Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Pilot Study to Determine the Feasibility of Conducting a Randomized Clinical Trial Comparing Fondaparinux Sodium (Arixtra) Once Daily With Enoxaparin (Lovenox®) Twice Daily With Respect to Preventing VTE After Bariatric Surgery in Obese Patients
Brief Summary: This pilot study is designed to determine the feasibility of conducting a randomized clinical trial comparing fondaparinux sodium (Arixtra) once daily with enoxaparin (Lovenox®) twice daily with respect to preventing deep vein thrombosis (DVT) and pulmonary embolism (PE) after bariatric surgery in obese patients.


Options:
A: Inclusion Criteria:

1. Men or women 18 years or older.
2. Body mass index (BMI) of 35kg/m2 or greater.
3. Undergoing laparoscopic bariatric surgery, i.e., laparoscopic sleeve gastrectomy, laparoscopic Roux-en Y gastric bypass or laparoscopic duodenal switch.

Exclusion Criteria:

1. History of previous deep vein thrombosis.
2. History of previous pulmonary emboli.
3. History of documented clotting/coagulation disorder.
4. History of cancer.
5. Weight \< 50 kg or \> 200 kg or unable to fit in MRI scanner.
6. Presence of metallic foreign bodies
7. Recent history of smoking (within the last year).
8. History of venous stasis disease.
9. History of obesity hypoventilation syndrome.
10. Patients who are unable to lay flat for extended periods of time or are claustrophobic.
11. Patients who have a pacemaker, an implanted defibrillator or certain other implanted or electronic or metallic devices (implanted medical or metallic devices, shrapnel, or metal).
12. History of hypersensitivity reaction to anticoagulation products.
13. History of HIT (Heparin Induced Thrombocytopenia.
14. History of Renal Insufficiency (Creatinine Clearance \< 50).
15. Active clinically significant bleeding.
16. Acute bacterial endocarditis.
17. BMI \> 60.
18. Patients with metallic foreign body or implant (unable to have an MRV study).
B: Inclusion Criteria:

* Maximum IMT \>1.2 mm and 3.5 mm at any location in the carotid ultrasound studies conducted at both Visit 2 (Week -4) and Visit 3 (Week -2)
* Subjects with age and no other risk factor: Fasting LDL-C at Visit 1 (Week -6) is \>120 mg/dL (3.1mmol/L) and \<190 mg/dL (4.9 mmol/L)
* Subjects with 2 or more risk factors and a 10-year coronary heart disease (CHD) risk \< 10%: Fasting LDL-C at Visit 1 (Week -6) is \>120 mg/dL (3.1 mmol/L) and \<160 mg/dL (4.1 mmol/L)

Exclusion Criteria:

* Use of pharmacologic lipid-lowering medications (eg, HMG-CoA reductase inhibitors, fibrate derivatives, bile acid binding resins, niacin or its analogues at doses \>400 mg) within 12 months prior to Visit 1 (Week -6).
* Clinical evidence of coronary artery disease or any other atherosclerotic disease such as angina, MI, TIA, symptomatic carotid artery disease, CVA, CABG, PTCA, peripheral arterial disease, AAA.
C: Inclusion Criteria:

* Diagnosed as having hyperlipidemia
* LDL-C at the time of enrollment is no less than 100
* Common carotid IMT is 1.1 mm and over

Exclusion Criteria:

* Received or planned to receive intervention on carotid arteries during the study period
* Overt liver dysfunction (ALT; 100 IU/L and over)
* Overt renal dysfunction (serum creatinine; 2.0 mg/dL and over)
* Receiving Cyclosporin
* Hyperreactive to Pitavastatin
* During pregnancy or lactation
D: Inclusion Criteria:

* BMI over 40
* Gastric banding or gastric bypass

Exclusion Criteria:

* Renal insufficiency
* Thrombopenia
* Long term anticoagulant treatment
* Pregnancy
* Allergy to heparin

Answer: A