Search Results - "Merlin D Larson"

Infrared pupillometry to detect the light reflex during cardiopulmonary resuscitation: A case series by Behrends, Matthias, Niemann, Claus U, Larson, Merlin D

“…Abstract Background The presence or absence of the pupillary light reflex following cardiopulmonary resuscitation has been shown to have prognostic value. We…”
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Portable Infrared Pupillometry: A Review by Larson, Merlin D., Behrends, Matthias

“…Portable infrared pupillometers provide an objective measure of pupil size and pupillary reflexes, which for most clinicians was previously only a visual…”
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Pupillometry to guide postoperative analgesia by Larson, Merlin D, Sessler, Daniel I

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Commentary on pupillometry and pain ratings by Larson, Merlin D.

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Reader Response: Automated Quantitative Pupillometry in the Critically Ill: A Systematic Review of the Literature by Larson, Merlin D.

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Evaluation of two portable pupillometers to assess clinical utility by McKay, Rachel Eshima, Kohn, Michael A, Schwartz, Elliot S, Larson, Merlin D

“…Pupillometers have been proposed as clinical assessment tools. We compared two pupillometers to assess measurement agreement. We enrolled 30 subjects and…”
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Semimechanistic models to relate noxious stimulation, movement, and pupillary dilation responses in the presence of opioids by Marco‐Ariño, Nicolás, Vide, Sergio, Agustí, Mercè, Chen, Andrew, Jaramillo, Sebastián, Irurzun‐Arana, Itziar, Pacheco, Adrià, Gonzalez, Carmen, Jensen, Erik W., Capsi‐Morales, Patricia, Valencia, José F., Troconiz, Iñaki F., Gambus, Pedro L., Larson, Merlin D.

“…Intraoperative targeting of the analgesic effect still lacks an optimal solution. Opioids are currently the main drug used to achieve antinociception, and…”
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Measurements of pupillary unrest using infrared pupillometry fail to detect changes in pain intensity in patients after surgery: a prospective observational study by Behrends, Matthias, Larson, Merlin D.

“…Purpose The pupil displays chaotic oscillations, also referred to as pupillary unrest in ambient light (PUAL). As pain has previously been shown to increase…”
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Absence of pupillary reflex dilation in response to a laryngeal test stimulus may predict safe tracheal extubation in anesthetized children by Abelson, Daniel, Larson, Merlin D.

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Population study of pupillary unrest in ambient light by McKay, Rachel Eshima, Kohn, Michael, Schwartz, Elliot, Larson, Merlin D.

“…Pupillary unrest in ambient light (PUAL) describes the fluctuation of pupil diameter observed in normal, awake subjects under typical levels of indoor light…”
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Overcoming Obstacles: The Legacy of Fidel Pagés, Founder of the Epidural, 100 Years After His Passing by Chinn, Gregory A, Gray, Andrew T, Larson, Merlin D

“…Fidel Pagés, a Spanish surgeon, tragically died in 1923 at the age of 37, just 2 years after his publication "Anestesia Metamérica," the first description of…”
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Patient Safety During Anesthesia: 100 Years of Progress Documented in Anesthesia & Analgesia by Liu, Linda L., Larson, Merlín D.

“…Anesthesiology has evolved to be a leader in addressing patient safety. Our specialty has overcome serious morbidities including explosions, fires, organ…”
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Portable infrared pupillometry in critical care by Larson, Merlin D, Singh, Vineeta

“…Infrared pupillometry was introduced in 1962 but portable instruments that use this technology have only recently become available in the hospital setting…”
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Detection of opioid effect with pupillometry by McKay, Rachel Eshima, Larson, Merlín D.

“…Opioids produce pupillary constriction but their impact on pupillary unrest and the dynamic parameters of the pupillary light reflex have not been…”
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Evaluation of the portable infrared pupillometer by Du, Rose, Meeker, Michele, Bacchetti, Peter, Larson, Merlin D, Holland, Martin C, Manley, Geoffrey T

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Pupillary unrest, opioid intensity, and the impact of environmental stimulation on respiratory depression by McKay, Rachel Eshima, Kohn, Michael A., Larson, Merlin D.

“…Opioid-induced respiratory depression (OIRD) confers significant morbidity, but its onset can be challenging to recognize. Pain or stimulation effects of…”
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Mechanism of opioid-induced pupillary effects by Larson, Merlin D

“…Abstract Objective This study tested the hypothesis that increased activity in the pupilloconstrictor nucleus by the addition of ambient light and by the…”
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Mechanism of pupillary reflex dilation in awake volunteers and in organ donors by YANG, Laura L, NIEMANN, Claus U, LARSON, Merlin D

“…The mechanism of reflex pupillary dilation was investigated in eight patients who were declared brain dead after rupture of intracranial vascular malformations…”
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Prediction of Opioid Analgesic Efficacy by Measurement of Pupillary Unrest by Neice, Andrew E, Behrends, Matthias, Bokoch, Michael P, Seligman, Katherine M, Conrad, Nicole M, Larson, Merlin D

“…BACKGROUND:Pupillary unrest under ambient light (PUAL) is the fluctuation in pupil diameter in time around a mean value. PUAL is augmented by light and…”
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Brimonidine eye drops reveal diminished sympathetic pupillary tone in comatose patients with brain injury by Jakobsen, Elisabeth Waldemar, Nersesjan, Vardan, Albrechtsen, Simon Sander, Othman, Marwan H., Amiri, Moshgan, Knudsen, Niels Vendelbo, Larson, Merlin D., Hassager, Christian, Møller, Kirsten, Kjaergaard, Jesper, Kondziella, Daniel

“…Background There is an urgent need for easy-to-perform bedside measures to detect residual consciousness in clinically unresponsive patients with acute brain…”
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