Vitamin K- what is known regarding bariatric surgery patients: A systematic review

Vitamin K, a fat-soluble vitamin, is involved in blood coagulation, bone mineralization, inhibition of vascular calcification and regulation of numerous enzyme systems. Patients who undergo bariatric surgery (BS), especially procedures that involve a malabsorptive component, are prone to develop vitamin K deficiency (VKD). The causes of VKD include decreased absorptive surface areas, steatorrhea, bacterial overgrowth, marked reduction of carriers of vitamin K, decrease in vitamin K intake and modifications of gut microbiota.
Source: Surgery for Obesity and Related Diseases - Category: Surgery Authors: Tags: Review articles Source Type: research

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The non-vitamin K oral anticoagulant dabigatran etexilate (dabigatran) is increasingly prescribed to patients with non-valvular atrial fibrillation and venous thromboembolism. Adipose tissue (AT) inflammation during obesity plays a crucial role in the development of insulin resistance, type II diabetes and atherogenesis. The aim of the present study was to investigate the effects of thrombin inhibition by dabigatran in a combined model of diet-induced obesity and atherosclerosis.
Source: Atherosclerosis - Category: Cardiology Authors: Source Type: research
Vitamin K, a fat-soluble vitamin, is involved in blood coagulation, bone mineralization, inhibition of vascular calcification, and regulation of numerous enzyme systems. Patients who undergo bariatric surgery (BS), especially procedures that involve a malabsorptive component, are prone to develop vitamin K deficiency (VKD). The causes of VKD include decreased absorptive surface areas, steatorrhea, bacterial overgrowth, marked reduction of carriers of vitamin K, decrease in vitamin K intake, and modifications of gut microbiota.
Source: Surgery for Obesity and Related Diseases - Category: Surgery Authors: Tags: Review article Source Type: research
Conclusions: Cerium nitrate may lead to vascular decalcification and chelation of reactive oxygen species, and prevent infection. Cerium nitrate-silver sulfadiazine was associated with better outcomes and should be tested in a prospective comparative trial in CPX patients.Dermatology
Source: Dermatology - Category: Dermatology Source Type: research
The objective of this study was to study the prevalence and clinico-hematological profile of factor VII-deficient patients. METHODS: It is a retrospective observational study of probable inherited factor VII deficiency covering 18 months. Their clinical profile, family history, investigation and treatment records were studied in detail. RESULTS: The study group comprised of total 12 factor VII deficiency cases with mean age of 17.5 years of onset of symptoms. The commonest symptom was menorrhagia (41.6%) followed by epistaxis (25%) and easy bruisability (16.6%). These 12 patients when categorized according to bleed...
Source: Hematology - Category: Hematology Tags: Hematology Source Type: research
CONCLUSIONS: Vkorc1l1 promotes adipogenesis and possibly obesity. Downregulation of Vkorc1l1 increases intracellular vitamin K2 level and impedes preadipocyte differentiation. PMID: 29963761 [PubMed - as supplied by publisher]
Source: Obesity - Category: Eating Disorders & Weight Management Authors: Tags: Obesity (Silver Spring) Source Type: research
The aim of the study was to investigate whether treatment with non-vitamin K antagonist oral anticoagulants (NOACs) is effective and well tolerated in real-life patients following venous thromboembolism (VTE) associated with severe inherited thrombophilia. We evaluated 33 consecutive patients with severe inherited thrombophilia, defined as the presence of deficiencies in protein C, protein S, or anti-thrombin, homozygous factor V Leiden and prothrombin G20210A mutations, or combined defects. The patients were recruited from March 2010 to December 2015 and followed till July 2016. Rivaroxaban was used in 23 patients (70%), ...
Source: Blood Coagulation and Fibrinolysis - Category: Hematology Tags: Original Articles Source Type: research
Authors: Pepe F, DE Luca F, Stracquadanio M, Garraffo C, Santonocito VC, Privitera A Abstract Pregnancy after bariatric surgery has some peculiarities related to obesity, type of surgery, amount of weight loss, time elapsed from the surgery and adherence to medical prescriptions. Pregnant woman is at risk of nutritional deficiencies and it is unclear whether there is an increased incidence of intestinal complications during pregnancy after bariatric surgery and whether this kind of complications are more frequent during cesarean section. The fetus is at high risk of prematurity and fetal growth restriction, but the...
Source: Minerva Ginecologica - Category: OBGYN Tags: Minerva Ginecol Source Type: research
Conclusions The results of our study show that the prevalence of vitamin and mineral deficiencies after BPD-DS is 81.4 % at a minimum follow-up of 5 years. The initial prescription of micronutrient supplementation and further adjustments during the first follow-up were insufficient to avoid long-term micronutrient deficiencies. Life-long monitoring of micronutrients at a specialized bariatric center and possibly a better micronutrient supplementation, is crucial to avoid a deficient micronutrient status at every stage after malabsorptive bariatric surgery.
Source: Obesity Surgery - Category: Surgery Source Type: research
Reduced serum vitamin K levels are frequently observed after biliopancreatic diversion (BPD) and BPD with duodenal switch (BPD/DS). The criteria for treatment are not precisely defined.
Source: Surgery for Obesity and Related Diseases - Category: Surgery Authors: Tags: Original articles Source Type: research
Conclusion High numbers of vitamin and mineral deficiencies were found after BPD and BPD/DS despite vitamin supplementation. Anaemia, ID and deficiencies for fat-soluble vitamins are frequently diagnosed. Repeated monitoring is necessary to detect deficiencies at an early stage. Taking all of this into consideration, a stringent multivitamin supplementation regimen should be implemented after malabsorptive procedures.
Source: Obesity Surgery - Category: Surgery Source Type: research
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