A case of exuberant endoscopic presentation of asymptomatic eosinophilic colitis.

Eosinophilic colitis is a rare entity characterized by a broad range of gastrointestinal symptoms and idiopathic infiltration of eosinophils in the colon. This condition is most likely underreported due to the absence of standardized diagnostic criteria. We present the case of a 72-year-old man who underwent an outpatient colorectal cancer surveillance colonoscopy without gastrointestinal complaints. Colonoscopy revealed a diffuse micronodular pattern of the colonic mucosa, with histopathological analysis showing a polymorphic infiltrate rich in eosinophils in the lamina propria. The patient was kept under surveillance, with a repeat colonoscopy showing persistent endoscopic and histological findings consistent with eosinophilic colitis. The patient remains asymptomatic. This case is unique from both clinical and endoscopic perspectives due to the asymptomatic course of this rare condition and the illustrative iconography.

Giant fibroepithelial polyp of the esophagus successfully managed endoscopically.

An 68-year-old woman complained of substernal discomfort and occasional regurgitation of a fleshy mass into her mouth. There was no history of weight loss, dysphagia or dyspnea. Upper endoscopy revealed a polypoid digitiform mass with a single pedicle arising from the upper esophagus and extending 8 cm downward. A CT scan demonstrated an elongated intraluminal esophageal mass extending from the cervical esophagus with a longitudinal length of more than 7 cm. Endoscopic ultrasound revealed a subepithelial lesion sparing the muscularis propria layer. The decision was made to proceed with endoscopic polypectomy, which was successfully performed using a hot snare after prophylactic hemostasis with an endoloop. Histology revealed a fibrovascular polyp. The patient had an uneventful recovery and became asymptomatic. We present this case due to its rarity and atypical presentation.

Unravelling the Gut Microbiome Role in Cardiovascular Disease: A Systematic Review and a Meta-Analysis.

A notable shift in understanding the human microbiome's influence on cardiovascular disease (CVD) is underway, although the causal association remains elusive. A systematic review and meta-analysis were conducted to synthesise current knowledge on microbial taxonomy and metabolite variations between healthy controls (HCs) and those with CVD. An extensive search encompassing three databases identified 67 relevant studies (2012-2023) covering CVD pathologies from 4707 reports. Metagenomic and metabolomic data, both qualitative and quantitative, were obtained. Analysis revealed substantial variability in microbial alpha and beta diversities. Moreover, specific changes in bacterial populations were shown, including increased Streptococcus and Proteobacteria and decreased Faecalibacterium in patients with CVD compared with HC. Additionally, elevated trimethylamine N-oxide levels were reported in CVD cases. Biochemical parameter analysis indicated increased fasting glucose and triglycerides and decreased total cholesterol and low- and high-density lipoprotein cholesterol levels in diseased individuals. This study revealed a significant relationship between certain bacterial species and CVD. Additionally, it has become clear that there are substantial inconsistencies in the methodologies employed and the reporting standards adhered to in various studies. Undoubtedly, standardising research methodologies and developing extensive guidelines for microbiome studies are crucial for advancing the field.

Gestational Diabetes Risk and Low Birth Weight After Metabolic Bariatric Surgery: a Complex Interplay to be Balanced.

INTRODUCTION: Metabolic bariatric surgery (MBS) is known to improve the obstetric outcomes of women with obesity and to prevent gestational diabetes (GD). To what extent does MBS decreases GD, without incurring at additional risks is a matter of concern. METHODS: A retrospective case-control study to compare the pregnancy outcomes of women previously submitted to MBS to those of age and preconception body mass index (PC BMI) matched non-operated controls. RESULTS: Pregnancies of women after MBS (n = 79) and matched controls (n = 79) were included. GD was significantly less frequent after MBS (7.6% vs. 19%; p = 0.03). Fasting blood glucose (76.90 ± 0.77 vs 80.37 ± 1.15 mg/dl, p < 0.05; 70.08 ± 1.34 vs. 76.35 ± 0.95 mg/dl; p < 0.05, first and second trimesters respectively) and birth weight (2953.67 ± 489.51 g vs. 3229.11 ± 476.21 g; p < 0.01) were significantly lower after MBS when compared to controls. The occurrence of small-for-gestational-age (SGA) was more frequent after MBS (22.8% vs. 6.3%; p < 0.01), but no longer significant after controlling for smoking habits (15.5% vs. 6%, p = 0.14). There were no significant differences in gestational weight gain, prematurity rate nor mode of delivery between groups. CONCLUSION: MBS was associated with a lower prevalence of GD than observed in non-operated women with the same age and BMI. After controlling for smoking, this occurred at the expense of a lower birth weight. Our data reinforces the hypothesis that MBS has body weight independent effects on glucose kinetics during pregnancy with distinctive impacts for mother and offspring, which need to be balanced.

Synchronous Gastric and Rectal Adenocarcinoma With Complete Response After Total Neoadjuvant Therapy: A Case Report.

Synchronous gastric cancer with another neoplasm is a rare condition, with colorectal cancer being the most frequently associated neoplasm. This article presents a case of a 76-year-old male diagnosed with synchronous gastric and rectal cancer with complete remission of gastric and rectal neoplasms after adjuvant therapy. The patient exhibited symptoms prompting upper and lower endoscopies, revealing gastric and rectal adenocarcinomas, respectively. Staging was performed, and due to the locally advanced nature of both malignancies, the patient underwent total neoadjuvant therapy (TNT) for rectal cancer. The treatment consisted of external radiotherapy and neoadjuvant chemotherapy with oxaliplatin, leucovorin, folinic acid, and fluorouracil (FOLFOX). Remarkably, after seven cycles, a complete clinical response of the rectal neoplasm was achieved. Subsequent surgical resection included simultaneous subtotal gastrectomy and rectal anterior resection, resulting in a complete pathological response for both tumors. To the best of our knowledge, it is among the first cases to report a full pathological response in gastric cancer following TNT intended for rectal cancer.

Cultural Translation and Validation of the Bariatric Quality of Life Index to European Portuguese.

INTRODUCTION: Obesity is a chronic noncommunicable disease, defined by a body mass index over 30 kg/m2. Its impact is not restricted to its association with higher risks of mortality and morbidity from other noncommunicable diseases, but also with a decrease in quality of life (QoL). There are several tools to assess QoL, from generic health-related tools to obesity-related specific ones. However, to assess QoL in patients undergoing bariatric surgery, only the Bariatric Analysis and Reporting Outcome System was available, which presented some significant problems. Therefore, the Bariatric Quality of Life (BQL) Index was developed. The aim of this study was the validation and cultural adaptation of the BQL Index for European Portuguese. METHODS: A cross-sectional study was conducted, with the presentation of two questionnaires to the participants: BQL Index and EQ-5D-3L (European Quality of Life 5 Dimensions and 3 Level) Index. Direct translation followed reviewing, back-translation, comparison, and pilot testing were performed. Retest was done six months after the baseline. The following psychometric properties were assessed: convergent validity using the Spearman r correlation coefficient between BQL Index and EQ-5D-3L Index; internal consistency based on Cronbach alpha coefficient; and reproducibility between test and retest through Spearman r correlation coefficient and intraclass correlation coefficient (ICC). RESULTS: A total of 260 participants were included, the mean age was 45 ± 10 years old, the mean body mass index was 44 ± 6.5 kg/m2 and 78% were females. The most frequent obesity-related comorbidities were osteoarticular disease (69%), anxiety/depression (60%), and hypertension (54%). The most common eating patterns were volume eater (67%) and sweet eater (62%). Quality of Life scores were 41.3 ± 9.3 for the BQL Index, 0.35 ± 0.19 for the EQ-5D-3L Index and 55.7 ± 19.8 for the EQ-5D-3L VAS. The translation yielded good convergent validity (r = 0.62), good internal consistency (alpha = 0.94), and good reproducibility (r = 0.62 and ICC = 0.79). CONCLUSION: Our translation exhibited good parametric properties, with validity within the original BQL values, higher internal consistency, and good reproducibility.

Influence of preconception body mass index on perinatal outcomes after metabolic and bariatric surgery.

INTRODUCTION: Metabolic and bariatric surgery (MBS) is a very effective weight loss intervention, although does not invariably reverses the obesity status. Our aim was to evaluate whether despite successful weight loss after MBS, persistence of obesity at time of conception still carries additional risks of adverse perinatal pregnancy outcomes. METHODS: Retrospective study comparing pregnancy outcomes of women previously submitted to MBS with a preconception (PC) body mass index BMI < 30 kg/m2 or PC BMI ≥ 30 kg/m2. RESULTS: Eighty pregnancies (n = 80) were included, 49 from women with a PC BMI < 30 kg/m2 and 31 with a PC BMI ≥ 30 kg/m2. Gestational weight gain was significantly lower (9.72 ± 7.10 vs. 13.81 ± 7.16 respectively; p = 0.01) and neonatal intensive care unit admissions were significantly higher (5% vs. 0% respectively; p = 0.02) in women with PC BMI ≥ 30 kg/m2 as compared to those with PC BMI < 30 kg/m2. There were no statistically significant differences in gestational diabetes, anemia, fetal growth restriction, prematurity rate, mode of delivery or birth weight between groups. CONCLUSION: Perinatal outcomes of pregnancies after MBS may be significantly influenced by PC BMI. The benefits of MBS induced weight loss on obesity-associated adverse pregnancy outcomes can be maximized if the obesity status can be reverted before pregnancy.

Percutaneous gastrostomies in advanced cancer.

Introduction: Gastrostomies can be performed percutaneously by interventional radiology (PRG) or endoscopy (PEG). Methods: Retrospective analysis of patients with advanced cancer who underwent a gastrostomy in 2017 in an oncology center. Results: In 2017, 164 patients underwent gastrostomies, and 137 (84%) were male. The median age was 60 years (range: 38-91). The predominant Eastern Cooperative Oncology Group (ECOG) performance status stage was 1, with 73 (45%) patients. Head and neck cancer was the most common diagnosis, with 127 (77%) cases. The most frequent reason for performing a gastrostomy was dysphagia, 132 (81%). Most gastrostomies were PEG, 121 (74%), followed by PRG, 41 (25%), and surgery, 2 (1%). Early complications occurred in 86 (52%) patients, and the most frequent of them were local pain in 69 (80%) patients and minor local bleeding in 13 (15%). Late complications occurred in 90 (55%) patients, and the most frequent was also local pain in 57 (63%) patients, followed by local infection in 8 (9%), tube extrusion in 7 (8%), and stomal leakage in 7 (8%). In the multivariable analysis, the factors associated with survival were lymph node metastases and the ECOG performance status. Until June 30th, 2022, 123 (75%) patients had died, and 41 (25%) were still alive. Conclusion: Gastrostomies were performed predominantly in ECOG performance stage 1 patients with head and neck cancer and symptoms of dysphagia, and PEG was the most common procedure.

Primary esophageal follicular lymphoma: a rare entity / Linfoma folicular esofágico primario: una entidad rara

A 63-year-old woman presented with dyspepsia de novo. An esophagogastroduodenoscopy revealed a 30 mm flat yellowish esophageal lesion, 28 cm from the incisors (Fig. 1a), with the stomach and duodenum without any lesion. Helicobacter pylori infection was excluded. Histological examination was suggestive of a lymphoproliferative process (Fig. 1b). Immunohistochemistry showed diffuse positivity for CD20 (Fig. 1c) and BCL-2 (Fig. 1d), dim CD10 and BCL-6 staining, a Ki-67 of 20-25%, no CD21 or cyclin D1 expression, all these features compatible with low-grade follicular lymphoma. Physical examination was unremarkable. Computed tomography of the neck, chest, and abdomen revealed no lymph node enlargement, hepatosplenomegaly or metastasis. Blood routine tests and tumor markers were at normal levels. Bone marrow biopsy showed no involvement by lymphoma. Therefore, a diagnosis of primary follicular lymphoma of the esophagus was made. The patient opted for a watch-and-wait strategy and there is no evidence of disease progression after four years of follow-up.(AU)

The Association between Gestational Diabetes and the Microbiome: A Systematic Review and Meta-Analysis.

Gestational diabetes, affecting about 10% of pregnancies, is characterized by impaired glucose regulation and can lead to complications for health of pregnant women and their offspring. The microbiota, the resident microbes within the body, have been linked to the development of several metabolic conditions. This systematic review with meta-analysis aims to summarize the evidence on the differences in microbiota composition in pregnant women with gestational diabetes and their offspring compared to healthy pregnancies. A thorough search was conducted in the PubMed, Scopus, and Web of Science databases, and data from 21 studies were analyzed utilizing 41 meta-analyses. In the gut microbiota, Bifidobacterium and Alistipes were found to be more abundant in healthy pregnancies, while Roseburia appears to be more abundant in gestational diabetes. The heterogeneity among study findings regarding the microbiota in the meconium is considerable. The placental microbiota exhibited almost no heterogeneity, with an increased abundance of Firmicutes in the gestational diabetes group and a higher abundance of Proteobacteria in the control. The role of the microbiota in gestational diabetes is reinforced by these findings, which additionally point to the potential of microbiome-targeted therapies. To completely comprehend the interactions between gestational diabetes and the microbiome, standardizing methodologies and further research is necessary.

Voluminous bilateral adnexal cysts in a young female: the challenge of fertility preservation.

An ovarian benign cyst is a common finding in women of reproductive age. However both the disease and its treatment may have an impact on ovarian reserve, resulting in a significant risk of premature ovarian insufficiency. The counselling on fertility preservation is of paramount importance in such cases. We report the management of a young woman with giant bilateral benign adnexal cysts, highlighting the complexity of fertility preservation in such scenario.

Effects of Triiodothyronine Treatment in an Animal Model of Heart Failure with Preserved Ejection Fraction.

Background: Low levels of triiodothyronine (T3) are common in patients with heart failure (HF). Our aim was to evaluate the effects of supplementation with low and replacement doses of T3 in an animal model of HF with preserved ejection fraction (HFpEF). Methods: We evaluated four groups: ZSF1 Lean (n = 8, Lean-Ctrl), ZSF1 Obese (rat model of metabolic-induced HFpEF, n = 13, HFpEF), ZSF1 Obese treated with a replacement dose of T3 (n = 8, HFpEF-T3high), and ZSF1 Obese treated with a low-dose of T3 (n = 8, HFpEF-T3low). T3 was administered in drinking water from weeks 13 to 24. The animals underwent anthropometric and metabolic assessments, echocardiography, and peak effort testing with maximum O2 consumption (VO2max) determination at 22 weeks, and a terminal hemodynamic evaluation at 24 weeks. Afterwhile myocardial samples were collected for single cardiomyocyte evaluation and molecular studies. Results: HFpEF animals showed lower serum and myocardial thyroid hormone levels than Lean-Ctrl. Treatment with T3 did not normalize serum T3 levels, but increased myocardial T3 levels to normal levels in the HFpEF-T3high group. Body weight was significantly decreased in both the T3-treated groups, comparing with HFpEF. An improvement in glucose metabolism was observed only in HFpEF-T3high. Both the treated groups had improved diastolic and systolic function in vivo, as well as improved Ca2+ transients and sarcomere shortening and relaxation in vitro. Comparing with HFpEF animals, HFpEF-T3high had increased heart rate and a higher rate of premature ventricular contractions. Animals treated with T3 had higher myocardial expression of calcium transporter ryanodine receptor 2 (RYR2) and α-myosin heavy chain (MHC), with a lower expression of ß-MHC. VO2max was not influenced by treatment with T3. Myocardial fibrosis was reduced in both the treated groups. Three animals died in the HFpEF-T3high group. Conclusions: Treatment with T3 was shown to improve metabolic profile, myocardial calcium handling, and cardiac function. While the low dose was well-tolerated and safe, the replacement dose was associated with increased heart rate, and increased risk of arrhythmias and sudden death. Modulation of thyroid hormones may be a potential therapeutic target in HFpEF; however, it is important to take into account the narrow therapeutic window of T3 in this condition.

Primary esophageal follicular lymphoma: a rare entity.

A 63-year-old woman presented with dyspepsia de novo. An esophagogastroduodenoscopy revealed a 30 mm flat yellowish esophageal lesion, 28 cm from the incisors (Fig. 1a), with the stomach and duodenum without any lesion. Helicobacter pylori infection was excluded. Histological examination was suggestive of a lymphoproliferative process (Fig. 1b). Immunohistochemistry showed diffuse positivity for CD20 (Fig. 1c) and BCL-2 (Fig. 1d), dim CD10 and BCL-6 staining, a Ki-67 of 20-25%, no CD21 or cyclin D1 expression, all these features compatible with low-grade follicular lymphoma. Physical examination was unremarkable. Computed tomography of the neck, chest, and abdomen revealed no lymph node enlargement, hepatosplenomegaly or metastasis. Blood routine tests and tumor markers were at normal levels. Bone marrow biopsy showed no involvement by lymphoma. Therefore, a diagnosis of primary follicular lymphoma of the esophagus was made. The patient opted for a watch-and-wait strategy and there is no evidence of disease progression after four years of follow-up.

The Association Between Opioid Prescribing and Opioid-Related Mortality Within Neighborhoods in Ontario, Canada: A Case-Control Study.

OBJECTIVE: Recent Canadian data show that the prescribing of opioids has declined while the number of opioid deaths continues to rise. This study aimed to assess the relationship between neighborhood-level opioid prescription rates and opioid-related mortality among individuals without an opioid prescription. METHOD: This was a nested case-control study using data in Ontario from 2013 to 2019. Neighborhood-level data were analyzed by using dissemination areas that consist of 400-700 people. Cases were defined as individuals who had an opioid-related death without an opioid prescription filled in the year prior. Cases and controls were matched using a disease risk score. After matching, there were 2,401 cases and 8,813 controls. The primary exposure was the total volume of opioids dispensed within the individual's dissemination area in the 90 days before the index date. Conditional logistic regression was used to examine the association between opioid prescriptions and the risk of overdose. RESULTS: There was no significant association between the total volume of opioid prescriptions dispensed in a dissemination area and opioid-related mortality. In subgroup analyses stratifying the cohort into prescription and nonprescription opioid-related mortality, the number of prescriptions dispensed was positively associated with prescription opioid-related mortality. There was also a significant inverse association between the increased total volume of opioids dispensed and nonprescription opioid mortality. CONCLUSIONS: Our results suggest that prescription opioids dispensed within a neighborhood can have both potential benefits and harms. The opioid epidemic requires a nuanced approach that ensures appropriate pain care for patients while also creating a safer environment for opioid use through harm-reduction strategies.

Understanding Characteristics, Treatment Patterns, and Clinical Outcomes for Individuals with Advanced or Recurrent Endometrial Cancer in Alberta, Canada: A Retrospective, Population-Based Cohort Study.

Endometrial cancer (EC) incidence has increased in recent decades. However, population-based outcomes data are limited. In this retrospective cohort study, we examined characteristics, treatment patterns, and clinical outcomes, including time to next treatment (TNNT) and overall survival (OS), among advanced/recurrent (A/R) EC patients between 2010 and 2018 in Alberta, Canada. Kaplan-Meier statistics evaluated TTNT and OS, stratified by patient (A/R) and treatment. A total of 1053 patients were included: 620 (58.9%) advanced and 433 (41.1%) recurrent. A total of 713 (67.7%) patients received first-line therapy: 466 (75.2%) advanced and 247 (57.0%) recurrent. Platinum-based chemotherapy (PBCT) was the most common first-line regimen (overall: 78.6%; advanced: 96.1%; recurrent: 45.3%). The median TTNT and OS from first-line therapy were 19.9 months (95% confidence interval [CI]: 17.5-23.5) and 35.9 months (95% CI: 31.5-53.5), respectively. Following first-line PBCT, the median OS from second-line chemotherapy (N = 187) was 10.4 months (95% CI: 8.9-13.3) and higher for those rechallenged with PBCT (N = 72; 38.5%) versus no rechallenge (N = 115; 61.5%) (13.3 months [95% CI: 11.2-20.9] vs. 6.4 months [95% CI: 4.6-10.4; p < 0.001]). The findings highlight poor outcomes in A/R EC, particularly following first-line therapy, and that additional tolerable therapeutic options are needed to improve patient outcomes.

Undifferentiated Carcinoma With Osteoclast-Like Giant Cells: A Rare Cause of Upper Gastrointestinal Bleeding.

Undifferentiated osteoclast-like giant cell carcinomas (UOLGCCs) of the digestive tract are very rare, with only a few cases reported in the literature. An 82-year-old man was referred to the emergency department for melena. Endoscopic examination revealed a hemicircumferential ulcerovegetative lesion, involving the bulbar apex and extending to the second portion of the duodenum; biopsies revealed an UOLGCC. The patient underwent transfusion support therapy, and he was proposed for best supportive care. Duodenal UOLGCC is an extremely rare cause of upper gastrointestinal bleeding. Clinical findings and therapeutic approach represent a challenge in this pathology.

Prognostic Value of Bladder Involvement in the Outcome of Upper Tract Urothelial Carcinoma.

Accurately predicting the clinical prognosis of upper tract urothelial carcinoma (UTUC) seems crucial. We evaluated the effect of the involvement of urothelial bladder carcinoma (UBC) as a potential prognostic factor for overall survival (OS) and progression-free survival (PFS). The cohort included 115 patients with UTUC, subgrouped between January 2009 and December 2019 as follows: (1) only UTUC and (2) UTUC with synchronous or metachronous UBC (UTUC + UBC). Univariate and multivariate analyses were performed to identify independent prognostic factors for OS and PFS. Synchronous or metachronous UBC diagnosis in UTUC patients was an independent predictor of worse PFS (HR 3.326 CI 95% 1.474−7.503, p = 0.004), but it was not identified as a prognostic factor for OS (p > 0.05). Lymphovascular invasion (LVI) was associated with decreased PFS (HR 2.687 CI 95%1.172−6.163, p = 0.020) and OS (HR 4.980 CI 95%1.763−14.064, p = 0.002). This study indicates that concomitant or later UBC could predict a poor PFS, but it is not associated with a significantly worse OS in UTUC patients. The prognostic impact of LVI underlines its inclusion in the tumor staging system of UTUC.

Metformin in SARS-CoV-2 infection: A hidden path - from altered inflammation to reduced mortality. A review from the literature.

SARS-CoV-2 infection has been a major threat to human health and a huge challenge to Medicine. In only two years, COVID-19 affected >350 million people, causing >5.6 million deaths. Chronic inflammatory states, such as diabetes or obesity, are known risk factors for COVID-19 poorest outcomes, with higher risk for disease severity and greater mortality. Metformin remains on the first line of the management of hyperglycemia in type 2 diabetes. Through its anti-inflammatory and immunomodulatory mechanisms, metformin appears as an opportunity to control the dysregulated cytokine storm secondary to SARS-CoV-2 infection. Recent studies point towards a potential protective role of metformin in the course of COVID-19, showing that current or previous treatment with metformin associates with better outcomes.

Endoscopic Ultrasound Through-The-Needle Biopsy of Pancreatic Cysts: Toward Procedure Standardization.

BACKGROUND AND AIMS: EUS-guided through-the-needle microforceps biopsy (EUS-TTNB) was introduced as a new diagnostic tool to establish pancreatic cyst histotype and help to better risk stratify the patients. The aim of this study was to describe the technical success, diagnostic yield, and adverse events of through-the-needle biopsy and discuss the technique variations, focusing on future procedure standardization. METHODS: We performed a prospective single-center study including patients with presumed mucinous cysts harboring worrisome features or indeterminate cyst type on imaging, submitted to EUS-TTNB using Moray® microforceps between March 2018 and September 2021. Specimens were processed as a cell-block. RESULTS: We included 40 patients. Technical success was 97.5%. The diagnostic yield was 72.5% for TTNB whereas for cyst fluid cytology/analysis it was 27.5%. Moreover, without TTNB 5 mucinous lesions would not have been diagnosed. TTNB had a sensitivity of 76% and a specificity of 91%, while FNA cytology had a sensitivity and specificity of 35% and 91%, respectively. Moreover for IPMN lesions, subtyping was possible in 63% of cases. TTNB resulted in change in clinical management in 20% of patients. We registered three adverse events: 2 self-limited intracystic bleeding and 1 patient with abdominal pain not associated with pancreatitis. CONCLUSION: TTNB proved superior to cyst fluid analysis and cytology for the definition of cyst histotype and mucinous cyst diagnosis with acceptable risk profile. Further studies should explore the best steps for procedure standardization.

Routine Ultrasound at 30th-33rd weeks versus 30th-33rd and 35th-37th weeks in Low-Risk Pregnancies: A Randomized Trial.

INTRODUCTION: The aim of this study was to evaluate the accuracy of 35-37 weeks' ultrasound for fetal growth restriction (FGR) detection and the impact of 30th-33rd weeks versus 30th-33rd and 35th-37th weeks' ultrasound on perinatal outcomes. METHODS: This was a randomized controlled trial that enrolled 1,061 low-risk pregnant women: 513 in the control group (routine ultrasound performed at 30th-33rd weeks) and 548 in the study group (with an additional ultrasound at 35th-37th weeks). FGR was defined as a fetus with an estimated fetal weight (EFW) below the 10th percentile. p values < 0.05 were considered statistically significant. RESULTS: The ultrasound at 35-37 weeks had an overall accuracy of FGR screening of 94%. Spearman's correlation coefficient between EFW and birthweight centile was higher for at 35-37 weeks' ultrasound (ρ = 0.75) compared with 30-33 weeks' ultrasound (ρ = 0.44). The study group had a lower rate of operative vaginal deliveries (24.4% vs. 39.3%, p = 0.005) and cesarean deliveries for nonreassuring fetal status (16.8% vs. 38.8%, p < 0.001). DISCUSSION/CONCLUSION: A later ultrasound (35-37 weeks) had a high accuracy for detection of FGR and had a higher correlation between EFW and birthweight centiles. Furthermore, it was also associated with lower adverse perinatal outcomes compared to an earlier ultrasound.