• Thumbnail for Preload (cardiology)
    In cardiac physiology, preload is the amount of sarcomere stretch experienced by cardiac muscle cells, called cardiomyocytes, at the end of ventricular...
    6 KB (715 words) - 08:47, 4 February 2024
  • Look up preload or preloading in Wiktionary, the free dictionary. Preload may refer to: Preload (cardiology), maximum stretch of the heart at the end...
    570 bytes (90 words) - 03:37, 11 February 2021
  • increased, which stretches the sarcomeres. Preload can be calculated as preload=LVEDP×LVEDR2h{\displaystyle {\text{preload}}={\frac {{\text{LVEDP}}\times...
    20 KB (2,706 words) - 20:53, 17 November 2023
  • Thumbnail for Volume overload
    volume overload Cardiac failure Frank–Starling law of the heart Preload (cardiology) Pressure overload Costanzo, Linda S. (2007). Physiology. Hagerstwon...
    4 KB (412 words) - 10:41, 7 February 2023
  • Thumbnail for Nitroglycerin
    reducing preload (volume of blood in the heart after filling); this is thought to be its primary mechanism of action. By decreasing preload, the heart...
    37 KB (3,881 words) - 06:45, 24 March 2024
  • venous return and as a consequence causes a reduction in left ventricular preload. This results in a reduction in left ventricular stroke volume and will...
    13 KB (1,508 words) - 07:11, 18 August 2023
  • Thumbnail for Heart failure
    etc. Whether the problem is primarily increased venous back pressure (preload), or failure to supply adequate arterial perfusion (afterload) Whether...
    143 KB (15,476 words) - 10:02, 15 March 2024
  • symptoms in hypertrophic obstructive cardiomyopathy by decreasing ventricular preload volume and thereby increasing outflow resistance (less blood to push aside...
    81 KB (8,705 words) - 23:54, 13 March 2024
  • Thumbnail for Heart
    the individual, sex, contractility, duration of contraction, preload and afterload. Preload refers to the filling pressure of the atria at the end of diastole...
    143 KB (16,885 words) - 07:23, 23 March 2024
  • differentiating disorders is the Valsalva maneuver, which decreases preload. Valsalva maneuver Preload Afterload Thomas, Seth L.; Heaton, Joseph; Makaryus, Amgad...
    5 KB (422 words) - 05:21, 26 October 2023
  • Thumbnail for Valsalva maneuver
    Valsalva maneuver (category Diagnostic cardiology)
    increases intrathoracic pressure and, thus, a decrease in preload to the heart. This decreased preload leads to cardiovascular changes through the baroreflex...
    24 KB (2,688 words) - 23:34, 23 March 2024
  • Thumbnail for Nitrovasodilator
    heart (the preload). Widening of the large arteries also reduces the pressure against which the heart has to pump, the afterload. Lower preload and afterload...
    12 KB (1,273 words) - 06:39, 27 December 2023
  • Impella (category Cardiology)
    "Archimedes Pump" just north of the Aortic Valve that purports to reduce both preload and afterload. The same tech can apparently also be deployed just above...
    18 KB (1,918 words) - 09:59, 18 August 2023
  • Thumbnail for Cardiac electrophysiology
    Cardiac electrophysiology is a branch of cardiology and basic science focusing on the electrical activities of the heart. The term is usually used in clinical...
    10 KB (946 words) - 22:28, 3 December 2023
  • Thumbnail for Afterload
    heart rate. Afterload is a determinant of stroke volume (in addition to preload, and strength of myocardial contraction). Following Laplace's law, the...
    11 KB (1,295 words) - 05:53, 20 July 2022
  • Thumbnail for External counterpulsation
    back to the heart thereby increasing the venous return or preload. This increase in preload occurs simultaneously with diastole which happens to be the...
    9 KB (1,045 words) - 09:13, 9 January 2024
  • diastole, during ventricular filling. Indirect injury results from increased preload on the heart secondary to spikes in venous circulation which can then lead...
    8 KB (964 words) - 09:59, 3 December 2023
  • Cavatorta A, Manca C, Borghetti A (August 2004). "Effects of the reduction of preload on left and right ventricular myocardial velocities analyzed by Doppler...
    23 KB (2,665 words) - 14:28, 6 December 2023
  • Thumbnail for Pulmonary artery catheter
    this measurement compares left and right cardiac activity and calculates preload and afterload flow and pressures which, theoretically, can be stabilized...
    19 KB (2,218 words) - 05:08, 27 December 2023
  • Thumbnail for Blood pressure
    rapid decrease in central blood volume and a reduction of ventricular preload which in turn reduces stroke volume, and mean arterial pressure. Normally...
    84 KB (8,999 words) - 01:42, 24 March 2024
  • Thumbnail for Restrictive cardiomyopathy
    chambers (atria and ventricles) keep them from adequately filling, reducing preload and end-diastolic volume. Thus, blood flow is reduced, and blood volume...
    15 KB (1,416 words) - 18:53, 13 March 2024
  • Thumbnail for Hypertension
    peripheral venous compliance which may increase venous return, increase cardiac preload and, ultimately, cause diastolic dysfunction. Pulse pressure (the difference...
    133 KB (14,381 words) - 19:21, 28 March 2024
  • Thumbnail for Levosimendan
    cells, and the vascular dilatory effects of the drug lead to a decreased preload and afterload, putting less work on the heart. This drug is in the process...
    9 KB (809 words) - 13:35, 26 August 2023
  • Thumbnail for Reflex syncope
    Reflex syncope (category Cardiology)
    even curative. Types of long-term therapy for vasovagal syncope include Preload agents Vasoconstrictors Anticholinergic agents Negative cardiac inotropes...
    23 KB (2,541 words) - 21:16, 8 March 2024
  • involved are preload, afterload and contractility. Preload is another way of expressing EDV. Therefore, the greater the EDV, the greater the preload. A main...
    47 KB (5,784 words) - 11:54, 12 June 2023
  • Thumbnail for Arteriovenous fistula
    fistula is defined as "mature". An arteriovenous fistula can increase preload. AV shunts also decrease the afterload of the heart. This is because the...
    7 KB (693 words) - 03:00, 22 March 2024
  • Thumbnail for Mitral valve prolapse
    return to the heart thereby decreasing left ventricular diastolic filling (preload) and causing more laxity on the chordae tendineae. This allows the mitral...
    55 KB (5,580 words) - 08:35, 19 February 2024
  • Thumbnail for Unstable angina
    nitroglycerin causes peripheral venous and artery dilation reducing cardiac preload and afterload. These reductions allow for decreased stress on the heart...
    14 KB (1,347 words) - 01:44, 26 March 2024
  • studies have suggested that it may be caused by a reduction in cardiac preload, or an increase in venous pooling. Research suggests that it may be caused...
    17 KB (1,873 words) - 12:08, 3 March 2024
  • Thumbnail for Heart murmur
    inspiration. Abrupt standing Squatting, by increasing afterload and increasing preload. Squatting leads to an increase in systemic vascular resistance. An increase...
    24 KB (2,974 words) - 15:28, 15 January 2024