Extragenital diseases �in pregnancy
Medvediev M.V., MD, PhD
Department of Obstetrics and gynecology
Dnepropetrovsk medical academy
Cardiac Diseases in Pregnancy
Circulatory System
Cardiovascular Changes
DECREASE ↓
INCREASE ↑
Cardiovascular Physiology of Pregnancy
Cardiovascular Physiology of Pregnancy
Cardiovascular Physiology of Pregnancy
(due to large arteriovenous shunts at placental bed and physiologic vasodilation secondary to endothelial prostacyclin and circulating progesterone)
Colloid oncotic pressure
�The incidence and changing pattern of heart disease
Incidence of heart disease………
Sharp decline in the incidence of chronic rheumatic heart disorders.
Advances in the medical and surgical treatment of patients with congenital heart defects has resulted in an increased survival to reproductive age.
Maternal mortality from heart disease
Maternal mortality from heart disease
Cardiac diseases is also the leading cause of indirect maternal death. Of the cardiac deaths reported to the Confidential enquiry between 2000-2002, 40% were noted to have substandard care.
Deans CL, Uebing A, Steer PJ. Cardiac disease in pregnancy. In Progress in Obstetrics and Gynaecology, Vol 17, Edi Studd J, Tan S L, Chervenak FA.Churchill Livingstone 2007, 164-182.
Simulating cardiac disease
Owing to these normal changes, many healthy pregnant women have symptoms mimicking those of cardiac disease, Including:
fatigue, dyspnea, and light-headedness, & number of “abnormal” findings on physical examination, electrocardiography, and echocardiography
Management areas
Areas be considered in the clinical approach to the woman with heart disease who is pregnant or considering pregnancy:
Pre-conceptional counselling
Risk assessment
fraction < 0.40)
<2.0 cm2, aortic valve area < 1.5 cm2, or
peak left ventricular outflow tract gradient
> 30 mm Hg)
Risk assessment
A cardiac event (arrhythmia, stroke, transient ischemic attack, or pulmonary edema) before pregnancy but since a prior cardiac surgical procedure.
Risk assessment
Siu developed a risk index incorporating these factors.
In a woman with heart disease and no other risk factors, the likelihood of a cardiac event during pregnancy is about 5%, increasing to 25% with one risk factor & 75% with more than one risk factor.
Siu SC, Sermer M, Colman JM, et al. Prospective multicenter
study of pregnancy outcomes in women with heart disease.
Circulation 2001; 104:515–521.
Maternal mortality risk and cardiac disease
Group Cardiac disease Associated mortality risk
I Atrial septal defect* <1%
Ventricular septal defect*
Patent ductus arteriosus*
Pulmonary/tricuspid valve disease
Corrected tetralogy of Fallot
Bioprosthetic valve
Mitral stenosis, NYHA Class I, II
II Coarctation of aorta without valvular involvement 5% - 15%
Uncorrected tetralogy of Fallot
Marfan’s syndrome with normal aorta
Mechanical prosthetic valve
Mitral stenosis with atrial fibrillation or NYHA Class III, IV
Aortic stenosis
Previous myocardial infarction
III Pulmonary hypertension—primary or secondary 25% - 50%
Coarctation of aorta with valvular involvement
Marfan’s syndrome with aortic involvement
Peripartum cardiomyopathy
*Uncomplicated
Table 3.NEW YORK HEART ASSOCIATION FUNCTIONAL CLASSIFICATION OF CARDIAC DISEASE
CLASS I No functional limitation of activity.
No symptoms of cardiac decompensation with activity.
CLASS II Mild amount of functional limitation.
Patients are asymptomatic at rest. Ordinary physical activity results in symptoms.
CLASS III Limitation of most physical activity.
Asymptomatic at rest
Minimal physical activity results in symptoms.
CLASS IV Severe limitation of physical activity results in symptoms.
Patients may be symptomatic at rest/heart failure
at any point of pregnancy.
CLASS V If patient is on ionotropic support, ventilator, Assisted circulation or having comprised renal or pulmonary function necessitating dialysis/EMCO to
maintain vital signs.
The criteria committee of the New York Heart Association, Nomenclature and criteria for diagnosis of diseases of heart and great vessels, Edi 8, New York Association,1979.
Antepartum Care
Antepartum care
affected women with ventricular dysfunction,
trimester may be advisable for some.
Antepartum care
Table 4. Recommended antibiotic prophylaxis for high-risk women undergoing genitourinary or gastrointestinal procedures | |
Category | Drug and dosage |
| |
High-risk patient | Ampicillin, 2 g IM or IV,� plus �gentamicin sulfate (Garamycin), 1.5 mg/kg IV 30 min before procedure; ampicillin, 1 g IV, or amoxicillin (Amoxil, Trimox, Wymox), 1 g PO 6 hr after procedure |
| |
High-risk patient who has penicillin allergy | Vancomycin HCl (Vancocin, Vancoled), 1 g IV over 2 hr,� plus�gentamicin sulfate, 1.5 mg/kg IV 30 min before procedure |
| |
Antepartum care
Beta-blockers rather than digoxin should be used to control heart rate for patients with functionally significant mitral stenosis.
Empiric therapy with beta-blockers is offered
to patients with coarctation, Marfan syndrome,
and ascending aortopathy for other reasons (eg, a bicuspid aortic valve).
Arrhythmias should be treated if warranted
Premature atrial or ventricular beats are common in normal pregnancy, and in patients with preexisting arrhythmias,
Pregnancy may exacerbate their frequency and hemodynamic severity.
These usually are not treated.
Antepartum care
Sustained tachyarrhythmias, such as
atrial flutter or atrial fibrillation, should be
treated promptly.
If possible, all antiarrhythmic drugs should
be avoided during the first trimester, and those
known to be teratogenic should be avoided
throughout pregnancy.
Because of their safety profiles, preferred drugs include digoxin, beta-blockers and adenosine.
Cardiovascular diseases in pregnant females. Atrial septal defect
Cardiovascular diseases in pregnant females. Ventricular septal defect
Cardiovascular diseases in pregnant females. �Mitral stenosis
Cardiovascular diseases in pregnant females. �Mitral regurgitation
Aortic stenosis
Antepartum care
strategy is equally safe for both mother and fetus.
Anticoagulation therapy
Oral therapy with warfarin is effective and
logistically easy.
However, it can affect embryonic organ development, although some evidence shows that a dosage of 5 mg per day may not be teratogenic.
Fetal intracranial bleeding is a risk throughout pregnancy, particularly during vaginal delivery, unless warfarin is stopped before labor.
Anticoagulation therapy
* Heparin in adjusted subcutaneous doses
does not cross the placenta and so has no teratogenic effects.
However, it may cause maternal thrombocytopenia and osteoporosis and is less effective in preventing thrombosis in patients with prosthetic valves.
Anticoagulation therapy
More recent guidelines recommend either
(1) adjusted-dose heparin during the entire pregnancy or
(2) adjusted-dose heparin until the 13th week of gestation,
warfarin from the 14th week to the middle of the third
trimester, and then restart adjusted-dose heparin.
* Low-molecular-weight heparin in adjusted
doses is easier to administer and has been
suggested as an alternative to adjusted-dose
unfractionated heparin.
Bates SM, Greer IA, Hirsh J, Ginsberg JS. Use of antithrombotic agents during pregnancy. Chest 2004; 126:627S–644S.
Anticoagulation therapy
At week 36 #
*Discontinue warfarin
*Change to UFH titrated to a therapeutic aPTT or anti-factor Xa level.
At Delivery:
*Restart heparin therapy 4 to 6 hr after delivery if no contraindications
*Resume warfarin therapy the night after delivery if no bleeding complications
#if labor begins while the woman is receiving warfarin, anticoagulation should be reversed and caesarean delivery performed
Ginsberg JS, Greer I, Hirsh J. Use of antithrombotic agents during pregnancy. Chest 2001;119:Suppl:122S-131S
Anticoagulation therapy
Monitoring
1.2 U/ml 4 hours after admn.
Chan WS, Anand S, Ginsberg JS. Anticoagulation of pregnant women with mechanical heart valves: a systematic review of the literature. Arch Intern Med 2000;160:191-196
Peripartum management
following conditions:
Peripartum care
Preterm induction is uncommon.
However, once fetal lung maturity is assured, a planned induction and delivery may be warranted for high-risk patients to ensure that appropriate staff and equipment are available.
Peripartum care
Antibiotic prophylaxis for endocarditis is
not routine. AHA guidelines do not recommend routine endocarditis prophylaxis for cesarean section delivery or for uncomplicated vaginal delivery without infection.37
However, some centers do administer
endocarditis prophylaxis for vaginal delivery
in women with structural heart disease, as an
uncomplicated delivery cannot always be
anticipated.
Peripartum care
Positioning the patient on her left side
lessens the hemodynamic fluctuations associated with contractions when the patient is supine.
Peripartum care
considered at the end of the second stage of labor to shorten and ease delivery.
Peripartum care
�Because hemodynamics do not return to baseline for many days after delivery, patients at intermediate or high risk may require monitoring for at least 72 hours postpartum.
Peripartum care
Contraception
Deans CL, Uebing A, Steer PJ. Cardiac disease in pregnancy. In Progress in Obstetrics and Gynaecology, Vol 17, Edi Studd J, Tan S L, Chervenak FA.Churchill Livingstone 2007, 164-182.
Conclusion
Pregnancy causes significant haemodynamic changes and imposes an additional burden on the cardiac patient, especially around the time of labour and in the immediate puerperium.
To achieve a successful pregnancy outcome, a clear understanding of these haemodynamic adaptations as well as meticulous maternal and foetal surveillance for risk factors and complications throughout the pregnancy is essential.
Conclusion
Appropriate contraceptive and family planning advice as well as pre-conceptional counselling are also important.
The concerted efforts of a team consisting of the
obstetrician, cardiologist, anaesthetist, cardiothoracic surgeon, neonatologist, and paediatric cardiologist are mandatory to ensure optimal results.
DIABETES MELLITUS IN PREGNANCY
Effects of pregnancy on diabetes and of diabetes on pregnancy are complex and profound. The severity of diabetes will greatly influence perinatal outcome. The incidence of diabetes in pregnancy is about 10%. Diabetes in pregnant women is generally categorized as either gestational or pregestational diabetes. Gestational diabetes firstly appears after 28 weeks of pregnancy and means transient impairment of glucose utilization during pregnancy.
Varieties of diabetic trait during pregnancy:
1. Potential. Potential diabetic is one with normal glucose tolerance test but who has got: positive family history diabetes or previous birth of an overweight baby.
2. Latent. The individual has got normal glucose tolerance in non-pregnant condition. But in conditions of stress there is impairment of glucose tolerance which becomes normal when the stress is removed.
3. Subclinical. There is a persistent abnormal glucose tolerance test even without stress. Symptoms of diabetes have not appeared yet.
4. Prediabetic condition. The features of the state are history of previous delivery of overweight baby (more than 4 kg), unexplained perinatal death with hypertrophy of the pancreas on autopsy and diabetes in the family.
5. Overt or clinical diabetes. A patient with abnormal glucose tolerance test with or without symptoms and a raised fasting blood - glucose level is called overt diabetes. The condition may be pre-existing or detected for the first time during present pregnancy.
CLASSIFICATION OF DIABETES
�A. Clinical forms of diabetes.
B. The degrees of diabetes.
C. Dependence on compensation.
Diabetes mellitus. Risk factors of the development gestational diabetes mellitus
Diabetes mellitus.
Pregnant females with the factors of risk must thoroughly be inspected within the early periods, with the normal test of tolerance to the glucose it must be repeated in 30 weeks. Diabetic type of sugar curved for the pregnant females according to the data WHO (World Health Organization) on an empty stomach - 7 mmole/l, in the hour (100 g of glucose) - 11,1 mmole/l, after 2 hours - 7,8 mmole/l and glucosuria.
With conducting of pregnancy and childbirths should be considered the following moments: diabetes compensation, the maximum compensation for metabolic disturbances, timely diagnostics and the therapy of microcirculatory disturbances, fetal monitoring, the preventive maintenance of septic diseases, the selection of optimum period and method of delivery, postpartum rehabilitation.
Diabetes mellitus. Contraindications to the pregnancy
Diabetes mellitus
Hospitalization is achieved with the first rotation or within the periods of the establishment of the gestational diabetes (correction of the dose of insulin, the study of the state of kidneys, sight, heart, resolution of a question about the prolongation of pregnancy); 20-24 weeks (refinement of state FPS, the exception of the anomalies of the development of fetus, diagnostics of preeclampsia); 32-34 weeks (preparation for the labor, the selection of their technology)
The need for insulin is reduced to 30% in first half of pregnancy, from 16-20 weeks grows by 50-100% (making more active of the function of the placenta, the adrenal glands and hypophysis), tendency toward ketoacidosis and hyperglycemic states, 38-40 weeks - again are reduced the need for insulin, after delivery - sharply it is lowered, reaching original values to 5-7 days.
Diabetes mellitus
The period of labor is determined taking into account gravity of the course of basic disease, the degree of its compensation, by the state of fetus, by the presence of obstetrical complications. Optimum natural lobour with the monitoring of the content of glucose every 2-3 hours and by adequate insulin therapy by the preparations of quick action. Planned cesarean section is produced taking into account additional obstetrical indications.
Gestational Diabetes Mellitus
Gestational diabetes mellitus is diagnosed on the basis of 2 or more abnormal values on a 3-hour glucose tolerance test. Gestational diabetes is common, occurring in up to 5% of pregnancies. The main risk factor of gestational diabetes in pregnancy is fetal macrosomia with potential injury to fetus and mother at the time of delivery. Women with gestational diabetes have a high risk (up to 50%) of developing overt diabetes later in life.
Gestational Diabetes Mellitus
Management of gestational diabetes is usually achieved with diet alone, but some women require insulin therapy. Professional nutritional guidance is recommended to maintain normoglycemia. Women whose blood glucose levels are consistently high despite diet therapy require insulin treatment. Unfortunately, many of these women are obese and insulin resistant, and normoglycemia may he difficult to achieve. Diagnosis and initiation of therapy before 30 weeks gestation is necessary to avoid the hard of macrosomia.
Insulin-Dependent Diabetes Mellitus
Obstetric complications seen in diabetic women are multiple. A high rate of spontaneous abortion and fetal anomalies (cardiac, neurological, and renal abnormalities and caudal regression syndrome) occur in diabetics with poor glucose control .
The risk of hydramnios in the diabetic patient is double that of the nondiabetic patient, as is the risk of preterm labor. Women with diabetes are twice as likely to develop pregnancy-induced hypertension.
As in gestalional diabetes, the woman with insulin-dependent diabetes mellitus and no vascular disease carries a fetus at risk to develop macrosomia.
Insulin-Dependent Diabetes Mellitus
Pyelonephritis in pregnancy
Pyelonephritis in pregnancy. Symptoms
EFFECTS OF PYELONEPHRITIS ON PREGNANCY
EFFECTS OF GESTATION ON PYELONEPHRITIS
MANAGEMENT OF PYELONEPHRITIS IN PREGNANCY
Special groups of high risk are distinguished for pregnant with pyelonephritis:
Pyelonefritis in pregnancy
There are three dates of prophilactic hospitalizations during pregnancy for the patients with chronic pyelonephritis.
The 1st is - prior to the 10 week of pregnancy — to examine the general condition, the condition of the renal system and be sure that pregnancy can be allowed. The treatment is: antibiotic therapy (penicillin 10,000,000 units daily intramuscularly, or ampicillin 500 mg four times a day,
The second prophilactic hospitalization should be done in term from 20-22 weeks of gestation to treat a patient for prevention of pyelonephritis.
The treatment is: antibiotic therapy Nevigramon, negram should be administered in doses 2 capsules 4 times a day during 10 days. Furagin may be admmistered by O.lg 4 times a day during 4 days, and then by 0|.2g 3 times a day during 10 days. Diet with less salt and water should be administered. Bed rest is administered in cases of elevated temperature.
The third hospitalization should be done in the third trimester of pregnancy, in term from 34-36 weeks of pregnancy, for general examination, decision of the way of delivering and preparation for delivering. Antibiotics may be used under the indications, treatment of fetal hypoxia.
The natural ways of labor is the best for the patients with pyelonephritis. During postpartum period any infections may appear, so antibiotic therapy is indicated.
ANEMIA IN PREGNANCY
ANEMIA IN PREGNANCY CLASSIFICATION
ANEMIA IN PREGNANCY
ANEMIA IN PREGNANCY
ANEMIA IN PREGNANCY
Iron deficiency anemia is also classified depending on degree of deficiency.
CLINICAL FEATURES OF IRON DEFICIENCY ANEMIA
The clinical features depend on degree of iron deficiency. The symptoms are: general fatigue and lassitude, breathlessness on exertion, dizziness, giddiness, headache, insomnia. Pallor of skin and mucous membrane corresponds to the degree of anemia. Patients with significant degrees may have tachycardia. Anorexia and dyspepsia may be too. In severe cases there may be edema of the skin of the ankles and crepitation, at the bases of the lungs. There may be glossitis, stomatitis and dysphagia.
ANEMIA IN PREGNANCY. MANAGEMENT
Routine antenatal check up with blood examination at the 10th week is carried out. Finding of the 3 degree of anemia in early stages of pregnancy may be an indication for medical abortion. In other cases the examination of blood must be done regularly, and the treatment must be prescribed to prevent progressive worsening.
Complications during pregnancy in patients with anemia are: fetal hypoxia and hypotrophya , prematurity, preeclampsia, abruptio placenta intercurrent infection.
Complications during the labor are: anomalies of labor pains (more often weak labor pains), hemorrhages in the 2nd and 3rd stages of labor.
After delivering puerperal septic diseases are common for these patients. The treatment is: supplementary iron therapy
Dietary prescription: balanced diet rich in iron should be prescribed. The foods rich in iron are liver, meat, egg, green vegetables, green peas, beans.
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