Root Cause Analysis in Greenville, SC
Root Cause Analysis at IHP Greenville. Dr. Hendry, DAOM — functional medicine, root-cause diagnostics, personalized care. Call (864) 365-6156.
"I have to say that finding this clinic was a true miracle. At the beginning of 2019 I got to the low point of my health and landed in the ER. Medical doctors told me I just had a GI issue and should just take some meds for it. Dr. Hendry changed everything for me."
— Tat V. · April 2020 · Google Review
A 42-year-old woman with IBS, Hashimoto's, generalized anxiety, chronic migraine, fibromyalgia, and recurrent sinusitis has been managed by five different specialists. No one has asked why she developed all six conditions in the span of ten years. Root cause analysis does. The timeline reveals childhood antibiotic exposure, a gastrointestinal illness at 24, thyroid antibodies first noted at 28 but not treated, extreme occupational stress at 34, and progressive symptom accumulation thereafter. That sequence describes one biological origin story — gut dysbiosis driving intestinal permeability driving systemic antigen exposure driving the autoimmune, neuroinflammatory, and pain sensitization consequences downstream. One upstream mechanism. Six diagnostic labels. One coherent treatment direction.
How Root Cause Analysis Works
Root cause analysis at IHP begins with a comprehensive intake (90 minutes) that covers your complete health history, life timeline, environmental exposures, and the chronological sequence of symptom development. Dr. Hendry uses this information alongside Chinese medical diagnosis and targeted functional medicine testing to build a root cause map — identifying which biological systems are primary drivers of your condition and in what sequence they should be addressed.
Conditions Treated with Root Cause Analysis
Timeline-Based Root Cause Investigation vs. Diagnosis-and-Drug-Match in Primary Care
Conventional primary care is optimized for acute episodic illness, where a complaint maps to a diagnosis that maps to a treatment. This model performs well for strep throat and appendicitis. It performs poorly for the 42-year-old woman who has accumulated six diagnoses over ten years: IBS, Hashimoto's thyroiditis, generalized anxiety disorder, chronic migraine, fibromyalgia, and recurrent sinusitis, each managed by a different specialist with a different medication. No one has constructed a unified biological narrative connecting these diagnoses. Our intake process takes 90 minutes and maps the full timeline: childhood antibiotic exposure at ages 6, 8, and 11; first IBS symptoms at 22; a year abroad with GI illness at 24; the onset of thyroid antibodies noted at 28 but not treated; a period of extreme work stress at 34 coinciding with the first anxiety diagnosis; and progressive symptom accumulation thereafter. The narrative that emerges is a gut dysbiosis origin story, with intestinal permeability driving systemic antigen exposure, Hashimoto's autoimmunity, neuroinflammatory anxiety, and pain sensitization as downstream expressions of a single upstream process. One biological root addressed through gut restoration, thyroid optimization, and HPA axis normalization begins to resolve symptoms across six diagnostic categories simultaneously, because those categories share a common biological driver.
Research & Evidence
The functional medicine root cause framework applies a systems-biology approach to clinical evaluation, mapping each patient's individual timeline of antecedents, triggers, and mediators rather than matching a diagnostic code to a pharmacological agent. Beidelschies et al. (JAMA Netw Open. 2019) compared patient-reported outcomes at six months between individuals receiving functional medicine care at a Cleveland Clinic Center versus conventional primary care at the same institution, finding significantly greater improvements in PROMIS global health scores in the functional medicine group, with the largest effect sizes in patients with previously unresolved chronic conditions. Bland (The Disease Delusion. 2014) articulated why the diagnosis-and-drug-match model fails chronic multi-system illness: a diagnosis names the destination but not the route, and two patients with identical diagnoses may have arrived via completely different biological pathways requiring entirely different interventions. Dantzer et al. (Nat Rev Neurosci. 2008) demonstrated that the same inflammatory cytokine profile, elevated IL-6 and TNF-alpha, can produce depression in one patient, chronic pain in another, and cognitive dysfunction in a third, depending on which neural circuits have the highest inflammatory receptor density. Our intake process produces a visual clinical timeline spanning from early life exposures through current symptoms, identifying the specific sequence of events that shifted the patient from resilience to dysfunction.
Your First Appointment
Think carefully about the chronological sequence of your health history before your appointment: when did you first feel unwell? What preceded it? What has changed over time? The timeline of illness often reveals the causal sequence. Bring all prior labs, diagnoses, and treatment records.
Why Dr. Hendry for Root Cause Analysis
Dr. Hendry's research training — which requires hypothesis-driven investigation and systematic evidence evaluation — translates directly into clinical root cause analysis. His ability to synthesize information across multiple biological systems is the core skill required for this work.