Dataset Information

Delirium in older patients undergoing aortic valve replacement: incidence, predictors, and cognitive prognosis.

ABSTRACT:

Background

Transcatheter aortic valve replacement is increasingly performed in frail older patients who were previously ineligible for a standard surgical procedure. The objectives of this study are to determine delirium incidence, predictors, and relationship with cognitive performance at 3-month follow-up in older patients undergoing aortic valve replacement (AVR).

Methods

Patients (N =?93) aged 70?years and older, undergoing transcatheter (TAVR, N =?66) or surgical (SAVR, N =?27) aortic valve replacement in an academic medical center were enrolled in this prospective cohort study. Delirium was assessed using the Confusion Assessment Method (CAM) on postoperative days 1, 2, 3, and 7. Data on patients' socio-demographics, functional status (including instrumental activities of daily living (IADL), and surgical risk scores (including Society of Thoracic Surgeons (STS) risk score), were collected at baseline. Cognitive status was assessed with the Mini-Mental Status Exam (MMSE) and the Clock Drawing Test (CDT) at baseline and 3?months after AVR.

Results

Delirium occurred in 21 (23%) patients, within the first three postoperative days in 95% (20/21) of the cases. Delirium incidence was lower in TAVR (13/66?=?20%) than SAVR (8/27?=?30%) patients, but this difference was not statistically significant (p =?.298). Patients with delirium had lower baseline cognitive performance (median MMSE score 27.0?±?3.0 vs 28.0?±?3.0, p =?.029), lower performance in IADL (7.0 vs 8.0, p =?.038), and higher STS risk scores (4.7?±?2.7 vs 2.9?±?2.3, p =?.020). In multivariate analyses, patients with intermediate (score?>?3 to ?8) and high (score?>?8) STS risk scores had 4.3 (95%CI 1.2-15.1, p =?.025) and 16.5 (95%CI 2.0-138.2, p =?.010), respectively, higher odds of incident delirium compared to patients with low (score???3) STS risk scores. At 3-month follow-up (N =?77), patients with delirium still had lower MMSE score (27.0?±?8.0 vs 28.0?±?2.0, p =?.007) but this difference did not remain significant once adjusting for baseline MMSE (?-coefficient 1.11, 95%CI [-?3.03-0.80], p =?.248).

Conclusions

Delirium occurred in about one in five older patients undergoing AVR, almost essentially within the first three postoperative days. Beside cognitive performance, STS risk score could enhance the identification of high-risk older patients to better target preventative interventions.

SUBMITTER: Humbert M

PROVIDER: S-EPMC7927377 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Publications

Delirium in older patients undergoing aortic valve replacement: incidence, predictors, and cognitive prognosis.

Humbert Marc M Büla Christophe J CJ Muller Olivier O Krief Hélène H Monney Pierre P

BMC geriatrics 20210302 1

<h4>Background</h4>Transcatheter aortic valve replacement is increasingly performed in frail older patients who were previously ineligible for a standard surgical procedure. The objectives of this study are to determine delirium incidence, predictors, and relationship with cognitive performance at 3-month follow-up in older patients undergoing aortic valve replacement (AVR).<h4>Methods</h4>Patients (N = 93) aged 70 years and older, undergoing transcatheter (TAVR, N = 66) or surgical (SAVR, N = 2 ...[more]

PMID: 33653285

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Project description:BackgroundTranscatheter aortic valve replacement (TAVR) may be associated with less delirium and allow faster recovery than surgical aortic valve replacement (SAVR).ObjectiveTo examine the association of delirium and its severity with clinical and functional outcomes after SAVR and TAVR.DesignProspective cohort study.SettingAn academic medical center.ParticipantsA total of 187 patients, aged 70 years and older, undergoing SAVR (N = 77) and TAVR (N = 110) in 2014 to 2016.MeasurementsDelirium was assessed daily using the Confusion Assessment Method (CAM), with severity measured by the CAM-Severity (CAM-S) score (range = 0-19). Outcomes were prolonged hospitalization (9 days or more); institutional discharge; and functional status, measured by ability to perform 22 daily activities and physical tasks over 12 months.ResultsSAVR patients had a higher incidence of delirium than TAVR patients (50.7% vs 25.5%; P < .001), despite younger mean age (77.9 vs 83.7 years) and higher baseline Mini-Mental State Examination score (26.9 vs 24.7). SAVR patients with delirium had a shorter duration (2.2 vs 3.4 days; P = .04) with a lower mean CAM-S score (4.5 vs 5.7; P = .01) than TAVR patients with delirium. The risk of prolonged hospitalization in no, mild, and severe delirium was 18.4%, 30.8%, and 61.5% after SAVR (P for trend = .009) and 26.8%, 38.5%, and 73.3% after TAVR (P for trend = .001), respectively. The risk of institutional discharge was 42.1%, 58.3%, and 84.6% after SAVR (P for trend = .01) and 32.5%, 69.2%, and 80.0% after TAVR (P for trend <.001), respectively. Severe delirium was associated with delayed functional recovery after SAVR and persistent functional impairment after TAVR at 12 months.ConclusionLess invasive TAVR was associated with lower incidence of delirium than SAVR. Once delirium developed, TAVR patients had more severe delirium and worse functional status trajectory than SAVR patients did.RegistrationNCT01845207.

Project description:OBJECTIVES:Despite evidence, frailty is not routinely assessed before cardiac surgery. We compared five brief frailty tests for predicting poor outcomes after aortic valve replacement and evaluated a strategy of performing comprehensive geriatric assessment (CGA) in screen-positive patients. DESIGN:Prospective cohort study. SETTING:A single academic center. PARTICIPANTS:Patients undergoing surgical aortic valve replacement (SAVR) (n = 91; mean age = 77.8 y) or transcatheter aortic valve replacement (TAVR) (n = 137; mean age = 84.5 y) from February 2014 to June 2017. MEASUREMENTS:Brief frailty tests (Fatigue, Resistance, Ambulation, Illness, and Loss of weight [FRAIL] scale; Clinical Frailty Scale; grip strength; gait speed; and chair rise) and a deficit-accumulation frailty index based on CGA (CGA-FI) were measured at baseline. A composite of death or functional decline and severe symptoms at 6 months was assessed. RESULTS:The outcome occurred in 8.8% (n = 8) after SAVR and 24.8% (n = 34) after TAVR. The chair rise test showed the highest discrimination in the SAVR (C statistic = .76) and TAVR cohorts (C statistic = .63). When the chair rise test was chosen as a screening test (?17?s for SAVR and??23?s for TAVR), the incidence of outcome for screen-negative patients, screen-positive patients with CGA-FI of .34 or lower, and screen-positive patients with CGA-FI higher than .34 were 1.9% (n = 1/54), 5.3% (n = 1/19), and 33.3% (n = 6/18) after SAVR, respectively, and 15.0% (n = 9/60), 14.3% (n = 3/21), and 38.3% (n = 22/56) after TAVR, respectively. Compared with routinely performing CGA, targeting CGA to screen-positive patients would result in 54 fewer CGAs, without compromising sensitivity (routine vs targeted: .75 vs .75; P = 1.00) and specificity (.84 vs .86; P = 1.00) in the SAVR cohort; and 60 fewer CGAs with lower sensitivity (.82 vs.65; P = .03) and higher specificity (.50 vs .67; P?<?.01) in the TAVR cohort. CONCLUSIONS:The chair rise test with targeted CGA may be a practical strategy to identify older patients at high risk for mortality and poor recovery after SAVR and TAVR in whom individualized care management should be considered. J Am Geriatr Soc 67:2031-2037, 2019.

Project description:ObjectivesThis study sought to evaluate the incidence and outcomes of endocarditis after transcatheter aortic valve replacement (TAVR).BackgroundData about endocarditis after TAVR are limited.MethodsThe study investigated Medicare patients who underwent TAVR from 2012 to 2017 and identified patients admitted with endocarditis during follow-up using a validated algorithm. The main study outcome was all-cause mortality.ResultsOf 134,717 patients who underwent TAVR, 1868 patients developed endocarditis during follow-up (incidence 0.87%/year), with majority of infections (65.0%) occurring within 1 year. Incidence of endocarditis declined in recent years. The most common organisms were Staphylococcus (22.0%), Streptococcus (20.0%), and Enterococcus (15.5%). Important predictors for endocarditis were younger age at TAVR, male sex, prior endocarditis, end-stage renal disease, repeat TAVR procedures, liver and lung disease, and post-TAVR acute kidney injury. Thirty-day and 1-year mortality were 18.5% and 45.6%, respectively. After adjusting for comorbidities and procedural complications, endocarditis after TAVR was associated with 3-fold higher risk of mortality (44.9 vs. 16.2 deaths per 100 person-years; adjusted hazard ratio [aHR]: 2.94; 95% confidence interval [CI]: 2.77 to 3.12; p < 0.0001). End-stage renal disease (aHR: 2.12; 95% CI: 1.72 to 2.60), endocarditis complicated by cardiogenic shock (aHR: 2.50, 95% CI: 1.56 to 4.02), ischemic stroke (aHR: 1.56; 95% CI: 1.07 to 2.28), intracerebral hemorrhage (aHR: 1.67; 95% CI: 1.01 to 2.76), acute kidney injury (aHR: 1.44; 95% CI: 1.27 to 1.63), blood transfusion (aHR: 1.28; 95% CI: 1.09 to 1.50), staphylococcal (aHR: 1.71; 95% CI: 1.49 to 1.97), and fungal endocarditis (aHR: 1.72; 95% CI: 1.23 to 2.39) (p < 0.05 for all) portended higher mortality following endocarditis.ConclusionsThe incidence of endocarditis after TAVR is low and declining. However, it is associated with poor prognosis with one-half the patients dying within 1 year.

Dataset Information

Delirium in older patients undergoing aortic valve replacement: incidence, predictors, and cognitive prognosis.

Background

Methods

Results

Conclusions

Publications

Delirium in older patients undergoing aortic valve replacement: incidence, predictors, and cognitive prognosis.

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