Race, insurance status, and tubal sterilization

OBJECTIVE: To examine the independent effects of race or ethnicity and insurance status on use of tubal sterilization rates. METHODS: This study used cross-sectional data collected by the 2002 National Survey of Family Growth. The survey is designed to represent women and men aged 15-44 years in the household population of the United States. Our main outcome measure was tubal sterilization at any time before interview. A multivariable logistic regression model was used to estimate the effects of race or ethnicity and insurance status on rates of tubal sterilization after adjusting for important confounders. RESULTS: The sample consisted of 7,643 women: 66% were white, 15% were Hispanic, and 14% were African American; 68% had private insurance and 32% had public or no insurance. After adjusting for age, insurance status, parity, income, education, marital status, and religion, African-American women were more likely than white women to undergo tubal sterilization (adjusted odds ratio 1.43, 95% confidence interval 1.08-1.88). After adjusting for age, race or ethnicity, parity, income, education, marital status, and religion, women with public or no insurance were more likely to undergo sterilization compared with women with private insurance (adjusted odds ratio 1.38, 95% confidence interval 1.09-1.74). CONCLUSION: African-American women and women with no or public insurance were more likely to have undergone tubal sterilization compared with white women and women with private insurance, respectively. Additional research to identify factors that influence women's decision to undergo sterilization is warranted. LEVEL OF EVIDENCE: II.     

Marked hypocalcemia after tocolytic magnesium sulphate therapy

Symptomatic hypocalcemia has been reported infrequently in association with magnesium sulfate (MgSO (4)) tocolytic therapy. We report a 38-year-old woman who presented in preterm labor at 24 3/7 weeks. Twenty hours after starting MgSO (4), she developed chest pain. Studies revealed therapeutic serum Mg level, total serum calcium (Ca) = 5.5 mg/dL, 24-hour urine Ca = 763.9 mg, and low serum uric acid and phosphate levels. All studies corrected day 1 postpartum; urine Ca level corrected on day 2. Even short courses of MgSO (4) can result in severe hypocalcemia, raising the question of whether Ca levels should be routinely monitored.     

Androgen deficiency and abnormal penile duplex parameters in obese men with erectile dysfunction

IntroductionThe clinical identification of metabolic syndrome is based on measures of abdominal obesity, atherogenic dyslipidemia, elevated blood pressure, and glucose intolerance. However, the impact of hypogonadism associated with obesity on penile hemodynamics is not well investigated.AimIn this retrospective study, we sought to evaluate the effect of obesity on serum total testosterone (TT) level and penile duplex parameters in men with erectile dysfunction (ED).MethodsOur participants (N = 158) were evaluated for erectile function using an abridged, five-item version of the International Index of Erectile Function-5. Determination of body mass index (BMI) was performed. Measurements of TT, fasting lipid profile, and blood sugar were conducted. Penile hemodynamics was assessed using intracavernosal injection and penile duplex study.Main Outcome MeasuresBivariate associations among BMI and serum testosterone, blood pressure, and lipid profile, as well as penile duplex parameters. We compared all clinical, laboratory, and penile duplex parameters between lean men (BMI < 25) and overweight and obese men (BMI ≥ 25).ResultsThe participants' age ranged between 20 and 56 years. A significant negative correlation between BMI and TT was detected (r = −0.431, P = 0.0001). Hypogonadism was identified in 54/158 (34.2%) of men with ED. The incidence of hypogonadism varied from as low as 1/18 (5.6%) in lean men to as high as 18/36 (50%) to 21/35 (60%) in morbid and severe obesity, respectively. Vasculogenic ED was detected in 32/54 (59.3%) men with BMI ≥ 25, compared with 5/18 (27.8%) in lean men (P = 0.029). In order to study the effect of obesity on erectile function, cases with other risk factors were excluded. Of 67 men suffering from ED with no other risk factor(s) apart from obesity, vasculogenic ED was detected in 32/54 (59.3%) men with BMI ≥ 25, compared with 3/13 (23.1%) in lean men (P = 0.029).ConclusionObesity is associated with lower TT and disturbances of penile hemodynamics. It is an independent clinical factor for vasculogenic ED. Zohdy W, Kamal EE, and Ibrahim Y. Androgen deficiency and abnormal penile duplex parameters in obese men with erectile dysfunction. J Sex Med 2007;4:797–808.     

Bayesian inference for multivariate meta‐analysis Box–Cox transformation models for individual patient data with applications to evaluation of cholesterol‐lowering drugs

In this paper, we propose a class of Box–Cox transformation regression models with multidimensional random effects for analyzing multivariate responses for individual patient data in meta‐analysis. Our modeling formulation uses a multivariate normal response meta‐analysis model with multivariate random effects, in which each response is allowed to have its own Box–Cox transformation. Prior distributions are specified for the Box–Cox transformation parameters as well as the regression coefficients in this complex model, and the deviance information criterion is used to select the best transformation model. Because the model is quite complex, we develop a novel Monte Carlo Markov chain sampling scheme to sample from the joint posterior of the parameters. This model is motivated by a very rich dataset comprising 26 clinical trials involving cholesterol‐lowering drugs where the goal is to jointly model the three‐dimensional response consisting of low density lipoprotein cholesterol (LDL‐C), high density lipoprotein cholesterol (HDL‐C), and triglycerides (TG) (LDL‐C, HDL‐C, TG). Because the joint distribution of (LDL‐C, HDL‐C, TG) is not multivariate normal and in fact quite skewed, a Box–Cox transformation is needed to achieve normality. In the clinical literature, these three variables are usually analyzed univariately; however, a multivariate approach would be more appropriate because these variables are correlated with each other. We carry out a detailed analysis of these data by using the proposed methodology. Copyright © 2013 John Wiley & Sons, Ltd.     

Magnetic resonance imaging of a temporal lobe cerebral amyloidoma

Amyloidomas are focal solitary amyloid masses without systemic involvement that have been observed to occur in various body locations. When presenting intracranially, they pose a challenging diagnostic and therapeutic course given their location and rarity. We report a case of a 62-year-old man with a 4-year history of seizure and headaches. Magnetic resonance imaging was initially inconclusive but revealed an ill-defined right temporal lobe lesion. Biopsy later confirmed a cerebral amyloidoma. We also review the current literature on the pathogenesis, imaging findings, prognosis, and treatment of cerebral amyloidomas.     

Increased amygdala and decreased frontolimbic r esting- s tate functional connectivity in children with aggressive behavior

Childhood maladaptive aggression is associated with disrupted functional connectivity within amygdala-prefrontal circuitry. In this study, neural correlates of childhood aggression were probed using the intrinsic connectivity distribution, a voxel-wise metric of global resting-state brain connectivity. This sample included 38 children with aggressive behavior (26 boys, 12 girls) ages 8–16 years and 21 healthy controls (14 boys, 6 girls) matched for age and IQ. Functional MRI data were acquired during resting state, and differential patterns of intrinsic functional connectivity were tested in a priori regions of interest implicated in the pathophysiology of aggressive behavior. Next, correlational analyses tested for associations between functional connectivity and severity of aggression measured by the Reactive-Proactive Aggression Questionnaire in children with aggression. Children with aggressive behavior showed increased global connectivity in the bilateral amygdala relative to controls. Greater severity of aggressive behavior was associated with decreasing global connectivity in the dorsal anterior cingulate and ventromedial prefrontal cortex. Follow-up seed analysis revealed that aggression was also positively correlated with left amygdala connectivity with the dorsal anterior cingulate, ventromedial and dorsolateral prefrontal cortical regions. These results highlight the potential role of connectivity of the amygdala and medial prefrontal and anterior cingulate cortices in modulating the severity of aggressive behavior in treatment-seeking children.     

Lymphangiogenesis requires Ang2/Tie/PI3K signaling for VEGFR3 cell-surface expression

Vascular endothelial growth factor C (VEGF-C) induces lymphangiogenesis via VEGF receptor 3 (VEGFR3), which is encoded by the most frequently mutated gene in human primary lymphedema. Angiopoietins (Angs) and their Tie receptors regulate lymphatic vessel development, and mutations of the ANGPT2 gene were recently found in human primary lymphedema. However, the mechanistic basis of Ang2 activity in lymphangiogenesis is not fully understood. Here, we used gene deletion, blocking Abs, transgene induction, and gene transfer to study how Ang2, its Tie2 receptor, and Tie1 regulate lymphatic vessels. We discovered that VEGF-C–induced Ang2 secretion from lymphatic endothelial cells (LECs) was involved in full Akt activation downstream of phosphoinositide 3 kinase (PI3K). Neonatal deletion of genes encoding the Tie receptors or Ang2 in LECs, or administration of an Ang2-blocking Ab decreased VEGFR3 presentation on LECs and inhibited lymphangiogenesis. A similar effect was observed in LECs upon deletion of the PI3K catalytic p110α subunit or with small-molecule inhibition of a constitutively active PI3K located downstream of Ang2. Deletion of Tie receptors or blockade of Ang2 decreased VEGF-C–induced lymphangiogenesis also in adult mice. Our results reveal an important crosstalk between the VEGF-C and Ang signaling pathways and suggest new avenues for therapeutic manipulation of lymphangiogenesis by targeting Ang2/Tie/PI3K signaling.     

The role of electronic medical records in improving health care quality: A quasi-experimental study

The Teleprimary Care—Oral Health Clinical Information System (TPC-OHCIS) is an updated electronic medical record (EMR) that has been applied in Malaysian primary healthcare. Recognizing the level of patient satisfaction following EMR implementation is crucial for assessing the performance of health care services. Hence, the main objective of this study was to compare the level of patient satisfaction between EMR-based clinics and paper-based clinics.The study was a quasi-experimental design that used a control group and was conducted among patients in 14 public primary healthcare facilities in the Seremban district of Malaysia from May 10, to June 30, 2021. Patient satisfaction was assessed using the validated Short-Form Patient Satisfaction Questionnaire, which consisted of 7 subscales. All data were analyzed using the IBM Statistical Package for Social Sciences version 21.A total of 321 patients consented to participate in this study, and 48.9% of them were from EMR clinics. The mean score for the communication subscale was the highest at 4.08 and 3.96 at EMR-adopted clinics and paper-based record clinics. There were significant differences in general satisfaction and communication subscales, with higher patient satisfaction found in clinics using EMR.With the utilization of EMR, patient satisfaction and communication in delivering healthcare services have improved.