Application of near infrared spectroscopy in the ICU for follow-up of patients with subdural haematomas (2024)

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Patients in intensive care units (ICU) are at increased risk of corneal abrasions and infectious keratitis due to poor eyelid closure, decreased blink reflex, and increased exposure to pathogenic microorganisms. The aim of this retrospective study was to evaluate the ocular surface problems in patients who stayed in ICU more than 7 days and were consulted by an ophthalmologist. There were 26 men and 14 women with a mean age of 40.1 ± 18.15 years (range 17–74 years). Conjunctiva hyperemia, mucopurulent or purulent secretion, corneal staining, and corneal filaments were observed in 56.25%, 36.25%, 15%, and 5% of the eyes, respectively. Keratitis was observed in 4 patients (10%) who were treated successfully with topical antibiotics. Mean Schirmers test results were 7.6 ± 5.7 mm/5 min (median 6.5 mm/5 min) in the right, and 7.9 ± 6.3 mm/5 min (median 7 mm/5 min) in the left eyes. Schirmers test results were <5 mm/5 min in 40% of the subjects. The parameters did not show statistically significant difference according to mechanical ventilation, sedation, and use of inotropes. As ICU patients are more susceptible to develop dry eye, keratopathy, and ocular infections, they should be consulted by an ophthalmologist for early diagnosis of ocular surface disorders.

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Eye care is one of the most critical tasks of intensive care unit (ICU) nurses. Patients in this unit are exposed to potential ocular problems due to critical conditions. This study aimed to establish a new eye care protocol for preventing ocular surface disorders in patients admitted to ICU. This was a clinical trial study performed on patients admitted to ICU in 2019. The data gathering tools included the demographic questionnaire, the Schirmer test for dry eye, fluorescein staining and slit lamp manual for examining corneal ulcers, and slit lamp manual to check keratitis and conjunctivitis. A type of eye care protocol was performed on the patient&#39;s eyes. After five consecutive days of executing the protocol, the data were analyzed using SPSS software version 18. The use of eye care protocol reduced the risk of keratitis (P=0.027), conjunctivitis (P=0.012), eye dryness (P=0.001), and corneal ulcer (P=0.003) in patients admitted to ICU in the intervention group compared to the ...

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International Journal of Environmental Research and Public Health

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Maria Kózka

In critically ill patients, normal eye protection mechanisms, such as tear production, blinking, and keeping the eye closed, are impaired. In addition, many other factors related to patients’ severe condition and treatment contribute to ocular surface disease. Reducing risk factors and proper eye care can have a significant impact on incidences of eye complications and patient quality of life after discharge from the intensive care unit (ICU). The aim of the study was to determine risk factors for ocular complication, especially those related to nursing care. The study was conducted in the ICU of a university hospital. Methods for estimating and analyzing medical records were used. The patient’s evaluation sheet covering 12 categories of risk factors for eye complications was worked out. The study group included 76 patients (34 patients with injuries and 42 without injuries). The Shapiro–Wilk test, the Spearman’s rank correlation test, the Mann–Whitney U test and the Friedman’s ANOV...

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IAR Consortium

Indications for Admission and Its Association with Ocular Surface Disorders among Patients Admitted In Adult Intensive Care Unit of a Tertiary Care Hospital

2022 •

IARCON Journals

Background: Present study was done to evaluate the Indications for admission and its association with ocular surface disorders among Patients admitted in Adult Intensive Care Unit of a Tertiary Care Hospital. Material & Methods: It was a prospective observational study carried in AICU over period of one year by Department of Ophthalmology, Dr. RPGMC Kangra at Tanda. All the patients who were admitted in AICU greater than 48 hours between ages of 18-65 years were included and evaluated for socio-demographic information like age, gender, indications for admission etc. Thorough ophthalmic examination was also done for ocular surface disorders and analysed using epi info v7 software. Results: A total of 126 patients were included in the study. Mean age of the study participants was 41.8 years. Maximum patients, 23.8% of the patients were in age group of 51 and 60 years followed by 23% between 21 and 30 years and 41 and 50 years each. 64.3% of the patients were males while 35.7% were females. The most common indication for AICU admission was post-operative monitoring (30.9%) followed by head injury (19.8%) and orthopaedic injury (11.1%). In the present study, 74 (58.7%) of the patients had ocular surface disorders. Ocular surface disorders were observed most commonly among patients who had head injury Followed by Post-operative monitoring and Respiratory Insufficiency as indication for AICU admission. Conclusion: The present study concluded that post-operative monitoring was the most common indication for AICU admission and Ocular surface disorders were observed most commonly among patients who had head injury.

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Journal of Critical Care

Uncommon ophthalmologic disorders in intensive care unit patients

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Maziar Sadri

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Application of near infrared spectroscopy in the ICU for follow-up of patients with subdural haematomas (2024)

FAQs

What is near infrared spectroscopy in ICU? ›

Near-infrared spectroscopy (NIRS) refers to an optical technique that can provide information concerning changes in cerebral oxygen saturation, CBF and volume, cerebral venous oxygen saturation, and cerebral oxygen utilization in the brain.

What are the applications of near infrared spectroscopy in neurocritical care? ›

In acute brain injury, NIRS can be used to measure autoregulation to identify an "optimum" BP where autoregulation status is best preserved. Finally, NIRS has been utilized to identify oximetry thresholds that correlate with poor outcome as well as identify new focal intracranial hemorrhages.

What is the use of near infrared spectroscopy NIRS in cerebral tissue oxygenation monitoring in neonates? ›

Near infrared spectroscopy (NIRS) is useful in critically ill neonates as a trend monitor to evaluate the balance between tissue oxygen delivery and consumption, providing cerebral and somatic oximetry values, and allowing earlier identification of abnormalities in hemodynamics and cerebral perfusion.

What is near infrared spectroscopy in neurology? ›

Cerebral near-infrared spectroscopy (NIRS) is an optical, noninvasive method for indirect estimation of brain oxygenation and perfusion. NIRS for cerebral monitoring was first described by Ferrari et al., in 1985, and the first commercial available devices were introduced about 10 years later.

What are the clinical applications of near infrared spectroscopy? ›

Near-Infrared spectroscopy can provide a typical pattern useful for disease stratification and assess blood flow, oxygenation, and tumor metabolism.

What are the applications of near infrared spectroscopy? ›

Near-infrared spectroscopy is widely applied in agriculture for determining the quality of forages, grains, and grain products, oilseeds, coffee, tea, spices, fruits, vegetables, sugarcane, beverages, fats, and oils, dairy products, eggs, meat, and other agricultural products.

Why use near-infrared spectroscopy? ›

NIR spectroscopy allows simultaneous qualitative and accurate quantitative analysis of different parameters, high sample throughput, real-time monitoring, and is a non-destructive, cost-effective and user-friendly quality and process tool.

What are the medical applications of infrared spectroscopy? ›

FT-IR can be used to analyze the composition of body fluids and tissue samples, making this a valuable technique in medicine. Using FT-IR to analyze blood is a great tool for health monitoring as everyone has a unique blood IR spectrum that changes in a way that reflects a person's health.

What is near-infrared spectroscopy of the brain? ›

Cerebral NIRS is increasingly used for the early detection of lack of oxygen to the brain. It uses near‐infrared light (700 to 1000 nanometres) to penetrate through the superficial layers of the head, including the scalp and the skull, to show the cerebral tissue.

What is the purpose of NIRS monitoring? ›

NIRS provides continuous, non-invasive monitoring of regional tissue oxygen saturation (%rSO2), therefore providing an indication of the balance between regional tissue oxygen delivery and extraction.

What is the difference between pulse oximetry and NIRS? ›

The main difference between pulse oximetry and NIRS in terms of the calculations of oxygen saturation is the tissue being sampled. Pulse oximetry calculates the percentage of O 2 Hb in arterial blood, whereas NIRS calculates the percentage of O 2 Hb in both arterial and venous blood compartments.

What is the clinical use of NIRS? ›

The absorption of near infrared light at this wavelength is used for measuring total hemoglobin for calculating relative cerebral oxygen saturation as well as for estimating cerebral blood volume for monitoring cerebral vasoreactivity (see text).

What is the difference between infrared and near infrared spectroscopy? ›

NIR is faster and easier to handle than IR. It does not require sample preparation and can provide information about the bulk material. It is also versatile. NIR spectroscopy allows for the quantification of different kinds of chemical and physical parameters and can also be implemented in a process environment.

What are near infrared spectroscopy procedures? ›

NIR spectroscopy is a method that makes use of the near-infrared region of the electromagnetic spectrum (from about 700 to 2500 nanometers). By measuring light scattered off of and through a sample, NIR reflectance spectra can be used to quickly determine a material's properties without altering the sample.

What does near-infrared detect? ›

NIR-based sensing provides machines with information about objects in the physical environment. When NIR light is emitted and reflected off of an object, an NIR sensor receives the reflected light or light pattern to gauge the distance, size, location, and identifying features of objects in the three-dimensional world.

What does near infrared spectroscopy do? ›

NIR spectroscopy is a method that makes use of the near-infrared region of the electromagnetic spectrum (from about 700 to 2500 nanometers). By measuring light scattered off of and through a sample, NIR reflectance spectra can be used to quickly determine a material's properties without altering the sample.

What is near-infrared imaging used for? ›

Near-IR spectroscopy and imaging can be used to probe tissue biochemistry in vivo. Fibre optic accessories are sometimes used to bring the IR light to the patient, although light emitted by “compact” sources such as light emitting diodes (LEDs) is frequently directly applied to the tissue.

What is near infrared spectroscopy of the brain? ›

Cerebral NIRS is increasingly used for the early detection of lack of oxygen to the brain. It uses near‐infrared light (700 to 1000 nanometres) to penetrate through the superficial layers of the head, including the scalp and the skull, to show the cerebral tissue.

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