84:(ECG) as a brief period of irregular length with no electrical activity before either the sinoatrial node resumes normal pacing, or another pacemaker begins pacing. If a pacemaker other than the sinoatrial node is pacing the heart, this condition is known as an
72:
tissues to contract and thus the heart to beat. It is defined as lasting from 2.0 seconds to several minutes. Since the heart contains multiple pacemakers, this interruption of the
104:
of the two conditions is possible by examining the exact length of the interruption of cardiac activity. If the next available pacemaker takes over, it is in the following order:
928:
569:
259:
986:
303:
981:
790:
627:
795:
785:
374:
1092:
923:
537:
963:
958:
827:
608:
903:
898:
822:
622:
1249:
1125:
1054:
886:
1244:
1037:
1020:
953:
873:
252:
126:
1087:
1342:
532:
1069:
557:
542:
76:
generally lasts only a few seconds before another part of the heart, such as the atrio-ventricular junction or the
844:
1147:
812:
739:
466:
1097:
176:
1271:
1027:
817:
714:
695:
525:
298:
1304:
1278:
1266:
1254:
1239:
973:
915:
719:
700:
352:
292:
245:
152:
893:
859:
802:
780:
602:
584:
520:
387:
340:
268:
101:
657:
652:
547:
357:
1153:
681:
662:
562:
473:
416:
1158:
1015:
1010:
933:
837:
807:
766:
392:
309:
108:
1261:
1059:
881:
832:
457:
404:
314:
132:
1321:
1172:
1045:
863:
761:
478:
421:
319:
220:
136:
118:
81:
77:
46:
1294:
1186:
1079:
775:
210:
202:
93:
190:
1316:
708:
689:
676:
483:
362:
61:
96:, a condition in which the pacing impulse is generated, but fails to conduct through the
1309:
1217:
1115:
1107:
1005:
515:
508:
495:
215:
112:
89:
88:. If no other pacemaker begins pacing during an episode of sinus arrest it becomes a
1336:
1299:
1210:
345:
85:
80:, begins pacing and restores the heart action. This condition can be detected on an
73:
1231:
1205:
1049:
997:
670:
646:
616:
593:
462:
452:
148:
68:
transiently ceases to generate the electrical impulses that normally stimulate the
237:
1166:
1064:
854:
771:
753:
579:
552:
503:
444:
1194:
744:
97:
69:
206:
156:
224:
17:
1120:
277:
122:
1200:
1180:
335:
147:
Treatment includes stop medications that suppress the sinus node (
65:
241:
140:
129:
is not seen, may occasionally see a retrograde P wave.
1287:
1230:
1139:
1106:
1078:
1036:
995:
972:
946:
914:
872:
853:
752:
738:
638:
592:
578:
494:
443:
436:
373:
328:
285:
276:
45:
37:
32:
115:, not sinus node (normal P morphology is lost).
253:
92:. This condition is sometimes confused with
8:
41:Sinuatrial arrest, sinus arrest, sinus pause
869:
749:
589:
570:Arrhythmogenic right ventricular dysplasia
440:
282:
260:
246:
238:
189:David Da Costa; et al. (2002-03-02).
29:
214:
135:(rate 20–40): originates in ventricular
168:
304:Spontaneous coronary artery dissection
191:"ABC of clinical electrocardiography"
7:
628:Nonbacterial thrombotic endocarditis
60:is a medical condition wherein the
924:Accelerated idioventricular rhythm
121:(rate 40–60): originates near the
25:
111:(rate 60–80): originates within
609:Subacute bacterial endocarditis
1:
1126:Pulseless electrical activity
1055:Multifocal atrial tachycardia
929:Catecholaminergic polymorphic
139:; no P wave, wide, abnormal
195:BMJ (Clinical Research Ed.)
1359:
1070:Wandering atrial pacemaker
617:non-infective endocarditis
558:Endocardial fibroelastosis
1148:hexaxial reference system
1093:Jervell and Lange-Nielsen
623:Libman–Sacks endocarditis
1028:Ventricular fibrillation
299:Coronary artery aneurysm
207:10.1136/bmj.324.7336.535
1305:Diastolic heart failure
1279:Athletic heart syndrome
1240:Ventricular hypertrophy
974:Pre-excitation syndrome
828:Left posterior fascicle
353:Acute coronary syndrome
293:Coronary artery disease
153:calcium channel blocker
823:Left anterior fascicle
603:infective endocarditis
388:Hibernating myocardium
269:Cardiovascular disease
102:Differential diagnosis
987:Wolff–Parkinson–White
947:Premature contraction
845:Adams–Stokes syndrome
548:Loeffler endocarditis
358:Myocardial infarction
1154:Right axis deviation
1116:Sudden cardiac death
474:Pericardial effusion
417:Ventricular aneurysm
159:); may need pacing.
1159:Left axis deviation
1016:Atrial fibrillation
1011:Ventricular flutter
934:Torsades de pointes
808:Bundle branch block
767:Sick sinus syndrome
553:Cardiac amyloidosis
538:Tachycardia-induced
393:Myocardial stunning
341:Prinzmetal's angina
310:Coronary thrombosis
1343:Cardiac arrhythmia
1262:Atrial enlargement
1060:Pacemaker syndrome
982:Lown–Ganong–Levine
904:Junctional ectopic
899:AV nodal reentrant
405:Myocardial rupture
315:Coronary vasospasm
133:Ventricular escape
1330:
1329:
1322:Obstructive shock
1226:
1225:
1173:Short QT syndrome
1140:Other / ungrouped
1131:Sinoatrial arrest
1046:Ectopic pacemaker
942:
941:
762:Sinus bradycardia
734:
733:
730:
729:
479:Cardiac tamponade
432:
431:
422:Dressler syndrome
320:Myocardial bridge
201:(7336): 535–538.
137:conduction system
119:Junctional escape
82:electrocardiogram
58:Sinoatrial arrest
55:
54:
33:Sinoatrial arrest
27:Medical condition
16:(Redirected from
1350:
1295:Cardiac fibrosis
1187:T wave alternans
1080:Long QT syndrome
874:Supraventricular
870:
803:Intraventricular
750:
590:
441:
286:Coronary disease
283:
262:
255:
248:
239:
234:
232:
231:
218:
181:
180:
173:
94:sinoatrial block
30:
21:
1358:
1357:
1353:
1352:
1351:
1349:
1348:
1347:
1333:
1332:
1331:
1326:
1317:Rheumatic fever
1283:
1222:
1135:
1102:
1074:
1032:
991:
968:
938:
910:
857:
849:
743:
726:
634:
583:
574:
490:
484:Hemopericardium
428:
369:
363:Unstable angina
336:Angina pectoris
329:Active ischemia
324:
272:
266:
229:
227:
188:
185:
184:
175:
174:
170:
165:
62:sinoatrial node
28:
23:
22:
15:
12:
11:
5:
1356:
1354:
1346:
1345:
1335:
1334:
1328:
1327:
1325:
1324:
1319:
1314:
1313:
1312:
1310:Cardiac asthma
1307:
1297:
1291:
1289:
1285:
1284:
1282:
1281:
1276:
1275:
1274:
1269:
1259:
1258:
1257:
1252:
1247:
1236:
1234:
1228:
1227:
1224:
1223:
1221:
1220:
1218:Strain pattern
1215:
1214:
1213:
1208:
1203:
1191:
1190:
1189:
1177:
1176:
1175:
1163:
1162:
1161:
1156:
1143:
1141:
1137:
1136:
1134:
1133:
1128:
1123:
1118:
1112:
1110:
1108:Cardiac arrest
1104:
1103:
1101:
1100:
1095:
1090:
1088:Andersen–Tawil
1084:
1082:
1076:
1075:
1073:
1072:
1067:
1062:
1057:
1052:
1042:
1040:
1034:
1033:
1031:
1030:
1025:
1024:
1023:
1013:
1008:
1006:Atrial flutter
1002:
1000:
993:
992:
990:
989:
984:
978:
976:
970:
969:
967:
966:
961:
956:
950:
948:
944:
943:
940:
939:
937:
936:
931:
926:
920:
918:
912:
911:
909:
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906:
901:
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890:
889:
878:
876:
867:
851:
850:
848:
847:
842:
841:
840:
835:
830:
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815:
805:
800:
799:
798:
793:
788:
778:
769:
764:
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747:
736:
735:
732:
731:
728:
727:
725:
724:
723:
722:
717:
705:
704:
703:
698:
686:
685:
684:
679:
667:
666:
665:
660:
655:
642:
640:
636:
635:
633:
632:
631:
630:
625:
613:
612:
611:
598:
596:
587:
576:
575:
573:
572:
567:
566:
565:
560:
555:
550:
545:
540:
535:
530:
529:
528:
516:Cardiomyopathy
513:
512:
511:
509:Chagas disease
500:
498:
492:
491:
489:
488:
487:
486:
481:
471:
470:
469:
460:
449:
447:
438:
434:
433:
430:
429:
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419:
409:
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396:
395:
390:
379:
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371:
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367:
366:
365:
360:
350:
349:
348:
343:
332:
330:
326:
325:
323:
322:
317:
312:
307:
301:
296:
289:
287:
280:
274:
273:
267:
265:
264:
257:
250:
242:
236:
235:
183:
182:
167:
166:
164:
161:
145:
144:
130:
116:
90:cardiac arrest
53:
52:
49:
43:
42:
39:
35:
34:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1355:
1344:
1341:
1340:
1338:
1323:
1320:
1318:
1315:
1311:
1308:
1306:
1303:
1302:
1301:
1300:Heart failure
1298:
1296:
1293:
1292:
1290:
1286:
1280:
1277:
1273:
1270:
1268:
1265:
1264:
1263:
1260:
1256:
1253:
1251:
1248:
1246:
1243:
1242:
1241:
1238:
1237:
1235:
1233:
1229:
1219:
1216:
1212:
1211:ST depression
1209:
1207:
1204:
1202:
1199:
1198:
1197:
1196:
1192:
1188:
1185:
1184:
1183:
1182:
1178:
1174:
1171:
1170:
1169:
1168:
1164:
1160:
1157:
1155:
1152:
1151:
1150:
1149:
1145:
1144:
1142:
1138:
1132:
1129:
1127:
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1122:
1119:
1117:
1114:
1113:
1111:
1109:
1105:
1099:
1096:
1094:
1091:
1089:
1086:
1085:
1083:
1081:
1077:
1071:
1068:
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1063:
1061:
1058:
1056:
1053:
1051:
1047:
1044:
1043:
1041:
1039:
1035:
1029:
1026:
1022:
1019:
1018:
1017:
1014:
1012:
1009:
1007:
1004:
1003:
1001:
999:
994:
988:
985:
983:
980:
979:
977:
975:
971:
965:
962:
960:
957:
955:
952:
951:
949:
945:
935:
932:
930:
927:
925:
922:
921:
919:
917:
913:
905:
902:
900:
897:
896:
895:
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888:
885:
884:
883:
880:
879:
877:
875:
871:
868:
865:
861:
856:
852:
846:
843:
839:
838:Trifascicular
836:
834:
831:
829:
826:
824:
821:
819:
816:
814:
811:
810:
809:
806:
804:
801:
797:
794:
792:
789:
787:
784:
783:
782:
779:
777:
773:
770:
768:
765:
763:
760:
759:
757:
755:
751:
748:
746:
741:
737:
721:
720:regurgitation
718:
716:
713:
712:
711:
710:
706:
702:
701:regurgitation
699:
697:
694:
693:
692:
691:
687:
683:
682:regurgitation
680:
678:
675:
674:
673:
672:
668:
664:
663:regurgitation
661:
659:
656:
654:
651:
650:
649:
648:
644:
643:
641:
637:
629:
626:
624:
621:
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619:
618:
614:
610:
607:
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605:
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599:
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595:
591:
588:
586:
581:
577:
571:
568:
564:
561:
559:
556:
554:
551:
549:
546:
544:
541:
539:
536:
534:
531:
527:
524:
523:
522:
519:
518:
517:
514:
510:
507:
506:
505:
502:
501:
499:
497:
493:
485:
482:
480:
477:
476:
475:
472:
468:
464:
461:
459:
456:
455:
454:
451:
450:
448:
446:
442:
439:
435:
423:
420:
418:
415:
414:
413:
410:
406:
403:
402:
401:
398:
394:
391:
389:
386:
385:
384:
381:
380:
378:
376:
372:
364:
361:
359:
356:
355:
354:
351:
347:
346:Stable angina
344:
342:
339:
338:
337:
334:
333:
331:
327:
321:
318:
316:
313:
311:
308:
305:
302:
300:
297:
294:
291:
290:
288:
284:
281:
279:
275:
270:
263:
258:
256:
251:
249:
244:
243:
240:
226:
222:
217:
212:
208:
204:
200:
196:
192:
187:
186:
178:
172:
169:
162:
160:
158:
154:
150:
142:
138:
134:
131:
128:
124:
120:
117:
114:
110:
109:Atrial escape
107:
106:
105:
103:
99:
95:
91:
87:
86:escape rhythm
83:
79:
75:
74:cardiac cycle
71:
67:
63:
59:
50:
48:
44:
40:
36:
31:
19:
1232:Cardiomegaly
1206:ST elevation
1193:
1179:
1165:
1146:
1130:
1050:Ectopic beat
998:fibrillation
833:Bifascicular
707:
688:
669:
645:
615:
601:
594:Endocarditis
533:Hypertrophic
467:Constrictive
453:Pericarditis
411:
399:
382:
228:. Retrieved
198:
194:
171:
149:beta blocker
146:
57:
56:
1098:Romano–Ward
1065:Parasystole
964:Ventricular
916:Ventricular
855:Tachycardia
772:Heart block
754:Bradycardia
580:Endocardium
543:Restrictive
504:Myocarditis
445:Pericardium
125:; a normal
38:Other names
18:Sinus pause
996:Flutter /
959:Junctional
894:Junctional
887:Multifocal
860:paroxysmal
776:Sinoatrial
745:arrhythmia
740:Conduction
496:Myocardium
230:2008-04-28
177:"UpToDate"
163:References
98:myocardium
78:ventricles
70:myocardial
51:Cardiology
1255:Pulmonary
1038:Pacemaker
709:pulmonary
690:tricuspid
526:Alcoholic
157:digitalis
47:Specialty
1337:Category
1121:Asystole
1021:Familial
715:stenosis
696:stenosis
677:stenosis
658:stenosis
653:prolapse
375:Sequelae
278:Ischemia
225:11872557
521:Dilated
463:Chronic
271:(heart)
216:1122450
123:AV node
64:of the
1201:J wave
954:Atrial
882:Atrial
671:aortic
647:mitral
639:Valves
585:valves
437:Layers
306:(SCAD)
223:
213:
127:P wave
1288:Other
1272:Right
1250:Right
864:sinus
813:Right
563:Viral
458:Acute
412:weeks
383:hours
295:(CAD)
113:atria
66:heart
1267:Left
1245:Left
862:and
818:Left
400:days
221:PMID
211:PMC
203:doi
199:324
141:QRS
100:.
1339::
1195:ST
1167:QT
1048:/
796:3°
791:2°
786:1°
781:AV
774::
465:/
219:.
209:.
197:.
193:.
155:,
151:,
1181:T
866:)
858:(
742:/
582:/
261:e
254:t
247:v
233:.
205::
179:.
143:.
20:)
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