HemoChat is an evidence-based AI medical search tool covering all major clinical domains, powered by 46,298 SNOMED-CT concepts, clinical guidelines, and live PubMed literature.

What medical domains does HemoChat cover?

HemoChat covers all major medical domains including cardiology, oncology, neurology, hematology, pulmonology, endocrinology, gastroenterology, psychiatry, nephrology, rheumatology, musculoskeletal, and more — with 46,298 SNOMED-CT concepts.

Is HemoChat a replacement for clinical judgment?

No. HemoChat is for clinical reference only and is not a substitute for professional medical judgment. Always consult qualified healthcare professionals for medical decisions.

What AI technology does HemoChat use?

HemoChat uses a hybrid GraphRAG + VectorRAG pipeline combining Neo4j knowledge graphs with FAISS vector search and an LLM for answer generation.

Mediterranean macrothrombocytopenia — Clinical Guidelines

Overview

Familial Mediterranean fever (FMF) is a monogenic autoinflammatory disorder characterized by recurrent episodes of fever and serositis, often involving the abdomen, chest, and joints. It is most prevalent in populations of Mediterranean and Middle Eastern descent 1 6.

Diagnosis

Key Diagnostic Criteria: Recurrent fevers, serositis (abdominal, pleural, pericardial pain), arthritis, and erysipelas-like skin lesions 13.

Recommended Tests: Genetic testing for MEFV gene mutations is definitive 1 13.

Grading: Severity can be assessed using objective criteria reflecting suffering and disability, categorized into mild, intermediate, and severe levels 10.

Management

First-Line Treatment: Colchicine is the mainstay of therapy, typically dosed at 1-2 mg/day in adults, adjusted for efficacy and tolerability 12 9.

Adjunctive Treatments:

- IL-1 Inhibitors: Used in colchicine-resistant or intolerant patients (e.g., anakinra, canakinumab) 1 7. - Tonsillectomy: May reduce disease severity in patients with chronic tonsillitis 2. - Vitamin D Supplementation: Considered in cases of deficiency, though evidence is moderate 4 8.

Special Populations

Pediatrics: Large pediatric cohorts show frequent inflammatory comorbidities; management similar to adults but with close monitoring 3.

Comorbidities:

- Oxidative Stress and Inflammation: Evaluate vitamin D status and consider supplementation 4 8. - Helicobacter pylori: Distinguish from FMF attacks; consider eradication therapy if present 5.

Elderly: Specific management considerations not extensively covered in abstracts; general principles apply with caution 10.

Key Recommendations

Genetic Testing for Diagnosis: Utilize MEFV gene mutation testing for definitive diagnosis of FMF (Evidence: Strong 13).

Colchicine as First-Line Therapy: Initiate colchicine therapy at 1-2 mg/day for FMF management (Evidence: Strong 12).

Consider IL-1 Inhibitors for Refractory Cases: Use IL-1 inhibitors in patients who are colchicine-resistant or intolerant (Evidence: Moderate 1 7).

Evaluate and Manage Vitamin D Deficiency: Assess vitamin D levels and consider supplementation in deficient FMF patients (Evidence: Moderate 4 8).

Consider Tonsillectomy in Chronic Tonsillitis: Evaluate tonsillectomy for FMF patients with chronic tonsillitis to potentially reduce disease severity (Evidence: Moderate 2).

References

1 Uzun Bektaş A, Bora B, Ünsal E. Comparative evaluation of ChatGPT and LLaMA for reliability, quality, and accuracy in familial Mediterranean fever. European journal of pediatrics 2025. link 2 Ibrahim AA, Alsayed AA, Mahmoud MA, Attalla Hassan AH, Hamdan AM. The effect of tonsillectomy on clinical manifestations in Familial Mediterranean fever. International journal of pediatric otorhinolaryngology 2025. link 3 Ozdel S, Coşkuner T, Demirkan F, Torun R, Aydın EA, Bağlan E et al.. Inflammatory comorbidities ın the largest pediatric Familial Mediterranean fever cohort: a multicenter retrospective study of Pediatric Rheumatology Academy (PeRA)-Research Group (RG). Clinical rheumatology 2024. link 4 Alesh MB, Keti DB, Kısaarslan AP, Muhtaroğlu S, Taşkın SN. Hidden threat in familial Mediterranean fever: subclinical inflammation, oxidative stress and their relationship with vitamin D status. Turkish journal of medical sciences 2022. link 5 Lacout C, Savey L, Bourguiba R, Giurgea I, Amselem S, Hoyeau N et al.. "Helicobacter pylori in familial mediterranean fever: A series of 120 patients from literature and from france". Helicobacter 2021. link 6 Kocyigit BF, Akyol A. Bibliometric analysis of publication activity in the field of familial Mediterranean fever in 2010-2019: a Scopus-based study. Rheumatology international 2021. link 7 Maggio MC, Ceccherini I, Grossi A, Gattorno M, Corsello G. PAPA and FMF in two siblings: possible amplification of clinical presentation? A case report. Italian journal of pediatrics 2019. link 8 Turhan T, Doğan HO, Boğdaycioğlu N, Eyerci N, Omma A, Sari İ et al.. Vitamin D status, serum lipid concentrations, and vitamin D receptor (VDR) gene polymorphisms in Familial Mediterranean fever. Bosnian journal of basic medical sciences 2018. link 9 Cohen O, Locketz G, Hershko AY, Gorshtein A, Levy Y. Colchicine-clarithromycin-induced rhabdomyolysis in Familial Mediterranean Fever patients under treatment for Helicobacter pylori. Rheumatology international 2015. link 10 Mor A, Shinar Y, Zaks N, Langevitz P, Chetrit A, Shtrasburg S et al.. Evaluation of disease severity in familial Mediterranean fever. Seminars in arthritis and rheumatism 2005. link 11 Braun E, Schapira D, Guralnik L, Azzam ZS. Acute vasculitis with multiorgan involvement in a patient with familial Mediterranean fever. The American journal of the medical sciences 2003. link 12 Ben-Chetrit E, Levy M. Colchicine: 1998 update. Seminars in arthritis and rheumatism 1998. link80028-0) 13 Livneh A, Langevitz P, Zemer D, Zaks N, Kees S, Lidar T et al.. Criteria for the diagnosis of familial Mediterranean fever. Arthritis and rheumatism 1997. link 14 Moskovitz B, Bolkier M, Nativ O. Acute orchitis in recurrent polyserositis. Journal of pediatric surgery 1995. link90428-x) 15 Knockaert DC, Malysse IG, Peetermans WE. Ankylosing spondylitis. An unusual manifestation of familial Mediterranean fever. Report of a case complicated by amyloidosis and polyneuropathy. Clinical rheumatology 1989. link

Mediterranean macrothrombocytopenia