Sagittal Abdominal Diameter Research Articles

Association between sagittal abdominal diameter-to-height ratio and all-cause mortality among adults in the United States: a longitudinal study

BackgroundThe global health crisis of obesity has prompted a need for better indicators of abdominal obesity than body mass index, with sagittal abdominal diameter emerging as a potential candidate. Nonetheless, the association between sagittal abdominal diameter-to-height ratio (SADHtR) and mortality remains inadequately established. Our objective was to contribute novel evidence to this association.MethodsThis study encompassed 12,572 participants aged 18–80 years from the National Health and Nutrition Examination Survey 2011–2016. Mortality data were tracked until December 31, 2019. Weighted multivariable Cox proportional hazard models were employed to evaluate the association between SADHtR and all-cause mortality, with subgroup analyses conducted for result robustness.ResultsFollowing a median follow-up period of 69 months, each standard deviation (SD) increase in SADHtR was consistently associated with a higher risk of all-cause mortality across three models, yielding a hazard ratio (HR) and 95% confidence interval (CI) of 1.51(1.29,1.76) in model 3. Additionally, compared to the first tertile of SADHtR, the third tertile exhibited a higher risk for all-cause mortality, with HRs(95%CIs) of 1.58(1.25,2.01) in model 1, 2.01(1.33,3.02) in model 2, and 1.74(1.19,2.57) in model 3. Notably, subgroup analysis revealed persistent positive associations between SADHtR and all-cause mortality among subgroups based on age-at-risk (< 65, ≥ 65 years), sex, diabetes, hypertension, and hyperlipidemia.ConclusionsElevated SADHtR was consistently associated with a higher risk of all-cause mortality in American adults. Regular SADHtR measurement should be considered to be integrated into clinical practice and healthcare examinations.

The challenges of assessing adiposity in a clinical setting.

To tackle the burden of obesity-induced cardiometabolic disease, the scientific community relies on accurate and reproducible adiposity measurements in the clinic. These measurements guide our understanding of underlying biological mechanisms and clinical outcomes of human trials. However, measuring adiposity and adipose tissue distribution in a clinical setting can be challenging, and different measurement methods pose important limitations. BMI is a simple and high-throughput measurement, but it is associated relatively poorly with clinical outcomes when compared with waist-to-hip and sagittal abdominal diameter measurements. Body composition measurements by dual energy X-ray absorptiometry or MRI scans would be ideal due to their high accuracy, but are not high-throughput. Another important consideration is that adiposity measurements vary between men and women, between adults and children, and between people of different ethnic backgrounds. In this Perspective article, we discuss how these critical challenges can affect our interpretation of research data in the field of obesity and the design and implementation of clinical guidelines.

New sagittal abdominal diameter and transverse abdominal diameter based equations to estimate visceral fat area in type 2 diabetes patients

ObjectiveComputed Tomography (CT) or Magnetic Resonance Imaging (MRI) are considered gold standards for measuring visceral fat area (VFA). However, their relatively high prices and potential radiation exposure limit their widespread use in clinical practice and everyday life. Therefore, our study aims to develop a VFA estimated equation based on sagittal abdominal diameter (SAD) and transverse abdominal diameter (TAD) using anthropometric indexes. To the best of our knowledge, there have been limited studies investigating this aspect thus far.MethodsThis study was designed as a cross-sectional, retrospective cohort survey. A total of 288 patients (167 males and 121 females) aged 18–80 with type 2 diabetes (T2D) were consecutively collected from a multicenter hospital, and VFA was measured by CT. Subsequently, variables highly correlated with VFA were screened through general linear correlation analysis. A stepwise regression analysis was then conducted to develop a VFA estimated equation. Discrepancies between the estimated and actual VFA values were assessed using the Bland-Altman method to validate the accuracy of the equation.ResultsIn the female T2D population, triglyceride (TG), SAD, TAD were found to be independently correlated with VFA; in the male T2D population, BMI, TG, SAD and TAD showed independent correlations with VFA. Among these variables, SAD exhibited the strongest correlation with VFA (r = 0.83 for females, r = 0.88 for males), followed by TAD (r = 0.69 for females, r = 0.79 for males). Based on these findings, a VFA estimated equation was developed for the T2D population: VFA (male) =-364.16 + 15.36*SAD + 0.77*TG + 9.41*TAD − 5.00*BMI (R2 = 0.75, adjusted R2 = 0.74); VFA(female)=-170.87 + 9.72*SAD-24.29*(TG^-1) + 3.93*TAD (R2 = 0.69, adjusted R2 = 0.68). Both models demonstrated a good fit. The Bland-Altman plot indicated a strong agreement between the actual VFA values and the estimated values, the mean differences were close to 0, and the majority of differences fell within the 95% confidence interval.ConclusionsIn the T2D population, a VFA estimated equation is developed by incorporating SAD and TAD along with other measurement indices. This equation demonstrates a favorable estimated performance, suggesting to the development of novel and practical VFA estimation models in the future study.

Association between sagittal abdominal diameter-to-height ratio and arteriosclerotic cardiovascular disease among the United States adults: A cross-sectional study

ObjectivesAbdominal obesity is recognized as a significant determinant of Arteriosclerotic cardiovascular disease (ASCVD), with sagittal abdominal diameter (SAD) being considered a more precise indicator of visceral fat. Nevertheless, the association between SAD and ASCVD remains unexplored in large-scale general-population studies. MethodsThe study included 11,211 participants aged 20 to 80 from the National Health and Nutrition Examination Survey. Logistic regression models were utilized to evaluate the association between the SAD-to-height ratio (SADHtR) and ASCVD. Subgroup analyses based on age categories, sex, diabetes, and hypertension were conducted to assess result robustness. ResultsThe median SADHtR value was 0.13 (0.12–0.15), and 1,006 cases (7.46 %) of ASCVD were recorded. Multivariable models showed that each standard deviation increase in SADHtR was positively associated with higher odds of ASCVD (OR 1.48, 95 % CI 1.36–1.62 in model 1; OR 1.41, 95 % CI 1.28–1.54 in model 2; OR 1.18, 95 % CI 1.08–1.30 in model 3). Comparing the first quartile of SADHtR to the second to fourth quartiles, positive associations with ASCVD were observed in models 1 and 2. However, in model 3, only the fourth quartile of SADHtR remained statistically significant (OR 1.58, 95 % CI 1.17–2.15), with all p-values for the trend being less than 0.05. No interactions were found in the subgroup analyses. ConclusionThis study demonstrates a positive association between SADHtR and ASCVD in the general adult population of the United States. Our findings indicate that SADHtR, especially when ≥ 0.155, could be a valuable metric for assessing the risk of ASCVD.

Sagittal Abdominal Diameter as the Best Predictor of Metabolic Syndrome in HIV-Infected Men on Antiretroviral Therapy.

The interaction of human immunodeficiency virus (HIV), host and antiretroviral therapy (ART) causes a range of metabolic disorders that can be characterized as a metabolic syndrome (MetS) that increases the cardiovascular risk. MetS involves central obesity, which can be detected using different anthropometric parameters. To assess the abilities of different anthropometric parameters in the prediction of MetS in HIV-infected men on ART. The study involved 92 male participants (mean age 44.46±10.38 years), divided into two groups: with and without MetS. All subjects underwent biochemical evaluation (triglycerides, HDL-cholesterol, fasting glucose), blood pressure measurement and anthropometric assessment: body mass, body height, body mass index (BMI), body fat mass, body circumferences (chest, upper arm, forearm, waist, hip, proximal and middle thigh and calf), sagittal abdominal diameter (SAD), skinfold thicknesses (subscapular, anterior and posterior upper arm, anterior and lateral forearm, abdominal, supraspinal, thigh and calf), waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), waist-to-thigh ratio (WTR), sagittal abdominal diameter-to-body height ratio (SADH), body adiposity index (BAI) and conicity index. MetS was specified according to IDF criteria. Subjects with MetS had statistically significant higher values of all anthropometric parameters except middle thigh circumference, calf skinfold and body height. According to ROC analysis and Binary Logistic Regression, SAD has been shown as the best predictor of MetS with a predictive value of 21.40 cm (AUC:0.91), followed by WHR with a predictive value of 0.93. Sagittal abdominal diameter is the strongest anthropometric indicator of MetS in HIV-infected patients on ART.

Correlation of serum uric acid levels with certain anthropometric parameters in prediabetic and drug-naive diabetic subjects.

Uric acid is produced during the metabolism of nucleotide and adenosine triphosphate and contains the final product of human purine metabolism. It acts both as an antioxidant and pro-inflammatory marker and has a positive association with visceral fat in overweight subjects. The aim of the present study is to find an association of uric acid level with certain anthropometric parameters in subjects having type 2 diabetes. The study included 124 urban drug-naive diabetic Indian subjects above 18 years of age from the general population of the city of North India. Uric acid concentrations were estimated by the uricase method. Fasting plasma glucose (FPG) concentrations were estimated by the glucose oxidase-peroxidase method. Anthropometric measurements and information on lifestyle factors and disease history were collected through in-person meeting. All participants of the study subjects had a body mass index (BMI) of more than 23.5. BMI, waist-to-hip ratio (WHR), waist-to-height ratio, waist circumference, neck circumference, weight, age, sagittal abdominal diameter (SAD), skinfold thickness, and body roundness index were positively correlated with the serum uric acid level. The correlation of weight, BMI, SAD, and WHR was statistically significant. We found that serum uric acid level increases as body fat content increases. Statistical data show remarkable results for a significant correlation of uric acid level with BMI, WHR, SAD, and FPG. Hypertrophy occurs as a result of inflammatory processes and oxidative stress when the supply of energy starts to exceed the storage capacity of adipocytes, as a result, adipokines such as interleukin (IL)-1, IL-6, and tumor-necrosis factor-alpha are released more frequently which lead to low-grade chronic inflammation. Uric acid levels are much lean toward visceral obesity than overall body fat content.

The Effect of Flexitarian Diet on Waist Circumference and Sagittal Abdominal Diameter (SAD) in Obese Female Students

&#x0D; Latar Belakang: Obesitas sentral menyebabkan berbagai penyakit. Lemak perut dikaitkan dengan gangguan metabolisme. Intervensi diet yang menargetkan lemak perut dilaporkan memiliki manfaat kesehatan. Pola makan nabati diketahui bermanfaat dalam mengurangi lemak perut.&#x0D; Tujuan: Penelitian ini bertujuan untuk melihat pengaruh diet flexitarian terhadap lemak perut melalui lingkar pinggang dan diameter sagital perut (SAD).&#x0D; Metode: Penelitian ini menggunakan quasi eksperimen dengan desain pre-post test control group design. Jumlah subjek penelitian adalah 21 siswi obesitas berusia 19-25 tahun di Semarang. Subyek dipilih dengan menggunakan metode consecutive sampling dan dibagi menjadi kelompok perlakuan dan kelompok kontrol. Kelompok perlakuan diberikan edukasi dan diet fleksibel selama 4 minggu, sedangkan kelompok kontrol diberikan edukasi. Data antropometri diambil sebelum dan sesudah intervensi. Analisis statistik dilakukan dengan uji-t berpasangan, uji-t independen, Mann Whitney, dan ANCOVA.&#x0D; Hasil: Asupan antar kelompok selama intervensi yang menunjukkan perbedaan statistik adalah energi, lemak, dan serat. SAD antara kelompok perlakuan (-1,2±0,6cm) dan kelompok kontrol (0,2±1,5cm) menunjukkan perbedaan yang bermakna (p=0,010). Tidak ada perbedaan bermakna lingkar pinggang antar kelompok, namun penurunan pada kelompok perlakuan lebih besar (-6,6±5,5cm). Aktivitas fisik tidak mempengaruhi perubahan SAD (p=0,210), sedangkan perlakuan diet mempengaruhi perubahan SAD (p=0,010).&#x0D; Kesimpulan: Perubahan SAD menunjukkan perbedaan yang signifikan antara kelompok setelah intervensi. Perubahan lingkar pinggang tidak signifikan antar kelompok, namun penurunan lebih besar pada kelompok perlakuan.&#x0D;

Abdominal Fat is a Reliable Indicator of Lumbar Intervertebral Disc Degeneration than Body Mass Index

The objective of this study was to determine whether abdominal fat status correlates with low back pain (LBP) and lumbar intervertebral disc degeneration (IVDD) and to identify a new anthropometric index to predict the likelihood of developing LBP. Patients with chronic low back pain admitted to the Affiliated Hospital of Southwest Medical University from June 2022 to May 2023 were collected as the experimental group. Volunteers without LBP from June 2022 to May 2023 were also recruited as the control group. They underwent lumbar spine magnetic resonance imaging and had their body mass index (BMI) measured. Abdominal parameters were measured on T2-weighted median sagittal magnetic resonance imaging at the L3/4 level: abdominal diameter, sagittal abdominal diameter (SAD), and subcutaneous abdominal fat thickness (SAFT). Each lumbar IVDD was assessed using the Pfirrmann grading system. The differences in abdominal parameters and BMI between the experimental and control groups were compared, and the correlations between abdominal parameters, BMI, LBP, and IVDD were analyzed. Abdominal diameter, SAD, and SAFT had moderate-to-strong correlations with BMI. SAD was significantly associated with severe IVDD at L4-L5 and L5-S1 levels with odds ratio of 3.201 (95% confidence interval [CI]: 1.850-5.539, P<0.001) and 1.596 (95% CI: 1.072-2.378, P=0.021), respectively. BMI had no significant association with severe IVDD. In women, SAFT and BMI were significantly correlated with LBP; in men, only SAFT was significantly correlated with LBP. Appropriate cutoff values for men and women were 1.52cm (area under the curve=0.702, 95% CI: 0.615-0.789, P < 0.001) and 1.97cm (area under the curve=0.740, 95% CI: 0.662-0.818, P < 0.001), respectively. Men and women with SAFT of >1.52cm and >1.97cm, respectively, had significantly higher rates of LBP. SAD could predict severe IVDD better than BMI. SAFT is a better predictor of LBP than BMI, especially in men, and reliably distinguished patients with LBP from asymptomatic subjects with reliable cutoff values for men and women.

Anthropometry and blood biomarkers of diabetes and their possible association with obesity and metabolic syndrome.

Diabetes, a rapidly increasing heterogeneous disorder, is closely linked to the epidemic of obesity and metabolic syndrome (MetS). At present, we do not understand completely the blood biomarkers, molecular aetiology, and role of lifestyle modification and interventions to combat diabetes hand in hand with obesity and the MetS epidemic. To measure different anthropometric and blood biomarkers in pre-diabetic and diabetic patients, we collected data and blood samples from patients in a hospital OPD. This was a cross-sectional study that included the identification of possible relationships between different parameters to predict early diagnostic markers of diabetes. We found increased body mass index (BMI), fasting blood glucose, neck, waist, and hip circumference, sagittal abdominal diameter, and skin fold thickness in the diabetic as compared to the pre-diabetic group. Also, serum uric acid and insulin resistance (HOMA-IR) values were significantly increased in diabetic individuals. We found a significant positive correlation between serum uric acid and BMI, fasting blood glucose, serum insulin, and HOMA-IR values. Here, we found that pre-diabetic and diabetic patients have increased fasting glucose levels while we did not find any difference in insulin levels. Both pre-diabetic and diabetic patients show high serum uric acid, positively associated with a higher prevalence of diabetes and HOMA-IR. Uric acid may hence be an important parameter for early diagnostics. These findings may be used as a basis for future studies that aim to identify the mechanistic details of the association of uric acid with insulin signaling and hence better understanding of the phenomenon associated with diabetes. The online version contains supplementary material available at 10.1007/s40200-023-01276-4.

Replacing the body mass index with the sagittal abdominal diameter (abdominal height).

The body mass index (BMI; weight/height2 ), providing no information about the relative size of any adipose tissue depots, may accordingly misclassify degrees of cardiometabolic risk. However, in supine persons the abdominal height above the exam table (the sagittal abdominal diameter, SAD) is associated preferentially with the accumulation of visceral fat. Since visceral fat is a marker of insulin resistance, type 2 diabetes, coronary heart disease, and hypertension, SAD could contribute to the estimation of generalized cardiometabolic risk. The SAD has been measured inexpensively by a sliding-beam caliper in small studies and in the US National Health and Nutrition Examination Survey (NHANES). Cross-sectional models found that the SAD/height ratio (SADHtR) is more strongly associated than the waist circumference/height ratio or BMI with intermediary predictors of cardiometabolic disease. Prospective studies are needed, however, to demonstrate how well SAD or SADHtR might predict major disease outcomes or all-cause mortality.

Evaluation of the Correlations of SYNTAX scores, Anthropometric Measurements and Epicardial Fat Tissue in Predicting the Risk of Coronary Artery Disease

Aim: To investigate the strength of correlations between some anthropometric parameters, SYNTAX scores and epicardial adipose tissue (EFT) in coronary artery disease (CAD). Also to determine for the first time that the upper half of the chest circumference (CCuH) and neck circumference (NC)/neck length (NL) ratio may be an indicator for predicting cardiovascular risk Material and Methods: This study included 370 individuals (198 males and 172 females), who were either diagnosed with CAD (n=300) or who were the control group participants (n=70). The EFT was measured and calculated SYNTAX score. Anthropometric measurements included height, weight, NL, NC, Waist circumference (WC), CCuH, Hip circumference (HC), and sagittal abdominal diameter (SAD), Body Mass Index (BMI), Waist circumference/Hip circumference ratio (WHR), and NC/NL ratio. The study was approved by the Niğde Ömer Halisdemir University Non-Interventional Clinical Research Ethics Committee (Protocol number: 2019/29). Results: The statistical differences in the NL, CCuH, HC, and SAD were observed to be non-significant between the CAD patients and the control group. The NC (367.06±1.99, 37.49±2.64, p=0.04), NC/NL ratio (2.44±0.16, 2.50±0.21, p=0.02), WC (104.69±8.27, 107.55±10.77, p=0.04), Left Ventricular Ejection Fraction (LVEF) (62)-(51) (p&amp;lt;0.001), and EFT (3.06±0.33)-(3.41±0.80) were statistically significantly different between the control group and the CAD group (p&amp;lt;0.001). Elevated SYNTAX scores (r=0.15, p=0.01) and increased EFT (r=0.21, p&amp;lt;0.001) were more common in male patients. Conclusion: The SYNTAX score was determined to be correlated with the NC, NC/NL ratio, CCuH, WC, HC, WHR, SAD, and EFT and it was found that these parameters increased significantly with increasing SYNTAX scores. These results show that, in addition to the SYNTAX score, anthropometric measurements and EFT quantity can be used for determining the severity of CAD.

Adiposity and Coagulation: Predicting Postinjury Coagulation With Advanced Imaging Analysis

IntroductionAnatomic distribution of adipose tissue has demonstrated variable associations with hypercoagulability. Utilizing a retrospective analysis of a previously enrolled prospective cohort, we assessed computed tomography (CT) scan-based anthropometric and volumetric measures of adiposity as predictors of postinjury hypercoagulability. MethodsSegmentation analysis of arrival CT scans in significantly injured patients at a single level-I trauma center enrolled from December 2017 to August 2021 were analyzed for anthropometric indices of waist circumference (WC) and sagittal abdominal diameter (SAD), and volumetric parameters of visceral adipose tissue, superficial/deep subcutaneous adipose tissue, psoas/paravertebral muscle volume, and abdominal wall muscle volume. Associations with thromboelastography (TEG) were explored. ResultsData from 91 patients showed strong correlations between body mass index and standard anthropometric measures of WC and SAD (P < 0.001); calculated volumes of subcutaneous adipose tissue and visceral adipose tissue (P < 0.001); and ratios of subcutaneous adipose:psoas muscle (SP ratio) and visceral adipose:psoas muscle ratio (both with P < 0.001, respectively). Correlation between TEG maximal amplitude (MA) and body mass index and SAD were not significant, with only weak correlation between TEG-MA and WC (r = 0.238, P = 0.041). Moderate but significant correlations existed between SP ratio and TEG-MA (r = 0.340, P = 0.005), but not visceral adipose:psoas muscle ratio (r = 0.159, P = 0.198). The relationship between TEG-MA and SP ratio remained significant when adjusted for injury severity score and lactate level (b = 0.302, P = 0.001). ConclusionsSP ratio is more strongly correlated with TEG-MA than standard obesity measures, and independently predicts increasing clot strength/stability after injury. Coagulation-relevant measures of sarcopenic obesity can be measured on CT scan, and may be used to optimize thromboprophylaxis strategies for obese injured patients.

Dietary acid load decreases with age and is associated with sagittal abdominal diameter: a nationally representative quantification study in US adults

BackgroundDietary acid load (DAL) has been associated with frailty and hip fractures in older adults, who often have a reduced kidney function and thus compromised buffering capacities. Studies to quantify DAL in older adults are scarce and controversies persist as to whether DAL in- or decreases with age.AimTo enhance the understanding of DAL in older individuals, we examined its relationship with increasing age and selected anthropometric data in a well-characterized sample of US adults.MethodsSecondary data analysis of nationally representative data from the National Health and Nutrition Examination Surveys data (NHANES 2011–2016). The sample included n = 3018 adults aged 60+, which may be extrapolated to represent n = 45,113,471 Americans. DAL was estimated using 4 formulas, including Potential Renal Acid Load (PRAL) and Net Endogenous Acid Production (NEAP).ResultsAll employed DAL scores tended to decline with increasing age. Participants aged 80 years or older yielded the lowest DAL scores. The average US citizen aged 60+ consumed an acidifying diet, yet there were sex-specific differences in the adjusted means for some scores. NEAP was positively correlated with both body mass index (r = 0.26, p < 0.001) and the sagittal abdominal diameter (r = 0.31, p < 0.001) in this nationally representative sample.ConclusionThe previously reported phenomenon of increasing DAL values in older people in non-Western countries may not apply to the US. Our findings may constitute an important step towards a better understanding of DAL in older US adults, and highlight the need for additional population-specific research in the field.

Anthropometric measurements and their association with endothelial function and arterial stiffness of eutrophic individuals and with overweight.

The objective of the study was to assess the association of anthropometric measurements with endothelial function and arterial stiffness of eutrophic individuals and with overweight. A cross-sectional study was carried out with individuals with body mass index (BMI) between 18.5 kg/m2 and < 30 kg/m2, low to intermediate global cardiovascular risk scores, and aged ≥ 18 and < 60 years. We assessed the sociodemographic data, anthropometric variables (body weight, height, circumferences of the waist [WC], neck [NC], hip [HC], sagittal abdominal diameter [SAD], [BMI], waist-to-hip ratio [WHR], and waist-to-height ratio [WHtR]), biochemical parameters (lipid profile and nitric oxide), endothelial function (flow-mediated dilation [FMD], by ultrasound), and arterial stiffness (pulse wave velocity [PWV] and the amplification index [AIx@75] by oscillometry). Thirty-six individuals were included, 18 eutrophic and 18 with overweight, with a mean age of 37.5 ± 10.2 years, mostly at low cardiovascular risk (86.1%), female (80.6%), single (52.8%), employed with formal contracts (44.4%), and with over twelve years of education (88.9%). The PWV presented positive and moderate correlation with the WC (r = 0.584; P = 0.001), WHR (r = 0.513; P = 0.001), and WHtR (r = 0.590; P = 0.001), and positive and low correlation with the NC (r = 0.372; P = 0.013) and SAD (r = 0.356; P = 0.033). Moreover, no anthropometric parameter presented a correlation with the AIx@75 or the FMD percentage in the total sample. Our findings show that in eutrophic individuals and with overweight the WC, WHR, WHtR, SAD, and NC were positively correlated with the PWV but not to the endothelial function in the overall sample. These are hypothesis-generating findings and they should be replicated in other studies.

Your suffering is my stressor: Proinflammatory gene expression rises with spousal distress in middle-aged and older couples

Marital quality shares ties to inflammation-related conditions like cardiovascular disease and diabetes. Lab-based studies implicate hostility during marital conflict as a mechanism via inflammatory reactivity, but little attention has been paid to the inflammatory aftermath of other marital exchanges. A spouse’s emotional distress is an important but overlooked context for middle-aged and older couples, as conflict declines and networks shrink. To examine the links of spousal distress to changes in proinflammatory gene expression, 38 adults ages 40–81 witnessed their spouse relive an upsetting personal memory aloud, rated their mood before and after, and provided blood samples at baseline and twice post-task; they also shared their own upsetting memory and discussed a marital problem in the interim. Those whose spouse disclosed their upsetting memory with greater emotional intensity showed larger elevations in proinflammatory gene expression 30–40 min and 80–90 min after the task. The association replicated for listeners whose negative mood increased more in response to spousal disclosure. Findings were robust to behavior in the other emotional tasks, race, gender, age, alcohol, smoking, comorbidities, and sagittal abdominal diameter. These novel results identify spousal distress as a key marital context that may escalate inflammation-related health risks.

The association of sagittal abdominal diameter with metabolic syndrome risk before and after weight-loss surgery in adolescents.

Metabolic syndrome (MetS) affects ∼10% of U.S. adolescents. Abdominal obesity is the most prevalent component and may indicate MetS risk in adolescents undergoing weight loss surgery. Assess MetS risk/severity and its association with abdominal obesity (measured by sagittal abdominal diameter, SAD) before and after weight loss surgery in adolescents to determine whether SAD predicts MetS risk in this population. Data were collected in the Teen Longitudinal Assessment of Bariatric Surgery (Teen-LABS) study at 5 sites (U.S. children's hospitals) performing weight-loss surgery in adolescents. The current study is a secondary analysis of these data. We examined data collected presurgery through 5 years postsurgery. MetS risk/severity was defined using the MetS severity z score (MetS-z), and MetS prevalence was determined using age-appropriate criteria. Association between SAD and MetS-z was evaluated with an adjusted linear mixed model. Among 228 individuals (75% female, 72% White), mean age 16.5 years and body mass index (BMI) 53 kg/m2, 79% met MetS criteria pre-urgery. MetS-z (1.5) and SAD (32cm) were correlated (r = 0.6, P < .0001) presurgery, and both improved significantly at 6 months, 1, and 5 years postsurgery, remaining highly correlated at each timepoint. SAD predicted MetS-z (β = 0.118; 95% CI, 0.109, 0.127) after adjustment for age, visit, surgery type, and caregiver education. Abdominal obesity is a key MetS risk marker in youth undergoing weight loss surgery. Both SAD and Met-z measures may be useful for MetS risk assessment and tracking postsurgery changes in this population, but more research is needed to identify effective lifestyle interventions targeting abdominal obesity.

P213 High prevalence and risk factors for nonalcoholic fatty liver disease in patients with Crohn's disease

Abstract Background Prevalence of Non-Alcoholic Fatty Liver Disease (NAFLD) is increasing in patients with Inflammatory Bowel Disease (IBD), particularly Crohn's Disease (CD). Despite this, the mechanisms and risk factors of NAFLD in IBD are still poorly understood and controversial. The aim of this study was to assess the prevalence and risk factors for NAFLD in patients with CD. Methods Prospective study conducted among consecutive patients with CD and treated at the Inflammatory Bowel Diseases outpatient clinic at University Hospital between July 2021 and May 2022. Demographic, anthropometric and CD characteristics, food intake, previous and current medications, pre-existing diseases, laboratory tests, plasma levels of trimethylamine oxide (TMAO) data were collected. All participants underwent ultrasound (US) of the upper abdomen for evaluation and classification of NAFLD. Results One hudndred and three patients with a mean age of 45.2 ± 15.0 years, 35.9% (n=37) were male. The prevalence of NAFLD was 40.8% (n=42) and overweight (BMI&amp;gt;25kg/m²) was present in 62.1%. Other associated diseases were present among NAFLD patients: systemic arterial hypertension (SAH) 4.9% (p&amp;lt;0,001), dyslipidemia 11.9% (p=0,040) and diabetes (DM) 19% (p=0,009). There were no statistically significant differences between CD characteristics or activity, previous or current CD treatment and food consumption with NAFLD. The presence of comorbidities such as SAH, DM and dyslipidemia, anthropometric markers such as Body Mass Index (BMI), waist circumference (AC), sagittal abdominal diameter (SAD), laboratory tests such as C-reactive protein (CRP), triglycerides (TG) and Liver enzymes were positively associated with the diagnosis of NAFLD. Plasma levels of TMAO showed no significant association with the presence of NAFLD and with CD activity but correlated with SAD (p 0,047). After adjusting for the multivariate model, only the variables SAH (p 0,046), DM (p 0,017), active CD (p 0,023), overweight (p 0,025) and obesity (p&amp;lt;0,001) remained associated to the presence of NAFLD. Conclusion The prevalence of NAFLD in patients with CD was 40.8%, higher than the global prevalence. The main risk factors for NAFLD in this population were like those in the general population such as systemic arterial hypertension, diabetes, dyslipidemia, visceral fat by sagittal abdominal diameter, overweight and obesity. The characteristics of CD, nutrient intake, and plasma levels of TMAO showed no relation with the presence of NAFLD. Crohn's disease activity by IHB and PCR showed a positive correlation with NAFLD. The high prevalence of NAFLD among CD patients should raise this concern for patient care.

Correlation of Sagittal Abdominal Diameter and Other Anthropometric Parameters with Serum Leptin Levels in Young AdultsA Cross-sectional Study

Introduction: Leptin is secreted in concentrations proportional to body fat mass. The anthropometric parameter among Sagittal Abdominal Diameter (SAD), Body Mass Index (BMI), Hip Circumference (HC), Waist Circumference (WC), Waist-Hip Ratio (WHR), and Waist-Height Ratio (WHtR) that correlates maximally with serum leptin levels could be used preferably to assess adiposity. Aim: The present study aims to correlate serum leptin levels with SAD, BMI, HC, WC, WHR and WHtR in young and healthy North Indian adults. Materials and Methods: The present cross-sectional study was conducted jointly in the Department of Physiology and Biochemistry at the King George’s Medical University, Lucknow, Uttar Pradesh, India from September 2015 to August 2016 and it included apparently healthy individuals, aged 18-25 years, native to North India, after obtaining an informed consent. A convenient sample size of 100 was taken. One investigator took all anthropometric measurements. (SAD, BMI, HC, WC, WHR and WHtR) RayBio human leptin ELISA kit was used for the estimation of leptin level. For statistical analysis, Pearson’s correlation coefficient was used. P&lt;0.05 was considered significant. Results: The study involved 55 males and 45 aged 21.4±1.5 years with BMI 22.7±2.7 kg/m2 , HC 91.5±6.9 cm, WC 81.9±7.9 cm, WHR 0.9±0.1, WHtR 0.50±0.04, SAD 20.8±3.1 cm and serum leptin level 389.6±102.7 pg. Serum leptin level correlated significantly with HC (r=0.23, p=0.02), WC (r=0.29, p=0.003), WHtR (r=0.36, p&lt;0.001), and SAD (r=0.56, p&lt;0.001). A non significant correlation was obtained with BMI (r=0.15, p=0.12) and WHR (r=0.11, p=0.26). Conclusion: SAD is a better predictor of body fat and hence, cardiometabolic health than other anthropometric parameters in the present study, as it correlated most strongly with serum leptin levels.

Normal Fetal Growth Profile at 10-41 Weeks of Gestation - An Update Based on 10225 Normal Singleton Pregnancies and Measurement of the Fetal Parameters Using 3D Ultrasound.

To construct new growth charts and tables for the following fetal growth parameters: biparietal diameter (BPD), occipitofrontal diameter (OFD), head circumference (HC), abdominal transverse diameter (ATD), abdominal sagittal diameter (ASD), abdominal circumference (AC), femur length (Fe), tibia length (Ti), fibula length (Fi), humerus length (Hu), radius length (Ra), and ulna length (Ul). This prospective study was conducted at a level III ultrasound center as a population-based cross-sectional study on 10 225 normal singleton pregnancies with a gestational age between 10 and 41 completed weeks. Gestational age was confirmed in all cases by an ultrasound examination with crown-rump measurement before 10 weeks of gestation. All examinations were performed with 3 D probes. BPD, OFD, ATD, and ASD were measured as outer-to-outer measurements (skin-to-skin) after identifying the exact biometric planes by 3 D multiplanar display. HC was computed using the formula . For AC the approximate elliptical formula AC = (ATD+ASD)/2 × 3.142 was used. Measurements of the limb bones included the entire ossified shaft. Based on a nonlinear regression model for the age-specific mean values, distribution-free reference ranges were calculated for the parameters BPD, OFD, HC, ATD, ASD, AC, Fe, Ti, Fi, Hu, Ra and Ul. The new reference ranges were compared with our reference ranges published in 1996 as well as with different reference charts published by other authors. 3 D ultrasound allows a controlled demonstration of all fetal planes required for exact biometric measurements. The fetal growth profile including the 12 biometric parameters gives a precise overview of normal or abnormal fetal growth.

High-Intensity Interval Training Versus Moderate-Intensity Continuous Training for Improving Physical Health in Elderly Women.

In elderly women, a lack of regular physical exercise may result in faster decreases in general health and functional performance. Although high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) have been effectively applied in young and clinical groups, there is no evidence to support their use in elderly women to achieve health benefits. Thus, the major goal of this study was to investigate how HIIT affected health-related outcomes in elderly women. Twenty-four inactive elderly women agreed to participate in the 16-week HIIT and MICT intervention. Body composition, insulin resistance, blood lipids, functional capacity, cardiorespiratory fitness, and quality of life were all measured before and after the intervention. The number of differences between groups was determined using Cohen's effect sizes, and the pre-post intra-group changes were compared using paired t-tests. Using 2 × 2 ANOVA, the time × group interaction effects between HIIT and MICT were evaluated. Body fat percentage, sagittal abdominal diameter, waist circumference, and hip circumference all were improved significantly in the 2 groups. HIIT substantially improved fasting plasma glucose and cardiorespiratory fitness as compared to the MICT. HIIT improved the lipid profile and functional ability more significantly compared to the MICT group. These findings show that HIIT is a useful exercise for improving elderly women's physical health.