[Early cortical atrophy in REM sleep behavior disorder]
María José Abenza Abildua1, Elvira Lanz Santos2, Luis Moreno Domínguez2
1Unidad del Sueño, Sección de Neurología, Hospital Universitario Infanta Sofía. Fundación para la Investigación e Innovación Biomédica del Hospital Universitario Infanta Sofía y Hospital Universitario del Henares, Madrid, España.
Summary
Cortical atrophy on brain imaging can predict neurodegenerative disease in patients with REM sleep behavior disorder (RSBD). Absence of atrophy suggests slower disease progression, warranting further research.
Area of Science:
- Neurology
- Radiology
- Sleep Medicine
Background:
- REM sleep behavior disorder (RSBD) may precede neurodegenerative disease.
- Identifying early markers for neurodegeneration in RSBD is crucial.
Purpose of the Study:
- To evaluate cranial CT and MRI as early predictors of cortical atrophy in RSBD patients.
- To assess the utility of imaging in identifying early neurodegenerative disease.
Main Methods:
- Retrospective analysis of 54 RSBD patients (2012-2022).
- Review of cranial CT and MRI scans by a neuroradiologist.
- Assessment for cortical atrophy using scales like GCA.
Main Results:
- 10 out of 54 patients (18.5%) showed atrophy greater than expected for age.
- All 10 patients with significant atrophy were diagnosed with neurodegenerative disease.
- Patients without atrophy at diagnosis showed slower progression over 10 years.
Conclusions:
- Cortical atrophy on imaging may predict early neurodegeneration in RSBD.
- Absence of atrophy might indicate a slower disease course.
- Larger studies are needed to confirm these findings.
Keywords:
Atrofia corticalCognitive impairmentCortical atrophyCortical gray matterCranial resonanceDemenciaDementiaDeterioro cognitivoREM sleep behavior disorderResonancia cranealSustancia gris corticalTrastorno de conducta REMMore Related Videos
Related Concept Videos
REM Sleep Behavior Disorder
182
REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
RBD is significantly associated with...
182
Sleep-Wake Cycles
1.3K
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
1.3K
Narcolepsy
101
Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
101
Stages of Sleep
186
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
186
Sleepwalking and Sleep Talking
154
Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
154
Restless Leg Syndrome and Night Terrors
168
Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
168


