The Trendelenburg Position and Cognitive Decline: A Case-Control Interventional Study Involving Healthy Volunteers.
JMIR Perioper Med
; 2(1): e11219, 2019 Jan 15.
Article
em En
| MEDLINE
| ID: mdl-33393930
ABSTRACT
BACKGROUND:
Postoperative cognitive decline (POCD) is defined as a new cognitive impairment arising after a surgical intervention. Aspects of cognitive function can be assessed using various validated cognitive function tests including the N-back task, the Stroop task, and the lexical decision-making task (LDT). There is some concern that prolonged Trendelenburg positioning during laparoscopic colorectal surgery may cause POCD.OBJECTIVE:
The objective of this study was to assess the effect of time spent in the Trendelenburg position on cognitive function.METHODS:
Volunteers were placed in the Trendelenburg position for 3 hours and, then, supine for 30 minutes. Validated cognitive function tests including 1-, 2-, and 3-back tasks, Stroop test, and LDT were performed at baseline and every 30 minutes after Trendelenburg positioning. Cognitive decline was defined per the International Study of Postoperative Cognitive Dysfunction trial a decrease in accuracy from the volunteers' baseline or an increase in response time from the volunteers' baseline by >2 control group SDs.RESULTS:
We recruited 15 healthy volunteers (8 males, 7 females) with an average age of 69 years (range 57-81) and average body mass index of 27.7 kg/m2 (range 20.9-33). Accuracy remained within 2 SDs at all time points. An increase in response time did occur, and of 15 participants, 3 (20%) showed cognitive decline in the Trendelenburg position after 30 minutes, 4 (27%) after 1 hour, 5 (33%) after 90 minutes, 4 (27%) after 120 and 150 minutes, and 6 (40%) after 180 minutes. On moving to a supine position, 33% (5/15) participants showed cognitive decline.CONCLUSIONS:
The results of this study indicate that Trendelenburg positioning leads to cognitive decline. This may have implications for patients undergoing prolonged Trendelenburg positioning during laparoscopic colorectal surgery.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Observational_studies
Idioma:
En
Revista:
JMIR Perioper Med
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Reino Unido