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Volume overload

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Various pathologies, listed below, can lead to volume overload. Different mechanisms are involved depending on the cause, however the common theme is that of a high cardiac output with a low or normal
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under normal conditions. There is an optimum end-diastolic volume at which maximum stroke volume and cardiac output is achieved. Beyond this, there is
94:. This is true up to a point, however beyond this there is a loss of contractile ability due to loss of connection between myofibrils; see figure. 379:
Gehl LG, Mintz GS, Kotler MN, Segal BL (1982). "Left atrial volume overload in mitral regurgitation: a two dimensional echocardiographic study".
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in cardiac muscle causes them to contract more powerfully due to a greater number of cross-bridges being formed between the
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Gardiner M, Eisen S, Murphy C. Training in paediatrics: the essential curriculum. Oxford University Press, Oxford 2009.
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Klabunde, Richard E. "Cardiovascular Physiology Concepts". Lippincott Williams & Wilkins, 2011, p. 74.
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in which too large a volume of blood exists within it for it to function efficiently.
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volume overload is approximately equivalent to an excessively high
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Causes may be considered according to which chamber is affected.
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Left ventricular volume overload may produce inverted
378: 101:. The output may be high due to the inefficiency in 285: 283: 1028: 277: 438: 325: 360: 319: 237:, also causing right atrial volume overload 445: 431: 412: 410: 369:, Discussion of echocardiography findings. 176:, also causing left atrial volume overload 27:Representation of the cardiac response in 343: 22: 454:Physiology of the cardiovascular system 407: 1029: 426: 109:of blood in left-to-right shunts and 372: 13: 65: 46:refers to the state of one of the 39:, and stroke volume is diminished. 14: 1048: 207:Right ventricular volume overload 78:contracts more powerfully as the 367:Left Ventricular Volume Overload 136:Left ventricular volume overload 345:10.1016/j.cardiores.2005.05.027 255:Frank–Starling law of the heart 72:Frank–Starling law of the heart 1: 581:Aortic valve area calculation 270: 82:increases. Stretching of the 393:10.1016/0002-9149(82)90274-0 326:Conrath C, Opthof T (2005). 7: 698:Effective refractory period 577:) / End-diastolic dimension 284:Costanzo, Linda S. (2007). 243: 111:arteriovenous malformations 105:, or it may be high due to 10: 1053: 15: 1037:Cardiovascular physiology 983:Tubuloglomerular feedback 938: 930:Critical closing pressure 888: 855: 841: 821: 758: 750:Hexaxial reference system 673:Cardiac electrophysiology 660: 604: 556: 469: 460: 192:Giant hepatic haemangioma 174:Ventricular septal defect 127: 958:Renin–angiotensin system 230:Congenital heart defects 169:Patent ductus arteriosus 164:Congenital heart defects 16:Not to be confused with 988:Cerebral autoregulation 953:Kinin–kallikrein system 920:Jugular venous pressure 570:End-diastolic dimension 548:Pressure volume diagram 223:Pulmonary regurgitation 218:Tricuspid regurgitation 70:In accordance with the 925:Portal venous pressure 915:Mean arterial pressure 829:Ventricular remodeling 575:End-systolic dimension 533:Cardiac function curve 213:Valvular heart disease 142:Valvular heart disease 40: 566:Fractional shortening 48:chambers of the heart 26: 506:End-diastolic volume 328:"The patient U wave" 260:Preload (cardiology) 235:Atrial septal defect 152:Mitral regurgitation 147:Aortic regurgitation 80:end-diastolic volume 870:Vascular resistance 708:Electrocardiography 703:Pacemaker potential 633:Conduction velocity 538:Venous return curve 511:End-systolic volume 58:. It is a cause of 33:ventricular filling 978:Myogenic mechanism 596:Left atrial volume 528:Frank–Starling law 41: 1024: 1023: 1020: 1019: 837: 836: 677:Action potential 668:Conduction system 614:Cardiac pacemaker 586:Ejection fraction 303:978-0-7817-7311-9 265:Pressure overload 122:electrocardiogram 1044: 963:Vasoconstrictors 940:Regulation of BP 853: 852: 786:pulmonary artery 759:Chamber pressure 467: 466: 447: 440: 433: 424: 423: 417: 414: 405: 404: 376: 370: 364: 358: 357: 347: 323: 317: 314: 308: 307: 291: 281: 92:cardiac myocytes 1052: 1051: 1047: 1046: 1045: 1043: 1042: 1041: 1027: 1026: 1025: 1016: 934: 884: 846: 843:Vascular system 833: 817: 754: 656: 641:(Contractility) 600: 552: 543:Wiggers diagram 456: 451: 421: 420: 415: 408: 377: 373: 365: 361: 324: 320: 315: 311: 304: 282: 278: 273: 250:Cardiac failure 246: 158:volume overload 154:, also causing 130: 68: 66:Pathophysiology 60:cardiac failure 44:Volume overload 37:volume overload 21: 12: 11: 5: 1050: 1040: 1039: 1022: 1021: 1018: 1017: 1015: 1014: 1013: 1012: 1007: 1002: 992: 991: 990: 985: 980: 973:Autoregulation 970: 965: 960: 955: 950: 944: 942: 936: 935: 933: 932: 927: 922: 917: 912: 911: 910: 905: 898:Pulse pressure 894: 892: 890:Blood pressure 886: 885: 883: 882: 877: 872: 867: 861: 859: 850: 839: 838: 835: 834: 832: 831: 825: 823: 819: 818: 816: 815: 810: 809: 808: 803: 795: 794: 793: 783: 782: 781: 776: 768: 766:Central venous 762: 760: 756: 755: 753: 752: 747: 746: 745: 740: 735: 730: 725: 720: 715: 705: 700: 695: 694: 693: 688: 683: 675: 670: 664: 662: 658: 657: 655: 654: 648: 647:(Excitability) 642: 636: 626: 616: 610: 608: 602: 601: 599: 598: 593: 588: 583: 578: 572: 562: 560: 554: 553: 551: 550: 545: 540: 535: 530: 525: 520: 515: 514: 513: 508: 498: 497: 496: 491: 484:Cardiac output 481: 475: 473: 471:Cardiac output 464: 458: 457: 450: 449: 442: 435: 427: 419: 418: 406: 371: 359: 332:Cardiovasc Res 318: 309: 302: 275: 274: 272: 269: 268: 267: 262: 257: 252: 245: 242: 241: 240: 239: 238: 227: 226: 225: 220: 204: 203: 202: 201: 194: 181:Arteriovenous 179: 178: 177: 171: 161: 160: 159: 149: 129: 126: 67: 64: 9: 6: 4: 3: 2: 1049: 1038: 1035: 1034: 1032: 1011: 1008: 1006: 1003: 1001: 998: 997: 996: 993: 989: 986: 984: 981: 979: 976: 975: 974: 971: 969: 966: 964: 961: 959: 956: 954: 951: 949: 946: 945: 943: 941: 937: 931: 928: 926: 923: 921: 918: 916: 913: 909: 906: 904: 901: 900: 899: 896: 895: 893: 891: 887: 881: 878: 876: 873: 871: 868: 866: 863: 862: 860: 858: 854: 851: 849: 844: 840: 830: 827: 826: 824: 820: 814: 811: 807: 804: 802: 799: 798: 796: 792: 789: 788: 787: 784: 780: 777: 775: 772: 771: 769: 767: 764: 763: 761: 757: 751: 748: 744: 741: 739: 736: 734: 731: 729: 726: 724: 721: 719: 716: 714: 711: 710: 709: 706: 704: 701: 699: 696: 692: 689: 687: 684: 682: 679: 678: 676: 674: 671: 669: 666: 665: 663: 659: 652: 649: 646: 643: 640: 637: 634: 630: 627: 624: 620: 617: 615: 612: 611: 609: 607: 603: 597: 594: 592: 591:Cardiac index 589: 587: 584: 582: 579: 576: 573: 571: 567: 564: 563: 561: 559: 555: 549: 546: 544: 541: 539: 536: 534: 531: 529: 526: 524: 521: 519: 516: 512: 509: 507: 504: 503: 502: 501:Stroke volume 499: 495: 494:Stroke volume 492: 490: 487: 486: 485: 482: 480: 479:Cardiac cycle 477: 476: 474: 472: 468: 465: 463: 459: 455: 448: 443: 441: 436: 434: 429: 428: 425: 413: 411: 402: 398: 394: 390: 386: 382: 375: 368: 363: 355: 351: 346: 341: 337: 333: 329: 322: 313: 305: 299: 295: 290: 289: 280: 276: 266: 263: 261: 258: 256: 253: 251: 248: 247: 236: 233: 232: 231: 228: 224: 221: 219: 216: 215: 214: 211: 210: 209: 208: 199: 198:haemodialysis 195: 193: 190: 189: 188: 184: 180: 175: 172: 170: 167: 166: 165: 162: 157: 153: 150: 148: 145: 144: 143: 140: 139: 138: 137: 133: 125: 123: 119: 114: 112: 108: 104: 103:valve disease 100: 95: 93: 89: 85: 81: 77: 73: 63: 61: 57: 53: 49: 45: 38: 34: 30: 29:stroke volume 25: 19: 1005:Carotid body 968:Vasodilators 848:hemodynamics 653:(Relaxation) 645:Bathmotropic 619:Chronotropic 384: 381:Am J Cardiol 380: 374: 362: 338:(2): 184–6. 335: 331: 321: 312: 287: 279: 206: 205: 196:High-output 183:malformation 135: 134: 131: 115: 96: 69: 43: 42: 36: 18:Hypervolemia 1010:Glomus cell 1000:Aortic body 995:Paraganglia 806:ventricular 779:ventricular 728:QT interval 723:QRS complex 718:PR interval 691:ventricular 629:Dromotropic 387:(1): 33–8. 156:left atrial 52:Ventricular 948:Baroreflex 865:Compliance 857:Blood flow 733:ST segment 661:Conduction 651:Lusitropic 623:Heart rate 606:Heart rate 558:Ultrasound 489:Heart rate 288:Physiology 271:References 88:myofibrils 84:myofibrils 76:myocardium 908:Diastolic 880:Perfusion 639:Inotropic 518:Afterload 99:afterload 1031:Category 903:Systolic 681:cardiac 354:15979057 244:See also 107:shunting 31:to left 523:Preload 401:7053608 200:fistula 187:fistula 120:on the 118:u waves 90:within 56:preload 813:Aortic 801:atrial 774:atrial 770:Right 743:U wave 738:T wave 713:P wave 686:atrial 399:  352:  300:  128:Causes 74:, the 875:Pulse 822:Other 797:Left 791:wedge 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Index

Hypervolemia

stroke volume
ventricular filling
chambers of the heart
Ventricular
preload
cardiac failure
Frank–Starling law of the heart
myocardium
end-diastolic volume
myofibrils
myofibrils
cardiac myocytes
afterload
valve disease
shunting
arteriovenous malformations
u waves
electrocardiogram
Valvular heart disease
Aortic regurgitation
Mitral regurgitation
left atrial
Congenital heart defects
Patent ductus arteriosus
Ventricular septal defect
malformation
fistula
Giant hepatic haemangioma

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