TY - JOUR AU - Sánchez Torres, Fernando PY - 1966/10/31 Y2 - 2024/03/29 TI - Embarazo prolongado JF - Revista Colombiana de Obstetricia y Ginecología JA - Rev. colomb. obstet. ginecol. VL - 17 IS - 5 SE - DO - 10.18597/rcog.2641 UR - https://revista.fecolsog.org/index.php/rcog/article/view/2641 SP - 371-376 AB - <p class="p1"><span class="s1">Si </span>aceptamos como <span class="s1">"</span><span class="s2">embarazo&nbsp;</span>prolongado" <span class="s2">toda </span>gestació<span class="s3">n </span><span class="s2">que </span>va más allá de <span class="s3">l</span>a <span class="s2">duración </span>nor<span class="s3">mal </span>, es necesario p<span class="s3">r</span>ecisar <span class="s2">qué </span>se en <span class="s3">tiend</span>e&nbsp;<span class="s4">por </span><span class="s1">"duración </span>normal <span class="s1">". </span>En todas <span class="s5">l</span><span class="s4">as&nbsp;</span><span class="s1">especies an</span><span class="s2">imales la </span>durac<span class="s3">i</span>ón <span class="s2">del </span>ciclo gravídico tiende a ser <span class="s2">constante</span><span class="s1">;&nbsp;</span><span class="s1">en </span>la <span class="s4">especie </span>humana dura aproxima<span class="s4">damente&nbsp;</span><span class="s4">280 días, </span><span class="s2">a </span>partir <span class="s2">de</span><span class="s5">l </span>primer día <span class="s2">d</span><span class="s1">e </span><span class="s2">l</span><span class="s1">a ú</span><span class="s2">ltima </span>mens<span class="s3">truació</span>n. <span class="s3">E</span>s<span class="s3">te&nbsp;</span>lapso corresponde a <span class="s2">la </span>"duració<span class="s3">n </span><span class="s2">apa</span>rente", pues <span class="s2">la </span><span class="s1">"d</span><span class="s3">ur</span>ac<span class="s5">i</span>ón <span class="s3">rea</span>l" <span class="s2">es </span>e<span class="s3">l&nbsp;</span>tiem<span class="s1">po </span><span class="s4">transcur</span><span class="s3">ri</span><span class="s4">do </span>desde <span class="s3">la </span>fecunda<span class="s4">ción&nbsp;</span>hasta el par<span class="s3">t</span>o.</p> ER -