Case Study, CSM: Constitutional CNS

Constitutional CNS — Developmental Vulnerability and Autoimmune Vasculopathy Laurel Fitzhugh — May 20, 2026 | Status: Draft — working document Laurel Fitzhugh presents with a decades-long multi-system clinical picture that has been managed as a collection of separate diagnoses. The evidence, reviewed in full, points toward two converging constitutional factors — a developmentally established neurological … Read more

Case Study, CSM: Vagal Tone Deficit

Vagal Tone Deficit — Mechanistic Reference  I. The Foundational Deficit: Vagal ToneContentsI. The Foundational Deficit: Vagal ToneA. Developmental impairmentB. ACE score / early chronic stressC. Pernicious anemia — duration unknown, likely longstandingD. Ischemic CVAs — 2016, 2018E. Chronic inflammatory reflex fatigueF. Summary: cumulative vagal deficitII. The Gut-Barrier-Immune AxisA. Early microbiome disruptionB. Intestinal barrier dysfunction — … Read more

Case Study, CSM: Neurological Patterns

Neurological Pattern Reference Personal Reference — Laurel Fitzhugh Initial capture: May 2026 | Updated: May 19, 2026 Status: Draft — incomplete, requires updating as new information develops I. The Central QuestionContentsI. The Central QuestionII. The Chronological PictureThe Small Vessel Disease Progression — SummaryThe Vestibular and Balance System — Cumulative Insult PatternHPA Axis DysregulationIII. The Unified … Read more

Case Study, CSM: SetPoint VNS Responder Analysis

SetPoint VNS — Responder Analysis ThesisContentsThesisI. Factors Predicting Strong Positive ResponseIa. The Five-Factor Vagal Deficit as Amplified OpportunityIb. Pharmacological Phenotype Split as Predictor of Strong Positive ResponseIc. Biologic Failure Pattern as Indirect EvidenceId. HMGB1 as Unaddressed Late-Phase Disease DriverIe. Natural Intervention Tolerance as PredictorIf. Reset Dynamic and VNS as Continuous Regulatory ToneII. Factors Predicting Adverse … Read more

Case Study, CSM: Gut Foundational Reference

Gut Barrier and Dysbiosis — Foundational Reference The gut system is the second major constitutional factor in this clinical picture. It is tightly coupled to the CNS system through the gut-vagus connection and through continuous inflammatory signaling originating at the intestinal barrier. LPS translocation increases the inflammatory load while the compromised vagal anti-inflammatory pathway can … Read more

Case Study, CSM: Pharmacological Phenotype

Pharmacological Phenotype: Laurel Fitzhugh 20 May 2026 The PatternContentsThe PatternThe Two Core PhenomenaAmplified and Unexpected Mechanism ResponseSensitization Through Continuous ExposureProgressive Loss of Regulatory ToolsThe Deeper Mechanism — Compensatory Equilibrium and System ArchitectureThe Reset DynamicThe Drug ExamplesTramadol — Unexpected Anti-Inflammatory DurabilityHydroxychloroquine — Overnight Response to a Weeks-Long DrugIbuprofen — PRN Tolerance, Daily SensitizationMethotrexate — Catastrophic FailureBiologics … Read more

Case Study, CSM: Iron-Triggered Dysbiosis

Iron-Triggered Dysbiosis and Locked Attractor State This document presents a case-based analytical framework, supported by temporal, microbiological, and clinical evidence, for the following: two high-dose intravenous iron infusions in late 2023 and early 2024 acted as the proximate trigger for catastrophic and durable gut microbiome collapse in a host with pre-existing constitutional vulnerability. The collapse … Read more

Case Study, CSM: Helminthic Therapy

Helminthic Therapy — Personal Reference Necator americanus (human hookworm) colonization has been maintained since August 2020. This document covers its mechanism relevant to this patient’s picture, clinical response history, the impact of the 2024 dysbiosis event on efficacy, current status, and its relationship to vagus nerve stimulation as a parallel intervention. Mechanism Helminthic therapy operates … Read more