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To validate the discharge diagnoses of venous thromboembolism during pregnancy and postpartum, we examined the positive predictive value (PPV) of venous thromboembolic (VTE) discharge diagnoses associated with pregnancy or puerperium based on 311 cases registered in a Danish population-based hospital-discharge registry. Medical records and hospital discharge summaries were retrieved and reviewed using a standardized form. Standard and pregnancy-specific codes were used for 147 (49%) and 153 (51%) cases, respectively. The overall PPV of the selected codes was 87.3% (95% confidence interval [CI]: 83.0–90.9). When focusing on confirmed VTE events in relation to the pregnancy, the overall PPV was 79.3% (95% CI: 74.3–83.8). The overall PPVs of pregnancy-related VTE diagnoses were moderate to high. The predictive values varied substantially between the individual codes, however, and not all the registered VTE events occurred in relation to pregnancy. Thus, use of unvalidated registry-based pregnancy-related VTE diagnoses for epidemiological research may lead to biased results.

The purpose of this study was to assess medical residents' knowledge of symptom criteria and subtypes of major depressive episode and their accuracy in diagnosing major depressive disorders and classifying episode severity and subtype according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. Thirty-five third-year internal medicine residents completed a self-administered, written instrument containing 2 open-ended questions and 21 hypothetical scenarios. The sensitivity for recognizing major depressive disorder was 64%, and the specificity was 69%. The sensitivity for classifying severity was 86% for mild, 66% for moderate, 71% for severe, and 66% for severe with psychosis. Misclassification of severity was most commonly to a less severe class. For scenarios with a diagnosable subtype of a major depressive disorder, the sensitivity for classification was 34% for atypical, 51% for catatonic, 74% for melancholic, 100% for postpartum, and 94% for seasonal depression. When asked to enumerate the criteria symptoms for depression, 80% or more of the residents listed sad mood, loss of interest, weight change, and sleep disturbances; 14 to 21 (40%-60%) listed thoughts of death and worthlessness; other criteria were listed by 7 to 11 (20%-31%). When asked to list the episode subtypes, none was listed by more than 3 (9%) residents, although 13 (37%) residents volunteered psychotic as a subtype. Residents frequently failed to recognize the presence or absence of major depressive disorder and often misclassified episode severity and subtype on scenarios. Few could spontaneously list the episode subtypes. Methods must be developed to improve the recognition and classification of major depressive episodes to better direct treatment. Images

The paper demonstrates that the nosological classification of psychoses associated with pregnancy, menstruation, etc., under conditions of approximately equivalent description of syndromes, has been treated quite variously, according to the prevalent attitude, in the last hundred years. The concept of puerperal psychosis has been used to denote a psychopathological syndrome connected with pregnancy, birth, and confinement. After a relapse, nosological classification is possible.

Data collected by a single observer on 147 schizophrenic patients were subjected to clustering analysis. The results produced the hypothesis that schizophrenic illnesses directly after childbirth are a separate disease entity. This hypothesis was not disproved by experimental testing. Several disease entities may be included in the term schizophrenia. If this is so, the methods used in generating and testing the hypothesis that puerperal schizophrenia is a separate disease may provide a systematic method of classifying the various illnesses.

Postpartum psychosis (PP) is a severe psychiatric disorder, with incomplete consensus on definition and diagnostic criteria. The Massachusetts General Hospital Postpartum Psychosis Project (MGHP3) was established to better ascertain the phenomenology of PP in a large cohort of diverse women spanning a wide geographical range (primarily in the US), including time of onset, symptom patterns, and associated comorbidities, psychiatric diagnoses pre- and post- the episode of PP, and also to identify genomic and clinical predictors of PP. This report describes the methods of MGHP3 and provides a status update. Data are collected from women who experienced PP within 6 months of childbirth and who provided this information within ten years of the study interview. Subject data are gathered during a one-time structured clinical interview conducted by phone, which includes administration of the Mini International Neuropsychiatric Interview for Psychotic Disorders Studies (Version 7.0.2), the MGHP3© Questionnaire, and other information including lifetime mental health history and use of psychiatric medications both prior to the episode of PP and during the subsequent time period prior to study interview. Subjects also provide a saliva sample to be processed for genomic analyses; a neuroimaging assessment is also conducted for a subset of participants. As of July 1, 2022, 311 subjects from 44 states and 7 countries were enrolled in MGHP3. Recruitment sources include social media, online advertisements, physician referral, community outreach, and partnership with PP advocacy groups. The rigorous phenotyping, genetic sampling, and neuroimaging studies in this sample of women with histories of PP will contribute to better understanding of this serious illness. Findings from MGHP3 can catalyze ongoing discussions in the field regarding proper nosologic classification of PP as well as relevant treatment implications.

This article summarizes the current understanding of the mechanisms of destruction in autoimmune thyroid disease. The authors explain the approach to the diagnosis and treatment of the most common types of thyroiditis, including Hashimoto's thyroiditis, painless postpartum thyroiditis, and painless sporadic thyroiditis. Thyroid dysfunction can also develop from treatment with medications such as amiodarone, lithium, interferon alfa, and interleukin-2. The term thyroiditis encompasses many relatively common thyroid disorders, which have been classified according to various schemes (Table 1). In this article we review the diagnosis and treatment of the different types of thyroiditis. Mechanisms of Autoimmune Thyroid Destruction Thyroid Autoimmunity Hashimoto's thyroiditis, painless sporadic thyroiditis, and painless postpartum thyroiditis all have an autoimmune basis (Table 2). In Hashimoto's thyroiditis, the antithyroid immune response begins with activation of thyroid antigen–specific helper T cells. According to one theory, this activation results from infection with a virus that has a protein similar to a thyroid protein, although clear evidence for a viral . . .

Women of childbearing age experience an increased breast cancer risk associated with a completed pregnancy. For younger women, this increase in breast cancer risk is transient and within a decade after parturition a cross over effect results in an ultimate protective benefit. The post-partum peak of increased risk is greater in women with advanced maternal age. Further, their lifetime risk for developing breast cancer remains elevated for many years, with the cross over to protection occurring decades later or not at all. Breast cancers diagnosed during pregnancy and within a number of years post-partum are termed pregnancy-associated or PABC. Contrary to popular belief, PABC is not a rare disease and could affect up to 40,000 women in 2009. The collision between pregnancy and breast cancer puts women in a fear-invoking paradox of their own health, their pregnancy, and the outcomes for both. We propose two distinct subtypes of PABC: breast cancer diagnosed during pregnancy and breast cancer diagnosed post-partum. This distinction is important because emerging epidemiologic data highlights worsened outcomes specific to post-partum cases. We reported that post-partum breast involution may be responsible for the increased metastatic potential of post-partum PABC. Increased awareness and detection, rationally aggressive treatment, and enhanced understanding of the mechanisms are imperative steps toward improving the prognosis for PABC. If we determine the mechanisms by which involution promotes metastasis of PABC, the post-partum period can be a window of opportunity for intervention strategies.