Doppler US measurement of the superior mesenteric artery blood flow in children and adolescents

Eloi, Juliana Cristina; Epifânio, Matias; Spolidoro, José Vicente Noronha; Camargo, Pablo; Krebs, Juliana Mazzaferro; Mizerkowski, Mariana Damian; Baldisserotto, Matteo

doi:10.1007/s00247-012-2484-1

Cited by 8 publications

(6 citation statements)

References 27 publications

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“…Values of SMA BFV were low in all patients when assessed according to the formulas given in the studies by Eloi et al (6) and Van Bel et al (7). PSV values, except in one patient, and RI values were also low according to the normal values given in the study by Okada et al (8) EDV values of all patients were in normal limits.…”

Section: Resultsmentioning

confidence: 77%

“…A literature review revealed that CDUS examination of the SMA has been used to determine Crohn disease activity or intestinal inflammation caused by other illnesses, bowel wall perfusion in preterm neonates to predict developing necrotizing enterocolitis, or in children with small bowel obstruction for the detection of strangulation (8,14,15). In the present study we intended to evaluate SMA blood flow hemodynamics after surgery and found low values of SMA BFV, PSV, and RI when assessed with the cut-off values given in the literature (6)(7)(8). We suggest that decreased blood flow in the SMA in patients with midgut volvulus may be related to congenital abnormality in anatomy such as a shortened mesenteric root and/or decreased intestinal length after resection.…”

Section: Discussionmentioning

confidence: 87%

“…In the present study we intended to evaluate SMA blood flow hemodynamics after surgery and found low values of SMA BFV, PSV, and RI when assessed with the cut-off values given in the literature (6)(7)(8). We suggest that decreased blood flow in the SMA in patients with midgut volvulus may be related to congenital abnormality in anatomy such as a shortened mesenteric root and/or decreased intestinal length after resection.…”

Section: Discussionmentioning

confidence: 99%

“…We measured peak-systolic velocity (PSV), end-diastolic velocity (EDV), blood flow volume (BFV), and resistance index (RI) from spectral analysis of the SMA. Measured SMA BFVs were assessed according to the normal values that were calculated based on the formulas reported in the studies by Eloi et al (6) [SMA blood flow = 256 + 329 × (body surface area) mL/min] and Van Bel et al (7) [SMA BFV = 43 mL/kg/min ± 13]. Body surface areas (BSAs) were calculated as: BSA= 0.024265 × height (cm) 0.3964 × weight (kg) 0.5378 .…”

Section: Methodsmentioning

confidence: 99%

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Assessment of developmental and radiological long-term outcomeof children with surgically treated midgut volvulus

et al. 2017

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Background/aim: The aim is to evaluate the long-term outcome of asymptomatic patients who underwent surgical correction for midgut volvulus. Materials and methods:Seven patients managed surgically for midgut volvulus in the last 3 years were included. Demographic features, symptoms at presentation, diagnoses, surgical procedures, and complications were recorded. Patients were then contacted for followup and evaluation of long-term outcomes. General physical conditions, anthropometric parameters, feeding habits, and defecation histories were evaluated. Laboratory examinations were performed. Color Doppler ultrasonography (CDUS) was performed to evaluate blood flow in the superior mesenteric artery (SMA).Results: In total, seven patients were identified. The median age at admission was 3 days (0-90 days). Mean age at follow-up was 17 ± 2 months. Growth parameters were normal in all cases. Four patients had low levels of ferritin and transferrin saturation. One patient had microcytic anemia. Another patient had low serum zinc level. One patient who had ileal resection had a high level of steatorrhea in stool examination. In CDUS, SMA blood flow volume was low in all cases. Peak-systolic velocity and resistance index were low in all but one case. Conclusion:Despite uneventful postoperative courses, all patients operated on for midgut volvulus showed mild laboratory changes and decreased blood flow in the SMA in long-term follow-up.

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Section: Resultsmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Assessment of developmental and radiological long-term outcomeof children with surgically treated midgut volvulus

et al. 2017

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“…2 However, there has been little literature on pediatric vascular ultrasounds except very few case reports. 3–8 These case reports demonstrate the utility of ultrasounds to evaluate different types of vascular pathologies in pediatric patients including portal vein thrombosis, arterial aneurysm, vascular malformation, and deep vein thrombosis of the extremities; however, even though ultrasonography is used to diagnose the pathology, no literature reports the positive finding rate of the examinations. 9 The purpose of this study is to distinguish whether or not there would be a higher rate of positive findings in the pediatric population in comparison to the adult population.…”

Section: Introductionmentioning

confidence: 99%

In-patient adult and pediatric vascular ultrasound: Distribution and rate of positive findings

Lee

Novak

et al. 2016

Vascular

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Introduction We examined the rate of positive findings and the distribution of vascular ultrasounds in the pediatric and adult population. Prior literature has noted a low rate of positive findings in adult vascular ultrasounds but there is little literature on pediatric vascular ultrasound. Methods We reviewed our vascular duplex database on inpatients less than 18 years old and compared it to the adult inpatient vascular duplex exams from 2005 to 2010. Results The adult patients had more extremity vascular exams while the pediatric patients had more abdominal and renal exams. Moreover, the positive rate of adult lower extremity arterial duplex was significantly higher than the pediatric group ( p = 0.002). Conclusion We had a higher yield of positive findings in the adult cases. We observed a higher proportion of more complex duplex exams in the pediatric cases suggesting that a higher level expertise is needed to perform the pediatric vascular duplexes.

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Influence of Cannulation Site on Carotid Perfusion During Extracorporeal Membrane Oxygenation in a Compliant Human Aortic Model

et al. 2017

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Blood oxygenized by veno-arterial extracorporeal membrane oxygenation (ECMO) can be returned to the aorta (central cannulation) or to peripheral arteries (axillar, femoral). Hemodynamic effects of these cannulation types were analyzed in a mock loop with an aortic model representative of normal anatomy and compliance under physiological pressures and flow rates. Pressures, flow rates, and contribution of ECMO flow to total flow as a measure of oxygen supply were monitored in the carotids. Steady or pulsatile ECMO flow, residual or no cardiac output, and intraaortic balloon pump counterpulsation were tested as independent factors. With residual heart function, central cannulation provided the best oxygenated flow and pressure to the carotid arteries (CA). Axillar cannulation preferentially perfused the right CA at the expense of the left CA. Femoral cannulation provided only lower amounts of oxygenated blood to both CA. Pulsation increased the surplus hemodynamic energy. Counterpulsation reduced flow with femoral cannulation but improved flow and pressure with axillar cannulation. Femoral cannulation failed to provide oxygenated blood to coronary and supraaortic arteries with residual heart function. Central cannulation provided the best hemodynamics and oxygen supply to the brain. With a resting heart but not with an ejecting heart, pulsatile ECMO flow enhanced CA hemodynamics.

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Doppler US measurement of the superior mesenteric artery blood flow in children and adolescents

Abstract: We found that superior mesenteric artery blood flow is significantly lower in children than in adolescents and is associated with body surface area.

Cited by 8 publications

References 27 publications

Assessment of developmental and radiological long-term outcomeof children with surgically treated midgut volvulus

Assessment of developmental and radiological long-term outcomeof children with surgically treated midgut volvulus

In-patient adult and pediatric vascular ultrasound: Distribution and rate of positive findings

Influence of Cannulation Site on Carotid Perfusion During Extracorporeal Membrane Oxygenation in a Compliant Human Aortic Model

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