Stroke volume and blood pressure

Common Questions and Answers about Stroke volume and blood pressure


Avatar m tn I have a history of infrequent episodes of heart palpitations that have since been determined to be a benign combination of isolated PACs and PVCs. I also occasionally have lightheaded spells, but do have high blood pressure, and the anxiety attacks, which most likely cover the cause of those. I am a collegiate athlete and in shape in every other way, but have always noticed that compared to other people with equal amounts of training as me I am way behind.
1591333 tn?1297733419 For instance heart failure increases blood volume and the kidneys react as if the individual is losing blood...the increase of volume further distresses the heart and kidneys continue to believe the system is losing blood. Also, the heart rate and dilation of the heart will continue to rise with a low cardiac output.
1124887 tn?1313754891 So a parameter that increases volume will increase blood flow and the stroke volume is increased with an increase in contractility. Higher EF stronger contractility. The converse is true a reduction in volume the lower the contractility and lower stroke volume. Your question seems to be addressing the control factors to maintain integrity of a balance of blood flow between the left and right side of the heart....
Avatar f tn I wish I can record my blood pressure 3 times a day. My mother had a massive stroke and passed away, so I like to keep close eye on my blood pressure.
Avatar m tn I am 18, and my systolic blood pressure is 155 and diastolic 55 and my heart beat is 59, so am I sick or something, I have little dizzynes sometimes and my vision blanks when I stand up...
Avatar m tn the same MAP regardless of if heart rate is 100 and stroke volume 100 ml, or the heart rate is 50 and stroke volume 200 ml, the same is not true for pulse pressure (sys minus dia). While the first might have a blood pressure of 140/90 and a MAP of 105 mmHg, the latter may have a blood pressure of 180/70 and the same MAP. Everyone have their unique stroke volume:pulse pressure ratio, depending on arterial compliance/stiffness. In general, a lower number may indicate higher arterial stiffness.
Avatar f tn So, I was shopping for christmas ornaments at canadian tire when I started getting really hot and then started to feel very weird, told my husband that I felt a little off, then he told me I looked straight ahead and my eyes rolled to white and I crumbled down into his arms....All I remember is telling him I felt off then waking up laying on the ground in his arms with 3 workers surrounding me with bottles of water in their was so scary!
Avatar m tn This increases right atrial pressure, right ventricular end-diastolic pressure and volume. This increase in ventricular resistance increases ventricular stroke volume by the Frank-Starling mechanism (phenomonon increases stroke volume with increasing chamber diameter...if not properly treated the chamber size will increase to a degree that causes EF of the ventricle to drop into the heart failure range.
Avatar n tn CO (volume of blood pumped with each heartbeat) there is a variation of volume of blood pumped with each stroke to maintain a balance between left and right side blood flow) and abviously PAP will vary accordingly (stronger heartbeat,higher PAP. If there are blockages (clots) in the lungs or pulmonary artery (increase of resistance the heart pumps against, and/or if there is narrowing, stiff pulmonary vessel the more resistance (increase of resistance will cause higher PAP).
996946 tn?1503249112 t fill itself well leading to a decrease in stroke volume and cardiac output and a lower blood pressure (systolic). As a result your body then releases norepinephrine and other vasoactive hormones which act on the peripheral vasculature and cause the diastolic pressure to go up. Atrial fibrillation and high blood pressure are related. Usually, chronic high blood pressure leads to changes in the structure of the left atrium which may lead to atrial fibrillation.
Avatar m tn Hi, SV is stroke volume and M-Mode is a single dimension image. The volume of blood within a ventricle immediately before a contraction is known as the end diastolic volume (EDV). Likewise, the volume of blood left in a ventricle at the end of contraction is end systolic volume (ESV). The difference between EDV and ESV represents many variables such as stroke volume (SV). In a healthy 70-kilogram (150 lb) man, the SV is approximately 70 mL. Regards.
Avatar n tn Return of systemic blood to the heart is impeded by the pressure inside the chest. The output of the heart is reduced and stroke volume falls. This occurs from 5 to about 14 seconds in the illustration. The fall in stroke volume reflexively causes blood vessels to constrict with some rise in pressure (15 to 20 seconds). This compensation can be quite marked with pressure returning to near or even above normal, but the cardiac output and blood flow to the body remains low.
Avatar m tn CO is a product of blood volume per heart stroke and heart rate. The higher/better the stroke volume (weak, strong, stronger contractions) the fewer heart beats (more for weak, less for strong, least for stronger) are required to meet demand (held constant for illustration) for blood oxygen. A well-condition individual requires fewer heartbeats due to strong contractions. It is the stroke that determines EF...not the CO, as CO can vary by an increase or decrease of HR.
Avatar n tn When medication(s) is properly administered there should be a reduction of heart rate and blood pressure, and it appears you are overdosed and it is surprising you still have high blood pressure and heart rate!!?. Another response, QUOTE: "A rapid heart rate with LOW blood pressure could be a sign of heart failure, but in your case, I would guess (I'm no doctor) that your heart is fine." Probably not revelant but what is the etiology of the comment?
907968 tn?1292622204 A healthy cardiovascular system will raise the pulse pressure (PP) with exercise (more forceful contractions and increase in blood volume per stroke) destinquished by the increased systole metric and diastole stays about the same. There is a return to normal PP (about 40) in several minutes. The following supports a change in blood pressure with a heart attack (stroke volume is decreased). " In trauma a low or narrow pulse pressure suggests significant blood loss.
Avatar n tn You can't measure stroke volume with the heart rate. Stroke volume is the amount of blood that your left ventricle pumps out with each heart beat. If you multiply the stroke volume by the heart rate you get your cardiac output.
Avatar n tn I had a cardiopulmonary exercise stress test and went back for the results, I had gotten info from you re the VO2max numbers so I could try to understand what the doctor would tell me, instead the doctor said they measured the stroke volume and mine was "16" which he thought was low, what does this 16 mean, what would an average number be for a 55 year old female?
Avatar n tn These risk factors are tied to hormonal fluctuations, changes in blood volume, tendency to form blood clots, and other physical changes that affect a woman in different stages of life." Go through this link for some more info You need to be closely observed as you are nearing due date. Take care and share your thoughts.
487969 tn?1249313291 My blood pressure is just like yours! I used to be ~120/88 or something, but now I'm around 98/65. I thought this was significant--or at least a clue--in figuring out what was wrong with me since this was a significant drop in pressure that has remained constant. But of course, the doctors don't seem to care.
469720 tn?1388146349 Physical inactivity and obesity - Being inactive, obese or both can increase your risk of high blood pressure, high blood cholesterol, diabetes, heart disease and stroke. So go on a brisk walk, take the stairs, and do whatever you can to make your life more active. Try to get a total of at least 30 minutes of activity on most or all days. What are other, less well-documented risk factors? Geographic location - Strokes are more common in the southeastern United States than in other areas.
Avatar m tn For a perspective, diastole dysfunction compromises left ventricle filling volume, inadequate stroke volume and operating at a high pressure regimen. LV filling volume is reduced due to increased wall size crowding out available space. Inadequate stroke volume is usually due to wall thickening and stiffening and loss of elasticity. High pressures can dilate upper chamber to compensate for gradient pressure across the mitral valve. That is the pathology.
Avatar n tn Consequently if he is losing a lot of water via perspiration, then he is losing his fluid volume, which will lower his blood pressure, because low volume means low pressure. If he is not experiencing heart palpitations, which can be caused by low potassium, then I would just suggest drinking gatorade while playing golf. Also, is he on a low sodium diet? If so, then that would further put him at risk for hyponatermia. Is he on a diuretic?