vena cava syndrome supine hypotensive syndrome can be prevented by

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2019 Dec 2;32(23):3923-30. doi:10.1080/14767058.2018.1478958, Lee SW, Khaw KS, Ngan Kee WD, Leung TY, Critchley LA. Physical activity and exercise during pregnancy and the postpartum period. As your heart beats, it pumps blood to the rest of your body. syndrome is impairment of venous return to the heart and consequent reduction in cardiac output as a result of compression of the inferior vena cava by the tumour when the subject is supine2. Committee Opinion No. After the fetus is delivered, the operating bed is returned and the cushion is taken out, so that the lying-in woman lies on his back until the operation is completed. 2013;72(1):67-71. doi:10.5603/FM.2013.0011, Sanchez C, Chinn BT. Maternal hemodynamic adaptations were found to be consistent across groups irrespective of whether the women had symptoms of supine hypotension. Here are some tips. It has been pointed out by Bull3 that when the inferior vena cava is Studies in awake pregnant women have demonstrated reduced ejection fraction and cardiac output in the supine position compared to the left lateral position that may reduce utero-placental blood flow to the fetus since the gravid uterus compresses the inferior vena cava. When you're pregnant, the hormones dilate or expand the blood vessels and open up additional vessels for more circulation. Abstract: Supine hypotensive syndrome is characterized by severe supine hypotension in late pregnancy, whose clinical presentation ranges from minimal cardiovascular alterations to severe shock, resulting from inferior vena cava compression by gravid uterus. Definition: Shocklike symptoms that occur when venous return to the heart is impaired by weight of gravid uterus causing partial occlusion of the vena cava… The condition gets its name because these pregnant women experience hypotension when lying on their backs, or in a “supine” position. However, you may have more of a risk for encountering supine hypotension if:, If you’re home and you feel symptoms of low blood pressure while you’re lying down, you should:. Left lateral tilt to 15°–30° is achieved by placing a wedge under the right hip and is used in practice for labor and delivery as well as nonobstetric surgery in pregnant patients undergoing anesthesia to … If you want more information about supine hypotension or if you have any symptoms or questions about your blood pressure, be sure to talk to your doctor. 2015 Feb 1;125(2):347-55. doi:10.1097/AOG.0000000000000627. The weight of the uterus applies pressure on the descending aorta and vena cava. When lying flat on the back, approximately 10% of expecting women experience symptoms of supine hypotension within three to ten minutes. The symptoms include: As your pregnancy progresses, your uterus and baby grow and weigh more. You can turn onto your side (left side) or sit up. When you’re pregnant, and you lie flat on your back, the weight of the baby and your uterus press down on your spine and abdominal organs. 2009;3. In pregnancy, definitive management of the IVCS is to deliver the baby. In pregnancy, definitive management of the IVCS is to deliver the baby. We report a case of a 41‐year‐old 39‐week‐pregnant woman found dead supine. Treatment will vary depending on the cause of the vena cava compression or interruption. British Journal of Anaesthesia. Try using pillows or a wedge to sleep tilted toward or on your left side and avoid exercising on your back. Folia morphologica. You don’t have to lie on your back during labor. Regular hospitals have experience in responding to emergencies and scientific treatment procedures, which can prevent the hypotension syndrome of lying-in women in the supine position to the greatest extent, and provide greater protection for the life safety of women and fetuses. The systolic pressure is the top number, and the diastolic pressure is the bottom number. Supine Postures. Plus, when exercise is performed in the supine position, it is possible that an already reduced cardiac output would be preferentially redirected to the exercising muscles and … Autopsy & case reports. When uterine contractions begin If amniotic fluid is … It causes maternal blood pressure to drop and triggers maternal supine hypotension syndrome. This syndrome occurs in cesarean section, mainly related to the following factors: ... and a drop in blood pressure, which can lead to supine hypotension syndrome. 2013 Feb;5(1):88. Maternal hypotension and fetal hypoxia may occur, which betide referred facing as supine hypotensive syndrome or supine vena cava syndrome. In both groups a reduction in blood flow through the inferior vena cava occurred in the supine … So, how to prevent the hypotensive syndrome of the lying-up woman during cesarean section? Another possible factor is the presence of marked lordosis of the lumbar spine. Management of pregnant patient in dentistry. This is because the accessory ligaments and abdominal muscles of the uterus will be in a relaxed state at this time, and the uterus loses its support and at the same time is compressed by the influence of gravity on the inferior vena cava and abdominal aorta, resulting in a sudden decrease in the return blood volume, so it is also called “inferior vena cava Oppression syndrome”. 2012 Oct 11;109(6):950-6. doi:10.1093/bja/aes349, Kim DR, Wang E. Prevention of supine hypotensive syndrome in pregnant women treated with transcranial magnetic stimulation. Not everyone does. Compression of your major blood vessels can affect your heart rate and circulation. In other conditions, medical or surgical treatment to remove or relieve the offending structure will relieve symptoms. Lying on your side can make your hips feel sore. This syndrome occurs in cesarean section, mainly related to the following factors: When the postpartum woman takes the supine position during cesarean section, the enlarged uterus in the third trimester will cause compression of the inferior vena cava and abdominal aorta, resulting in obstruction of pelvic and inferior vena cava return flow, and the blood reaching the heart is suddenly reduced. Hypertension Research. Try to find a comfortable position or use pillows or a mattress topper to ease the pressure on your hips. ‘supine hypotensive syndrome’ – was first highlighted almost 60 years ago1. It is a frequent cause of low maternal blood pressure (hypotension), which can result in loss of consciousness and in extreme circumstances fetal demise. Pregnant patients in the supine position have compression of the inferior vena cava and aorta by the gravid uterus, which leads to decreased venous return and thus hypoperfusion. Xu N, Ma T, Tian ZL, Wang KJ. The amount of blood your heart pumps out may decrease. Southern African Journal of Anaesthesia and Analgesia. Clinics in colon and rectal surgery. In addition, maternity births should choose regular hospitals. You may not even have any symptoms and not realize it's a bit low unless the doctor tells you at your prenatal visit. syndrome was produced in 24 newborn lambs following l-2 hours of maternal hypotension induced with ArfonadR, 24 hmrs prior to delivery. Supine Hypotensive Syndrome: A Comprehensive Review of Literature. Here is to introduce a maternal supine hypotension syndrome that seriously threatens the life of cesarean section women and fetuses. The force of the blood through your arteries is your blood pressure. The pressure can squeeze two of the largest blood vessels in your body – the aorta and the inferior vena cava., Pressure on the aorta or vena cava can affect your circulation or the flow of blood in your body. Two numbers measure blood pressure. Committee Opinion No. Setty T, Bampoe S. Obesity in pregnancy. Chances are you’ll wake up and move if something isn’t right. It can make you feel dizzy, faint, or sweaty and lead to severe complications that can harm both you and your baby. Predicting spinal hypotension during Caesarean section. The collateral venous system in late pregnancy: A systematic review of the literature. When the pregnant woman lies in the supine position, the weight of the fetus compresses the vena cava and descending aorta, decreasing the blood return to the right atrium. 2014 May 1;42(3):301-6. doi:10.1515/jpm-2013-0182, Committee on Obstetric Practice. Treatment will vary depending on the cause of the vena cava compression or interruption. (The inferior vena cava is the large vein which returns blood to the heart from the lower body; it is located at the back of the body near the spine.) So, your blood pressure may naturally go down a little bit. Your blood pressure can also go up or down during the day, depending on your activity. To prevent supine hypotension, you can try not to lie flat on your back. in the supine position. 2015;126(6):e135-142. Thank you, {{form.email}}, for signing up. Get diet and wellness tips to help your kids stay healthy and happy. 2018 Dec;133:e164–73. In these instances of supine hypotension syndrome in pregnancy, simple repositioning can be life saving. Besides supine hypotension and the natural change in circulation from pregnancy hormones, low blood pressure during pregnancy can have other causes. Healthy blood pressure measures less than 120 millimeters of mercury (mm Hg) over 80 mm Hg.3 When you're pregnant, the hormone… Each pump sends the blood out with force. How to prevent maternal supine hypotension syndrome 2019 Jun 6. Hemorrhoids. Lying on the back after the first trimester of pregnancy may cause vena cava syndrome, and thus it should be avoided during asana practice. Bánhidy F, Ács N, Puhó EH, Czeizel AE. When your blood pressure falls from lying on your back during pregnancy, it’s called supine hypotension syndrome. StatPearls Publishing. Maternal–Newborn Nursing: Vena Cava Syndrome (Supine Hypotensive Syndrome) Focus topic: Maternal–Newborn Nursing. Pressure on the main blood vessels can lead to an interruption in your blood flow. When the blood does not return from the lower body back to the heart the way it should, it can back up in the veins of your lower body. Wome… Krywko DM, King KC. It may go down when you're resting or up when you're active, excited, or stressed. Sleeping on your back in the second and third trimester is not recommended. The systolic pressure is the top number, and the diastolic pressure is the bottom number. Often, treatment includes positional changes, avoidance of supine positioning, especially on the right side. Recent literature has reported an association between maternal supine sleep position and stillbirth during late pregnancy. If the blood flow is reduced or blocked for too long, it can cause complications such as: In the most severe and rare cases, it can lead to:. Haemodynamic effects from aortocaval compression at different angles of lateral tilt in non-labouring term pregnant women. In addition, due to the combination of lumbar and hard anesthesia, the muscles are relaxed, and the abdominal muscles cannot support the uterus. SIGNS AND SYMPTOMS. Diaphragm compression The maternal enlarged uterus will also compress the diaphragm, causing vagus nerve excitement, resulting in a slow heartbeat, dilated heart blood vessels, and a drop in blood pressure, which can lead to supine hypotension syndrome. The superior vena cava is a short and wide vein on the right side of the chest that drains blood from the head, upper body and both arms, and delivers all of that blood to the right atrium of the heart. This condition is referred to as vena cava compression syndrome or supine hypotensive syndrome. Supine hypotension syndrome is more than a natural drop in blood pressure from pregnancy hormones or rest. Sleeping flat on your back from mid-pregnancy on, Going for an MRI or other tests where you may have to lie on your back. Aortocaval compression syndrome. Humphries A, Stone P, Mirjalili SA. Children are at risk of severe suffocation and even life-threatening. With local Ethics Research Committee approval and written informed consent, volunteers with normal, healthy, singleton pregnancies in the third trimester were recruited from antenatal wards and clinics. A slight drop in blood pressure is typically not harmful to you or your baby. By using Verywell Family, you accept our, Feeling Dizzy or Passing Out During Pregnancy, The Best Sleeping Positions During Pregnancy, Peripartum Cardiomyopathy: Symptoms, Diagnosis, and Treatment, Coping With Low or High Blood Pressure While Pregnant, What to Know About Vaginal Varicose Veins, All the Ways Your Body Changes During Pregnancy, 10 Tips for Better Sleep During Pregnancy, What You Should Know About Pregnancy (Prenatal) Massage, What to Expect During Pregnancy Ultrasounds, Aortocaval compression syndrome: time to revisit certain dogmas, ACOG Practice Bulletin No. Journal of Capital Medical University. ... so it is also called “inferior vena cava Oppression syndrome”. It may be due to:. Kurien S, Kattimani VS, Sriram RR, Sriram SK, VK PR, Bhupathi A, Bodduru RR, Patil NN. If you are in the hospital, having a test, in an emergency situation, or in labor, the healthcare team may treat you by: During pregnancy, supine hypotension syndrome is a possibility whenever there’s a chance you might be lying flat on your back. American College of Obstetricians and Gynecologists. doi: 10.1097/AOG.0000000000003020, Humphries A, Mirjalili SA, Tarr GP, Thompson JM, Stone P. The effect of supine positioning on maternal hemodynamics during late pregnancy. Journal of forensic sciences. You can also sleep up on an angle (incline) with your head and upper body higher than your lower body. Talk to our Chatbot to narrow down your search. These fetuses became hypotensive, they made gasping efforts and a … Minimize the impact of anesthesia. In this position the gravid uterus almost completely obstructs the inferior vena cava. However, there is no need to panic if you wake up on your back because you rolled over while you were sleeping. 650, Hypotension in pregnant women: a population-based case–control study of pregnancy complications and birth outcomes, A huge ovarian mucinous cystadenoma causing virilization, preterm labor, and persistent supine hypotensive syndrome during pregnancy, Sleep position, fetal growth restriction, and late-pregnancy stillbirth: the Sydney stillbirth study, Back to basics: avoiding the supine position in pregnancy, Evaluation on the Influence of Supine Hypotension Syndrome on Newborns by the Neonatal Cord Blood Gas Analysis during Caesarean Section. Hacker NF, Gambone JC, Hobel CJ. 2017 Dec 1;125(6):1975-85. doi:10.1213/ANE.0000000000002313, American College of Obstetricians and Gynecologists. Journal of perinatal medicine. The doctor says that Olivia’s baby and uterus are getting bigger, and the uterus can press down on one of Olivia’s main blood vessels, called the inferior vena cava. Maternal women have varying degrees of nervousness, depression, and other negative emotions due to the history of previous episodes or due to fetal position, twins, huge children, or abnormal birth canal. Compression of the Vena Cava and Descending AortaCompressing Vine Cave and Descending A-orca. 2014 Aug 15;218(1-2):247-8. doi:10.1016/j.psychres.2014.04.001. Sign occurs. All volunteers had their height and weight measured. Supine is a medical term for lying flat on your back. Anesthesia & Analgesia. 2014 Jul 4;20(4):170-3. doi:10.1080/22201181.2015.959336, Benninger B, Delamarter T. Anatomical factors causing oedema of the lower limb during pregnancy. When does the onset of labor begin? Hacker & Moore's essentials of obstetrics and gynecology. If you are on your back and you suddenly feel dizzy or strange, change your position. The intraoperative methods for preventing maternal supine hypotension syndrome are as follows: Choosing the right posture After entering the operating room, the medical staff should first carefully ask the medical history of the mother. Each volunteer was asked to lie in 7 positions: lying horizontal on their left or right side (left lateral and right lateral), lying horizontal on their back (supine), lying on their back but tilted laterally to the left or right (left 12.5°, left 5°, right 5°, and right 12.5°). As long as you’re not having any complications and it’s safe, you can use. 2011 Mar;24(01):005-13. doi:10.1055/s-0031-1272818, Linicus Y, Kindermann I, Cremers B, Maack C, Schirmer S, Böhm M. Vena cava compression syndrome in patients with obesity presenting with edema and thrombosis. You or your baby are in a position that may press on the blood vessels. You should transport the patient on her left side as this can prevent supine hypotensive syndrome. Warland J. 2017 Feb 15;595(4):1017. doi:10.1113%2FJP273705. The force of the blood through your arteries is your blood pressure. Suffering a trauma such as a car accident where you need to go on an emergency backboard. 2019;133(1):e26-e50. Obstetrics Gynecology. You can also use ice or heat to help relieve sore hips. Here are some concerning situations. Transl Perioper & Pain Med 2014, 1(2): 22-26. doi:10.31480/2330-4871/013. Maternal supine hypotension syndrome is a syndrome in which the maternal dizziness, nausea, vomiting, rapid heartbeat, and varying degrees of blood pressure drop occur when the supine position is taken during cesarean section. The weight of the entire uterus will be completely compressed on the inferior vena cava, resulting in problems such as blood stasis at the distal end and a sudden drop in blood volume. The Journal of physiology. If it continues to happen, call your doctor. Once the syndrome is not dealt with in time, the maternal woman will have severe hypoxia and acidosis due to insufficient blood supply to the placenta, thereby seriously threatening the life safety of the maternal and fetus. 2019 Mar 21:75. Psychiatry research. Kienzl D, Berger-Kulemann V, Kasprian G, Brugger PC, Weber M, Bettelheim D, Pusch F, Prayer D. Risk of inferior vena cava compression syndrome during fetal MRI in the supine position–a retrospective analysis. doi:10.1097/AOG.0000000000003074, Bishop DG. Low blood pressure is only a concern if you have symptoms, or it's extremely low. Inducing factors of hypotension syndrome A 62-year-old man underwent removal of a suspected metastatic brain tumor. As your heart beats, it pumps blood to the rest of your body. Supine hypotension syndrome is a type of low blood pressure that could be dangerous. 650. During the cesarean section, medical staff should pay attention to observe whether the maternal women have the symptoms of hypotension such as paleness and yawning. Venous compression is more marked, but aortic compression also occurs, especially in the supine position. Rarely, it may manifest even from the fifth month of pregnancy or postpartum, as well as in the pelvic tilt or sitting positions. The Journal of Maternal-Fetal & Neonatal Medicine. Secondly, how do you prevent supine hypotensive syndrome? https://quizlet.com/152873100/module-b-reproduction-flash-cards The flow of blood returning to your heart may slow down. Two numbers measure blood pressure. Signs and sympfacingms include dizziness, lightheadedness, and pale, clammy skin. The supine hypotensive syndrome is especially present during Cesarean sections as a result of muscle relaxant drugs administered to the patient during the operation. Cardiac output can decrease by 30%–40% in patients with this syndrome. 203: Chronic Hypertension in Pregnancy, The effect of supine positioning on maternal hemodynamics during late pregnancy, Haemodynamic effects from aortocaval compression at different angles of lateral tilt in non-labouring term pregnant women, Prevention of supine hypotensive syndrome in pregnant women treated with transcranial magnetic stimulation, The collateral venous system in late pregnancy: A systematic review of the literature, Supine Hypotensive Syndrome: A Comprehensive Review of Literature, Management of pregnant patient in dentistry, Risk of inferior vena cava compression syndrome during fetal MRI in the supine position–a retrospective analysis, Committee Opinion No. Your blood pressure can fall. Exertional Dyspnea & Supine Hypotensive Syndrome Symptom Checker: Possible causes include Hypertension. Over-the-counter drugs should also be used with caution in pregnant women, The pain everywhere in my body turned out to be heart disease, “Invisible killer” with heavy taste and health, Happy to start health under the epidemic 2021. Journal of forensic sciences, Physical activity and exercise during pregnancy and the postpartum period. Obesity. 2011 Jan;34(1):55. doi:10.1038/hr.2010.172, Kucur SK, Acar C, Temizkan O, Ozagari A, Gozukara I, Akyol A. Healthy blood pressure measures less than 120 millimeters of mercury (mm Hg) over 80 mm Hg.. 1 The symptoms may be alleviated by changing the parturient patient to a left lateral position, or by shifting the weight of the uterus to the left. Often, treatment includes positional changes, avoidance of supine positioning, especially on the right side. After the woman has taken the number of decubitus supine positions during cesarean section, if she has a hypotensive syndrome in the supine position of the delivery woman, she will show symptoms of nausea, vomiting, dizziness, chest tightness, paleness, rapid heartbeat and shortness of breath. Brian Levine, MD, MS, is board-certified in obstetrics and gynecology as well as in reproductive endocrinology and infertility. Obstetrics & Gynecology. Read our, Medically reviewed by Andrea Chisholm, MD, Medically reviewed by Brian Levine, MD, MS, FACOG, Verywell Family uses cookies to provide you with a great user experience. Anesthesia If a woman undergoes combined lumbar and hard anesthesia during cesarean section, anesthesia will cause dilation of the blood vessels in the anesthesia area, affect the blood circulation, and weaken the ability to compensate for circulation. A small number of women experience supine hypotension, thought to be due in part to inadequate collateral venous circulation. In this study, the table was tilted by 15° to the left to prevent supine hypotensive syndrome, but according to Bravema , there are some cases where the wedge under the right hip should be heightened by about 30° if the uterus is large, because of plural pregnancy or hydramnion. 2012 Nov;57(6):1646-9. doi:10.1111/j.1556-4029.2012.02165.x. When blood pressure falls low enough, the result is acute onset dizziness. 766: Approaches to Limit Intervention During Labor and Birth, Predicting spinal hypotension during Caesarean section, Anatomical factors causing oedema of the lower limb during pregnancy, Vena cava compression syndrome in patients with obesity presenting with edema and thrombosis, Supine hypotensive syndrome as the probable cause of both maternal and fetal death. Supine Hypotensive Syndrome *~B and B~* 1 child; Montana 6350 posts Jan 22nd '09 Okay, So the other day at my OB appointment, my doctor told me that my baby is lying on my inferior Vena Cava … Psychological nursing emotional tension may lead to maternal supine hypotension syndrome. A huge ovarian mucinous cystadenoma causing virilization, preterm labor, and persistent supine hypotensive syndrome during pregnancy. Aortocaval compression syndrome is compression of the abdominal aorta and inferior vena cava by the gravid uterus when a pregnant woman lies on her back, i.e. Your collateral circulation system (the extra pregnancy blood vessels) is not working well enough. Medically or surgically treating or removing the underlying cause. Once the above symptoms are found, the maternal mask should be given oxygen immediately, if necessary, intravenous injection 10 ~15 mg ephedrine, and quickly remove the fetus. 2016 Aug;24(8):1648-52. doi:10.1002/oby.21506, De‐Giorgio F, Grassi VM, Vetrugno G, d’Aloja E, Pascali VL, Arena V. Supine hypotensive syndrome as the probable cause of both maternal and fetal death. Obstet Gynecol. We report a case of a 41‐year‐old 39‐week‐pregnant woman found dead supine. Conclusions: Supine hypotensive syndrome is characterized by severe supine symptoms and hypotension in late pregnancy, which compel the unconstrained subject to change position. Whether birth or cesarean section, childbirth is an important “passing through” process in a woman’s life. 3 described a significant decrease in blood pressure in 18 of 160 term parturients placed in a supine position; they ascribed the syndrome to occlusion of the inferior vena cava (IVC) by the gravid uterus. To prevent Supine Hypertensive Syndrome (SHS), the American College of Obstetricians and Gynecologists (ACOG) advises women not to exercise on their backs (supine) after their first trimesters. Respond to abnormalities in a timely manner. Norfloxacin|Norfloxacin HCL|Norfloxacin Nicotinate|Norfloxacin Lactate|Pefloxacin Mesylate|Mitomycin C|. It will also affect the vascular perfusion of the uterus, kidneys and placenta, resulting in intrauterine hypoxia, placental abruption, fetal heart rate slowing or fast or irregular, so that the fetus appears distressed in the uterus. How to prevent maternal supine hypotension syndrome Abstract: Supine hypotensive syndrome is characterized by severe supine hypotension in late pregnancy, whose clinical presentation ranges from minimal cardiovascular alterations to severe shock, resulting from inferior vena cava compression by gravid uterus. We report a patient who developed sustained hypotension during craniotomy; further, owing to a mediastinal mass, critical tracheal stenosis and brain edema were observed after craniotomy, despite the absence of preoperative symptomatic superior vena cava (SVC) syndrome. Maternal supine position The incidence of severe maternal symptoms after lying supine for three to seven minutes at term is approximately 10%3. Elsevier Health Sciences; 2015 Nov 10. To counteract the supine hypotensive syndrome vasopressors have been administered to increase the patient's blood pressure. Ⓒ 2021 About, Inc. (Dotdash) — All rights reserved, Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Obstetrics and gynecology. Hypotension is low blood pressure. 2017 Nov;30(8):1087-95. doi:10.1002/ca.22959, Pei-Shan Zhao. Superior vena cava syndrome occurs when blood flow through the superior vena cava is obstructed either from within due to a blood clot or from external compression.. pregnant women and are sometimes diagnosed as supine hypotensive syndrome. ACOG Practice Bulletin No. Resultant symptoms usually mean that women in late pregnancy naturally avoid the supine position during sleep2. It can also interfere with the flow of blood to your uterus and baby.. Lee AJ, Landau R. Aortocaval compression syndrome: time to revisit certain dogmas. If your blood pressure goes down a little during pregnancy, you usually don't have to worry. Evaluation on the Influence of Supine Hypotension Syndrome on Newborns by the Neonatal Cord Blood Gas Analysis during Caesarean Section. If the mother has a pelvic stenosis that is not proportional to the pelvis, horizontal position, twins, buttocks, huge children, and the mother has a supine hypotension In the history of syndrome, etc., after the maternal anesthesia, tilt the operating table about 30 degrees to the left and fix the maternal with restraint straps to prevent the maternal from falling into the bed. Be careful standing up if you feel dizzy or faint while lying down. Clinical Anatomy. The gravid uterus of late pregnancy normally causes aortocaval compression. To endure pain, she has to face various risks. From maternal anesthesia to the delivery of the fetus, inject 600-1000 ml of Ringer’s solution to the mother to increase the maternal cardiac output, which can reduce and prevent the synthesis of maternal supine hypotension to a certain extent. You can prevent supine hypotension and the problems it causes by not lying flat on your back, especially after the fifth month. Maternal women should also have the relevant knowledge of anatomical cesarean delivery before birth, and be prepared to face the unexpected situation in the production, overcome the fear, and calmly face the cesarean section. Journal of international oral health: JIOH. Obstetric Anesthesiology: A Case-Based Approach. Establishing left uterine displacement by elevating the patient’s right side greater than 15 degrees allows the uterus to be displaced off the inferior vena cava. Therefore, the nursing staff should ease the maternal uneasiness with kind attitude, patient encouragement and gentle nursing actions, so that the maternal have a sense of trust, security and self-confidence, so as to maintain a good attitude to accept the cesarean section of the medical staff operating. Once you’re in your second trimester, you should avoid exercises that have you lie on your back, including some. Inferior vena cava syndrome (IVCS) is a constellation of symptoms resulting from obstruction of the inferior vena cava.It can be caused by physical invasion or compression by a pathological process or by thrombosis within the vein itself. It is a decrease of the systolic pressure (the top number) of at least 15 mm Hg to 30 mm Hg when lying on your back.. Hypotension in pregnant women: a population-based case–control study of pregnancy complications and birth outcomes. Back to basics: avoiding the supine position in pregnancy. 203: Chronic Hypertension in Pregnancy. At the same time, use a soft cushion to raise the right hip of the maternal Around 5 cm.

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