Geometric method for measuring body surface area: A height-weight formula validated in infants, children, and adults

Haycock, G B; Schwartz, George J.; Wisotsky, David H.

doi:10.1016/s0022-3476(78)80601-5

Cited by 1,504 publications

(893 citation statements)

References 9 publications

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“…The higher LVM in adults could be attributed to higher blood pressures in adults who were born preterm than in those born at term,4 whereas blood pressure differences in our cohort were small or nonexistent. Infants,19 children,7 and adolescents8 born preterm have—as in our cohort—been found to exhibit similar or even lower LVM than peers born at term, also in the presence of elevated blood pressure 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20…”

Section: Discussionsupporting

confidence: 64%

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The Preterm Heart in Childhood: Left Ventricular Structure, Geometry, and Function Assessed by Echocardiography in 6‐Year‐Old Survivors of Periviable Births

Mohlkert

Hallberg

Broberg

et al. 2018

JAHA

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BackgroundPreterm birth has been associated with increased risk of cardiovascular morbidity in adult life. We evaluated whether preterm birth is associated with deviating cardiac structure and function before school start.Methods and ResultsIn total, 176 children aged 6 years and born extremely preterm (EXPT; gestational age of 22–26 weeks) and 134 children born at term (control [CTRL]) were studied. We used echocardiography to assess left heart dimensions, geometry, and functions. Recording and off‐line analyses of echocardiographic images were performed by operators blinded to group belonging. Body size, blood pressure, and heart rate were also measured. Rates of family history of cardiovascular disease and sex distribution were similar in the EXPT and CTRL groups. Heart rate and systolic blood pressure did not differ, whereas diastolic blood pressure was slightly higher in EXPT than CTRL participants. After adjusting for body surface area, left ventricular length, width, and aortic valve annulus diameter were 3% to 5% smaller in EXPT than CTRL participants. Left ventricular longitudinal shortening and systolic tissue velocity were 7% to 11% lower, and transversal shortening fraction was 6% higher in EXPT than CTRL participants. The EXPT group also exhibited lower atrial emptying velocities than the CTRL group. Sex, fetal growth restriction, or a patent ductus arteriosus in the neonatal period did not contribute to cardiac dimensions or performance.ConclusionsSix‐year‐old children born extremely preterm exhibit a unique cardiac phenotype characterized by smaller left ventricles with altered systolic and diastolic functions than same‐aged children born at term.

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Section: Discussionsupporting

confidence: 64%

“…At arrival, height, weight, and head and waist circumferences were measured, and body mass index and body surface area (BSA) were calculated 14. A validated oscillometric device, the Omron HEM 907 (Omron Healthcare), was used to measure heart rate and systolic and diastolic blood pressures.…”

Section: Methodsmentioning

confidence: 99%

The Preterm Heart in Childhood: Left Ventricular Structure, Geometry, and Function Assessed by Echocardiography in 6‐Year‐Old Survivors of Periviable Births

Mohlkert

Hallberg

Broberg

et al. 2018

JAHA

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“…CO 2 production was assumed to be 300 mmol per square metre of body surface per hour. Body surface area was calculated by the weight±height formula of Haycock et al 24 The results of the 13 CO 2 breath test were expressed as the percentage of 13 CO 2 excreted per hour of the initially given 13 C dose as a function of time. These 13 CO 2 excretion curves were further used to calculate gastric emptying parameters.…”

Section: Gastric Emptyingmentioning

confidence: 99%

Effects of a new motilide, ABT‐229, on gastric emptying and postprandial antroduodenal motility in healthy volunteers

Verhagen

Samsom

Maes³

et al. 1997

Aliment Pharmacol Ther

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Since 1984 many studies have described the effects of the macrolide antibiotic erythromycin on gastrointestinal motility. 1±3 Erythromycin was subsequently shown to be an agonist of the motilin receptor. 4 Motilin is a peptide gut hormone, which is produced in the duodenum and plays a role in the regulation of upper gastrointestinal motility. 5 In healthy humans, erythromycin induces contractions of the gastric antrum, enhances antropyloroduodenal co-ordination, induces antral phase III activity and enhances the tone of the gastric fundus. 6±12 In patients with diabetic or postvagotomy gastroparesis, erythromycin stimulates antral motility and normalizes gastric emptying. 3, 13±20 However, a major disadvantage of the use of erythromycin as a prokinetic drug is its antibacterial activity and the risk of inducing a resistant bacterial strain. Therefore, new erythromycin analogues have been developed, so-called motilides, which lack antibiotic activity. One of these, ABT-229 (8,9-anhydro-4¢¢-deoxy-3¢-N-desmethyl-3¢-N-ethylerythromycin B 6,9-hemiacetal), has a relatively high bioavailability after oral administration and strong prokinetic effects in vitro. 21 This study was designed to investigate the effects of two single oral doses (4 mg, 16 mg) of ABT-229 on the SUMMARY Background: ABT-229 is a recently developed derivative of erythromycin, devoid of antibiotic activity. We studied the effect of ABT-229 on gastric emptying and postprandial antroduodenal motility in healthy volunteers. Methods: Placebo, 4 and 16 mg ABT-229 were given as a single oral dose to nine healthy volunteers, in a randomized, 3-period crossover design. A solid meal (250 kcal) was given twice, 45 min after drug ingestion and 4 h later. Gastric emptying of each meal was studied using the 13 C-octanoic breath test. Antroduodenal motility was recorded during the total 9-h period.

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“…Using the body surface area determined using the method described by Haycock et al, 12 z scores for the aortic sinus of Valsalva and ascending aorta measurements available for each subject then were calculated using the regression equations by Warren et al 13 For the purposes of this study, AoD was described as mild for z scores ≥2 but <4, moderate for z scores ≥4 but <6, and severe for z scores ≥6.…”

Section: Discussionmentioning

confidence: 99%

Aortic dilation, genetic testing, and associated diagnoses

Zárate

Sellars

Lepard

et al. 2016

Genetics in Medicine

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Geometric method for measuring body surface area: A height-weight formula validated in infants, children, and adults

Cited by 1,504 publications

References 9 publications

The Preterm Heart in Childhood: Left Ventricular Structure, Geometry, and Function Assessed by Echocardiography in 6‐Year‐Old Survivors of Periviable Births

The Preterm Heart in Childhood: Left Ventricular Structure, Geometry, and Function Assessed by Echocardiography in 6‐Year‐Old Survivors of Periviable Births

Effects of a new motilide, ABT‐229, on gastric emptying and postprandial antroduodenal motility in healthy volunteers

Aortic dilation, genetic testing, and associated diagnoses

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