Hayley Galitzer
Clinical Assistant Professor, Medicine
Web page: http://web.stanford.edu/people/hayley.galitzer
Academic Appointments
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Clinical Assistant Professor, Medicine
Administrative Appointments
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Chief Resident, Stanford University Internal Medicine Residency Program (2024 - 2025)
Professional Education
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Bachelor of Arts, Columbia University, Columbia College, Psychology (2015)
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Medical Education, NYU Grossman School of Medicine (2021)
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Residency, Stanford University Internal Medicine Residency Program (2024)
All Publications
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High prevalence of laboratory abnormalities indicative of secondary osteoporosis detected by systematic testing.
JBMR plus
2025; 9 (7): ziaf089
Abstract
Osteoporosis treatment guidelines recommend assessment for potential causes of secondary osteoporosis, however, there are limited data evaluating the yield of laboratory tests recommended for routine screening. The purpose of this study was to quantify the frequency of abnormal laboratory results indicative of secondary osteoporosis in patients referred to a Metabolic Bone Clinic with a diagnosis of low bone density or fracture. A retrospective chart review was conducted on 890 consecutive patients at a tertiary academic medical center from October 2018 to December 2021. Upon referral, patients were asked to complete a standardized set of laboratory tests, including comprehensive metabolic panel, 25OHD, PTH, thyroid testing, complete blood count, phosphorus, tissue transglutaminase antibodies, and 24-h urine calcium with creatinine. Among 890 patients, 67% of subjects had at least one laboratory abnormality. The most common abnormalities were of 25OHD and PTH with 22.4% and 19.1% of each test respectively showing abnormal results. Over 99% of serologic testing was completed; however, urine calcium testing was completed in only 34% of subjects. Among individuals who completed 24-h urine calcium testing (n = 304), 26.5% had hypocalciuria (<100 mg/24 h), and 25.2% had hypercalciuria (>250 mg/24 h). Subjects with a Z-score <-2.0 were more likely to have abnormal laboratory results. This study demonstrates that laboratory abnormalities indicating secondary osteoporosis are very common among patients with low bone density and fracture. Systematic laboratory testing with a circumspect number of tests is appropriate in all patients with skeletal fragility.
View details for DOI 10.1093/jbmrpl/ziaf089
View details for PubMedID 40584155
View details for PubMedCentralID PMC12202145
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Training in cognitive reappraisal normalizes whole-brain indices of emotion regulation in borderline personality disorder.
Biological psychiatry. Cognitive neuroscience and neuroimaging
2024
Abstract
Borderline personality disorder is the prototypical disorder of emotion dysregulation. We have previously shown that borderline personality disorder patients are impaired in their capacity to engage cognitive reappraisal, a frequently-employed adaptive emotion regulation strategy.Here we report on the efficacy of longitudinal training in cognitive reappraisal to enhance emotion regulation in borderline patients. Specifically, the training targeted psychological distancing, a reappraisal tactic whereby negative stimuli are viewed dispassionately as though experienced by an objective, impartial observer. At each of 5 sessions over 2 weeks, 22 borderline (14 Female) and 22 healthy control (13 Female) participants received training in psychological distancing and then completed a widely-used picture-based reappraisal task. Self-reported negative affect ratings and functional magnetic resonance imaging (fMRI) data were acquired at the first and fifth sessions. In addition to behavioral analyses, we performed whole-brain pattern expression analyses using independently-defined patterns for negative affect and cognitive reappraisal implementation for each session.Borderline patients showed a decrease in negative affect pattern expression following reappraisal training, reflecting a normalization in neural activity. They did not, however, show significant change in behavioral self-reports.To our knowledge, this study represents the first longitudinal fMRI examination of task-based cognitive reappraisal training. Using a brief, proof-of-concept design, the results suggest a potential role for reappraisal training in the treatment of borderline patients.
View details for DOI 10.1016/j.bpsc.2024.03.007
View details for PubMedID 38641208
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Psychotic symptoms with and without a primary psychotic disorder in children requiring inpatient mental health admission.
European psychiatry : the journal of the Association of European Psychiatrists
2024: 1-31
View details for DOI 10.1192/j.eurpsy.2024.23
View details for PubMedID 38439671
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Crohn Disease Active Inflammation Assessment with Iodine Density from Dual-Energy CT Enterography: Comparison with Histopathologic Analysis.
Radiology
2021; 301 (1): 144-151
Abstract
Background Dual-energy CT enterography (DECTE) has been shown to be useful in characterizing Crohn disease activity compared with clinical markers of inflammation but, to the knowledge of the authors, comparison has not been made with histopathologic specimens. Purpose To compare mucosal iodine density obtained at DECTE from Crohn disease-affected bowel with histopathologic specimens from surgically resected ileocolectomy bowel segments or terminal ileum colonoscopic biopsies in the same patients. Materials and Methods This was a retrospective study. Bowel segments in adults with Crohn disease who underwent DECTE from January 2017 to April 2019 within 90 days of ileocolectomy or colonoscopy were retrospectively evaluated with prototype software allowing the semiautomatic determination of inner hyperdense bowel wall (mucosal) mean iodine density, normalized to the aorta. Mean normalized iodine density and clinical activity indexes (Crohn Disease Activity Index [CDAI] and Harvey-Bradshaw Index [HBI]) were compared with histologic active inflammation grades by using two-tailed t tests. Receiver operating characteristic curves were generated for mean normalized iodine density, CDAI, and HBI to determine sensitivity, specificity, and accuracy. A P value less than .05 was considered to indicate statistical significance. Results The following 16 patients were evaluated (mean age, 41 years ± 14 [standard deviation]): 10 patients (five men, five women; mean age, 41 years ± 15) with 19 surgical resection specimens and six patients with terminal ileum colonoscopic mucosal biopsies (four men, two women; mean age, 43 years ± 14). Mean normalized iodine density was 16.5% ± 5.7 for bowel segments with no active inflammation (n = 8) and 34.7% ± 9.7 for segments with any active inflammation (n = 17; P < .001). A 20% mean normalized iodine density threshold had sensitivity, specificity, and accuracy of 17 of 17 (100%; 95% CI: 80.5, 100), six of eight (75%; 95% CI: 35, 97), and 23 of 25 (92%; 95% CI: 74, 99), respectively, for active inflammation. Clinical indexes were similar for patients with and without active inflammation at histopathologic analysis (CDAI score, 261 vs 251, respectively [P = .77]; HBI score, 7.8 vs 6.4, respectively [P = .36]). Conclusion Iodine density from dual-energy CT enterography may be used as a radiologic marker of Crohn disease activity as correlated with histopathologic analysis. © RSNA, 2021 See also the editorial by Ohliger in this issue.
View details for DOI 10.1148/radiol.2021204405
View details for PubMedID 34342502
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Functional outcomes and patient satisfaction following inpatient treatment for childhood-onset schizophrenia spectrum disorders vs non-psychotic disorders in children in the United Kingdom.
Early intervention in psychiatry
2021; 15 (2): 412-419
Abstract
The aim of this study was to compare clinical characteristics and treatment outcomes between children with Childhood-onset schizophrenia spectrum disorders (COSS) and children with other severe non-psychotic psychiatric conditions (non-COSS), all admitted to a national mental health inpatient children's unit.We conducted a retrospective study of all children discharged from a national children's inpatient unit in the United Kingdom, between 2009 and 2018. We compared functional and treatment outcomes and satisfaction with treatment in COSS with non-COSS in the whole sample and separately for male and female patients.A total of 211 children (55% boys) were included in the sample. The mean age on admission was 129.7 months (10.8 years; age range, 6-12).Twenty cases were diagnosed with COSS (9.5%). In the whole sample, COSS patients had significantly lower Children's Global Assessment Scale (CGAS) scores on admission compared to non-COSS (P = .006). There was a trend towards children with COSS as a group having a longer admission (M = 194.6 days, SD = 125.4) compared to non-COSS (M = 135.8 days, SD = 86.2), (P = .053). Females with COSS seemed to have more significant differences compared to females with non-COSS, in particular, longer admissions (P = .016) and worse CGAS scores at discharge (P = .04), whilst in males, these differences seemed to be attenuated.Children with COSS have lower functioning at the point of inpatient admission and possibly longer admissions, but similar satisfaction with treatment at discharge from hospital compared with non-COSS. Females with COSS may have worse functional outcomes compared to non-COSS at discharge.
View details for DOI 10.1111/eip.12973
View details for PubMedID 32431095
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Comorbidity and clinical factors associated with COVID-19 critical illness and mortality at a large public hospital in New York City in the early phase of the pandemic (March-April 2020).
PloS one
2020; 15 (11): e0242760
Abstract
Despite evidence of socio-demographic disparities in outcomes of COVID-19, little is known about characteristics and clinical outcomes of patients admitted to public hospitals during the COVID-19 outbreak.To assess demographics, comorbid conditions, and clinical factors associated with critical illness and mortality among patients diagnosed with COVID-19 at a public hospital in New York City (NYC) during the first month of the COVID-19 outbreak.Retrospective chart review of patients diagnosed with COVID-19 admitted to NYC Health + Hospitals / Bellevue Hospital from March 9th to April 8th, 2020.A total of 337 patients were diagnosed with COVID-19 during the study period. Primary analyses were conducted among those requiring supplemental oxygen (n = 270); half of these patients (135) were admitted to the intensive care unit (ICU). A majority were male (67.4%) and the median age was 58 years. Approximately one-third (32.6%) of hypoxic patients managed outside the ICU required non-rebreather or non-invasive ventilation. Requirement of renal replacement therapy occurred in 42.3% of ICU patients without baseline end-stage renal disease. Overall, 30-day mortality among hypoxic patients was 28.9% (53.3% in the ICU, 4.4% outside the ICU). In adjusted analyses, risk factors associated with mortality included dementia (adjusted risk ratio (aRR) 2.11 95%CI 1.50-2.96), age 65 or older (aRR 1.97, 95%CI 1.31-2.95), obesity (aRR 1.37, 95%CI 1.07-1.74), and male sex (aRR 1.32, 95%CI 1.04-1.70).COVID-19 demonstrated severe morbidity and mortality in critically ill patients. Modifications in care delivery outside the ICU allowed the hospital to effectively care for a surge of critically ill and severely hypoxic patients.
View details for DOI 10.1371/journal.pone.0242760
View details for PubMedID 33227019
View details for PubMedCentralID PMC7682848
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Sensitization of the Neural Salience Network to Repeated Emotional Stimuli Following Initial Habituation in Patients With Borderline Personality Disorder.
The American journal of psychiatry
2018; 175 (7): 657-664
Abstract
Borderline personality disorder is the prototypical disorder of emotion reactivity and dysregulation, yet there remains limited understanding of its neurocognitive correlates. Two mechanisms that may underlie anomalous reactivity in response to negative stimuli among patients with borderline personality disorder are impairment in habituation and exaggerated sensitization of activity in the neural salience network, including the amygdala, anterior insula, and dorsal anterior cingulate cortex. The authors aimed to reveal the most plausible mechanism by examining the effect of repeated exposure to emotional images both within and across study sessions.A total of 75 participants (patients with borderline personality disorder, N=26; patients with avoidant personality disorder included as a psychopathological control group, N=25; and healthy control subjects, N=24) were included in the study analyses. All participants viewed five presentations of the same set of negative and neutral images at each of two sessions, separated by approximately 3 days, while functional MRI data were acquired. Salience network activity, as measured by blood-oxygen-level-dependent signal in anatomically defined regions of interest across the salience network, was compared across the three groups for each presentation at each of the two study sessions. Self-reported negative affect was measured for each trial.Salience network activity showed a main effect of within-session habituation across all groups and sessions. However, a group-by-session interaction was present, such that only patients with borderline personality disorder showed increased salience network activity in response to the images reencountered at the second session, and this increased salience network sensitization predicted greater sensitization in self-reported negative affect.These results elucidate the neural mechanisms by which patients with borderline personality disorder appraise negative social situations as exaggeratedly salient and suggest potential neurocognitive intervention targets.
View details for DOI 10.1176/appi.ajp.2018.17030367
View details for PubMedID 29961363
View details for PubMedCentralID PMC6032521