Lauren Jane Klein

Dr. Lauren Jane Klein

orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 January 2022 in JPGN Reports
Verified
Journal Article
Open access
LKLauren Jane Klein
Lauren Jane Klein
KBKatherine Black
Katherine Black
MDMichael Dole
Michael Dole
DODanielle K. Orsagh‐Yentis
Danielle K. Orsagh‐Yentis
Objectives: The coronavirus disease (COVID) 2019 pandemic and resultant stay‐at‐home orders altered caregivers’ responsibilities and children's daily environments. We aimed to compare the epidemiology and morbidity of foreign body ingestions (FBIs) during the COVID pandemic and the prior year.Methods: We performed a retrospective review of children cared for at our tertiary care children's hospital for FBI from March to July 2019 (pre‐COVID) and March to July 2020 (COVID). Cases were identified via a search of all diagnoses of foreign bodies (FBs) in the alimentary tract. Charts were reviewed to determine the types of FBs ingested and the patients’ clinical courses.Results: A total of 71 encounters were identified. Thirty ingestions occurred in the pre‐COVID cohort and 42 in the COVID cohort. One patient ingested 2 different FBs. There was a significantly higher rate of FBIs per day in May 2020 (COVID) compared with May 2019 (pre‐COVID; 0.387 versus 0.161; P = 0.046). The median age at presentation was not significantly different between the two groups (pre‐COVID, 63.8 months; COVID, 62.5 months; P = 0.78). FBs were located in the esophagus less frequently in the COVID cohort than in the pre‐COVID cohort (P < 0.01). Endoscopies were less frequently performed in the COVID cohort (52.4% versus 70.0%; odds ratio, 0.47; 95% CI, 0.15–1.40).Conclusions: The frequency of FBIs trended higher in the COVID cohort, with significantly more FBIs in May 2020 when compared with May 2019. Patients in the COVID cohort more frequently had FBs located beyond the esophagus, indicating later presentation and a lesser need for urgent endoscopic removal.

11 October 2023 in Blood Advances
Verified
Journal Article
Open access
PDF file
SAShehu U. Abdullahi
Shehu U. Abdullahi
SGSafiya Gambo
Safiya Gambo
HMHassan Adam Murtala
Hassan Adam Murtala
HKHalima Kabir
Halima Kabir
KSKhadija A. Shamsu
Khadija A. Shamsu
LKLauren Jane Klein
Lauren Jane Klein
Children with sickle cell anemia (SCA) living in Nigeria are at an increased risk of malnutrition, which contributes to increased morbidity and mortality. However, evidence-based guidelines for managing malnutrition in children with SCA are lacking. To address this gap, we conducted a multicenter, randomized controlled feasibility trial to assess the feasibility and safety of treating children with SCA aged from 5 to 12 years and having uncomplicated severe acute malnutrition (body mass index z score of <−3.0). Children with SCA and uncomplicated severe acute malnutrition were randomly allocated to receive supplemental ready-to-use therapeutic food (RUTF) with or without moderate-dose hydroxyurea therapy (20 mg/kg per day). Over a 6-month enrollment period, 3190 children aged from 5 to 12 years with SCA were evaluated for eligibility, and 110 of 111 children who were eligible were enrolled. During the 12-week trial, no participants withdrew or missed visits. One participant died of unrelated causes. Adherence was high for hydroxyurea (94%, based on pill counts) and RUTF (100%, based on the number of empty sachets returned). No refeeding syndrome event or hydroxyurea-related myelosuppression occurred. At the end of the trial, the mean change in body mass index z score was 0.49 (standard deviation = 0.53), and 39% of participants improved their body mass index z score to ≥−3.0. Our findings demonstrate the feasibility, safety, and potential of outpatient treatment for uncomplicated severe acute malnutrition in children with SCA aged from 5 to 12 years in a low-resource setting. However, RUTF sharing with household and community members potentially confounded the response to malnutrition treatment. This trial was registered at clinicaltrials.gov as #NCT03634488

Verified
Journal Article
Open access
PDF file
AAAisha Amal Galadanci Akilu
Aisha Amal Galadanci Akilu
UIUmma Abdulsalam Ibrahim
Umma Abdulsalam Ibrahim
YCYvonne Carroll
Yvonne Carroll
YJYusuf Danasabe Jobbi
Yusuf Danasabe Jobbi
ZFZubaida L. Farouk
Zubaida L. Farouk
MDMichael DeBaun
Michael DeBaun
Newborn screening for sickle cell disease (SCD) is sparse in sub-Saharan Africa. The leadership of the Aminu Kano Teaching Hospital (AKTH) in Kano, Nigeria, with the support of local religious authorities, established a groundbreaking SCD newborn screening program that has become the standard of care for pregnant women and their newborns. Our program includes (1) prenatal genetic counseling for all pregnant women in the antenatal clinic, (2) newborn screening, (3) postnatal genetic counseling for parents of newborns diagnosed with SCD and SCT, and (4) referral of newborns with SCD for follow-up in the SCD Comprehensive Care Clinic by 3 months of age. From September 2020 to December 2023, the team screened 7530 infants for SCD at the AKTH, identifying 126 (1.7%) infants with SCD and 1546 (20.5%) with SCT. Of these, 93 (73.8%) newborns with SCD received individualized genetic counseling, and 43 (46%) were referred to the SCD Comprehensive Care Clinic before 3 months. Group genetic counseling was provided to the parents of 778 (50.3%) of newborns identified with SCT. The SCD newborn screening at the AKTH is now standard care, indicating the viability of sustaining an SCD newborn screening program that provides pre- and postnatal genetic counseling and comprehensive SCD care within a low-income setting.

25 May 2023 in Blood Advances
Verified
Journal Article
Open access
PDF file
LKLauren Jane Klein
Lauren Jane Klein
SAShehu Umar Abdullahi
Shehu Umar Abdullahi
SGSafiya Gambo
Safiya Gambo
VSVirginia Stallings
Virginia Stallings
SASari Acra
Sari Acra
MDMichael DeBaun
Michael DeBaun
Undernutrition is a risk factor for under-5 mortality and is also postulated to be a risk factor for mortality in older children and adults with sickle cell anemia (SCA). We tested the hypothesis that underweight is associated with mortality in children aged 5 to 12 years with SCA. We performed a secondary analysis of participants in the Primary Prevention of Stroke in Children with Sickle Cell Disease in Nigeria trial, a double-blind, parallel-group randomized controlled trial for low-dose or moderate-dose hydroxyurea in children with abnormal transcranial Doppler velocities and a comparison group of participants with nonelevated transcranial Doppler velocities in northern Nigeria. Nutritional status was classified as underweight (weight-for-age z score), stunting (height-for-age z score), and wasting (body mass index z score) using the World Health Organization growth reference. The mean weight-for-age z score was lower in children who died during the study than in those who survived. Otherwise, the baseline characteristics of children who died during the study were not significantly different from those of the children who survived. A pooled analysis of participants demonstrated that a lower weight-for-age z score was associated with an increased hazard of death. Underweight participants (weight-for-age z score <−1) had a greater probability of death during follow-up than those who were not underweight. Underweight status in school-aged children with SCA is a previously unrecognized risk factor for early mortality in Nigeria and can be easily applied to screen children at risk for death. This trial was registered at www.clinicaltrials.gov as #NCT02560935.

16 November 2023 in Blood Advances
Verified
Journal Article
Open access
PDF file
LKLauren Jane Klein
Lauren Jane Klein
SAShehu Umar Abdullahi
Shehu Umar Abdullahi
SGSafiya Gambo
Safiya Gambo
VSVirginia Stallings
Virginia Stallings
SASari Acra
Sari Acra
MDMichael DeBaun
Michael DeBaun
Previously, we demonstrated that older children with sickle cell anemia (SCA) living in Nigeria are at increased risk of death if they are underweight (weight-for-age z score < −1). We now conducted a cross-sectional study in low- and high-income settings to determine the risk factors for being underweight a in children aged 5 to 12 years with SCA. The children from low- and high-income settings were eligible participants for the Primary Prevention of Stroke in Children with Sickle Cell Disease in Nigeria (SPRING; N = 928) and the Silent Cerebral Infarct (SIT, North America/Europe; N = 1093) trials, respectively. The median age in the SPRING and SIT cohorts was 8.1 and 8.5 years, respectively (P < .001). A total of 87.9% (n = 816) of participants in the SPRING trial (low-income) met the study criteria for being underweight (weight-for-age z score < −1), and 22.7% (n = 211) for severely underweight (weight-for-age z score < −3), significantly higher than the SIT (high-income) cohort at 25.7% underweight (n = 281) and 0.7% severely underweight (n = 8; P < .001 for both comparisons). In the combined cohort, older age (odds ratio [OR], 1.24; P < .001) and lower hemoglobin level (OR, 0.67; P < .001) were associated with being underweight. Age and hemoglobin level remained statistically significant in separate models for the SPRING and SIT cohorts. Older age and lower hemoglobin levels in children aged 5 to 12 years with SCA are associated with being underweight in low- and high-income settings.

8 July 2021 in Journal of Pediatric Gastroenterology and Nutrition
Verified
Journal Article
Closed access
LKLauren Jane Klein
Lauren Jane Klein
RCReid C. Chamberlain
Reid C. Chamberlain
KBKristin Bonello
Kristin Bonello
AMAngelo S. Milazzo
Angelo S. Milazzo
RNRichard J. Noel
Richard J. Noel