Vitamin D and delirium

OBJECTIVE: Postoperative delirium is the most common neuropsychiatric complication after cardiac surgery. Vitamin D contributes to numerous brain processes, regulation of neurotrophic factors, neuroprotection, neuroplasticity, and brain development, which could play a role in delirium pathophysiology. The authors evaluated the association of admission serum levels of 25-hydroxyvitamin D [25(OH)D] with the occurrence of delirium after coronary artery bypass surgery. DESIGN: A prospective cohort study...

The case involves a 62-year-old female native of the USA with a history of bipolar disorder and chronic obstructive pulmonary disease who presented with intractable diarrhoea. Prior to the index admission, she was admitted to the intensive care unit and required pericardiocentesis for an idiopathic pericardial effusion with tamponade physiology. Following discharge, she suffered intractable diarrhoea and represented for medical evaluation. She had a painful, swollen tongue as well as persistent hypoglycaemia and required glucose infusions...

Introduction: Amygdalin, marketed misleadingly as supplement "Vitamin B17," is a cyanogenic glycoside. When swallowed, it is hydrolyzed into cyanide in the small intestine, which causes histotoxic hypoxia via inhibition of cytochrome c oxidase. It remains available for purchase online despite a ban from the US Food and Drug Administration. We report a case of massive intentional amygdalin overdose resulting in recurrent cyanide toxicity after initial successful antidotal therapy. Case summary: A 33-year-old woman intentionally ingested 20 g of "apricot POWER B17 Amygdalin" supplements...

OBJECTIVE: In this study, we investigated whether the addition of vitamin B complex to prime solution for cardiopulmonary bypass (CPB) in cobalamin-deficient patients undergoing on-pump coronary artery bypass grafting (CABG) helps prevent the development of postoperative delirium (POD). MATERIALS AND METHODS: In the present study, 69 of 138 patients with serum vitamin B12 levels <200 pg/mL based on the blood sample taken within 1 week prior to on-pump CABG between January 2013 and December 2017 were enrolled...

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OBJECTIVE: To estimate effects of vitamin D levels on incident delirium hospital admissions using inherited genetic variants in mendelian randomization models, which minimize confounding and exclude reverse causation. METHODS: Longitudinal analysis using the UK Biobank, community-based, volunteer cohort (2006-2010) with incident hospital-diagnosed delirium (ICD-10 F05) ascertained during ≤9.9 years of follow-up of hospitalization records (to early 2016). We included volunteers of European descent aged 60-plus years by end of follow-up...

Importance: Overuse of medical care is a well-recognized problem in health care, associated with patient harm and costs. We sought to identify and highlight original research articles published in 2017 that are most relevant to understanding medical overuse. Observations: A structured review of English-language articles published in 2017 was performed, coupled with examination of tables of contents of high-impact journals to identify articles related to medical overuse in adult care...

2017 highlights benefits of prevention. Better control of cardiovascular risk reduces the incidence of dementia and monthly high-dose vitamin D the incidence of respiratory infections in nursing home. Pre-operative geriatric assessment lowers by 20% the rate of delirium after hip-fracture surgery and complications in vascular surgery. Deleterious effects are also reported. High-dose vitamin D triples the rate of falls in supplemented residents and doesn't improve gait speed in sedentary men. Widely used in cardiovascular prevention, antithrombotic therapy is associated with an astonishing risk of subdural bleeding that further increases with the number of drugs combined together...

INTRODUCTION: Delirium has been well studied among patients in the intensive care unit (ICU); however, data beyond the ICU is limited. The purpose of this study is to prospectively evaluate the incidence and associated risk factors for delirium in noncritical care areas (NCCA). METHODS: After institutional review board approval, a prospective cohort study was conducted at our urban Level I Trauma Center from December 2015 to February 2016. All patients admitted to the designated study area by a trauma surgeon were included...

AIM: To describe the orthogeriatric activity in the elderly with hip fractures in the Hospital Mancha Centro, based on the recommendations of the main guidelines. MATERIAL AND METHOD: Observational prospective study, comprising all patients over 65 years of age admitted to the Traumatology Unit with a hip fracture between April 2015 and December 2015. Patients were admitted under the care of the Traumatology Unit with cross-consultation carried out with the Geriatrics Department, which then carried out a pre-operative geriatric assessment and the post-operative follow-ups...

The goal of the present study was to determine whether pre-hospital 25-hydroxyvitamin D (25(OH)D) levels are associated with the risk of hospital-acquired new-onset delirium (HANOD). We performed a retrospective cohort study of 4508 adult inpatients at two teaching hospitals in Boston from 1993 to 2006. All patients had 25(OH)D levels measured before hospital admission. The main outcome measure was HANOD, defined as the onset of delirium during an acute care hospitalisation. Patients with a history of delirium or dementia, or those with a diagnosis of delirium or dementia upon acute care hospitalisation were excluded from the analysis...

Nowadays, fracture surgery represents a big part of the orthopedic surgeon workload, and usually has associated major clinical and social cost implications. These fractures have several complications. Some of these are medical, and other related to the surgical treatment itself. Medical complications may affect around 20% of patients with hip fracture. Cognitive and neurological alterations, cardiopulmonary affections (alone or combined), venous thromboembolism, gastrointestinal tract bleeding, urinary tract complications, perioperative anemia, electrolytic and metabolic disorders, and pressure scars are the most important medical complications after hip surgery in terms of frequency, increase of length of stay and perioperative mortality...

The authors examined the frequency of neuroimaging findings of cortical atrophy and/or cerebrovascular disease in patients with delirium with hypovitaminosis D and normal vitamin D levels. Of 32 patients with delirium with hypovitaminosis D who were neuroimaged, 91.4% had neuroimaging findings, despite only five cases having a comorbid diagnosis of dementia. Similar frequencies of cortical atrophy and/or cerebrovascular disease were found in patients with delirium with normal vitamin D levels. Further research with a larger sample size is needed to compare neuroimaging findings between normal patients and patients with hypovitaminosis D with delirium...

BACKGROUND: As vitamin D may have a neuroprotective effect, the authors studied the association of biomarkers of vitamin D status and delirium to see if low vitamin D status was common in delirium cases. METHODS: Biochemical measures of vitamin D (25-hydroxyvitamin D [25-OHD]) and calcium metabolism were used in this retrospective cross-sectional analysis of adult in-patients with delirium, admitted at three Canadian academic hospitals from January 2011 to July 2012...

BACKGROUND: Vitamin B12 deficiency is associated with a wide spectrum of neuro-psychiatric manifestations. RESULTS: We report a case of a 44 year old female patient referred to the haematology unit with vitamin B12 deficiency presenting as an acute confusional state or delirium. Total resolution of the psychiatric symptoms occurred following parenteral vitamin B12 replacement therapy. CONCLUSION: This case report highlights one of the neuro-psychiatric presentations of vitamin B12 deficiency in a previously healthy individual...

OBJECTIVE: (1) To confirm that vitamin D deficiency, defined as serum 25-hydroxyvitamin D (25OHD) concentration < 25 nmol/L, was associated with long length-of-stay (LOS) among older inpatients admitted to geriatric acute care unit; and (2) to examine which combination of risk factors of longer LOS including vitamin D deficiency best predicted longer LOS. STUDY DESIGN AND SETTING: Based on a prospective cohort study with a 25-day follow-up on average, 531 consecutive older inpatients (mean age 85...

Hip fractures and dementia increase exponentially with age, and patients who are afflicted by both conditions suffer significant morbidity and mortality. The aging of our population heightens the need to recognize the interaction of these conditions in order to improve our efforts to prevent hip fractures, provide acute care that improves outcomes, and provide secondary prevention and rehabilitation that returns patients to their previous level of functioning. Identification and treatment of vitamin D deficiency and osteoporosis and assessment and interventions to reduce falls in patients with dementia can significantly impact the incidence of first and subsequent hip fractures...

OBJECTIVES: This study investigated the rate of hypovitaminosis D in psychogeriatric inpatients and explored whether any associations exist between vitamin D levels, cognitive function, and psychiatric diagnoses. DESIGN: Retrospective medical record review from November 2000 through November 2010. SETTING: Geriatric psychiatric ward of an academic tertiary care hospital. PARTICIPANTS: Psychiatric inpatients aged 65 years or older...

A 65 year old alcoholic man was hospitalized because he was tired, hypotonic, with postural tremor. The neurologic symptoms increased during the first two days despite an adequate therapy for alcoholic weaning with hydratation, benzodiazepines and vitamins. A severe hypophosphatemia is diagnosed, associated with hypovitaminosis D, mild hypomagnesemia, mild hypokaliemia and a refeeding syndrome. 24 hours after the normalisation of his phosphatemia, the neurologic symptoms are adjusted.

PURPOSE: The pathophysiology of delirium in critical illness is unclear. 25-OH vitamin D (25-OHD) has neuroprotective properties but a relationship between serum 25-OHD and delirium has not been examined. We tested the hypothesis that low serum 25-OHD is associated with delirium during critical illness. MATERIALS AND METHODS: In a prospective cohort of 120 medical intensive care unit (ICU) patients, blood was collected within 24 hours of ICU admission for measurement of 25-OHD...