Magna® Mitral Pericardial Bioprostheses Post-Approval Study Protocol

A linearized rate percentage is calculated by the following equation: [(Total number of late adverse events in each category/total number of late patient years) x 100]. Late adverse events are events that occur ≥ 31 days post-implant through each subject's last follow-up visit or contact. Late patient years are calculated by totaling the amount of time the valve is implanted in the patient while participating in the trial and the count begins at ≥ 31 days post-implant through all subject's last follow-up visit or contact.

The primary effectiveness endpoint will be the percentage of subjects in NYHA functional classification I or II at 8 years post-implant.

Total number of early adverse events, in each category, occurring within 30 days of procedure divided by the number of enrolled subjects times 100.

The EQ-5D is a standardized questionnaire that asks subjects to rate themselves (no problems, some problems, extreme problems) on mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The scale ranges from a minimum of 0 and a maximum of 100. A lower number indicates the participants experiences more problems and a higher number indicates the participants experiences fewer problems.

A linearized rate percentage is calculated by the following equation: [(Total number of late adverse events in each category/total number of late patient years) x 100]. Late adverse events are events that occur ≥ 31 days post-implant through each subject's last follow-up visit or contact. Late patient years are calculated by totaling the amount of time the valve is implanted in the patient while participating in the trial and the count begins at ≥ 31 days post-implant through all subject's last follow-up visit or contact.

Mean gradient is the average flow of blood through the mitral valve measured in millimeters of mercury. Gradients are evaluated by echocardiography over time. In general, a higher value is considered worse, and a lower value is considered better but the value is dependent on the size and type of valve.

Peak gradient is the maximum value measured of flow of blood through the mitral valve as measured in millimeters of mercury. Gradients are evaluated by echocardiography over time. In general, a higher valve is considered worse, and a lower value is considered better, but the value is dependent on the size and type of valve.

Effective orifice area represents the cross-sectional area of the blood flow downstream of the mitral valve. Effective orifice area is evaluated by echocardiography over time. In general, a higher value is considered better, and a lower value is considered worse, but the value is dependent on the size and type of valve.

Effective orifice area index represents the minimal cross-sectional area of the blood flow downstream of the mitral valve divided by the person's body surface area. Effective orifice area index is evaluated by echocardiography over time. In general, a higher value is considered better, and a lower value is considered worse, but the value is dependent on the size of the patient and the size and type of valve.

Cardiac output is the amount of blood the heart pumps through the circulatory system in a minute. Cardiac output is evaluated by echocardiography over time. Normal cardiac output in healthy volunteers over 60 years of age was reported between 3.1 and 6.4 liters per minute. In general, a higher value is considered better, and a lower value is considered worse.

Cardiac index (CI) evaluated by echocardiography. Cardiac index is an assessment of the cardiac output value based on the patient's size. To obtain the cardiac index, divide the cardiac output by the person's body surface area (BSA). Cardiac Index is a useful marker of how well the heart is functioning as a pump by directly correlating the volume of blood pumped by the heart with an individual's body surface area. Normal cardiac output index in healthy volunteers over 60 years of age was reported between 1.1 and 3.2 L/min/m^2. In general, a higher value is considered better, and a lower value is considered worse, but the value is dependent on the size of the patient.

Patients can experience an enlargement of the left ventricle (chamber) of their heart because it works harder with a defective heart valve. Left ventricular mass regression evaluates if the patient experiences a decrease in the size of the left ventricle (chamber) after the repair or replacement of their heart valve.

The red blood cell (RBC) count is a test that measures the number of oxygen-carrying blood cells in your blood. The red blood cell count normal range for women is 4.2 to 5.4 10^6 cells/microliters and for men is 4.7 to 6.1 10^6 cells/microliters. A high red blood cell count may indicate that you have a condition that's preventing you from getting enough oxygen. A low RBC may be caused by an infection, or a medical condition related to anemia. In general, results either lower or higher than the normal range may indicate something is wrong.

Laboratory analysis of White Blood Cell (WBC) count on blood drawn from subject; WBC fight infection. The normal reference range for WBC count is 4.5 to 10.0 10^3 cells/microliters. In general, results either lower or higher than the normal range can indicate something is wrong.

This is the laboratory analysis of Hemoglobin count on blood drawn from subjects. Hemoglobin is an oxygen-carrying protein in red blood cells. In males, a healthy hemoglobin level is between 13.2 and 16.6 g/dL. In females, a hemoglobin count of between 11.6 and 15 g/dL is considered normal and healthy. In general, results either lower or higher than the normal range can indicate something is wrong.

This is laboratory analysis of Hematocrit percentage on blood drawn from subjects. A hematocrit test measures the proportion of red blood cells in your blood. Red blood cells carry oxygen throughout your body. Having too few or too many red blood cells can be a sign of certain diseases. Normal hematocrit ranges for adult females are 36% to 44% and for adult males are 41% to 50%. In general, results either lower or higher than the normal range can indicate something is wrong.

Laboratory Analysis of reticulocytes on blood drawn from subjects. Reticulocytes are newly produced immature red blood cells; a reticulocyte blood test measures the amount of these cells in the blood. The reference range for reticulocytes is 0.5 - 2.6 % of red blood cells. In general, results either lower or higher than the normal range can indicate something is wrong.

This is laboratory analysis of Platelet count on blood drawn from subjects. The purpose of platelets is to create hemostasis, which is the prevention of hemorrhaging (bleeding) and the process of keeping blood inside the vessel walls. A normal platelet range is 150 to 450 10^3 cells/microliter. In general, results either lower or higher than the normal range can indicate something is wrong.

The serum lactate dehydrogenase (LDH) test looks for signs of damage to the body's tissues. Normal levels of LDH in the blood can vary depending on the lab but usually range between 140 units per liter (U/L) to 280 U/L for adults and tend to be higher for children and teens. In general, results either lower or higher than the normal range can indicate something is wrong.

Laboratory analysis of Plasma Free Hemoglobin (Pf Hgb) of blood drawn from subject. This blood test measures the level of free hemoglobin in the plasma (liquid portion of the blood). The reference range for plasma free hemoglobin is 0.0 to 15.2 mg/dL. In general, values higher than this can indicate something is wrong.

Haptoglobin is a protein produced by your liver. It binds with hemoglobin, which is a protein found in red blood cells. When red blood cells are destroyed, they release hemoglobin. The released hemoglobin is called "free hemoglobin." Haptoglobin attaches to the free hemoglobin to create a haptoglobin-hemoglobin complex. This complex travels to the liver, where it's removed from the body. A normal haptoglobin level falls between 45 and 200 milligrams of haptoglobin per deciliter of blood. In general, results either lower or higher than the normal range can indicate something is wrong.