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Obstetric Vasculopathies
Pankaj Desai
CHAPTER 1:
General Aspects of Obstetric Vasculopathies
INTRODUCTION
WHAT ARE OBSTETRIC VASCULOPATHIES
CHAPTER 2:
Cardiovascular Changes in Normal Pregnancy
INTRODUCTION
BLOOD PRESSURE
Animal Studies
Diurnal Variations in BP
LONGITUDINAL CHANGES IN CARDIAC FUNCTIONS
Stroke Volume and Heart Rate
How Does the Heart Increase the Cardiac Output?
Vascular Response to Increase Cardiac Output
Oscillatory Pressure and Propulsive Pressure (Fig. 2.1)
PERIPHERAL VASCULAR RESISTANCE
CHANGES IN VENOUS SYSTEM: ANY?
CHAPTER 3:
Immunology of Obstetric Vasculopathy
INTRODUCTION
LEADS THROUGH RECURRENT SPONTANEOUS ABORTION (RSA)
FETUS AS AN ALLOGRAFT
WHAT PROTECTS THE FETUS?
Small Size
Zona Pellucida
Paralysis of Maternal Protector Systems and Pregnancy
Hypoimmunogenic Embryo
FETUS AS A UNIQUE ALLOGRAFT
SUPPRESSOR MECHANISMS IN PROTECTION
PARTNER SPECIFICITY IN MISCARRIAGES
AUTOIMMUNITY IN RECURRENT PREGNANCY LOSS
Antiphospholipid Antibodies
The Role of a Cofactor
Prevalence of APL
Pathogenesis
Platelets
Disruption of Thromboxane Prostacyclin Mechanism
Protein C Activation
Is there a Crossover between Different APL Antibodies?
EMBRYO DECIDUA CROSSTALK IN IMMUNOLOGY OF OBSTETRICS VASCULOPATHY
IMPLANTATION NOT A RIGHT OF EMBRYO
RESULTS OF THE CROSSTALK
OTHER CONTRIBUTORY MECHANISMS
Defective Generation of Syncitiotrophoblasts
Incompetent GnRH Activity
Privileged Status of Syncitiotrophoblasts
WHAT IS SPONTANEOUS RESOLUTION?
THE MIRACLE OF PARADOX
Leads to Transplant Scientists
Concept of Artificial Syncitiotrophoblasts and Organ Transplants
CHAPTER 4:
Endothelial Cell Dysfunction and Obstetric Vasculopathy
INTRODUCTION
THE PHENOMENON OF ENDOTHELIAL CELL ACTIVATION
ENDOTHELIAL ACTIVATION AND PROSTAGLANDINS
PLASMINOGEN AND ALLIED PROCOAGULANT ACTIVITY—A MANIFESTATION OF ENDOTHELIAL CELL ACTIVATION
ANTIPHOSPHOLIPID ANTIBODIES ACT THROUGH PROCOAGULANT MECHANISM
ENDOTHELIAL CELL ADHESION MOLECULE DISTURBANCES
COMPONENTS OF FIBRONECTIN
VASCULAR ENDOTHELIAL GROWTH FACTOR (VEGF)
Clinical Bearing
ENDOTHELIN
OTHER MOLECULES CONTRIBUTING TO ENDOTHELIAL CELL ACTIVATION
Immunological Antibodies
Cytokines
Formed Elements in Blood
Toxins
Angiogenic Factors
CHAPTER 5:
Oxidative Stress and Obstetric Vasculopathies
INTRODUCTION
WHAT IS OXIDATIVE STRESS?
OUR BASIC STUDY1
WHAT IS A FREE RADICAL?
OXIDATIVE STRESS AND HEALTH
THE MISCHIEF OF FREE RADICALS IN VASCULAR WALLS
LIPID PEROXIDES: THE AGENTS OF OXIDATIVE STRESS
LIPID METABOLISM IN NORMAL PREGNANCY AND ITS BEARINGS IN ABNORMAL PREGNANCY
Hypertriglyceridemia and Obstetric Vasculopathies
Small Dense LDL Phenotype in Obstetric Vasculopathy
PLACENTAL LIPID PEROXIDATION
Transition Metals in Lipid Peroxidation
CLINICAL MANIFESTATIONS
REPERFUSION
INNATE MATERNAL REDUCING SYSTEMS
THE FAMILY OF FREE RADICALS
VASCULAR ENDOTHELIUM AND OXIDATIVE STRESS
INEFFICIENT SECOND WAVE OF TROPHOBLASTIC INVASION
Generation of VEGF
NITRIC OXIDE IN OBSTETRIC VASCULOPATHY
Problems with Assessment of NO
Nitric Oxide and Endothelial Cells
PLACENTAL ATHEROSIS IN OBSTETRIC VASCULOPATHY
EXTRACELLULAR REDUCING SYSTEMS
Uric Acid: One of the Most Power House Reductant
Riots—Policemen Model to Understand Uric Acid
Limitations of Reducing Systems
Inconsistency of Reducing Systems
The Ideal Reducing System
EXERCISE AND PREVENTION OF OBSTETRIC VASCULOPATHIES
TREATMENT BEARINGS
The Beauty of Lysophosphotidyl Choline
CHAPTER 6:
The Placenta, Trophoblasts and Obstetric Vasculopathies
BASIC PROCESS OF NORMAL PLACENTA AND PLACENTATION
Role of Oxygen Tension in Trophoblastic Invasion
OXYGENATION AND TROPHOBLASTIC DIFFERENTIATION
FAULTS IN FETOMATERNAL LINKAGE AT PLACENTA AND OBSTETRIC VASCULOPATHY
MATERNAL ENVIRONMENT PREVENTING TROPHOBLASTIC INVASION
CHAPTER 7:
The Genetics of Obstetrics Vasculopathies
BASIS FOR REVIEWING THE ROLE OF GENETICS IN OBSTETRIC VASCULOPATHIES
CHALLENGES TO THE GENETIC STUDIES IN OBSTETRIC VASCULOPATHIES
MAMMALIAN STUDIES
APPLICATION OF GENETIC MODELS
EXAMINING ASSOCIATIONS
FETAL CONTRIBUTIONS: ANY?
REVERSE ASSOCIATIONS
IMMUNOLOGY AND GENETICS
INPUTS FROM ANIMAL MODELS
EPIGENETIC FEATURES IN PREECLAMPSIA
Renal System
CHAPTER 8:
Obstetric Vasculopathies and their Effects on Heart
INTRODUCTION
HEMODYNAMICS IN NORMAL PREGNANCY AND DURING OBSTETRIC VASCULOPATHIES
EFFECT OF PREECLAMPSIA ON THE OFFSPRING—ANY?
CHAPTER 9:
Obstetric Vasculopathies and their Effects on the Renal System
VULNERABILITY OF RENAL SYSTEM
SPECIAL FEATURES OF RENAL FAILURE IN OBSTETRIC VASCULOPATHIES
KIDNEY LESIONS
Doubts on Veracity of Pathognomonic Lesions
Gross Changes in the Kidneys
On Microscopy
Preeclampsia—A Renal Pathogenic Model for Understanding other forms of Hypertension
RENAL FUNCTION ALTERATIONS IN PREECLAMPSIA
Renal Handling of Proteins in Preeclampsia
Handling of Urinary Excretion of Proteins in Preeclampsia
Renin-Angiotensin System in Preeclampsia
CHAPTER 10:
Obstetric Vasculopathies and their Effects on the Central Nervous System
THE PRIVILEGED STATUS OF CENTRAL NERVOUS SYSTEM (CNS)
PATHOLOGICAL LESIONS IN PREECLAMPSIA
Brain
PSYCHIATRIC COMPLICATIONS FOLLOWING OBSTETRIC VASCULOPATHIES: ANY CORRELATION?
CHAPTER 11:
Obstetric Vasculopathies and their Effects on Hematological System
INTRODUCTION
ALTERATION IN COAGULATION FACTORS (OTHER THAN PLATELETS) AND PROCOAGULANTS
ALTERATION IN OTHER CELLULAR COMPONENTS OF BLOOD
REVIEW OF COAGULATION ALTERATIONS IN OBSTETRIC VASCULOPATHIES
Platelets in Normal and Preeclamptic Pregnancies
Concept of Competence Alteration (Efficiency) of Platelets
Platelet Activation and Thromboxane A2 Production
CHAPTER 12:
Obstetric Vasculopathies and their Effects on the Liver
INTRODUCTION
PATHOLOGICAL CHANGES IN THE LIVER
LIVER IN HEMOLYSIS ELEVATED LIVER ENZYMES LOW PLATELETS (HELLP) SYNDROME
CHAPTER 13:
Ophthalmic Features in Obstetric Vasculopathy
INTRODUCTION
RETINAL EDEMA
CENTRAL AND PERIPHERAL CAUSE OF VISUAL ALTERATIONS
Visual Alterations of Special Mention—Recurrent and Unilateral
CHAPTER 14:
Vascular Responses in Obstetric Vasculopathy
BLUNTED VASCULAR RESPONSE
PLACENTAL ISCHEMIA
ANIMAL EXPERIMENTS
Dietary Deficiency and Animal Experiments
Quantification of Fetomaternal Interface Vascular Activity
Salient Results Emerging from Animal Experiments
Some Intriguing Observations from Animal Experiments
Preeclampsia: A Price for Two Legged Humans?
Gene Variation and Preeclampsia, One More Intrigue
The Exclusivity of Human Pregnancy
HARD FACTS EMERGING FROM ANIMAL EXPERIMENTS
CHAPTER 15:
Clinical Profile of Obstetric Vasculopathies
INTRODUCTION
HYPERTENSION
What BP is Hypertension?
Concept of Competence of Reducing Systems
PROTEINURIA
EDEMA
OTHER LABORATORY PARAMETERS
Plasma Urea
CHAPTER 16:
Differential Diagnosis of Obstetric Vasculopathies
INTRODUCTION
PREECLAMPSIA AND CHRONIC HYPERTENSION
Is it Terribly Important to Differentiate the Two?
TRANSIENT HYPERTENSION
RENAL DISEASES
HEPATO-HEMATOLOGICAL INVOLVEMENTS
CHAPTER 17:
Predicting Obstetric Vasculopathies
INTRODUCTION
OVERVIEW OF AVAILABLE PREDICTING MEASURES
APPLICATION OF PREDICTING SYSTEMS FOR OTHER USES
THE AMORPHOUS CHARACTERIZATIONS OF PATHOGENESIS AND CLINICAL FEATURES
OVERVIEW OF THE TYPES OF TESTS
NEGATIVE TO POSITIVE PREDICTIVE VALUE
CONDITIONS BASED TESTS
AN IDEAL TEST
CLINICAL TESTS
Midtrimester BP
The Roll-Over Test
Hand-Grip Test
Weight Gain
URINARY TESTS
Microalbuminuria
Urinary Calcium
Kallikrein
HEMATOLOGICAL CELLULAR AND NON-CELLULAR INDICES
Platelets and Platelet Activation
Platelet Count and CD63
Uric Acid
The Police-riot Model to Understand the Role of Uric Acid in Obstetric Vasculopathies
Fibronectin
β-HCG
EPIDEMIOLOGICAL INDICES
COLOR DOPPLER IN OBSTETRIC VASCULOPATHIES: THE GAME CHANGER
The Diastolic Notch
What is the Diastolic Notch?
Review of Indices
CHAPTER 18:
Prevention of Preeclampsia and other Obstetric Vasculopathies
INTRODUCTION
WHAT IS THE DIFFERENCE BETWEEN DISEASE AND DERANGEMENT?
PREVENTING OBSTETRIC VASCULOPATHY IS A CHALLENGE
WHICH SUBJECTS MAY BENEFIT OUT OF PREVENTIVE MEASURES
Nullipara
Abnormal Uterine Artery Doppler
Inconsistent Presence of Diastolic Notch: Any Significance?
Subjects with Obstetric Challenges
MEASURES PREVENT OCCURRENCE OR PREVENT WORSENING
Salt Restriction
Diuretics
Antihypertensives
Calcium Supplementation
Other Trace Elements Like Magnesium and Zinc
Immunoglobulins
PREVENTIVE MEASURES OF OBSTETRIC VASCULOPATHIES
Progesterone in Prevention of Obstetric Vasculopathies
Which Progesterone
How Do Progesterones Possibly Act
What Dose Progesterone
Side Effects of Progesterone
HCG in Prevention of Obstetric Vasculopathies
Hormonal Basis of hCG Administration
Immunological Basis of Using hCG
Antithrombotic Agents (Aspirin with or without Heparin) for Prevention of Obstetric Vasculopathies
Possible Mechanims of Action of Antithrombotic Agents
Bearings of Low Dose Aspirin
The Early Days
Low-Dose Heparin
Antithrombotic Agents: Review of Literature
PREVENTION OF ECLAMPSIA
CHAPTER 19:
Color Doppler in Obstetric Vasculopathies
INTRODUCTION
COLOR DOPPLER IN EARLY PREGNANCY
What is Diastolic Notch?
Inconsistent Notch
Notch Index and Notch Depth Index
Color Doppler Indices in Early Pregnancy: Any Role in Prediction?
THIRD TRIMESTER COLOR DOPPLER IN OBSTETRIC VASCULOPATHIES
Umbilical Artery Flow
Middle Cerebral Artery Flow
Venous Doppler
Limitations of Venous Doppler
Umbilical Venous Flow
Venous Doppler for Deciding the Route of Delivery
COLOR DOPPLER FOR DISCONTINUATION OF ANTITHROMBOTIC AGENTS
Cardiac Doppler in Obstetric Vasculopathies
FETAL AORTIC DOPPLER STUDIES
CHAPTER 20:
Cardiotocography in Obstetric Vasculopathies
INTRODUCTION
PHYSIOLOGY AND CARDIOTOCOGRAPHY
Basal Heart Rate and its Variability
Accelerations in Heart Rate
Decelerations in Heart Rate
Early Decelerations
Late Decelerations
Variable Decelerations
Shouldering
HYPOXIA AND FETAL HEART RATE
Acute Hypoxia
Gradual Hypoxia
Chronic Hypoxia
CARDIOTOCOGRAPHIES IN SUBJECTS WITH APA SYNDROME
COLOR DOPPLER AND CARDIOTOCOGRAPHY CORRELATION
The Two together in Preeclampsia
The Two together in IUGR
CHAPTER 21:
Treatment of Obstetric Vasculopathy: Recurrent Miscarriages
INTRODUCTION
CORTICOSTEROIDS: NOT USED ANY MORE
FOLIC ACID
LOW DOSE ASPIRIN
FAQs on Aspirin
Q. Teratogenicity of Aspirin
Q. Premature Closure of Ductus Arteriosus
Q. How does One Handle Aspirin in Subjects of Recurrent Miscarriages who may Require a Cervical Cerclage? z
HEPARIN
PROGESTERONE IS TREATMENT OF IMMUNOLOGICAL MISCARRIAGES
Difficulties in Interpreting Scientific Data
TREATMENT OF A SUBJECT OF MISCARRIAGE ALWAYS FOR PREVENTION
CHAPTER 22:
Treatment of Obstetric Vasculopathy—Preeclampsia
INTRODUCTION
LIMITATIONS OF BLOOD PRESSURES AS AN INDICATOR OF SEVERITY
EARLY DIAGNOSIS AND ALERT SURVEILLANCE
DO SUBJECTS OF PREECLAMPSIA NEED ADMISSION
MANAGEMENT ON HOSPITALIZATION
ANTIHYPERTENSIVES
Which Antihypertensive
Challenges before any Antihypertensive in Pregnancy Induced Hypertension
Monotherapy Versus Multidrug Therapy
Dosage Schedules
Nifedipine
Atenolol
Labetalol
Alpha Methyldopa
Hydralazine
When to Stop Antihypertensives
INDUCTION OF LABOR IN PREGNANCY INDUCED HYPERTENSION (PIH)
When to Induce Labor in Pregnancy Induced Hypertension (PIH)
37 Weeks
Eclampsia
Severe Pregnancy Induced Hypertension (PIH)
Induction of Labor in Pregnancy < 37 Weeks and no Severe Pregnancy Induced Hypertension (PIH)
The Need for Involving a Neonatologist
METHODS OF INDUCTION OF LABOR
Trachleodynamics in Induction of Labor
Prostaglandins
Dose
System Readiness for Labor Induction in Pregnancy Induced Hypertension (PIH)
Other Methods of Labor Induction
CESAREAN SECTION IN PREGNANCY INDUCED HYPERTENSION (PIH)
POST DELIVERY CARE
Pregnancy Induced Hypertension (PIH)
BP
Coagulation Failure
Renal Failure
Pulmonary Edema
CHAPTER 23:
Treatment of Obstetric Vasculopathy: Accidental Hemorrhage
INTRODUCTION
THE ETIOPATHOLOGY OF ACCIDENTAL HEMORRHAGE
THE CLINICAL EFFECTS OF ACCIDENTAL HEMORRHAGE
Consumptive Coagulopathy
Renal Failure
Fetal Demise
CARDIOTOCOGRAPHY CHANGES IN ACCIDENTAL HEMORRHAGE
ULTRASONOGRAPHY IN ACCIDENTAL HEMORRHAGE
OBSTETRIC MANAGEMENT OF ACCIDENTAL HEMORRHAGE
Why Labor in Accidental Hemorrhage does not Follow the Partogram
CESAREAN SECTION IN ACCIDENTAL HEMORRHAGE
MEDICAL MANAGEMENT
INDEX
TOC
Index
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