology outpatients. We assessed postoperative delirium with validated instruments. Risk factors for postoperative hallucinations and the association between hallucinations and delirium were analysed using logistic regression. Results: We included 201 cardiac surgery patients and 99 cardiology outpatient controls. Forty-four cardiac surgery patients (21.9%) experienced postoperative hallucinations in the first four postoperative days. This was significantly higher compared to cardiology outpatient controls (n = 4, 4.1%, p < 0.001). Visual hallucinations were the most common type of hallucinations in cardiac surgery patients, and less common in outpatient controls. Cardiac surgery patients who experienced hallucinations were more likely to also have delirium (10/44, 22.7%) compared to patients without postoperative hallucinations (16/157, 10.2% p = 0.03). However, the majority of patients with postoperative hallucinations (34/44, 77.3%) did not develop delirium. Conclusion: After cardiac surgery, hallucinations occurred more frequently than in outpatient controls. Hallucinations after cardiac surgery were most often visual in character. Although postoperative hallucinations were associated with delirium, most patients with hallucinations did not develop delirium.


2014 ◽  
Vol 1 (6) ◽  
pp. 437-443 ◽  
Author(s):  
Jane S Saczynski ◽  
Sharon K Inouye ◽  
Cyrus M Kosar ◽  
Doug Tommet ◽  
Edward R Marcantonio ◽  
...  

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 449.1-449
Author(s):  
S. Mizuki ◽  
K. Horie ◽  
K. Imabayashi ◽  
K. Mishima ◽  
K. Oryoji

Background:In the idividuals with genetic and enviromental risk factors, immune events at mucosal surfaces occur and may precede systemic autoimmunity. Anti-citrullinated protein antibodies (ACPA) are present in the serum for an average of 3-5 years prior to the onset of rheumatoid arthritis (RA) during an asymptomatic period. In ACPA-positivite individuals, the additional presence of RA-related risk factors appears to add significant power for the development of RA. To date, there have been few reports in which clinical courses of ACPA-positive asymptomatic individuals were investigated prospectively.Objectives:To observe the clinical time course of ACPA-positive healthy population for the development of RA.Methods:Healthy volunteers without joint pain or stiffness, who attended the comprehensive health screening of our hospital, were enrolled in this prospective observational study. The serum ACPA levels were quantified by Ig-G anti-cyclic citrullinated peptide enzyme-linked immunosorbent assay with levels > 4.4 U/mL considered positive. ACPA-positive subjects were followed by rheumatologists of our department clinically or a questionnaire sent by mail for screening to detect arthritis.Results:5,971 healthy individuals without joint symptons were included. Ninty-two (1.5%) were positive for ACPA. Of these, 19 (20.7%) developed RA and two were suspected as RA by mail questionnaire. Their average age were 58-years, and women were 68%. The average duration between the date of serum sampling and diagnosis was 10.7 months. ACPA-positive individuals who developed to RA had higher serum ACPA and Ig-M rheumatoid factor levels than ACPA-positive individuals who did not (P value by Mann-Whitney U test: 0.002, 0.005, respectively).Conclusion:Among ACPA-positive asymptomatic individuals, 20% developed RA. The higher titer of ACPA and Ig-M rheumatoid factor levels are risk factors for devoloping RA.Disclosure of Interests:None declared


2009 ◽  
Vol 30 (7) ◽  
pp. 698-701 ◽  
Author(s):  
Stefania Bezzio ◽  
C. Scolfaro ◽  
R. Broglia ◽  
R. Calabrese ◽  
F. Mignone ◽  
...  

This prospective observational study was designed to assess the incidence of, risk factors for, and outcome of catheter-related bloodstream infection in children undergoing cardiac surgery. A staff specifically trained to handle the central venous catheters with proper aseptic techniques and an appropriate patient to medical staff ratio remain the most effective measures to prevent this infection.


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