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In utero intervention for fetal anomalies or abnormal placentation should only occur for conditions known to result in ongoing irreversible harm to the fetus or increased risk to the mother. For in utero fetal treatment procedures there should be evidence that potential harm from the fetal lesion is best mitigated by intervention at a gestational age with superior outcomes than ex utero neonatal treatment. Although most fetal anomalies are not amenable to in utero treatment, two conditions with significant evidence of improved outcomes include use of fetoscopic laser photocoagulation to treat twin-to-twin transfusion syndrome and mid-gestational in utero open fetal surgery to treat myelomeningocele. Minimally invasive fetal treatment techniques are typically performed under local or regional anesthesia, while open fetal procedures are done under general anesthesia. Successful fetal intervention requires extensive multidisciplinary planning and collaboration. In addition to anesthetic considerations employed for nonobstetric surgery during pregnancy, fetal anesthesia and analgesia, fetal monitoring, uterine relaxation, and preparation for emergent maternal and fetal events are all necessary. Future research into anesthetic techniques for various maternal-fetal procedures is key to optimizing clinical outcomes and advancing the field of fetal surgery and maternal-fetal medicine.
The physical and psychological changes a woman undergoes during pregnancy impact various areas of her life, including her sexual life. Sexuality during pregnancy is important, as there is a strong link between sexual satisfaction and overall life satisfaction. Women’s sexual response, classically divided into four stages (excitement/arousal, plateau, orgasm, and resolution), is more complex. Several hormones are involved in sexual arousal, such as oxytocin, β-endorphin, and prolactin. The effect of orgasm during pregnancy has not been well studied and available evidence is lacking. In the absence of evidence of harm, it seems reasonable to conclude that orgasm is safe in pregnancy, at least in low-risk ones.
Intensivists, physicians specially trained in critical care medicine, and other members of the ICU care team may have in-depth knowledge of monitors not available to the practitioner, who does not use them on a daily basis. The most commonly encountered non-invasive monitors are electrocardiography (ECG), pulse oximetry, blood pressure measurement by manometry, urine output, pulse oximetry and end-tidal carbon dioxide monitoring. Central venous pressure (CVP) is measured by placing a catheter into or near the right atrium or vena cava. Central venous pressure can be measured via a small microcatheter inserted into the frontal white matter. The physiological basis for intracranial pressure (ICP) monitoring is based on two separate but related mechanisms that contribute to cerebral ischemia. Fetal monitoring, in practice, is generally limited to the generation and interpretation of fetal heart rate patterns obtained through Doppler ultrasound.
The main aim of fetal monitoring is to timely identify and hence to salvage fetuses that are at risk of intrapartum hypoxic injury, whilst avoiding unnecessary operative intervention to fetuses that are normoxic or those who are mounting a good compensatory response. Cardiotocography (CTG) interpretation based on pattern recognition leads to unnecessary interventions as well as lack of action as all the CTG patterns of fetal neurological injury are not currently known and the specific CTG patterns do not correlate with poor neonatal outcomes. Intrapartum hypoxia should be suspected when there are changes in the baseline heart rate (i.e. below 110 beats per minute (bpm) or above 160 bpm) and/or presence of decelerations (on auscultation for 1 min after a uterine contraction) on intermittent auscultation. The decelerations are classified as early, late and variable in relation to the uterine contractions.
A simple program for management of term twin delivery in the second stage of labor is presented. Provided that given selection criteria are met, twins at term are delivered by the vaginal route
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