Expectant mothers with sexually transmitted infections are more likely to give birth prematurely, 研究は見つけます

New information on how having a sexually transmitted infection before or during pregnancy can affect newborns is emerging.

Having chlamydia, gonorrhea or syphilissometimes called “サイレント” infections due to a dearth of apparent symptoms in the early stageshas been associated with a higher risk of giving birth too early, によると study published Monday in the journal JAMA Network Open.
Preterm birthwhen a baby is born before 37 週’ gestationis the leading cause of newborn complications and death worldwide, affecting 10% of live-born deliveries in the United States, 研究の著者は書いた. また, インクルード number of preterm births slightly rose from 2016 に 2019, so more work to identify risk factors has been needed.
    US cases of chlamydia, gonorrhea and syphilis also increased から 2013 に 2018, 米国疾病管理予防センターによると. Maternal STIs have been known to harm developing fetuses, but previous studies on this link have been inconclusive, the researchers wroteso the authors used nationwide birth certificate data and medical records of more than 14 million mother-infant pairs to examine the links between preterm birth and mothersinfections.
      Of all US mothers who had given birth between January 2016 と12月 2019, 1.9% (267,260) had chlamydia, 0.3% had gonorrhea and 0.1% were infected with syphilis before or during their pregnancies. Among all newborns, 8% (1,146,800) were born prematurely. Mothers with chlamydia, gonorrhea or syphilis were 1.04, 1.10 そして 1.17 times more likely to have a moderately preterm birthmeaning between 32 そして 36 weeks of gestationthan women without STIs, それぞれ, the authors found.
        Infections with gonorrhea and syphilis were more strongly associated with very preterm births, which meant between 28 そして 31 週.
        Even though some of the effects are small, STIs do appear to increase your chance of delivering preterm,” said Kelli Ryckman, a coauthor of the study and a professor of epidemiology at the University of Iowa’s College of Public Health.

          How STIs could affect birth time

          クラミジア そして gonorrhea are common sexually transmitted infections that can affect people of all genders who have vaginal, anal or oral sex with someone who is infected, CDCによれば. Chlamydia can cause serious, permanent damage to a woman’s reproductive system. And both STIs can cause preterm birth and be transferred to babies during childbirth, possibly causing pneumonia and ear infections.
          This study didn’t investigate exactly how having STIs before or during pregnancy could affect when infants are born, but the authors have some ideas. Chlamydia and gonorrhea could move up through the vagina and cervix and influence the occurrence of chorioamnionitis, a condition wherein bacteria infects the membranes surrounding the fetus and the fluid in which the fetus floats.
          Syphilisspread by direct contact with a syphilis sore on or near the penis, 膣, anus, rectum or mouthmay cause systemic infection and trigger the placenta to use its inflammatory response, the researchers suggested.
          All of these responses may cause inflammation and activate the maternal and/or fetal immune system, which is an established cause of preterm birth,” the researchers suggested. “しかしながら, whether a maternal infection induces preterm birth may also depend on the characteristic and concentration of the pathogen and the timing of infection.
          ザ・ “massive sample size of this studyand other aspects might suggest precision, だが “do not necessarily suggest validity,” wrote Drs. Emily Adhikari and Scott Roberts in a commentary on the study. The doctors, who are affiliated with the obstetrics and gynecology department at the University of Texas Southwestern Medical Center, ダラス, weren’t involved in the study.
          Observational studies such as this one can’t take into account individual behaviors and other factors potentially responsible for preterm birth, including chronic stress, gestational age of diagnosis or lack of access to treatment, Adhikari and Roberts wrote.
          Without a better understanding of which infections were and were not treated, we have little to guide a search for targeted interventions to prevent preterm birth in a cohort with treatable infectious diseases,” 彼らは付け加えた.

          Staying safe

          Being in a long-term, mutually monogamous relationship with someone who has recently been tested for STIs and received negative results can lower your risk of contracting an STI, the CDC says. You can also protect yourself by using latex condoms correctly every time you have sex. しかしながら, know that you can still get syphilis from sores in areas not covered by a condom.
          For women, symptoms of chlamydia, gonorrhea and syphilis don’t always appear given the sometimes silent nature of early stages of infection. But symptoms can include abnormal vaginal discharge or bleeding; burning sensation while peeing; rectal pain, discharge, itching or bleeding; or painful bowel movements. Early signs of syphilis are sores that can be firm, round and painless.
          The CDC and US Preventive Services Task Force recommend pregnant women who are 25 or younger, or high-risk, get screened for chlamydia and gonorrhea in the first trimester. High-risk factors include previously having an STI, new or multiple sex partners, sex with a person who has an STI, or inconsistent condom use. Higher-risk women should be screened again during the third trimester. All pregnant women should be screened for syphilis early, with a second screening in the third trimester recommended for higher-risk women, the CDC advises.
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          If you’re pregnant andsuspect you could have an STI, consult with your primary care physician or obstetrician and get tested and then treated if you are infected,” Ryckman said. “If you are infected with an STI, make sure to discuss your risks for pregnancy complications with your obstetrician.
          Below are the CDC’s resources for more information and clinic referrals:
          • CDC-INFO
          1-800-CDC-INFO (800-232-4636)
          TTY: 1-888-232-6348
            919-361-8488
            • Locate the blue box on this page to use the CDC’sFind an STD testing site near youfunction.

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