Background: Low milk supply is frequently reported as a reason for exclusive breastfeeding cessation. Research aims: To determine the occurrence of, and the risk factors associated with, delayed onset of lactogenesis II among primiparas seen at a Baby-Friendly Hospital in Brazil. Method: We conducted a prospective longitudinal observational cohort study of 224 primiparas who had a singleton delivery. Data were first collected at the hospital. We assessed the onset of lactogenesis on day four postpartum, based on maternal reports of changes in breast fullness. Breastfeeding practices and Edinburgh Postnatal Depression Scale were evaluated on day seven postpartum. Using Poisson regression, we assessed significant factors associated with delayed onset of lactogenesis II. Results: Delayed lactogenesis II occurred in 18.8% ( n = 42) of participants and was significantly associated with alcohol drinking during pregnancy (IRR = 2.710, 95% CI [1.469, 4.996]); Edinburgh Postnatal Depression Scale scores ≥ 10 (IRR = 2.092, 95% CI [1.118, 3.916]), and the age of the mother (IRR: 1.081, 95% CI [1.039, 1.125]). Conclusion: Postpartum depression and alcohol ingestion during pregnancy may be associated with lactogenesis II delay, but more research is needed to elucidate the directionality of these relationships. Older mothers are at risk of delayed lactogenesis II onset. The frequency of delayed lactogenesis in this population is similar to the rates seen in previous Latin America studies and much lower than the ranges seen in North America, possibly because of the low proportion of obesity and severe gestational diabetes in this sample.
RESUMOEste trabalho teve como objetivo avaliar a variação entre diferentes raças das medidas radiográficas da articulação lombossacra. Foram utilizados 20 cães da raça Pastor Alemão, 20 cães da raça Rottweiler e 20 da raça Doberman. A articulação lombossacra foi avaliada radiograficamente com os membros pélvicos em posição neutra (N), em ventroflexão (VF) e dorsoextensão (DE). Foram mensurados os ângulos entre os processos articulares de L7 e S1 (PA), entre as epífises distal de L7 e proximal de S1 (EPIF), o ângulo lombossacro (LS), a amplitude de movimento (ROM) desses ângulos, o ponto de interseção das retas que formam esses ângulos e a respectiva ROM. Os resultados mostraram que a altura do canal vertebral em L7 é menor no Pastor Alemão (9,5mm) e maior no Rottweiler (10, (Scharf et al., 2004). A estenose degenerativa do canal vertebral lombossacro é a causa mais comum de síndrome da cauda equina e ocorre mais comumente em cães pertencentes às raças de médio e grande porte, como o Pastor http://dx The lumbosacral joint was assessed radiographically with the hind limbs in neutral position (N), in ventral flexion (VF) and dorsal extension (DE). We measured the angles between the L7 and S1 articular processes (PA), between the distal L7 and S1 proximal epiphysis (EPIF), the lumbosacral angle (LS), range of motion (ROM) of these angles, the intersection point of the lines that form these angles and their ROM. The results show that the height of the spinal canal in L7 is lower in German Shepherds (9.5mm) than in Dobermans (10mm) and Rottweilers (10.5 mm). The EPIF-DE was higher in the German Shepherd (38.03°). The PA-N was lower in German Shepherd (15.98 °). The LS-VF was lower in the Doberman (170.01°), and LS did not differ statistically between German Shepherd (179.17°) and Rottweiler (176.61°). The ROM of the LS and EPIF angles were greater in the German
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