Knowledge

Cephalic presentation

Source 📝

282: 219: 241: 272: 260: 292: 209: 229: 446:. In a large study, a majority of brow presentations were delivered by caesarean section, however, because of 'postmaturity', factors other than labour dynamics may have played a role. Most face presentations can be delivered vaginally as long as the chin is anterior; there is no increase in fetal or maternal mortality. Mento-posterior positions cannot be delivered vaginally in most cases (unless rotated) and are candidates for caesarean section in contemporary management. 251: 32: 313: 157:
is the presenting part; with further labor the head will either flex or extend more so that in the end this presentation leads to a vertex or face presentation. In the brow presentation, the head is slightly extended, but less than in the face presentation. The chin presentation is a variant of the
303:
The occipito-anterior position is ideal for birth; it means that the baby is lined up so as to fit through the pelvis as easily as possible. The baby is head down, facing the spine, with their back anterior. In this position, the baby's chin is tucked onto their chest, so that the smallest part of
375:
While some consider the brow presentation as an intermediate stage towards the face presentation, others disagree. Thus Bhal et al. indicated that both conditions are about equally common (1/994 face and 1/755 brow positions), and that prematurity was more common with face while
177:
The vertex is the area of the vault bounded anteriorly by the anterior fontanelle and the coronal suture, posteriorly by the posterior fontanelle and the lambdoid suture and laterally by 2 lines passing through the parietal eminences.
437:
Many factors determine the optimal way to deliver a baby. A vertex presentation is the ideal situation for a vaginal birth, although occiput posterior positions tend to proceed more slowly, often requiring intervention in the form of
400:
is larger and thus a fetus will adapt its position so that the bulkier and more movable podalic pole makes use of it, while the head moves to the opposite site. Factors that influence this positioning include the
185:
curve by extending the head. In an occiput posterior position, labor becomes prolonged, and more operative interventions are deemed necessary. The prevalence of the persistent occiput posterior is given as 4.7%.
826: 811: 125:
so that only a small part (or none) of it can be felt abdominally. The perineum and cervix are further flattened and the head may be felt vaginally. Head engagement is known colloquially as the
133:
because of the release of pressure on the upper abdomen and renewed ease in breathing. However, it severely reduces bladder capacity resulting in a need to void more frequently.
425:
delivers the precise diagnosis and may indicate possible causes of a malpresentation. On vaginal examination, the leading part of the fetus becomes identifiable after the
304:
their head will be applied to the cervix first. The position is usually "Left Occiput Anterior", or LOA. Occasionally, the baby may be "Right Occiput Anterior", or ROA.
719:
Lydon-Rochelle M, Albers L, Gotwocia J, Craig E, Qualls C (September 1993). "Accuracy of Leopold Maneuvrers in Screening for Malpresentation: A Prospective Study".
345: 352:
procedures Duff indicates that the prevalence of face presentations is about 1/500–600, while Benedetti et al. found it to be 1/1,250 term deliveries.
1830: 1443: 405:
age (earlier in gestation breech presentations are more common as the head is relatively bigger), size of the head, malformations, amount of
153:
becomes the leading part. Face presentations account for less than 1% of presentations at term. In the sinicipital presentation, the large
1412: 344:. In an uncomplicated face presentation, duration of labor is not altered. Perinatal losses with face presentation occur with traumatic 757:
Ducarme G, Ceccaldi PF, Chesnoy V, Robinet G, Gabriel R (2006). "Face presentation: retrospective study of 32 cases at term".
1608: 1538: 1753: 1113: 1712: 880: 149:
leads the way. This is the most common configuration and seen at term in 95% of singletons. If the head is extended, the
1578: 1613: 1478: 579:
Bashiri A, Burstein E, Bar-David J, Levy A, Mazor M (2008). "Face and brow presentation: independent risk factors".
396:
has been given as the major cause for the finding that most singletons favor the cephalic presentation at term. The
1717: 1417: 942: 1769: 1483: 1533: 317: 181:
In the vertex presentation, the occiput typically is anterior and thus in an optimal position to negotiate the
40: 93:
enters the pelvis first; the most common form of cephalic presentation is the vertex presentation, where the
1558: 1465: 967: 1563: 1523: 1022: 1392: 1203: 1176: 538:
Gardberg M, Tuppurainen M (1994). "Persitent occiput posterior presentation — a clinical problem".
337: 1598: 1435: 1193: 1118: 1088: 511: 281: 1648: 1260: 1000: 924: 478:. Appleton-Century-Crofts (1971) Library of Congress Catalogue Card Number 73-133179. pp. 322–2. 218: 86: 240: 1010: 271: 259: 291: 208: 1583: 1448: 1186: 947: 914: 873: 422: 228: 1702: 1518: 1083: 962: 200:
Right Occipito-Anterior (ROA), Right Occipito-Posterior (ROP), Right Occipito-Transverse (ROT)
1697: 1553: 1508: 1503: 1498: 1493: 1322: 1275: 1238: 1058: 166: 1804: 1743: 1603: 1460: 1384: 1292: 1282: 1078: 979: 957: 197:
Left Occipito-Anterior (LOA), Left Occipito-Posterior (LOP), Left Occipito-Transverse (LOT)
8: 1825: 1707: 1618: 1573: 1473: 1332: 1250: 1233: 1198: 1053: 974: 934: 830: 162: 684:
Bhal PS, Davies NJ, Chung T (1998). "A population study of face and brow presentation".
1835: 1593: 1488: 1453: 1312: 1161: 1073: 1038: 919: 866: 732: 604: 489: 1672: 1548: 1287: 1228: 1068: 1048: 1043: 841: 774: 736: 701: 663: 636: 596: 547: 443: 366:
Right Mento-Anterior (RMA), Right Mento-Posterior (RMP), Right Mento-Transverse (RMT)
48: 835: 1643: 1255: 1128: 1123: 1017: 766: 728: 693: 608: 588: 418: 349: 363:
Left Mento-Anterior (LMA), Left Mento-Posterior (LMP), Left Mento-Transverse (LMT)
1692: 1407: 1302: 1171: 1063: 952: 901: 770: 189:
The vertex presentations are further classified according to the position of the
118: 102: 105:) and are either more difficult to deliver or not deliverable by natural means. 1738: 1653: 1359: 1307: 1005: 406: 341: 190: 846: 820: 592: 1819: 1748: 1638: 1427: 1402: 1154: 995: 909: 122: 654:
Benedetti TJ, Lowensohn RL, Tuscott AM (1980). "Face Presentation at Term".
1784: 1364: 1317: 1265: 1223: 858: 778: 705: 697: 600: 426: 377: 740: 667: 640: 551: 421:
will demonstrate the presentation and possibly the position of the fetus.
1774: 1369: 1327: 1245: 397: 333: 98: 803: 250: 1779: 1297: 1219: 1098: 893: 329: 154: 90: 78: 62: 53: 565: 889: 402: 1658: 1374: 409:, presence of multiple gestations, presence of tumors, and others. 355:
Face presentations are classified according to the position of the
1181: 718: 627:
Duff, P (1981). "Diagnosis and Management of Face Presentation".
439: 325: 146: 142: 94: 1687: 1149: 1144: 815: 393: 182: 312: 31: 1733: 1397: 1166: 756: 193:, both right, left, or transverse and anterior or posterior: 113:
The movement of the fetus to cephalic presentation is called
82: 578: 389: 356: 150: 429:
has been broken and the head is descending in the pelvis.
653: 512:"Lightening During Pregnancy as an Early Sign of Labor" 121:. In head engagement, the fetal head descends into the 158:
face presentation with maximum extension of the head.
793: 97:
is the leading part (the part that first enters the
537: 324:Factors that predispose to face presentation are 1817: 683: 874: 888: 473: 383: 881: 867: 752: 750: 533: 531: 529: 469: 467: 465: 463: 461: 459: 30: 16:Childbirth in which the head emerges first 1831:Presentations and positions in childbirth 101:). All other presentations are abnormal ( 311: 290: 280: 270: 258: 249: 239: 227: 217: 207: 141:In the vertex presentation, the head is 747: 626: 526: 456: 39:Vertex presentation, occiput anterior, 1818: 679: 677: 622: 620: 618: 172: 862: 380:was more common with brow positions. 316:A mento-posterior face presentation, 370: 307: 1713:Psychiatric disorders of childbirth 674: 615: 161:Non-cephalic presentations are the 13: 733:10.1111/j.1523-536X.1993.tb00437.x 14: 1847: 789: 476:Williams Obstetrics, 14th edition 136: 129:, and in natural medicine as the 1718:Postpartum physiological changes 1418:Postpartum physiological changes 943:Assisted reproductive technology 1770:Adaptation to extrauterine life 712: 1413:Maternal physiological changes 647: 572: 558: 504: 482: 1: 968:partner-assisted reproduction 449: 432: 108: 771:10.1016/j.gyobfe.2005.07.042 566:"Optimum Foetal Positioning" 412: 7: 1204:Traditional birth attendant 581:J Matern Fetal Neonatal Med 392:-shaped) morphology of the 338:cephalopelvic disproportion 285:Straight occipito-posterior 10: 1852: 1436:Brain health and pollution 474:Hellman LM, Pritchard JA. 222:Straight occipito-anterior 1797: 1762: 1726: 1680: 1671: 1649:Chorionic villus sampling 1631: 1426: 1383: 1352: 1345: 1212: 1137: 1106: 1097: 1031: 1001:Obstetric ultrasonography 988: 933: 925:Pre-conception counseling 900: 797: 593:10.1080/14767050802037647 540:Acta Obstet Gynecol Scand 336:and other malformations, 244:Right occipito-transverse 47: 38: 29: 24: 1539:Intrahepatic cholestasis 514:. Giving Birth Naturally 442:, vacuum extraction, or 384:Reasons for predominance 275:Right occipito-posterior 263:Left occipito-transverse 1609:Motor vehicle emissions 1470:Concomitant conditions 1444:environmental toxicants 1187:Auxiliary nurse midwife 948:artificial insemination 915:Natural family planning 492:. pregnancy-bliss.co.uk 417:Usually performing the 295:Left occipito-posterior 212:Right occipito-anterior 75:head-first presentation 1703:Postpartum confinement 963:in vitro fertilisation 698:10.1080/01443619867371 423:Ultrasound examination 346:version and extraction 321: 296: 286: 276: 264: 254: 245: 233: 232:Left occipito-anterior 223: 213: 1698:Postpartum depression 1579:Pruritic folliculitis 1323:Unassisted childbirth 759:Gynecol Obstet Fertil 315: 294: 284: 274: 262: 253: 243: 231: 221: 211: 167:shoulder presentation 67:cephalic presentation 25:Cephalic presentation 1805:Gravidity and parity 1785:Congenital disorders 1744:Lactation consultant 1614:Pre-existing disease 1293:Childbirth positions 1283:Rupture of membranes 980:Unintended pregnancy 958:fertility medication 1708:Sex after pregnancy 1515:Endocrine diseases 1461:Prenatal depression 1333:Placental expulsion 1251:Uterine contraction 1234:cervical effacement 975:Fertility awareness 173:Vertex presentation 163:breech presentation 117:. It occurs in the 1484:Hypercoagulability 1313:Natural childbirth 1162:Postterm pregnancy 920:Male contraceptive 322: 297: 287: 277: 265: 255: 246: 234: 224: 214: 77:is a situation at 1813: 1812: 1798:Obstetric history 1793: 1792: 1754:Confinement nanny 1667: 1666: 1534:Acute fatty liver 1341: 1340: 1229:cervical dilation 856: 855: 686:J Obstet Gynaecol 490:"Starting labour" 444:caesarean section 419:Leopold maneuvers 371:Brow presentation 308:Face presentation 301: 300: 71:head presentation 59: 58: 19:Medical condition 1843: 1678: 1677: 1644:Cardiotocography 1350: 1349: 1256:Vaginal delivery 1129:Nesting instinct 1104: 1103: 1089:Rudimentary horn 1018:Prenatal testing 883: 876: 869: 860: 859: 795: 794: 783: 782: 754: 745: 744: 716: 710: 709: 681: 672: 671: 651: 645: 644: 624: 613: 612: 576: 570: 569: 568:. Homebirth.org. 562: 556: 555: 535: 524: 523: 521: 519: 508: 502: 501: 499: 497: 486: 480: 479: 471: 204: 203: 103:malpresentations 87:longitudinal lie 34: 22: 21: 1851: 1850: 1846: 1845: 1844: 1842: 1841: 1840: 1816: 1815: 1814: 1809: 1789: 1758: 1722: 1693:Postpartum care 1663: 1627: 1530:Liver diseases 1524:Thyroid disease 1422: 1408:Gestational age 1379: 1337: 1303:Labor induction 1208: 1199:Perinatal nurse 1172:Birth attendant 1133: 1093: 1027: 1023:Medical imaging 984: 953:fertility fraud 929: 896: 887: 857: 852: 851: 806: 792: 787: 786: 755: 748: 717: 713: 682: 675: 652: 648: 625: 616: 577: 573: 564: 563: 559: 536: 527: 517: 515: 510: 509: 505: 495: 493: 488: 487: 483: 472: 457: 452: 435: 415: 386: 373: 318:William Smellie 310: 175: 165:(3.5%) and the 139: 119:third trimester 115:head engagement 111: 41:William Smellie 20: 17: 12: 11: 5: 1849: 1839: 1838: 1833: 1828: 1811: 1810: 1808: 1807: 1801: 1799: 1795: 1794: 1791: 1790: 1788: 1787: 1782: 1777: 1772: 1766: 1764: 1760: 1759: 1757: 1756: 1751: 1746: 1741: 1739:Health visitor 1736: 1730: 1728: 1724: 1723: 1721: 1720: 1715: 1710: 1705: 1700: 1695: 1690: 1684: 1682: 1675: 1669: 1668: 1665: 1664: 1662: 1661: 1656: 1654:Nonstress test 1651: 1646: 1641: 1635: 1633: 1629: 1628: 1626: 1625: 1624: 1623: 1622: 1621: 1616: 1611: 1606: 1601: 1596: 1588: 1587: 1586: 1581: 1576: 1570:Skin diseases 1568: 1567: 1566: 1561: 1556: 1551: 1543: 1542: 1541: 1536: 1528: 1527: 1526: 1521: 1513: 1512: 1511: 1506: 1501: 1496: 1486: 1481: 1476: 1468: 1463: 1458: 1457: 1456: 1451: 1446: 1438: 1432: 1430: 1424: 1423: 1421: 1420: 1415: 1410: 1405: 1400: 1395: 1389: 1387: 1381: 1380: 1378: 1377: 1372: 1367: 1362: 1360:Amniotic fluid 1356: 1354: 1347: 1343: 1342: 1339: 1338: 1336: 1335: 1330: 1325: 1320: 1315: 1310: 1308:Multiple birth 1305: 1300: 1295: 1290: 1285: 1280: 1279: 1278: 1273: 1268: 1258: 1253: 1248: 1243: 1242: 1241: 1236: 1231: 1216: 1214: 1210: 1209: 1207: 1206: 1201: 1196: 1191: 1190: 1189: 1179: 1174: 1169: 1164: 1159: 1158: 1157: 1147: 1141: 1139: 1135: 1134: 1132: 1131: 1126: 1121: 1116: 1114:Bradley method 1110: 1108: 1101: 1095: 1094: 1092: 1091: 1086: 1081: 1076: 1071: 1066: 1061: 1056: 1051: 1046: 1041: 1035: 1033: 1029: 1028: 1026: 1025: 1020: 1015: 1014: 1013: 1006:Pregnancy test 1003: 998: 992: 990: 986: 985: 983: 982: 977: 972: 971: 970: 965: 960: 955: 950: 939: 937: 931: 930: 928: 927: 922: 917: 912: 906: 904: 898: 897: 886: 885: 878: 871: 863: 854: 853: 850: 849: 838: 823: 807: 802: 801: 799: 798:Classification 791: 790:External links 788: 785: 784: 746: 711: 673: 662:(2): 199–202. 656:Obstet Gynecol 646: 629:Obstet Gynecol 614: 571: 557: 525: 503: 481: 454: 453: 451: 448: 434: 431: 414: 411: 407:amniotic fluid 388:The piriform ( 385: 382: 372: 369: 368: 367: 364: 342:polyhydramnios 309: 306: 299: 298: 288: 278: 267: 266: 256: 247: 236: 235: 225: 215: 202: 201: 198: 174: 171: 138: 137:Classification 135: 110: 107: 57: 56: 51: 45: 44: 36: 35: 27: 26: 18: 15: 9: 6: 4: 3: 2: 1848: 1837: 1834: 1832: 1829: 1827: 1824: 1823: 1821: 1806: 1803: 1802: 1800: 1796: 1786: 1783: 1781: 1778: 1776: 1773: 1771: 1768: 1767: 1765: 1761: 1755: 1752: 1750: 1749:Monthly nurse 1747: 1745: 1742: 1740: 1737: 1735: 1732: 1731: 1729: 1725: 1719: 1716: 1714: 1711: 1709: 1706: 1704: 1701: 1699: 1696: 1694: 1691: 1689: 1686: 1685: 1683: 1679: 1676: 1674: 1670: 1660: 1657: 1655: 1652: 1650: 1647: 1645: 1642: 1640: 1639:Amniocentesis 1637: 1636: 1634: 1630: 1620: 1617: 1615: 1612: 1610: 1607: 1605: 1602: 1600: 1599:Vaginal flora 1597: 1595: 1592: 1591: 1589: 1585: 1582: 1580: 1577: 1575: 1572: 1571: 1569: 1565: 1562: 1560: 1557: 1555: 1552: 1550: 1547: 1546: 1544: 1540: 1537: 1535: 1532: 1531: 1529: 1525: 1522: 1520: 1517: 1516: 1514: 1510: 1507: 1505: 1502: 1500: 1497: 1495: 1492: 1491: 1490: 1489:Substance use 1487: 1485: 1482: 1480: 1477: 1475: 1472: 1471: 1469: 1467: 1464: 1462: 1459: 1455: 1452: 1450: 1447: 1445: 1442: 1441: 1439: 1437: 1434: 1433: 1431: 1429: 1425: 1419: 1416: 1414: 1411: 1409: 1406: 1404: 1403:Fundal height 1401: 1399: 1396: 1394: 1391: 1390: 1388: 1386: 1382: 1376: 1373: 1371: 1368: 1366: 1363: 1361: 1358: 1357: 1355: 1351: 1348: 1344: 1334: 1331: 1329: 1326: 1324: 1321: 1319: 1316: 1314: 1311: 1309: 1306: 1304: 1301: 1299: 1296: 1294: 1291: 1289: 1286: 1284: 1281: 1277: 1274: 1272: 1269: 1267: 1264: 1263: 1262: 1259: 1257: 1254: 1252: 1249: 1247: 1244: 1240: 1237: 1235: 1232: 1230: 1227: 1226: 1225: 1221: 1218: 1217: 1215: 1211: 1205: 1202: 1200: 1197: 1195: 1192: 1188: 1185: 1184: 1183: 1180: 1178: 1175: 1173: 1170: 1168: 1165: 1163: 1160: 1156: 1155:Preterm birth 1153: 1152: 1151: 1148: 1146: 1143: 1142: 1140: 1136: 1130: 1127: 1125: 1122: 1120: 1119:Hypnobirthing 1117: 1115: 1112: 1111: 1109: 1105: 1102: 1100: 1096: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1072: 1070: 1067: 1065: 1062: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1040: 1037: 1036: 1034: 1030: 1024: 1021: 1019: 1016: 1012: 1009: 1008: 1007: 1004: 1002: 999: 997: 996:3D ultrasound 994: 993: 991: 987: 981: 978: 976: 973: 969: 966: 964: 961: 959: 956: 954: 951: 949: 946: 945: 944: 941: 940: 938: 936: 932: 926: 923: 921: 918: 916: 913: 911: 910:Birth control 908: 907: 905: 903: 899: 895: 891: 884: 879: 877: 872: 870: 865: 864: 861: 848: 844: 843: 839: 837: 833: 832: 828: 824: 822: 818: 817: 813: 809: 808: 805: 800: 796: 780: 776: 772: 768: 764: 760: 753: 751: 742: 738: 734: 730: 726: 722: 715: 707: 703: 699: 695: 691: 687: 680: 678: 669: 665: 661: 657: 650: 642: 638: 635:(1): 105–12. 634: 630: 623: 621: 619: 610: 606: 602: 598: 594: 590: 587:(6): 357–60. 586: 582: 575: 567: 561: 553: 549: 545: 541: 534: 532: 530: 513: 507: 491: 485: 477: 470: 468: 466: 464: 462: 460: 455: 447: 445: 441: 430: 428: 424: 420: 410: 408: 404: 399: 395: 391: 381: 379: 365: 362: 361: 360: 358: 353: 351: 347: 343: 339: 335: 331: 327: 319: 314: 305: 293: 289: 283: 279: 273: 269: 268: 261: 257: 252: 248: 242: 238: 237: 230: 226: 220: 216: 210: 206: 205: 199: 196: 195: 194: 192: 187: 184: 179: 170: 168: 164: 159: 156: 152: 148: 144: 134: 132: 128: 124: 123:pelvic cavity 120: 116: 106: 104: 100: 96: 92: 88: 84: 80: 76: 72: 68: 64: 55: 52: 50: 46: 42: 37: 33: 28: 23: 1479:Hypertension 1466:Immunization 1449:in pregnancy 1365:Amniotic sac 1318:Silent birth 1270: 1261:Presentation 1224:Bishop score 1194:Obstetrician 1084:Interstitial 1011:home testing 840: 825: 810: 765:(5): 393–6. 762: 758: 727:(3): 132–5. 724: 720: 714: 692:(3): 231–5. 689: 685: 659: 655: 649: 632: 628: 584: 580: 574: 560: 546:(4): 117–9. 543: 539: 516:. Retrieved 506: 494:. Retrieved 484: 475: 436: 427:amniotic sac 416: 387: 378:postmaturity 374: 354: 323: 302: 188: 180: 176: 160: 140: 130: 126: 114: 112: 74: 70: 66: 60: 1775:Apgar score 1559:Hepatitis C 1545:Infections 1385:Development 1370:Endometrium 1328:Water birth 1246:Bloody show 1177:Men's roles 1107:Preparation 1059:Heterotopic 403:gestational 334:anencephaly 326:prematurity 99:birth canal 1826:Obstetrics 1820:Categories 1780:Child care 1673:Postpartum 1632:Procedures 1584:Dermatoses 1440:Nutrition 1298:Home birth 1220:Pelvimetry 1099:Childbirth 1079:Unintended 935:Conception 894:childbirth 842:DiseasesDB 496:14 January 450:References 433:Management 359:(mentum): 350:midforceps 330:macrosomia 155:fontanelle 131:lightening 109:Engagement 89:and the 81:where the 79:childbirth 63:obstetrics 54:Obstetrics 1836:Midwifery 1288:Caesarean 1054:Abdominal 890:Pregnancy 518:22 August 413:Diagnosis 127:baby drop 49:Specialty 1681:Maternal 1659:Abortion 1604:Bleeding 1554:COVID-19 1519:Diabetes 1504:Cannabis 1454:prenatal 1375:Placenta 1346:Prenatal 1276:shoulder 1271:cephalic 1239:position 1213:Delivery 1074:Postterm 1039:Cervical 902:Planning 779:16630740 706:15512065 601:18570114 169:(0.5%). 145:and the 85:is in a 1590:Others 1564:Malaria 1509:Opioids 1499:Alcohol 1494:Smoking 1353:Anatomy 1182:Midwife 1150:Newborn 1069:Ovarian 1049:Ectopic 1044:Cryptic 989:Testing 741:8240620 668:7352081 641:7005774 609:6986584 552:7975796 440:forceps 191:occiput 147:occiput 95:occiput 1763:Infant 1688:Lochia 1474:Anemia 1393:Embryo 1266:breech 1145:Mother 1124:Lamaze 777:  739:  704:  666:  639:  607:  599:  550:  398:fundus 394:uterus 340:, and 320:, 1792 183:pelvic 143:flexed 43:, 1792 1734:Doula 1727:Roles 1619:Sleep 1594:Drugs 1574:Lupus 1398:Fetus 1167:Doula 1138:Roles 1064:Molar 1032:Types 821:O80.0 721:Birth 605:S2CID 83:fetus 1428:Care 892:and 847:1631 831:9-CM 775:PMID 737:PMID 702:PMID 664:PMID 637:PMID 597:PMID 548:PMID 520:2010 498:2009 390:pear 357:chin 348:and 151:face 91:head 65:, a 1549:HIV 836:650 827:ICD 812:ICD 767:doi 729:doi 694:doi 589:doi 544:198 73:or 69:or 61:In 1822:: 1222:/ 845:: 834:: 819:: 816:10 773:. 763:34 761:. 749:^ 735:. 725:20 723:. 700:. 690:18 688:. 676:^ 660:55 658:. 633:57 631:. 617:^ 603:. 595:. 585:21 583:. 542:. 528:^ 458:^ 332:, 328:, 882:e 875:t 868:v 829:- 814:- 804:D 781:. 769:: 743:. 731:: 708:. 696:: 670:. 643:. 611:. 591:: 554:. 522:. 500:.

Index


William Smellie
Specialty
Obstetrics
obstetrics
childbirth
fetus
longitudinal lie
head
occiput
birth canal
malpresentations
third trimester
pelvic cavity
flexed
occiput
face
fontanelle
breech presentation
shoulder presentation
pelvic
occiput







Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.