Related Experiment Video
Updated: Jul 3, 2026

04:38
A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
Published on: May 22, 2019
Smell and taste dysfunction following minor stroke: a case report.
Theresa L Green1, Lisa D McGregor, Kathryn M King
1Faculty of Nursing, Department of Clinical Neurosciences, University of Calgary, Calgary, AB. greentl@ucalgary.ca
Summary
Minor strokes can significantly impair smell and taste, impacting nutrition and quality of life. Early assessment of olfactory and gustatory dysfunction post-stroke is crucial for patient well-being.
Area of Science:
- Neurology
- Sensory Science
Background:
- Olfactory and gustatory functions are vital for nourishment and safety.
- Dysfunction of smell and taste together is infrequently reported post-stroke.
Observation:
- Two patients with minor stroke experienced significant smell and taste loss (hyposmia, anosmia, dysgeusia).
- Symptoms persisted eight months post-stroke, affecting food identification and taste perception.
- Patients compensated by over-salting/sweetening food, impacting comorbid conditions like hypertension and diabetes.
Findings:
- Both patients showed reduced ability to detect subtle odors and identify tastes beyond 'sweet'.
- The dysfunction led to decreased food enjoyment, weight loss, and reduced energy.
- Impact extended to social and family activities, affecting overall well-being.
Implications:
- Smell and taste dysfunction are potentially serious outcomes of even minor strokes.
- Healthcare professionals should assess these sensory deficits before patient discharge.
- Intervention and support are necessary for patients and caregivers experiencing these post-stroke sensory changes.
Related Concept Videos
Taste Buds and Receptors
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
Olfactory Receptors: Location and Structure
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Transient Ischemic Attack l: Introduction
A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...