A 76-year-old man is brought to the primary care office by his wife with concerns about his worsening memory. He is a retired lawyer who has recently been getting lost in the neighborhood where he has lived for 35 years. He was recently found wandering and has often been brought home by neighbors. When asked about this, he becomes angry and defensive and states that he was just trying to go to the store and get some bread.
His wife expressed concerns about his ability to make decisions as she came home two days ago to find that he allowed an unknown individual into the home to convince him to buy a home security system which they already have. He has also had trouble dressing himself and balancing his checkbook. At this point, she is considering hiring a day-time caregiver help him with dressing, meals and general supervision why she is at work.
Past Medical History: Gastroesophageal reflux (treated with diet); is negative for hypertension, hyperlipidemia, stroke or head injury or depression
Allergies: No known allergies
Medications: None
Family History
· Father deceased at age 78 of decline related to Alzheimer’s disease
· Mother deceased at age 80 of natural causes
· No siblings
Social History
· Denies smoking
· Denies alcohol or recreational drug use
· Retired lawyer
· Hobby: Golf at least twice a week
Review of Systems
· Constitutional: Denies fatigue or insomnia
· HEENT: Denies nasal congestion, rhinorrhea or sore throat.
· Chest: Denies dyspnea or coughing
· Heart: Denies chest pain, chest pressure or palpitations.
· Lymph: Denies lymph node swelling.
· Musculoskeletal: denies falls or loss of balance; denies joint point or swelling
General Physical Exam
· Constitutional: Alert, angry but cooperative
· Vital Signs: BP-128/72, T-98.6 F, P-76, RR-20
· Wt. 178 lbs., Ht. 6’0″, BMI 24.1
HEENT
· Head normocephalic; Pupils equal and reactive to light bilaterally; EOM’s intact
Neck/Lymph Nodes
· No abnormalities noted
Lungs
· Bilateral breath sounds clear throughout lung fields.
Heart
· S1 and S2 regular rate and rhythm, no rubs or murmurs.
Integumentary System
· Warm, dry and intact. Nail beds pink without clubbing.
Neurological
· Deep tendon reflexes (DTRs): 2/2; muscle tone and strength 5/5; no gait abnormalities; sensation intact bilaterally; no aphasia
Diagnostics
· Mini-Mental State Examination (MMSE): Baseline score 12 out of 30 (moderate dementia)
· MRI: hippocampal atrophy
· Based on the clinical presentation and diagnostic findings, the patient is diagnosed with Alzheimer’s type dementia.
Discussion Questions
1. Compare and contrast the pathophysiology between Alzheimer’s disease and frontotemporal dementia.
2. Identify the clinical findings from the case that supports a diagnosis of Alzheimer’s disease.
3. Explain one hypothesis that explains the development of Alzheimer’s disease
4. Discuss the patient’s likely stage of Alzheimer’s disease.
| DISCUSSION CONTENT | |||
| Category | Points | % | Description |
| Application of Course Knowledge | 30 | 30% | The student:
1. Compares and contrasts the pathophysiology betweenAlzheimer’s disease and frontotemporal dementia. 2. Identifies the clinical findings from the case that supports a diagnosis of Alzheimer’s disease. 3. Explains one hypothesis that explains the development of Alzheimer’s disease. 4. Discusses the patient’s likely stage of Alzheimer’s disease. |
| Support from Evidence-Based Practice | 30 | 30% | 1. Initial discussion post is supported with appropriate, scholarly sources; AND
2. Sources are published within the last 5 years (unless it is the most current CPG); AND 3. Reference list is provided and in-text citations match; AND 4. All answers are fully supported with an appropriate EBM argument |
| Interactive Dialogue | 30 | 30% | In addition to providing a response to the initial post due by Wednesday, 11:59 p.m. MT, student provides a minimum of two responses weekly on separate days; e.g., replies to a post from a peer; AND faculty member’s question; OR two peers if no faculty question. A response to faculty could include a question posed to a student or the entire class or a faculty question directed towards another student. AND
· Evidence from appropriate scholarly sources are included; AND · Reference list is provided and in-text citations match |
| · | 90 | 90% | Total CONTENT Points = 90 pts |
| DISCUSSION FORMAT | |||
| Category | Points | % | Description |
| Organization | 5 | 5% | 1. Case study responses are presented in a logical format; AND
2. Responses are in sequence with the numbered questions; AND 3. The case study response is understandable and easy to follow; AND 4. All responses are relevant to the case topic |
| Format | 5 | 5% | · Discussion post has minimal grammar, syntax, spelling, punctuation, or APA format errors*
(*) APA style references and in text citations are required; however, there are no deductions for errors in indentation or spacing of references. All elements of the reference otherwise must be included. |
| 10 | 10% | Total FORMAT Points = 10pts |
A 76-year-old man is brought to the primary care office by his wife with concerns about his worsening memory
- **Pathophysiology of Alzheimer’s disease vs. Frontotemporal Dementia (FTD):**
– Alzheimer’s Disease (AD): AD is characterized by the accumulation of beta-amyloid plaques and tau protein tangles in the brain, leading to neuronal death and progressive cognitive decline. These pathological changes primarily affect the hippocampus and cerebral cortex, leading to memory impairment and executive dysfunction. AD typically presents with memory loss as an early and prominent feature.
– Frontotemporal Dementia (FTD): FTD involves the degeneration of the frontal and temporal lobes of the brain, resulting in changes in personality, behavior, and language abilities. Unlike AD, FTD is not associated with significant beta-amyloid plaque deposition. Instead, it is characterized by abnormal accumulation of proteins such as tau or TDP-43. FTD commonly presents with behavioral variant FTD (bvFTD), where patients exhibit disinhibition, apathy, social withdrawal, and compulsive behaviors, or primary progressive aphasia (PPA), which manifests as language difficulties.
- **Clinical Findings supporting a diagnosis of Alzheimer’s disease:**
– Progressive memory impairment: The patient’s worsening memory, getting lost in familiar surroundings, and difficulty with activities of daily living (e.g., dressing, balancing checkbook) are consistent with the hallmark cognitive decline seen in Alzheimer’s disease.
– Behavioral changes: The patient’s angry and defensive reaction when asked about getting lost and allowing a stranger into the home may indicate disinhibition and impaired judgment, which are common behavioral symptoms in Alzheimer’s disease.
– Family history: Having a parent with Alzheimer’s disease increases the risk of developing the condition.
– Cognitive assessment: The Mini-Mental State Examination (MMSE) score of 12 out of 30 indicates moderate cognitive impairment, further supporting the diagnosis.
- **Hypothesis explaining the development of Alzheimer’s disease:**
– Amyloid Hypothesis: This hypothesis proposes that the accumulation of beta-amyloid plaques in the brain is the primary trigger for Alzheimer’s disease. According to this theory, abnormal processing of amyloid precursor protein (APP) leads to the production and deposition of beta-amyloid plaques, which in turn initiates a cascade of events including neuroinflammation, tau hyperphosphorylation, neuronal dysfunction, and ultimately cell death. This hypothesis has been a central focus of Alzheimer’s research and has guided the development of therapeutic strategies targeting beta-amyloid.
- **Likely stage of Alzheimer’s disease:**
– Based on the clinical presentation, the patient is likely in the moderate stage of Alzheimer’s disease. This is supported by his significant cognitive impairment, functional decline in activities of daily living, and behavioral changes. The MMSE score of 12 out of 30 indicates moderate cognitive impairment, and the presence of hippocampal atrophy on MRI suggests advanced disease progression. In the moderate stage, patients typically require assistance with basic activities such as dressing and grooming, as well as supervision to ensure their safety.
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