Hemoglobin Concentration and Post-Operative Delirium in Elderly Patients Undergoing Femoral Neck Fracture Surgery

This study aimed to determine the relationship between hemoglobin (Hb) concentration and post-operative delirium (POD) in elderly patients undergoing femoral neck fracture (FNF) surgery and to investigate whether the change in Hb concentration is associated with POD and the risk factors for POD. A total of 889 patients admitted with FNF between January 2016 and December 2020 were enrolled in this single-center, retrospective, case–control study. Hb concentrations were determined at admission and post-operative day 1 and the change in Hb concentration was defined as the absolute value of difference in pre-operative and post-operative Hb concentration. POD was assessed using the Confusion Assessment Method for the Intensive Care Unit (ICU) or the Confusion Assessment Method once a daily after surgery. The logistic regression analysis was performed for statistical analysis. In total, 172 (19.3%) patients developed POD and 151 (87.8%) patients developed POD within post-operative 3 days. Low pre-operative Hb concentration [p = 0.026, odds ratio (OR) = 0.978] and significant change in Hb concentration (p = 0.006, OR = 1.033) were significantly associated with POD. After excluding change in Hb concentration or pre-operative Hb concentration, neither of them was significantly associated with POD (p > 0.05). The interaction analysis of change in Hb concentration and pre-operative Hb concentration in the logistic regression model was negative. There was no significant relationship between post-operative Hb concentration and POD. Age (p < 0.001, OR = 1.072), stroke history (p = 0.003, OR = 2.489), post-operative ICU transfer (p = 0.007, OR = 1.981), and visual analog scale score within post-operative 2 days (p1 = 0.016 and p2 = 0.006) were independently associated with POD in the logistic regression analysis. Patients with low pre-operative Hb concentrations and high changes in Hb concentration seem to have an increased risk of POD and should receive more attention. Old age, stroke history, post-operative ICU transfer, and pain within post-operative 2 days were significantly associated with POD.

Statin Therapy May Be Associated with Reduced Mortality Risk of Sepsis Patients: A Retrospective Study from the MIMIC-IV Database

BackgroundIt is controversial whether statin therapy is beneficial for sepsis patients. A large retrospective cohort study was conducted to evaluate the association between statin therapy and mortality in sepsis patients.MethodsAdult (≥18 years) sepsis patients were enrolled and divided into two groups: the statin group and the no-statin group. Data including demographic features, vital signs, laboratory tests, and comorbidities from MIMIC-IV v1.0 were extracted. Delirium was assessed via the Confusion Assessment Method for the ICU (CAM-ICU). Ninety-day mortality, 28-day mortality and the incidence of delirium after statin therapy were evaluated using multivariable logistic analysis, the PSM model and subgroup analysis based on univariate analysis. ResultsIn univariate analysis and multivariable logistic analysis, statin therapy showed a significant association with both reduced 28-day and 90-day mortality (90-day mortality: OR 0.58, 95% CI: 0.46-0.72, p<0.001; 28-day mortality: OR 0.47, 95% CI: 0.37-0.60, p<0.001), while no relationship was found between statin therapy and delirium (OR 0.92, 95% CI: 0.49-1.72, p=0.787). In further PSM model and subgroup analyses or sensitivity analysis, consistent results were shown. ConclusionStatin therapy is significantly associated with 28-day and 90-day mortality without decrease in the incidence of delirium.

Preschool Confusion Assessment Method for the Intensive Care Unit–Spanish (psCAM-ICU-S): Cross-Cultural Adaptation and Validation in Colombia

Objective: The goal of the present study was to perform a cross-cultural adaptation and clinical validation of the Preschool Confusion Assessment Method for the Intensive Care Unit–Spanish (psCAM-ICU-S) for its clinical use in the Colombian Population.Methods: We designed a Cross-cultural adaptation study followed by a cross-sectional validation study at a Single-center Pediatric Intensive Care Unit (PICU) at a University Hospital in Bogotá, Colombia. The study population was children aged from 6 months to 5 years and 11 months who had been treated in the PICU with a Richmond sedation-agitation scale score of−3 or higher. A three-phase study was carried out. The first phase comprised the application of psychometric tests on the tool. In the second phase, the psCAM-ICU-S was applied to the target population. Patients were evaluated by a nurse and a pediatric intensivist using the psCAM-ICU-S; additionally, a child psychiatrist evaluated each patient using the DSM-V criteria; the psychiatrist evaluation was chosen as the gold standard for the diagnosis of delirium. In the third phase, an evaluation of the tool's effectiveness was carried out by using sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and likelihood ratios. Interrater agreement was also assessed by using the Fleiss' kappa.Results: Psychometric tests established the instrument's reliability and consistency as well as the clarity of its items. A total of 31 patients were evaluated. On average, the instrument presented a sensitivity of 93.3%, specificity of 94.8%, PPV 78%, NPV 99%, a positive likelihood ratio of 19.93, and a negative ratio of 0.07. The prevalence of delirium was 16.1% by the child psychiatrist and 25.8% using de psCAM-ICU-S. We confirmed high Interrater agreement, Kappa index (0.672–0.902).Conclusions: The psCAM-ICU-S was a valid and reliable instrument for the diagnosis of delirium in critically ill pediatric patients.

Is Perioperative Dexmedetomidine Associated With a Reduced Risk of Perioperative Neurocognitive Disorders Following Cardiac Surgery? A Systematic Review and Meta-Analysis With Trial Sequential Analysis of Randomized Controlled Trials

Background: To assess the effect of dexmedetomidine on the reducing risk of perioperative neurocognitive disorders (PNDs) following cardiac surgery.Methods: A systematic review and meta-analysis with trial sequential analysis (TSA) of randomized controlled trials were performed. PubMed, Embase, Cochrane Library, and CNKI databases (to August 16, 2020) were searched for relevant articles to analyze the incidence of PND for intraoperative or postoperative dexmedetomidine administration after cardiac surgery. PND included postoperative cognitive dysfunction (POCD) and postoperative delirium (POD).Results: A total of 24 studies with 3,610 patients were included. Compared with the control group, the incidence of POD in the dexmedetomidine group was significantly lower (odds ratio [OR]: 0.59, 95% CI: 0.43–0.82, P = 0.001), with firm evidence from TSA. Subgroup analyses confirmed that dexmedetomidine reduced the incidence of POD with firm evidence following coronary artery bypass grafting surgery (OR: 0.45, 95% CI: 0.26–0.79, P = 0.005), and intervention during the postoperative period (OR: 0.48, 95% CI: 0.34–0.67, P &lt; 0.001). Furthermore, the incidence of POD in the dexmedetomidine group was also decreased in mixed cardiac surgery (OR: 0.68, 95% CI: 0.47–0.98, P = 0.039). Irrespective of whether “Confusion Assessment Method/Confusion Assessment Method for intensive care unit” or “other tools” were used as diagnostic tools, the results showed a decreased risk of POD in the dexmedetomidine group. There was no significant difference in the incidence of POCD (OR: 0.47, 95% CI: 0.22–1.03, P = 0.060) between the two groups, but this result lacked firm evidence from TSA.Conclusion: The administration of dexmedetomidine during the perioperative period reduced the incidence of POD in patients after cardiac surgery, but there was no significant benefit in the incidence of POCD. The effect of dexmedetomidine on the incidence of POD or POCD following different types of surgery and the optimal dose and timing of dexmedetomidine warrant further investigation.Trial registration: PROSPERO registration number: CRD42020203980. Registered on September 13, 2020.

INCIDENCE, RISK FACTORS AND IMPACT ON OUTCOME IN OBSERVATIONAL STUDY OF DELIRIUM IN CARDIAC ICU.

Introduction: Many Patients admitted to Cardiac ICU (CICU) are easily prone to Delirium, that can lead to potentially severe consequences like Cognitive Impairment and increased risks of mortality. Delirium depends on the duration of hospital stay and discharge, contrary mainly affected to the patients on mechanical ventilation, which becomes the potential reason for longer duration. Studies suggest, Delirium is a widely discussed topic, when comes to the management of the patient in Cardiac ICU. During the Rounds, it is mandatory to focus on the diagnosis of delirium and must be validated using Confusion Assessment Method (CAM). These methods not only prevent the risk of the delirium and also enhances the use of the other preventive measures like the basis of the treatment, environmental factors, quiet time, sleep promotion, family support, communication with the patient, pain and dyspnea. When conrmed with delirium, pharmacological prophylaxis must be used as soon as possible. Most often, communication between Doctor, Nurse and Patient drives the most of the depression and acute delirium, but when delirium becomes critical with severe agitation or weaning from invasive mechanical ventilation. Thus, it is very important to identify the risk, complexity of the patients and clinical case scenarios of delirium in Cardiac ICU. Strategic Efforts were done to improve the identication of the patient at risk during admission, during stay at Cardiac ICU and during discharge and orders to improve the mental state of delirium patient. In this article, we provide a panorama of the incidence, risk factors, and impact on outcome of delirium in a Cardiac Intensive Care Unit (CICU). Methods: In this case study, total of 211 patients were observed for sign and symptoms in Cardiac ICU for Delirium. We aimed to determine the incidence, risk factors, and impact on outcome of delirium in a Cardiac Intensive Care Unit (CICU) in CHLMultispeciality Hospital and Research Center, Chandrapur using a prospective observational study. Patients:All consecutive patients admitted to the CICU between April 2021 and June 2021 were included if they were aged more than 18 years, had an CICU stay of more than 24 h and no psychiatric history. Patients eligible for the study were evaluated by the medical staff to detect delirium using the CAM. Results: In a 3-month period, 211 Patients were admitted in Cardiac ICU of CHLMultispeciality Hospital and Research Center. Out of which 198 were included in our observational study. The incidence of delirium at the end of the study was 21%. The number of delirious patients were 43 and non-delirious were 155. Age played an Important factor where 86% of Delirious patients were old aged. The LOS (Length of Stay) for Delirious and non-delirious patients were 6±1 vs 5±1 respectively. The SAS (Riker Agitation Scale) has the value of 4±1 vs 3±0.5, CAM (Confusion Assessment Method) has the value of 6±1 vs 3±1 and DDS (Delirium Detection Score) was 5±1 vs 3±1 for delirious vs non-delirious patients. The SAPS II (Simplied Acute Physiology Score II) Score for delirious patients was 23±1 and 20±2. The Incidences like Removal of Catheters were more frequent in this study with 20% in delirious patients and <1% Incidence in non-delirious patients. Removal of ET Tube had the Incidence of 5% vs <1%, Removal of Urinary Catheter 7% vs <1%, Removal of Ryle's Tube 7% vs <1%, respectively for delirious vs non-delirious patients.

Validation of the Malay 3-Minute Diagnostic Interview for Confusion Assessment Method in a surgical population

Background: Delirium is a common postoperative complication among elderly which can be easily missed and leads to poorer outcomes. The 3-Minute Diagnostic Assessment for Confusion Assessment Method (3D-CAM) is a short and structured tool to assess delirium by healthcare staff with minimal training. This study aimed to validate the translated Malay 3D-CAM (M3D-CAM) in postoperative surgical patients. Methods: In this prospective diagnostic study, 3D-CAM was translated into Malay and two assessors (1 and 2) independently interviewed surgical patients above 65 years old with M3D-CAM on postoperative day one. A psychiatrist diagnosed postoperative delirium according to the Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-5) as the reference standard. The sequence of examinations was done randomly with all results blinded to each other and the diagnostic characteristics of M3D-CAM analysed with k coefficient used to evaluate reliability. Results: A total of 427 patients were screened, 111 recruited with a final 100 paired interviews completed. Their mean age was 72 (± 6) years old. Two-thirds of patients were proficient in Malay and English, therefore assessed in both 3D-CAM and M3D-CAM. Delirium was identified in 11% and 12% of patients by assessors 1 and 2 respectively while compared to DSM-5, M3D-CAM had 80% and 90% sensitivity with 96.7% and 97.7% specificity. M3D-CAM had excellent inter-rater reliability (85%), substantial parallel reliability (70%) and features 1 and 3 with substantial parallel agreement (p <0.001). Conclusion: This study demonstrated that M3D-CAM is reliable and valid for delirium assessment in the postoperative setting.

Bedeutung der Desorientierung bei der Delireinschätzung

ZusammenfassungDesorientierung kann ein frühes Merkmal eines Delirs sein. Für die Überwachung eines Delirs testet die im deutschsprachigen Raum weit verbreitete „Confusion Assessment Method for Intensive Care Unit“ (CAM-ICU) die Orientierung nicht, da intubierte Intensivpatienten sich nicht verbal äußern können. Die Mehrheit der Patienten auf deutschen Intensivstationen ist aber nicht beatmet, sie könnten hinsichtlich ihrer Orientiertheit befragt werden. Die vorliegende Studie untersuchte, ob sich durch das Kriterium „Desorientierung“ bei extubierten Patienten im Vergleich zur CAM-ICU divergierende Befunde ergeben und ob sich die Sensitivität der CAM-ICU durch Kombination mit dem Merkmal „Desorientierung“ („CAM-IMC“) erhöhen lassen. Insgesamt 86 gepaarte Untersuchungen fanden bei 50 extubierten Patienten statt. Ein Delir fand sich bei 19,8 % (n = 17) aller Untersuchungen. Die CAM-ICU hatte eine Sensitivität von 71 % (95%-KI: 44–90 %) und eine Spezifität von 100 % (95–100 %). Für „Desorientierung“ als alleiniges Delir-Merkmal fand sich eine Sensitivität von 77 % (50–93 %) und eine Spezifität von 93 % (89–100 %). Die CAM-IMC erreichte eine Sensitivität von 88 % (64–99 %) bei einer Spezifität von 100 % (95–100 %). Die „Receiver-Operating-Characteristics(ROC)-Analyse“ fand mit einer „area under the curve“ (AUC) von 0,941 (95%-KI: 0,851–1,000) für die CAM-IMC den höchsten Wert im Vergleich zu den anderen Delir-Tests (CAM-ICU, AUC 0,853 [0,720–0,986]; Desorientierung, AUC 0,868 [0,745–0,991]). Diese Arbeit unterstreicht die Wertigkeit des Merkmals „Desorientierung“ für Delir-Tests bei verbal kommunikationsfähigen Patienten und erklärt einige diskrepante Beurteilungen schwierig einzuschätzender Patienten in der täglichen Praxis. Die CAM-IMC scheint als Delir-Test für extubierte Patienten günstigere Eigenschaften als die CAM-ICU zu haben und sollte eingehender überprüft werden.

Impaired cognitive performance on MoCA testing at discharge in elderly patients following day endoscopy and its relationship to preoperative mild cognitive impairment

In patients admitted to hospital, preoperative mild cognitive impairment predicts postoperative complications. The effect of mild cognitive impairment on discharge readiness among the day stay surgery population is unknown. Our aims were to determine the incidence of impaired cognitive performance at discharge after day stay endoscopy and whether pre-existing mild cognitive impairment was associated with its development. A single-centre cohort study of elective day stay endoscopy patients was undertaken. Over a three-month period, data were collected from 69 patients aged 65 years and over. Patients were cognitively assessed on admission and discharge using the Montreal cognitive assessment tool and the three-minute diagnostic confusion assessment method. At baseline, patients who scored 1.5 or more standard deviations below age-adjusted levels on the Montreal cognitive assessment tool in conjunction with a subjective memory complaint were classified as having mild cognitive impairment. At discharge, patients were classified as having impaired cognitive performance if there was a reduction in the Montreal cognitive assessment tool score by at least two points. We also assessed delirium and subsyndromal delirium at discharge using the three-minute diagnostic confusion assessment method. We identified mild cognitive impairment in 23 patients (33.3%) on admission, and impaired performance on the Montreal cognitive assessment tool test at discharge in 35 (50.7%) patients. There was no association between mild cognitive impairment on admission and impaired cognitive performance at discharge (50.0% versus 51.1%, P = 0.94). This study demonstrates that evidence of impaired cognitive performance on the Montreal cognitive assessment tool testing is present after day stay endoscopy in over 50% of elderly patients, but this is not associated with preoperative cognitive status.

Diagnóstico, intervenção precoce e prevenção do Delirium no adulto

Introdução: O delirium é uma síndrome frequente, com morbimortalidade associada considerável mas potencialmente prevenível se instituídas medidas de prevenção e rastreio adequadas. No entanto, é ainda pouco conhecida e muitas vezes subdiagnosticada, principalmente na Atenção Primária à Saúde onde está muitas vezes associado a internamento recente e situações benignas facilmente corrigíveis se detetadas precocemente. O objetivo deste trabalho foi a realização de uma revisão sobre o delirium, assim como propor uma abordagem diagnóstica, terapêutica e preventiva na Atenção Primária à Saúde. Métodos: Foi feita uma pesquisa bibliográfica de artigos publicados entre janeiro de 2008 e dezembro de 2020, na PubMed e Scielo com o descritor “delirium” combinado com “primary health care” ou “general practice”. Resultados: Na abordagem do delirium, importa primeiro identificar indíviduos de risco, tarefa que tem por base um modelo multifactorial que conjuga fatores predisponentes e precipitantes. Em termos de métodos de rastreio, o mais usado é o Confusion Assessment Method, mas testes de avaliação da atenção ou Escala de Agitação e Sedação de Richmond podem também ser usados, sempre em associação com o exame físico completo para confirmação diagnóstica. A abordagem terapêutica e preventiva assenta essencialmente em medidas não farmacológicas que visam corrigir fatores de risco. Considerações Finais: De uma forma geral, o desenvolvimento de programas sistemáticos de formação e rastreio que envolvam uma equipa multidisciplinar, incluindo elementos da Atenção Primária à Saúde e cuidadores, podem ser a chave para o sucesso na redução da incidência do delirium e das suas consequências.