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1.
Metabolomics ; 20(3): 45, 2024 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-38615312

RESUMEN

INTRODUCTION: Aspalathus linearis (commonly known as rooibos) is endemic to the Cape Floristic Region of South Africa and is a popular herbal drink and skin phytotherapeutic ingredient, with health benefits derived primarily from its unique phenolic content. Several, seemingly habitat-specific ecotypes from the Cederberg (Western Cape) and Northern Cape have morphological, ecological, genetic and biochemical differences. OBJECTIVES AND METHODS: Despite the commercial popularity of the cultivated variety, the uncultivated ecotypes are largely understudied. To address gaps in knowledge about the biochemical constituency, ultra-performance liquid chromatography-mass spectrometry analysis of fifteen populations was performed, enabling high-throughput metabolomic fingerprinting of 50% (v/v) methanolic extracts. Antioxidant screening of selected populations was performed via three assays and antimicrobial activity on two microbial species was assessed. The metabolomic results were corroborated with total phenolic and flavonoid screening of the extracts. RESULTS AND DISCUSSION: Site-specific chemical lineages of rooibos ecotypes were confirmed via multivariate data analyses. Important features identified via PLS-DA disclosed higher relative abundances of certain tentative metabolites (e.g., rutin, aspalathin and apiin) present in the Dobbelaarskop, Blomfontein, Welbedacht and Eselbank sites, in comparison to other locations. Several unknown novel metabolites (e.g., m/z 155.0369, 231.0513, 443.1197, 695.2883) are responsible for metabolomic separation of the populations, four of which showed higher amounts of key metabolites and were thus selected for bioactivity analysis. The Welbedacht and Eselbank site 2 populations consistently displayed higher antioxidant activities, with 2,2-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activities of 679.894 ± 3.427 µmol Trolox/g dry matter and 635.066 ± 5.140 µmol Trolox/g dry matter, respectively, in correlation with a high number of phenolic and flavonoid compounds. The contribution of the individual metabolites to the pharmacological effectiveness of rooibos remains unknown and as such, further structural elucidation and phytopharmacological testing is thus urgently needed.


Asunto(s)
Aspalathus , Antioxidantes , Ecotipo , Metabolómica , Flavonoides , Fenoles
2.
Pediatr Neurosurg ; 2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38684141

RESUMEN

INTRODUCTION: At our institution, revascularization after indirect moyamoya surgery is routinely evaluated using magnetic resonance angiography (MRA) rather than catheter angiography. This study reviews how revascularization can be visualized on axial MRA versus catheter angiography and compares clinical outcomes of surgeries evaluated by routine postoperative MRA versus routine catheter angiography. METHODS: We reviewed the records of all patients treated at our institution who underwent unilateral encephaloduroarteriosynangiosis (EDAS)/pial synangiosis 2004-2021 at 1-21 years of age. Inclusion criteria included undergoing preoperative MRA within 18 months of surgery and postoperative MRA 3 to 30 months after surgery. Clinical outcome measures included postoperative stroke and transient ischemic attacks (TIAs), changes in symptoms (improved, unchanged, worsened), and new postoperative symptoms. Measures were compared between surgeries evaluated by routine postoperative MRA versus routine postoperative angiograms. For each surgery, we determined the ratios of the diameters and areas of the donor and contralateral corresponding vessels and the relative signal intensities of these two vessels on preoperative- and 3-to-30-month postoperative MRA. We did the same for the middle meningeal artery (MMA) ipsilateral to the donor artery and the contralateral MMA. We assessed changes from pre- to post-operation in diameter ratios, area ratios, relative signal intensity, ivy sign, and brain perfusion on arterial spin labeled (ASL) imaging. MRI and MRA measures of revascularization and flow were compared to Matsushima grades in patients who had postoperative catheter angiograms. RESULTS: Fifty-one operations were included. There were no significant differences in rates of strokes, TIAs, changes or new symptoms after surgeries evaluated by routine postoperative MRA versus catheter angiogram. Significant associations existed between greater collateralization on postoperative MRA and greater median increases in preoperative-to-postoperative ratios of donor-vessel-over-contralateral-vessel diameter (p=0.0461) and ipsilateral-MMA-over-contralateral-MMA diameter (p=0.0135). The median increase in the ratio of the donor-vessel-over-corresponding-contralateral-vessel diameters was significantly higher for Matsushima grade A versus B (p=0.036). The median increase in the ratio of the sum of donor-and-ipsilateral-MMA diameters over the sum of the contralateral vessel diameters was significantly higher for improved-versus-unchanged perfusion on ASL imaging (p=0.0074). There was a nonsignificant association between greater postoperative collateralization on MRA and Matsushima grade (p=0.1160) Conclusion: Cerebral revascularization after EDAS/pial synangiosis can be evaluated on axial MRA by comparing the diameter and/or signal intensity of the donor vessel and ipsilateral MMA to those of the corresponding contralateral vessels on postoperative-versus-preoperative MRA. The use of routine postoperative MRA rather than catheter angiography does not appear to negatively affect outcomes.

3.
Ultrasound Obstet Gynecol ; 62(4): 462-470, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37289946

RESUMEN

OBJECTIVE: To investigate whether use of ST analysis of the fetal electrocardiogram (STan) as an adjunct to continuous cardiotocography (CTG) reduces the rate of emergency Cesarean section (EmCS) compared with CTG alone. METHODS: This was a randomized controlled trial of patients with a singleton fetus in cephalic presentation at ≥ 36 weeks' gestation, requiring continuous electronic fetal monitoring during labor at a tertiary maternity hospital in Adelaide, Australia, between January 2018 and July 2021. Participants were randomized to undergo CTG + STan or CTG alone. The calculated sample size was 1818 participants. The primary outcome was EmCS. Secondary outcomes included metabolic acidosis, a composite adverse perinatal outcome, and other maternal and neonatal morbidity and safety outcomes. RESULTS: The present study enrolled 970 women, of whom 967 were included in the primary analysis. EmCS occurred in 107/482 (22.2%) deliveries in the CTG + STan arm and in 107/485 (22.1%) in the CTG arm (adjusted relative risk, 1.02 (95% CI, 0.81-1.27); P = 0.89). There was no difference in the rate of adverse maternal or neonatal outcomes between arms. CONCLUSIONS: The addition of STan as an adjunct to continuous CTG did not reduce the EmCS rate. The smaller-than-anticipated sample size meant that this study was underpowered to detect absolute differences of ≤ 5% and, therefore, this negative finding could be due to a Type-2 error. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Cardiotocografía , Trabajo de Parto , Recién Nacido , Embarazo , Femenino , Humanos , Cesárea , Australia , Parto , Electrocardiografía , Monitoreo Fetal
4.
Pediatr Neurosurg ; 58(2): 105-113, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36809759

RESUMEN

INTRODUCTION: Encephaloduroarteriosynangiosis (EDAS) for moyamoya is predominantly performed using a branch of the superficial temporal artery (STA) as the donor artery. At times, other branches of the external carotid artery are better suited for EDAS than is the STA. There is little information in the literature concerning using the posterior auricular artery (PAA) for EDAS in the pediatric age-group. In this case series, we review our experience using the PAA for EDAS in children and adolescents. CASE PRESENTATIONS: We describe the presentations, imaging, and outcomes of 3 patients in whom the PAA was used for EDAS, as well our surgical technique. There were no complications. All 3 patients were confirmed to have radiologic revascularization from their surgeries. All patients also had improvement of their preoperative symptoms, and no patient has had a stroke postoperatively. CONCLUSION: The PAA is a viable option for use as a donor artery in EDAS for the treatment of moyamoya in children and adolescents.


Asunto(s)
Revascularización Cerebral , Enfermedad de Moyamoya , Accidente Cerebrovascular , Adolescente , Niño , Humanos , Arterias/cirugía , Revascularización Cerebral/métodos , Enfermedad de Moyamoya/diagnóstico por imagen , Enfermedad de Moyamoya/cirugía , Accidente Cerebrovascular/etiología , Resultado del Tratamiento
5.
J Craniofac Surg ; 34(3): 969-975, 2023 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-36939862

RESUMEN

INTRODUCTION: After treating a child with familial sagittal craniosynostosis, clinocephaly, and bilateral parietomastoid/posterior squamosal suture fusion, the authors wondered if major-suture synostosis and clinocephaly were associated with abnormal fusion of minor lateral calvarial sutures. METHODS: The authors reviewed all preoperative volume-rendered head computed tomography reconstructions performed for craniosynostosis at their institution from 2010 through 2014 and determined whether the sphenoparietal, squamosal, and parietomastoid sutures were open, partially fused, or fused. The authors determined whether any sutures were abnormally fused based upon a previous study from their center, in which abnormal fusion was defined as either 1 of 3 abnormal fusion patterns or abnormally-early fusion. The authors then determined the rate of abnormal fusion of these sutures and whether abnormal fusion was associated with (1) major-suture craniosynostosis, (2) type of craniosynostosis (sutures involved; single-suture versus multisuture; syndromic versus nonsyndromic), and (3) clinocephaly. RESULTS: In 97 included children, minor lateral sutures were abnormally fused in 8, or 8.2%, which was significantly higher than in children without craniosynostosis from our earlier study. Abnormal minor lateral suture fusion was not associated with the type of single-suture synostosis or with multisuture synostosis but was associated with syndromic synostosis. Four of 8 children with abnormal minor lateral suture fusion had multisuture synostosis and 6 had syndromic synostosis. Lateral sutures were abnormally fused in 1 of 4 subjects with clinocephaly, which was not significant. CONCLUSION: Abnormal minor lateral calvarial suture fusion is significantly associated with major-suture craniosynostosis, especially syndromic synostosis.


Asunto(s)
Craneosinostosis , Procedimientos de Cirugía Plástica , Niño , Humanos , Lactante , Craneosinostosis/diagnóstico por imagen , Craneosinostosis/cirugía , Suturas Craneales/diagnóstico por imagen , Suturas Craneales/cirugía , Tomografía Computarizada por Rayos X , Suturas
6.
Br J Dermatol ; 186(2): 341-351, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34477218

RESUMEN

BACKGROUND: In children, psoriasis can be challenging to diagnose. Difficulties arise from differences in the clinical presentation compared with adults. OBJECTIVES: To test the diagnostic accuracy of previously agreed consensus criteria and to develop a shortlist of the best predictive diagnostic criteria for childhood psoriasis. METHODS: A case-control diagnostic accuracy study in 12 UK dermatology departments (2017-2019) assessed 18 clinical criteria using blinded trained investigators. Children (< 18 years) with dermatologist-diagnosed psoriasis (cases, N = 170) or a different scaly inflammatory rash (controls, N = 160) were recruited. The best predictive criteria were identified using backward logistic regression, and internal validation was conducted using bootstrapping. RESULTS: The sensitivity of the consensus-agreed criteria and consensus scoring algorithm was 84·6%, the specificity was 65·1% and the area under the curve (AUC) was 0·75. The seven diagnostic criteria that performed best were: (i) scale and erythema in the scalp involving the hairline, (ii) scaly erythema inside the external auditory meatus, (iii) persistent well-demarcated erythematous rash anywhere on the body, (iv) persistent erythema in the umbilicus, (v) scaly erythematous plaques on the extensor surfaces of the elbows and/or knees, (vi) well-demarcated erythematous rash in the napkin area involving the crural fold and (vii) family history of psoriasis. The sensitivity of the best predictive model was 76·8%, with specificity 72·7% and AUC 0·84. The c-statistic optimism-adjusted shrinkage factor was 0·012. CONCLUSIONS: This study provides examination- and history-based data on the clinical features of psoriasis in children and proposes seven diagnostic criteria with good discriminatory ability in secondary-care patients. External validation is now needed.


Asunto(s)
Psoriasis , Adulto , Área Bajo la Curva , Estudios de Casos y Controles , Niño , Humanos , Anamnesis , Psoriasis/diagnóstico , Reino Unido
7.
BMC Med ; 19(1): 227, 2021 09 28.
Artículo en Inglés | MEDLINE | ID: mdl-34579718

RESUMEN

BACKGROUND: Multimorbidity is prevalent for people with myocardial infarction (MI), yet previous studies investigated single-health conditions in isolation. We identified patterns of multimorbidity in MI survivors and their associations with changes in HRQoL. METHODS: In this national longitudinal cohort study, we analysed data from 9566 admissions with MI from 77 National Health Service hospitals in England between 2011 and 2015. HRQoL was measured using EuroQol 5 dimension (EQ5D) instrument and visual analogue scale (EQVAS) at hospitalisation, 6, and 12 months following MI. Latent class analysis (LCA) of pre-existing long-term health conditions at baseline was used to identify clusters of multimorbidity and associations with changes in HRQoL quantified using mixed effects regression analysis. RESULTS: Of 9566 admissions with MI (mean age of 64.1 years [SD 11.9], 7154 [75%] men), over half (5119 [53.5%] had multimorbidities. LCA identified 3 multimorbidity clusters which were severe multimorbidity (591; 6.5%) with low HRQoL at baseline (EQVAS 59.39 and EQ5D 0.62) which did not improve significantly at 6 months (EQVAS 59.92, EQ5D 0.60); moderate multimorbidity (4301; 47.6%) with medium HRQoL at baseline (EQVAS 63.08, EQ5D 0.71) and who improved at 6 months (EQVAS 71.38, EQ5D 0.76); and mild multimorbidity (4147, 45.9%) at baseline (EQVAS 64.57, EQ5D 0.75) and improved at 6 months (EQVAS 76.39, EQ5D 0.82). Patients in the severe and moderate groups were more likely to be older, women, and presented with NSTEMI. Compared with the mild group, increased multimorbidity was associated with lower EQ-VAS scores (adjusted coefficient: -5.12 [95% CI -7.04 to -3.19] and -0.98 [-1.93 to -0.04] for severe and moderate multimorbidity, respectively. The severe class was more likely than the mild class to report problems in mobility, OR 9.62 (95% confidence interval: 6.44 to 14.36), self-care 7.87 (4.78 to 12.97), activities 2.41 (1.79 to 3.26), pain 2.04 (1.50 to 2.77), and anxiety/depression 1.97 (1.42 to 2.74). CONCLUSIONS: Among MI survivors, multimorbidity clustered into three distinct patterns and was inversely associated with HRQoL. The identified multimorbidity patterns and HRQoL domains that are mostly affected may help to identify patients at risk of poor HRQoL for which clinical interventions could be beneficial to improve the HRQoL of MI survivors. TRIAL REGISTRATION: ClinicalTrials.gov NCT01808027 and NCT01819103.


Asunto(s)
Infarto del Miocardio , Calidad de Vida , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Multimorbilidad , Infarto del Miocardio/epidemiología , Medición de Resultados Informados por el Paciente , Medicina Estatal , Reino Unido/epidemiología
8.
J Craniofac Surg ; 32(8): 2744-2748, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34238877

RESUMEN

ABSTRACT: Some cranial defects resulting from sagittal craniectomy for craniosynostosis never completely close and require cranioplasty. This study evaluates the results of 2 methods to minimize such defects: (1) trapezoidal craniectomy that is narrower posteriorly (2) vascularized pericranial flap that is sewn to the dura under a rectangular craniectomy.Children who underwent primary open sagittal craniectomy with biparietal morcellation (with/without frontal cranioplasty) for single-suture nonsyndromic sagittal synostosis from 2013 through 2018 were included. Children were excluded if there was a dural tear, if they had no 1-year follow-up, or if they had unmeasured and/or uncounted skull defects. Surgeries were divided into (1) standard craniectomy, (2) trapezoidal craniectomy, or (3) craniectomy with pericranial flap. Differences in percentage of children with defects and mean total defect area 1 year postsurgery were compared between the 3 groups.We reviewed 148 cases. After exclusions, 34 of 53 children (64%) who underwent standard craniectomy, 6 of 17 children (35%) who had pericranial flaps, and 5 of 11 children (46%) who underwent trapezoidal craniectomy had defects 1 year postsurgery. The percentage of children with defects (P = 0.0364) but not the defect area was significantly higher in the standard craniectomy than in the pericranial flap group. The percentage of subjects with defects was not significantly different between the standard and the trapezoidal craniectomy groups.Sewing a vascularized pericranial flap to the dura at the craniectomy site may protect against persistent bony defects after sagittal craniectomy for craniosynostosis. Longer follow-up is needed to determine if this technique leads to lower rates of cranioplasty.


Asunto(s)
Craneosinostosis , Procedimientos de Cirugía Plástica , Niño , Craneosinostosis/cirugía , Craneotomía , Humanos , Estudios Retrospectivos , Cráneo/cirugía , Colgajos Quirúrgicos
9.
BJOG ; 125(9): 1086-1095, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29211328

RESUMEN

BACKGROUND: It has been suggested that cervical ripening with a balloon catheter for labour induction can be done in an outpatient setting in low-risk pregnancies. Introduction of such an approach needs to be accompanied with monitoring of potential complications. Therefore the existence and frequency of any associated adverse event during cervical ripening needs to be established. OBJECTIVE: To assess the complication rate during cervical ripening with balloon induction. SEARCH STRATEGY: We searched Embase, Medline, Cochrane Collaboration and CINAHL using keywords 'induction of labour', 'cervical ripening', 'balloon catheter', 'Foley balloon', 'transcervical balloon'. SELECTION CRITERIA: We included randomized controlled trials and cohort studies containing original data on fetal and maternal morbidity in pregnant women during cervical ripening with a balloon catheter. Only articles for which authors were able to give data for this exact time frame were included. DATA COLLECTION AND ANALYSIS: Two reviewers assessed independently the eligibility of included studies, extracted data and performed a quality assessment. A meta-analysis was performed to calculate the estimated prevalence of the adverse events. MAIN RESULTS: In total 26 studies were included reporting on 8292 women. The estimated prevalence of the analysed adverse events in the random effects model was between 0.0 and 0.26%, of which 'pain/discomfort' had the highest prevalence. CONCLUSION: This study suggests the risk of adverse events during the period between insertion and expulsion of a balloon catheter in cervical ripening to be low. These data facilitate further evaluation and implementation of this procedure in an outpatient setting for low-risk pregnancies. TWEETABLE ABSTRACT: Balloon catheter for cervical ripening appears to be safe enough to evaluate its use in the outpatient setting.


Asunto(s)
Cateterismo/efectos adversos , Catéteres/efectos adversos , Maduración Cervical , Trabajo de Parto Inducido/instrumentación , Complicaciones del Trabajo de Parto/etiología , Adulto , Atención Ambulatoria , Cateterismo/instrumentación , Cuello del Útero , Estudios de Cohortes , Femenino , Humanos , Trabajo de Parto Inducido/efectos adversos , Trabajo de Parto Inducido/métodos , Embarazo , Ensayos Clínicos Controlados Aleatorios como Asunto
10.
BMC Health Serv Res ; 18(1): 119, 2018 02 17.
Artículo en Inglés | MEDLINE | ID: mdl-29454359

RESUMEN

BACKGROUND: The present study examines the introduction of an innovation in intrapartum foetal monitoring practice in Australia. ST-Analysis (STan) is a technology that adds information to conventional fetal monitoring (cardiotocography) during labour, with the aim of reducing unnecessary obstetric intervention. Adoption of this technology has been controversial amongst obstetricians and midwives, particularly as its use necessitates a more invasive means of monitoring (a scalp clip), compared to external monitoring from cardiotocography alone. If adoption of this technology is going to be successful, then understanding staff opinions about the implementation of STan in an Australian setting is an important issue for maternity care providers and policy makers. METHODS: Using a maximum variation purposive sampling method, 18 interviews were conducted with 10 midwives and 8 doctors from the Women's and Children's Hospital, South Australia to explore views about the introduction of the new technology. The data were analysed using Framework Analysis. RESULTS: Midwives and doctors indicated four important areas of consideration when introducing STan: 1) philosophy of care; 2) the implementation process including training and education; 3) the existence of research evidence; and 4) attitudes towards the new technology. Views were expressed about the management of change process, the fit of the new technology within the current models of care, the need for ongoing training and the importance of having local evidence. CONCLUSIONS: These findings, coupled with the general literature about introducing innovation and change, can be used by other centres looking to introduce STan technology.


Asunto(s)
Actitud del Personal de Salud , Difusión de Innovaciones , Monitoreo Fetal , Enfermeras Obstetrices/psicología , Médicos/psicología , Adulto , Australia , Femenino , Hospitales , Humanos , Persona de Mediana Edad , Embarazo , Investigación Cualitativa , Australia del Sur
11.
J Acoust Soc Am ; 143(4): EL298, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29716258

RESUMEN

Humpback whales (Megaptera novaeangliae) are well known for their complex song which is culturally transmitted and produced by males. However, the function of singing behavior remains poorly understood. Song was observed from 57 min of acoustic recording in the presence of feeding humpback whales aggregated in the near-shore waters on the west coast of South Africa. The structural organization of the song components, lack of overlap between song units, and consistency in relative received level suggest the song was produced by one "singer." The unusual timing and location of song production adds further evidence of plasticity in song production.


Asunto(s)
Acústica , Conducta Alimentaria/fisiología , Yubarta/fisiología , Vocalización Animal/fisiología , Animales , Estaciones del Año , Espectrografía del Sonido , Sudáfrica
12.
Neurobiol Dis ; 106: 23-34, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28619545

RESUMEN

Mild traumatic brain injury (mTBI) caused by exposure to high explosives has been called the "signature injury" of the wars in Iraq and Afghanistan. There is a wide array of chronic neurological and behavioral symptoms associated with blast-induced mTBI. However, the underlying mechanisms are not well understood. Here we used a battlefield-relevant mouse model of blast-induced mTBI and in vivo fast-scan cyclic voltammetry (FSCV) to investigate whether the mesolimbic dopamine system contributes to the mechanisms underlying blast-induced behavioral dysfunction. In mice, blast exposure increased novelty seeking, a behavior closely associated with disinhibition and risk for subsequent maladaptive behaviors. In keeping with this, we found that veterans with blast-related mTBI reported greater disinhibition and risk taking on the Frontal Systems Behavior Scale (FrSBe). In addition, in mice we report that blast exposure causes potentiation of evoked phasic dopamine release in the nucleus accumbens. Taken together these findings suggest that blast-induced changes in the dopaminergic system may mediate aspects of the complex array of behavioral dysfunctions reported in blast-exposed veterans.


Asunto(s)
Traumatismos por Explosión/metabolismo , Traumatismos por Explosión/psicología , Conmoción Encefálica/metabolismo , Conmoción Encefálica/psicología , Dopamina/metabolismo , Asunción de Riesgos , Adulto , Animales , Conmoción Encefálica/etiología , Modelos Animales de Enfermedad , Conducta Exploratoria/fisiología , Humanos , Inhibición Psicológica , Sistema Límbico/metabolismo , Masculino , Ratones Endogámicos C57BL , Persona de Mediana Edad , Actividad Motora/fisiología , Pruebas Neuropsicológicas , Núcleo Accumbens/metabolismo , Triazinas , Heridas Relacionadas con la Guerra/metabolismo , Heridas Relacionadas con la Guerra/psicología , Adulto Joven
13.
Childs Nerv Syst ; 33(1): 69-89, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27497702

RESUMEN

INTRODUCTION: The most commonly used classification system for caudal appendages (aka human tails) dates from the 1980s and classifies appendages (tails) as either true tails or pseudotails. Advances in neuroimaging since the 1980s, however, as well as an ever-increasing number of reported cases, have made this system outdated. Sacrococcygeal eversion is a condition in which the distal sacral and coccygeal vertebrae are curved in a retroverted rather than anteverted direction. It can give rise to one type of caudal appendage. Sacrococcygeal eversion has never been associated with spinal cord tethering in any previously published reports. METHODS: We reviewed all cases of caudal appendage encountered by pediatric neurosurgeons at Children's Hospital Colorado since 2000 in which the appendage would be classified as a true tail by the most commonly used system mentioned above. We also reviewed cases of sacrococcygeal eversion encountered since 2000 by the same group of pediatric neurosurgeons. We searched the hospital electronic medical record system for additional appendages using the terms "caudal appendage" and "persistent human tail." RESULTS: We found 9 "true" tails (as classified by the most commonly used system). All 9 were associated with tethering or possible tethering of the spinal cord and 6 were associated with a low-lying conus medullaris. There were 8 cases of sacrococcygeal eversion, including 2 associated with Apert or Pfeiffer syndrome and fibroblast growth factor receptor 2 (FGFR2) mutations; these have previously been reported. There was a single case of sacrococcygeal eversion associated with Goldenhar or Turner syndrome; the former was associated with a potentially tethering lesion. Four cases of sacrococcygeal eversion not associated with any known syndrome were also found; two of these were associated with tethering or potentially tethering lesions. CONCLUSIONS: Most so-called true tails are likely cutaneous markers for spinal dysraphism and spinal cord tethering and are not remnants of the embryonic human tail. Sacrococcygeal eversion can be associated with spinal cord tethering. Based on our cases, and on review of the literature, we devised a five-category classification system for caudal appendages: (1) soft-tissue caudal appendages, (2) bony caudal appendages, (3) bony caudal prominences, (4) true tails, and (5) "other" caudal appendages.


Asunto(s)
Defectos del Tubo Neural/patología , Región Sacrococcígea/anomalías , Región Sacrococcígea/patología , Femenino , Humanos , Recién Nacido , Masculino
14.
Pediatr Neurosurg ; 52(3): 195-204, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28380489

RESUMEN

Occurrence of moyamoya syndrome in a patient with Smith-Magenis syndrome (SMS) has previously been reported once in a 10-year-old Asian female. We report a second case of moyamoya in a patient with SMS, in a now 25-year-old Asian female diagnosed with both conditions as a child. In addition to describing her medical and surgical history, we provide a detailed report of her omental transposition, in which the omental circulation was anastomosed to the superior thyroid artery and external jugular vein. To our knowledge, this is the first report of omental transposition for moyamoya in which omental vessels are anastomosed to vessels in the neck, as well as the second report of moyamoya in a patient with SMS.


Asunto(s)
Enfermedad de Moyamoya/diagnóstico , Enfermedad de Moyamoya/cirugía , Procedimientos Neuroquirúrgicos , Síndrome de Smith-Magenis/genética , Adulto , Pueblo Asiatico , Angiografía Cerebral , Revascularización Cerebral/métodos , Femenino , Arteria Gastroepiploica/cirugía , Humanos , Discapacidad Intelectual , Imagen por Resonancia Magnética , Enfermedad de Moyamoya/diagnóstico por imagen
16.
Br J Cancer ; 112 Suppl 1: S92-107, 2015 Mar 31.
Artículo en Inglés | MEDLINE | ID: mdl-25734382

RESUMEN

BACKGROUND: It is unclear whether more timely cancer diagnosis brings favourable outcomes, with much of the previous evidence, in some cancers, being equivocal. We set out to determine whether there is an association between time to diagnosis, treatment and clinical outcomes, across all cancers for symptomatic presentations. METHODS: Systematic review of the literature and narrative synthesis. RESULTS: We included 177 articles reporting 209 studies. These studies varied in study design, the time intervals assessed and the outcomes reported. Study quality was variable, with a small number of higher-quality studies. Heterogeneity precluded definitive findings. The cancers with more reports of an association between shorter times to diagnosis and more favourable outcomes were breast, colorectal, head and neck, testicular and melanoma. CONCLUSIONS: This is the first review encompassing many cancer types, and we have demonstrated those cancers in which more evidence of an association between shorter times to diagnosis and more favourable outcomes exists, and where it is lacking. We believe that it is reasonable to assume that efforts to expedite the diagnosis of symptomatic cancer are likely to have benefits for patients in terms of improved survival, earlier-stage diagnosis and improved quality of life, although these benefits vary between cancers.


Asunto(s)
Diagnóstico Tardío/estadística & datos numéricos , Neoplasias , Tiempo de Tratamiento/estadística & datos numéricos , Humanos , Neoplasias/diagnóstico , Neoplasias/terapia , Pronóstico
17.
BJOG ; 122(1): 94-104, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24824157

RESUMEN

OBJECTIVE: To compare clinical outcomes from outpatient with inpatient cervical prostaglandin E2 ripening for low risk labour induction. DESIGN: Randomised controlled trial. SETTING: Two tertiary hospitals in Adelaide, Australia. POPULATION: Women with uncomplicated term pregnancies, scheduled for induction of labour for reasons of post-dates or for social reasons. METHODS: Eight hundred and twenty-seven women were randomised at induction decision to an outpatient or inpatient group. All women had CTG monitoring before and after vaginal PgE2 administration. The inpatient women were admitted and the outpatient group was discharged home overnight with instructions to return if labour established or rupture of membranes occurred. Next morning, outpatient women were admitted for rupture of membranes or further ripening. After membrane rupture, both groups received routine care. MAIN OUTCOME MEASURES: Oxytocin use, maternal and fetal outcomes, and whether planned outpatient management was achievable. RESULTS: There were no significant differences in oxytocin use (2.5% difference, CI-4.3 to 9.4), caesarean sections (-0.59% difference, CI-6.3 to 5.1), epidural use (1.5% difference, CI-5.1 to 8.2), vaginal delivery within 24 hours (-8.2% difference, CI-17.6 to 1.3) or labour complications. More than half of the randomised women did not receive the intervention as they laboured spontaneously, or did not require ripening. The post-hoc analysis of women who received ripening also indicated no statistically significant differences in the patterns or results, with the exception of outpatient women having a longer mean length of active labour (mean difference 66 minutes, CI 4-128 minutes). Outpatient women who received ripening were diagnosed more frequently with non-reassuring CTG monitoring and hyperstimulation, with less than half of the women going home and remaining home overnight. CONCLUSIONS: This study demonstrated no clinical advantage or disadvantage in prostaglandin E2 outpatient cervical ripening. Uterine stimulation following prostaglandins may preclude a woman from going home or remaining at home overnight and may not be the best agent for outpatient ripening.


Asunto(s)
Atención Ambulatoria/métodos , Maduración Cervical , Parto Obstétrico/estadística & datos numéricos , Dinoprostona , Hospitalización , Trabajo de Parto Inducido/métodos , Oxitócicos , Administración Intravaginal , Adulto , Anestesia Epidural/estadística & datos numéricos , Anestesia Obstétrica/estadística & datos numéricos , Cesárea/estadística & datos numéricos , Femenino , Humanos , Trabajo de Parto , Complicaciones del Trabajo de Parto/epidemiología , Oxitocina , Embarazo , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
18.
Pediatr Neurosurg ; 50(6): 321-4, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26488394

RESUMEN

This series reports 2 pediatric cases of calvarial cavernous hemangioma (cavernoma, cavernous malformation) treated surgically at Children's Hospital Colorado between 2008 and 2010. Both cases presented as painless bony masses which enlarged over time. Both patients underwent surgical resection without complication and have remained recurrence free since surgery. Because so few cases have been reported among pediatric populations, little is known regarding the epidemiology and prognosis of calvarial cavernous hemangiomas in children. These cases represent interesting additions to the small body of literature on these rare tumors.


Asunto(s)
Hemangioma Cavernoso/cirugía , Neoplasias Craneales/cirugía , Niño , Femenino , Hemangioma Cavernoso/diagnóstico por imagen , Humanos , Lactante , Radiografía , Neoplasias Craneales/diagnóstico por imagen
19.
J Neurosurg Pediatr ; : 1-8, 2024 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-38728754

RESUMEN

OBJECTIVE: As many as 5% of normocephalic children may have a prematurely fused sagittal suture, yet the clinical significance and best course of management of this finding remain unclear. Providers in the Synostosis Research Group were surveyed to create a multicenter consensus on an optimal treatment and monitoring algorithm for this condition. METHODS: A four-round modified Delphi method was utilized. The first two rounds consisted of anonymous surveys distributed to 10 neurosurgeons and 9 plastic surgeons with expertise in craniosynostosis across 9 institutions, and presented 3 patients (aged 3 years, 2 years, and 2 months) with incidentally discovered fused sagittal sutures, normal cephalic indices, and no parietal dysmorphology. Surgeons were queried about their preferred term for this entity and how best to manage these patients. Results were synthesized to create a treatment algorithm. The third and fourth feedback rounds consisted of open discussion of the algorithm until no further concerns arose. RESULTS: Most surgeons preferred the term "premature fusion of the sagittal suture" (93%). At the conclusion of the final round, all surgeons agreed to not operate on the 3- and 2-year-old patients unless symptoms of intracranial hypertension or papilledema were present. In contrast, 50% preferred to operate on the 2-month-old. However, all agreed to utilize shared decision-making, taking into account any concerns about future head shape and neurodevelopment. Panelists agreed that patients over 18 months of age without signs or symptoms suggesting elevated intracranial pressure (ICP) should not undergo surgical treatment. CONCLUSIONS: Through the Delphi method, a consensus regarding management of premature fusion of the sagittal suture was obtained from a panel of North American craniofacial surgeons. Without signs or symptoms of ICP elevation, surgery is not recommended in patients over 18 months of age. However, for children younger than 18 months, surgery should be discussed with caregivers using a shared decision-making process.

20.
Ophthalmology ; 120(4): 844-51, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23332590

RESUMEN

OBJECTIVE: To develop a clinical classification system for age-related macular degeneration (AMD). DESIGN: Evidence-based investigation, using a modified Delphi process. PARTICIPANTS: Twenty-six AMD experts, 1 neuro-ophthalmologist, 2 committee chairmen, and 1 methodologist. METHODS: Each committee member completed an online assessment of statements summarizing current AMD classification criteria, indicating agreement or disagreement with each statement on a 9-step scale. The group met, reviewed the survey results, discussed the important components of a clinical classification system, and defined new data analyses needed to refine a classification system. After the meeting, additional data analyses from large studies were provided to the committee to provide risk estimates related to the presence of various AMD lesions. MAIN OUTCOME MEASURES: Delphi review of the 9-item set of statements resulting from the meeting. RESULTS: Consensus was achieved in generating a basic clinical classification system based on fundus lesions assessed within 2 disc diameters of the fovea in persons older than 55 years. The committee agreed that a single term, age-related macular degeneration, should be used for the disease. Persons with no visible drusen or pigmentary abnormalities should be considered to have no signs of AMD. Persons with small drusen (<63 µm), also termed drupelets, should be considered to have normal aging changes with no clinically relevant increased risk of late AMD developing. Persons with medium drusen (≥ 63-<125 µm), but without pigmentary abnormalities thought to be related to AMD, should be considered to have early AMD. Persons with large drusen or with pigmentary abnormalities associated with at least medium drusen should be considered to have intermediate AMD. Persons with lesions associated with neovascular AMD or geographic atrophy should be considered to have late AMD. Five-year risks of progressing to late AMD are estimated to increase approximately 100 fold, ranging from a 0.5% 5-year risk for normal aging changes to a 50% risk for the highest intermediate AMD risk group. CONCLUSIONS: The proposed basic clinical classification scale seems to be of value in predicting the risk of late AMD. Incorporating consistent nomenclature into the practice patterns of all eye care providers may improve communication and patient care.


Asunto(s)
Degeneración Macular/clasificación , Retina/patología , Angiografía con Fluoresceína , Fondo de Ojo , Humanos , Degeneración Macular/diagnóstico , Fotograbar , Índice de Severidad de la Enfermedad
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