Women with a history of GDM have a greatly increased risk of conversion to type 2 diabetes over time (108). Chronic diuretic use during pregnancy is not recommended as it has been associated with restricted maternal plasma volume, which may reduce uteroplacental perfusion (105). ADA Releases 2021 Standards of Medical Care in Diabetes Centered on Evolving Evidence, Technology, and Individualized Care, Problem Solving to Improve Diabetes Management, Make a Difference with Positive Self-Talk. Gestational Diabetes Screening and Treatment Guideline . Target range 63140 mg/dL (3.57.8 mmol/L): TIR, goal >70%, Time below range (<63 mg/dL [3.5 mmol/L]), goal <4%, Time below range (<54 mg/dL [3.0 mmol/L]), goal <1%. E A dosage of 162 mg/day may be acceptable E; currently, in the U.S., low-dose aspirin is available in 81-mg tablets. Therefore, all women should be screened as outlined in Section 2, Classification and Diagnosis of Diabetes (https://doi.org/10.2337/dc22-S002). The pharmacologic basis for better clinical practice, Pharmacokinetics, efficacy and safety of glyburide for treatment of gestational diabetes mellitus, Glibenclamide, metformin, and insulin for the treatment of gestational diabetes: a systematic review and meta-analysis, Groupe de Recherche en Obsttrique et Gyncologie (GROG), Effect of glyburide vs subcutaneous insulin on perinatal complications among women with gestational diabetes: a randomized clinical trial, Metformin compared with glyburide for the management of gestational diabetes, Glyburide versus metformin and their combination for the treatment of gestational diabetes mellitus: a randomized controlled study, Comparative efficacy and safety of OADs in management of GDM: network meta-analysis of randomized controlled trials, Placental passage of metformin in women with polycystic ovary syndrome, Population pharmacokinetics of metformin in late pregnancy, Metformin in gestational diabetes: the offspring follow-up (MiG TOFU): body composition and metabolic outcomes at 7-9 years of age, Metformin use in PCOS pregnancies increases the risk of offspring overweight at 4 years of age: follow-up of two RCTs, Neonatal, infant, and childhood growth following metformin versus insulin treatment for gestational diabetes: a systematic review and meta-analysis, Intrauterine metformin exposure and offspring cardiometabolic risk factors (PedMet study): a 5-10 year follow-up of the PregMet randomised controlled trial. While individual RCTs support limited efficacy of metformin (60,61) and glyburide (62) in reducing glucose levels for the treatment of GDM, these agents are not recommended as first-line treatment for GDM because they are known to cross the placenta and data on long-term safety for offspring is of some concern (34). 15.4 Women with preexisting diabetes who are planning a pregnancy should ideally be managed beginning in preconception in a multidisciplinary clinic including an endocrinologist, maternal-fetal medicine specialist, registered dietitian nutritionist, and diabetes care and education specialist, when available. Periodontal disease is commonly seen in people with diabetes, 22-24 and is considered a complication of diabetes. Review and counseling on the use of nicotine products, alcohol, and recreational drugs, including marijuana, is important. The American Diabetes Association (ADA) is the nations leading voluntary health organization fighting to bend the curve on the diabetes epidemic and help people living with diabetes thrive. There are no data to support the use of TIR in women with type 2 diabetes or GDM. Women with a history of GDM have a greatly increased risk of conversion to type 2 diabetes over time (120). Prescription of prenatal vitamins (with at least 400 g of folic acid and 150 g of potassium iodide [17]) is recommended prior to conception. In the second and third trimesters, A1C <6% (42 mmol/mol) has the lowest risk of large-for-gestational-age infants (39,42,43), preterm delivery (44), and preeclampsia (1,45). In other words, short-term and long-term risks increase with progressive maternal hyperglycemia. Not only is the prevalence of type 1 diabetes and type 2 diabetes increasing in women of reproductive age, but there is also a dramatic increase in the reported rates of gestational diabetes mellitus. Diabetes Care, a monthly journal of the American Diabetes Association (ADA), is the highest-ranked, peer-reviewed journal in the field of diabetes treatment and prevention. women with prior gestational diabetes. 3. . Genetic carrier status (based on history): Nutrition and medication plan to achieve glycemic targets prior to conception, including appropriate implementation of monitoring, continuous glucose monitoring, and pump technology, Contraceptive plan to prevent pregnancy until glycemic targets are achieved, Management plan for general health, gynecologic concerns, comorbid conditions, or complications, if present, including: hypertension, nephropathy, retinopathy; Rh incompatibility; and thyroid dysfunction, Copyright American Diabetes Association. Diabetes shouldnt stop you from living a healthy life. However, there are insufficient data regarding the benefits of aspirin in women with preexisting diabetes (110). DKA carries a high risk of stillbirth. The prevalence of diabetes in pregnancy has been increasing in the U.S. in parallel with the worldwide epidemic of obesity. Some women develop diabetes for the first time during pregnancy. Both metformin and intensive lifestyle intervention prevent or delay progression to diabetes in women with prediabetes and a history of GDM. The American Diabetes Association released its 2022 Standards of Care, which provides an annual update on practice guidelines. Antihypertensive drugs known to be effective and safe in pregnancy include methyldopa, nifedipine, labetalol, diltiazem, clonidine, and prazosin. All women of childbearing age with diabetes should be informed about the importance of achieving and maintaining as near euglycemia as safely possible prior to conception and throughout pregnancy. Taking all of this into account, a target of <6% (42 mmol/mol) is optimal during pregnancy if it can be achieved without significant hypoglycemia. One study showed that care of preexisting diabetes in clinics that included diabetes and obstetric specialists improved care (27). E, 15.28 Postpartum care should include psychosocial assessment and support for self-care. Antihypertensive drugs known to be effective and safe in pregnancy include methyldopa, nifedipine, labetalol, diltiazem, clonidine, and prazosin. It is required that all programs that are accredited/recognized by ADCES and ADA meet these guidelines in order to bill for Medicare. Depending on the population, studies suggest that 7085% of women diagnosed with GDM under Carpenter-Coustan criteria can control GDM with lifestyle modification alone; it is anticipated that this proportion will be even higher if the lower International Association of the Diabetes and Pregnancy Study Groups (59) diagnostic thresholds are used. We help people with diabetes thrive by fighting for their rights and developing programs, advocacy and education designed to improve their quality of life. Health problems can occur when blood sugar is too high. B, 15.9 When used in addition to pre- and postprandial blood glucose monitoring, continuous glucose monitoring can help to achieve A1C targets in diabetes and pregnancy. Glucose targets are fasting plasma glucose <95 mg/dL (5.3 mmol/L) and either 1-h postprandial glucose <140 mg/dL (7.8 mmol/L) or 2-h postprandial glucose <120 mg/dL (6.7 mmol/L). ACOG and ADA recommend the following target levels to reduce risk of macrosomia Fasting or preprandial blood glucose values < 95 mg/dL Postprandial blood glucose values < 140 mg/dL at 1 hour and < 120 mg/dL at 2 hours Review weekly but may alter based on degree of glucose control Diet and Exercise Nutritional assessment and plan A Insulin is the preferred agent for the management of type 2 diabetes in pregnancy. Women with type 1 diabetes should be prescribed ketone strips and receive education on DKA prevention and detection. Absolute risk increases linearly through a womans lifetime, being approximately 20% at 10 years, 30% at 20 years, 40% at 30 years, 50% at 40 years, and 60% at 50 years (120). Diabetes in pregnancy is associated with an increased risk of preeclampsia (107). DKA carries a high risk of stillbirth. In addition, diabetes in pregnancy may increase the risk of obesity, hypertension, and type 2 diabetes in offspring later in life (1,2). A review of current evidence, 2020 by the American Diabetes Association, Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. Some women with preexisting diabetes should also test blood glucose preprandially. Blood pressure should be measured at routine diabetes visits per ADA guidelines. The OGTT is more sensitive at detecting glucose intolerance, including both prediabetes and diabetes. During pregnancy, treatment with ACE inhibitors and angiotensin receptor blockers is contraindicated because they may cause fetal renal dysplasia, oligohydramnios, pulmonary hypoplasia, and intrauterine growth restriction (20). More than 122 million Americans have diabetes or prediabetes and are striving to manage their lives while living with the disease. These associations with maternal oral glucose tolerance test (OGTT) results are continuous with no clear inflection points (38,51). One study showed that care of preexisting diabetes in clinics that included diabetes and obstetric specialists improved care (28). If only one abnormal value in the OGTT meets diabetes criteria, the test should be repeated to confirm that the abnormality persists. Your donation is free, convenient, and tax-deductible. Lower limits are based on the mean of normal blood glucoses in pregnancy (35). Today, the American Diabetes Association released the 2021 Standards of Medical Care in Diabetes. Given that early pregnancy is a time of enhanced insulin sensitivity and lower glucose levels, many women with type 1 diabetes will have lower insulin requirements and increased risk for hypoglycemia (29). 14.15 Metformin, when used to treat polycystic ovary syndrome and induce ovulation, should be discontinued by the end of the first trimester. A blood sugar level below 140 mg/dL (7.8 mmol/L) is usually considered within the standard range on a glucose challenge test, although this may vary by clinic or lab. X. 14.1 Starting at puberty and continuing in all women with diabetes and reproductive potential, preconception counseling should be incorporated into routine diabetes care. The risk for associated hypertension and other comorbidities may be as high or higher with type 2 diabetes as with type 1 diabetes, even if diabetes is better controlled and of shorter apparent duration, with pregnancy loss appearing to be more prevalent in the third trimester in women with type 2 diabetes compared with the first trimester in women with type 1 diabetes (93,94). In patients with preexisting diabetes, glycemic targets are usually achieved through a combination of insulin administration and medical nutrition therapy. Guidelines are systematically developed statements to assist patients and providers in choosing appropriate health . About the American Diabetes Association The American Diabetes Association (ADA) recently released its 2021 Standards of Medical Care, which provides healthcare professionals, researchers, and insurers with updated guidelines on diabetes care and management. If these targets cannot be met and the majority of fasting and/or postprandial values are elevated, then pharmacotherapy is recommended. Insulin sensitivity increases dramatically with delivery of the placenta. The American Diabetes Association (ADA) recently released its 2021 Standards of Medical Care, which provides healthcare professionals, researchers, and insurers with updated guidelines on diabetes care and management. Arlington, VA 22202, For donations by mail: Diabetes-specific testing should include A1C, creatinine, and urinary albumin-to-creatinine ratio. Checklist for preconception care for women with diabetes (17,19). Women of reproductive age with prediabetes may develop type 2 diabetes by the time of their next pregnancy and will need preconception evaluation. E, 14.20 Potentially harmful medications in pregnancy (i.e., ACE inhibitors, angiotensin receptor blockers, statins) should be stopped at conception and avoided in sexually active women of childbearing age who are not using reliable contraception. Long-term safety data for offspring exposed to glyburide are not available (66). In general, specific risks of diabetes in pregnancy include spontaneous abortion, fetal anomalies, preeclampsia, fetal demise, macrosomia, neonatal hypoglycemia, hyperbilirubinemia, and neonatal respiratory distress syndrome, among others. A systematic review and meta-analysis of observational studies of preconception care for women with preexisting diabetes demonstrated lower A1C and reduced risk of birth defects, preterm delivery, perinatal mortality, small-for-gestational-age births, and neonatal intensive care unit admission (8). 14.19 In pregnant patients with diabetes and chronic hypertension, a blood pressure target of 110135/85 mmHg is suggested in the interest of reducing the risk for accelerated maternal hypertension A and minimizing impaired fetal growth. In these women, lifestyle intervention and metformin reduced progression to diabetes by 35% and 40%, respectively, over 10 years compared with placebo (124). 14.21 Insulin resistance decreases dramatically immediately postpartum, and insulin requirements need to be evaluated and adjusted as they are often roughly half the prepregnancy requirements for the initial few days postpartum. In the Metformin in Gestational Diabetes: The Offspring Follow-Up (MiG TOFU) studys analyses of 7- to 9-year-old offspring, the 9-year-old offspring exposed to metformin for the treatment of GDM in the Auckland cohort were heavier and had a higher waist-to-height ratio and waist circumference than those exposed to insulin (80). The risk of an unplanned pregnancy outweighs the risk of any given contraception option. B, 14.26 Women with a history of gestational diabetes mellitus should seek preconception screening for diabetes and preconception care to identify and treat hyperglycemia and prevent congenital malformations. Concentrations of glyburide in umbilical cord plasma are approximately 5070% of maternal levels (63,64). Women with GDM have a 10-fold increased risk of developing type 2 diabetes compared with women without GDM (119). Breastfeeding may also confer longer-term metabolic benefits to both mother (127) and offspring (128). See Table 15.1 for additional details on elements of preconception care (17,19). Glyburide was associated with a higher rate of neonatal hypoglycemia and macrosomia than insulin or metformin in a 2015 meta-analysis and systematic review (65). Postprandial monitoring is associated with better glycemic control and a lower risk of preeclampsia (3234). Women with preexisting diabetic retinopathy will need close monitoring during pregnancy to assess for progression of retinopathy and provide treatment if indicated (24).
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