A newly defined substage of late-stage Alzheimer's disease, the “Dementia Gap”: Can sedation to unconsciousness to relieve patients' intolerable suffering be moral?
- 1Caring Advocates, Sausalito, CA, USA
Abstract
Advanced Alzheimer's disease is a terminal illness causing more intense, prolonged suffering than clinicians generally recognize. At least 500,000 Americans are trapped in the “Dementia Gap”, a previously unidentified substage of advanced dementia. Patients lack capacity to voluntarily stop eating and drinking but can still eat and drink independently, making “dementia-specific” living wills ineffective until further disease progression requires assistance with oral feeding and hydrating. Additionally, patients experience “Non-Observable Suffering”: inner emotional angst, inexpressible physical pain, and bi-directional suffering shared with loved ones. A dangerous non sequitur fallacy can lead casual observers to extrapolate peaceful inner states from withdrawn external behavior: “She's not suffering; she's just sitting there.” To effectively relieve intolerable suffering, this article introduces “Moderate Anesthesia”—palliative sedation to unconsciousness modified to be clearly distinguishable from euthanasia. Cases demonstrate moral justification grounded in Sulmasy's “Reinvented Rule of Double Effect,” “Parsimonious Direct Sedation,” or the Principle of Proportionality. Two Dementia Gap patients the author treated are compared with two advanced cancer patients. Two withdrawn patients “awakened” through skillful interviewing, exemplifying this ethical warning: diligent efforts to detect and relieve non-observable suffering should precede implementing treatments of last resort. The article presents the “Three-Source Concordance” protocol using an illustrated patient decision aid and polling Patient Decision Committee members’ substituted judgments to confirm the clinical appropriateness of implementing POLSTs that patients completed during advance care planning. A 42% cumulative lifetime dementia risk means many of us may reach the Dementia Gap. Launching the ARISE movement—Advocate by Recognizing and Investigating Suffering's (hidden) Existence—and convening expert panels to develop practice guidelines are moral imperatives.
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BibTeX
@article{terman2026newly,
title = {{A newly defined substage of late-stage Alzheimer's disease, the “Dementia Gap”: Can sedation to unconsciousness to relieve patients' intolerable suffering be moral?}},
author = {Stanley A. Terman},
journal = {Journal of Alzheimer's Disease Reports},
year = {2026},
month = jul,
doi = {10.1177/25424823261460085},
url = {https://doi.org/10.1177/25424823261460085},
note = {CC BY-NC 4.0},
}
RIS
TY - JOUR
TI - A newly defined substage of late-stage Alzheimer's disease, the “Dementia Gap”: Can sedation to unconsciousness to relieve patients' intolerable suffering be moral?
AU - Stanley A. Terman
PY - 2026
DA - 2026/07/08
JO - Journal of Alzheimer's Disease Reports
DO - 10.1177/25424823261460085
UR - https://doi.org/10.1177/25424823261460085
AB - Advanced Alzheimer's disease is a terminal illness causing more intense, prolonged suffering than clinicians generally recognize. At least 500,000 Americans are trapped in the “Dementia Gap”, a previously unidentified substage of advanced dementia. Patients lack capacity to voluntarily stop eating and drinking but can still eat and drink independently, making “dementia-specific” living wills ineffective until further disease progression requires assistance with oral feeding and hydrating. Additionally, patients experience “Non-Observable Suffering”: inner emotional angst, inexpressible physical pain, and bi-directional suffering shared with loved ones. A dangerous non sequitur fallacy can lead casual observers to extrapolate peaceful inner states from withdrawn external behavior: “She's not suffering; she's just sitting there.” To effectively relieve intolerable suffering, this article introduces “Moderate Anesthesia”—palliative sedation to unconsciousness modified to be clearly distinguishable from euthanasia. Cases demonstrate moral justification grounded in Sulmasy's “Reinvented Rule of Double Effect,” “Parsimonious Direct Sedation,” or the Principle of Proportionality. Two Dementia Gap patients the author treated are compared with two advanced cancer patients. Two withdrawn patients “awakened” through skillful interviewing, exemplifying this ethical warning: diligent efforts to detect and relieve non-observable suffering should precede implementing treatments of last resort. The article presents the “Three-Source Concordance” protocol using an illustrated patient decision aid and polling Patient Decision Committee members’ substituted judgments to confirm the clinical appropriateness of implementing POLSTs that patients completed during advance care planning. A 42% cumulative lifetime dementia risk means many of us may reach the Dementia Gap. Launching the ARISE movement—Advocate by Recognizing and Investigating Suffering's (hidden) Existence—and convening expert panels to develop practice guidelines are moral imperatives.
SN - 2542-4823
ER -