|Three different presentation of same pathophysiology.|
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|PMID: 23322977 Owner: NLM Status: PubMed-not-MEDLINE|
|We report three male patients of younger age group presented with acute vein thrombosis of different sites, right lower limb, cortical venous sinuses thrombosis with cerebral vascular accident and third case is mesenteric vein thrombosis. All patients were Vegetarian, had low level of cobalamin with marked hyper homocysteinemia with normal serum and red cell folic acid. The low Cobalamin level was not suspected secondary to pernicious anemia, based on the fact that there was no evidence of atrophic gastritis and an absence of antiparietal cell antibodies. There were no evident of immobilization, recent surgery, malignancy, antiphospholipid antibody, myeloproliferative disorder, and hormone replacement therapy. No deficiencies in protein C, protein S, or antithrombin III, normal factor V Leiden, no prothrombin gene mutation 20210A and no clone for paroxysmal nocturnal hemoglobin-urea were detected, no cause was found for the thrombosis apart from their secondary hyperhomocysteinemia.|
|Algherbawe Mushtak; Fahmi Yousef Khan; Baidaa Aldehwe; Ahmed Abdulrahman Al-Ani|
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|Type: Journal Article|
|Title: Acta informatica medica : AIM : journal of the Society for Medical Informatics of Bosnia & Herzegovina : časopis Društva za medicinsku informatiku BiH Volume: 20 ISSN: 0353-8109 ISO Abbreviation: Acta Inform Med Publication Date: 2012 Sep|
|Created Date: 2013-01-16 Completed Date: 2013-01-17 Revised Date: 2013-05-30|
Medline Journal Info:
|Nlm Unique ID: 101147064 Medline TA: Acta Inform Med Country: Bosnia and Hercegovina|
|Languages: eng Pagination: 190-1 Citation Subset: -|
|Department of medicine, Hamad General Hospital, Doha, Qatar.|
|APA/MLA Format Download EndNote Download BibTex|
Journal ID (nlm-ta): Acta Inform Med
Journal ID (iso-abbrev): Acta Inform Med
Journal ID (publisher-id): AIM
Publisher: AVICENA, d.o.o., Sarajevo
© 2012 AVICENA
Received Day: 15 Month: 6 Year: 2012
Accepted Day: 8 Month: 8 Year: 2012
Print publication date: Month: 9 Year: 2012
Volume: 20 Issue: 3
First Page: 190 Last Page: 191
PubMed Id: 23322977
Publisher Id: AIM-20-190
|THREE DIFFERENT PRESENTATION OF SAME PATHOPHYSIOLOGY|
|Fahmi Yousef Khan2|
|Ahmed Abdulrahman Al-Ani4|
1Department of medicine, Hamad General Hospital, Doha, Qatar
2Department of medicine, Hamad General Hospital, Doha-Qatar
3Alwakrha primary health center, Doha, Qatar
4Department of medicine, Hamad General Hospital, Doha, Qatar
|Correspondence: Corresponding author: Al-Gherbawe Mushtak, MD, FRCP, Consultant Internal Medicine, Department of Medicine, Hamad general Hospital, Doha, Qatar, E-mail: email@example.com, PO Box 3050, Tel: 0097455220486, Fax 009744392273
Hyper homocysteinemia is a risk factor for arterial and venous thrombosis. It is asserted that in deficiency of vitamin B12 will increase thrombotic incidences due to increase in homocysteine and upon substituting the vitamin, this risk decreases (1). However, this situation is not clear and there are a lot of conflict views.
28 year old male Nepalese patient presented with swelling and pain of his right lower limb of four days durations, there were no history of trauma or such problem before, no mouth or genital ulcer, skin rash, no family history. Examination revealed that his chest and heart and abdomen were normal, his lower limb was erythematic and tender of both the calf and the thigh with difference of about 4 cm in comparison to the left side, ultra sound Doppler of the right lower limb showed acute thrombosis involve the femoral, popliteal and the posterior tibial veins, His hemoglobin and MCV were normal while his B12 level was low 98 pmol/L normal (133-675) and very high level of homocysteine of 94 umol/L normal (4-12) after treatment with cobalamin his homocysteine level drop to less than ten.
29 year old Indian presented with sever headache and vomiting of one day duration, the headache was sever not associated with fever, the second day the patient had paralysis of the right side of the body, there were no fever, diplopia, incontinence. On examination was fully conscious oriented with right side upper motor neuron facial palsy with flaccid upper and lower limb with power of grade one and bilateral papilledema. His computed tomography with angiography, revealed venous sinus thrombosis along superior sagital sinus and transverse sinuses with secondary hemorrhagic infarction more on the left side (Figure 1). His Hemoglobin is 15.2 gm/dl and MCV of 106fl and peripheral smear showed macrocytosis with hyper segmented neutrophil, His vitamin 12 level of 92 pmol/L normal (133-675) and homocysteine level of 44.6 umol/L normal (4-12),with treatment his homocysteine level drop to 12.
32 year old Nepali presented with abdominal pain and vomiting of 4 day duration, there were no fever or diarrhea, his abdominal exam revealed tenderness all over abdomen with normal bowel sound. Computed tomography showed Portal vein, superior mesenteric, splenic vein thrombosis (Figure 2). His Hemoglobin is 11.2 gm/dl and MCV of 110fl and peripheral smear showed macroovalocytes red cell with hyper segmented neutrophil, His vitamin 12 less than 44 pmol/L normal (133-675) and homocysteine level of 54.4 umol/L normal (4-12), with treatment his homocysteine level drop to 10 and Cobalamin increase to 362.
Further history revealed all patients were Vegans due to religious issues and all had poor socio economic state, admitted to a profound aversion to most foods and textures, including meat, and avoided all but a limited diet since early childhood.
The prevalence of hyperhomocysteinemia in the general population is estimated to be approximately 1%, although it may vary from area to area (2). It could be caused by both genetic and acquired conditions, including folate and cobalamin deficiency (3).
Homocysteine is metabolized by one of two divergent pathways: one of them is remethylation in which homocysteine produces methionine, this reaction is catalyzed by methionine synthase, cobalamin is the precursor of methylcobalamin, which is the cofactor for methionine synthase (Figure 3).
Although studies demonstrated that hyperhomocysteinemia is an independent risk factor for premature arteriosclerotic disease in the coronary, cerebral, and peripheral arteries (4, 5), but there a lot of conflict regarding venous thrombosis, in spite of that recent meta-analyses support the notion that hyperhomocysteinemia is an independent risk factor for venous thrombosis (6, 7). Brattström et al. (8) found no significant difference in plasma homocysteine concentrations between 42 patients with VTE and healthy control subjects, although the male patients showed a tendency toward higher plasma homocysteine than male control subjects. In contrast, Bienvenu et al. (9) demonstrated a significant association between fasting plasma homocysteine and VTE, and Falcon et al. (10) reported a high prevalence of hyperhomocysteinemia in patients less than 40 years of age who had VTE. Tore Amundsen et al, demonstrate that hyperhomocysteinemia is not a frequent cause of DVT (11). Ducros et al, showed that Mild or moderate hyperhomocysteinemia does not seem to be a strong determinant in VTE (12).
With such conflicting studies we report these three cases with secondary hyperhomocysteinemia secondary to nutritional deficiency of cobalamin. our patients had no apparent risk factors for venous thrombosis other than the hyperhomocysteinemia, all of them had cobalamin deficiency and all are poor with low socioeconomic state, vegans for religious cause and their diet were deficient in meat and other B12 source like egg, milk etc. The vitamin B12 deficiency seen in our patient was considered not to be pernicious anemia, based on the fact that there was no evidence of atrophic gastritis and an absence of antiparietal cell antibodies.
In conclusion we think homocysteine is independent risk factor for deep venous thrombosis in patient with cobalamin deficiency, especially vegetarian and this may related to other associated factor which we have to look for.
|1.||Remacha AF,Souto JC,Ramila E,Perea G,Sarda MP,Fontcuberta J. Enhanced risk of thrombotic disease in patients with acquired vitamin B12 and/or folate deficiency: role of hyperhomocysteinemiaAnn HematolYear: 20028161662112454698|
|2.||Mudd SH,Levy HL,Skovby F. Scriver CR,Beaudet WS,Sly S,Valle DDisorders of transsulfurationThe Metabolic Basis of Inherited DiseaseYear: 1989New YorkMcGraw-Hill693734|
|3.||Ueland PM,Refsum H,Stabler SP,Malinow MR,Andersson A,et al. Total homocysteine in plasma or serum: methods and clinical applicationsClin ChemYear: 199339176417798375046|
|4.||Stampfer MJ,Malinow MR,Willett WC,Newcomer LM,Upson B,Ullmann D,et al. A prospective study of plasma homocyst(e)ine and risk of myocardial infarction in US physiciansJAMAYear: 19922688778811640615|
|5.||Homocysteine Studies CollaborationHomocysteine and Risk of Ischemic Heart Disease and StrokeJAMAYear: 2002288162015202212387654|
|6.||Frederiksen J,Juul K,Grande P,et al. Methylenetetrahydrofolate reductase polymorphism (C677T), hyperhomocysteinemia, and risk of ischemic cardiovascular disease and venous thromboembolism: prospective and case-control studies from the Copenhagen City Heart StudyBloodYear: 2004103046305115226189|
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|8.||Brattström L,Tengborn L,Israelsson B,Hultberg B. Plasma homocysteine in venous thromboembolismHaemostasisYear: 19912151571864556|
|9.||Bienvenu T,Ankri A,Chadefaux B,Montalescot G,Kamoun P. Elevated total plasma homocysteine, a risk factor for thrombosis: relation to coagulation and fibrinolytic parametersThromb ResYear: 1993701231298322283|
|10.||Falcon CR,Cattaneo M,Panzeri D,Martinelli I,Mannucci PM. High prevalence of hyperhomocyst(e)inemia in patients with juvenile venous thrombosisArterioscler ThrombYear: 199414108010838018663|
|11.||Amundsen TO,Ueland MG,Waage AN. Plasma Homocysteine Levels in Patients with Deep Venous ThrombosisArteriosclerosis, Thrombosis, and Vascular BiologyYear: 19951513211323|
|12.||Ducros V,Barro C,Yver J,Pernod G,Polack B,et al. Should Plasma Homocysteine Be Used as a Biomarker of Venous thromboembolism? A Case-Control StudyClinical and Applied Thrombosis/HemostasisYear: 200915551752218818229|
Keywords: Key words Homocysteine, Cobalamin deficiency, venous thrombosis..
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