RESUMEN
Cenani Lenz syndrome is a rare autosomal recessive disorder associated with variable degree of limb malformations, dysmorphism, and renal agenesis. It is caused due to pathogenic variants in the LRP4 gene, which plays an important role in limb and renal development. Mutations in the APC gene have also been occasionally associated with CLS. The phenotypic spectrum ranges from mild to very severe perinatal lethal type depending on the type of variant. We report a pathogenic variant, c.2710 del T (p.Trp904GlyfsTer5) in theLRP4 gene, in a fetus with lethal Cenani Lenz syndrome with antenatal presentation of tetraphocomelia and symmetrical involvement of hands and feet.
Asunto(s)
Anomalías Congénitas/genética , Enfermedades Renales/congénito , Riñón/anomalías , Proteínas Relacionadas con Receptor de LDL/genética , Deformidades Congénitas de las Extremidades/genética , Sindactilia/genética , Feto Abortado/patología , Proteína de la Poliposis Adenomatosa del Colon/genética , Anomalías Congénitas/mortalidad , Anomalías Congénitas/patología , Femenino , Genes Letales/genética , Predisposición Genética a la Enfermedad , Homocigoto , Humanos , Islas del Oceano Índico/epidemiología , Riñón/patología , Enfermedades Renales/genética , Enfermedades Renales/mortalidad , Enfermedades Renales/patología , Deformidades Congénitas de las Extremidades/mortalidad , Deformidades Congénitas de las Extremidades/patología , Masculino , Mutación/genética , Linaje , Fenotipo , Embarazo , Sindactilia/mortalidad , Sindactilia/patologíaRESUMEN
Neu-Laxova syndrome (NLS) is a lethal genetic multiple congenital anomaly syndrome of unknown prevalence representing the severe spectrum of serine biosynthesis defects associated with PHGDH, PSAT1, or PSP gene mutations. The purpose of this study was to describe clinical/molecular and pathologic features of a NLS case caused by novel heterozygous missense variant in PHGDH gene identified in his consanguineous parents.
Asunto(s)
Anomalías Múltiples/genética , Encefalopatías/genética , Anomalías Congénitas/genética , Retardo del Crecimiento Fetal/genética , Ictiosis/genética , Deformidades Congénitas de las Extremidades/genética , Microcefalia/genética , Fosfoglicerato-Deshidrogenasa/genética , Mortinato/genética , Anomalías Múltiples/mortalidad , Anomalías Múltiples/patología , Encefalopatías/mortalidad , Encefalopatías/patología , Brasil/epidemiología , Anomalías Congénitas/mortalidad , Anomalías Congénitas/patología , Consanguinidad , Femenino , Retardo del Crecimiento Fetal/mortalidad , Retardo del Crecimiento Fetal/patología , Genes Letales/genética , Predisposición Genética a la Enfermedad , Humanos , Ictiosis/mortalidad , Ictiosis/patología , Deformidades Congénitas de las Extremidades/mortalidad , Deformidades Congénitas de las Extremidades/patología , Microcefalia/mortalidad , Microcefalia/patología , Mutación Missense/genética , Embarazo , Mortinato/epidemiologíaRESUMEN
BACKGROUND: Congenital limb malformations are rare, and their perinatal outcomes are not well described. This study analyzed the perinatal outcomes of infants with congenital limb malformations. METHODS: All infants with congenital limb malformations who underwent prenatal assessment and delivery at our tertiary referral center from 2004 through 2017 were retrospectively identified. Neonatal outcome parameters were assessed, and the predictors of worse perinatal outcomes were determined. RESULTS: One hundred twenty-four cases of congenital limb malformations were identified, of which 104 (83.9%) were analyzed. The upper limb was affected in 15 patients (14.4%), the lower limb in 49 (47.1%), and both limbs in 40 (38.5%) patients. A fetal syndrome was identified in 66 patients (63.5%); clubfoot and longitudinal reduction defects were the most frequent malformations. In total, 38 patients (36.5%) underwent termination, seven (6.7%) had stillbirth, and 59 (56.7%) had live-born delivery. Rates of preterm delivery and transfer to the Neonatal Intensive Care Unit were 42.4 and 25.4%, respectively. Localization of the malformation was a determinant of perinatal outcome (P = .006) and preterm delivery (P = .046). CONCLUSIONS: Congenital limb malformations frequently occur bilaterally and are associated with poor perinatal outcomes, including high rates of stillbirth and preterm delivery. Multidisciplinary care and referral to a perinatal center are warranted.
Asunto(s)
Deformidades Congénitas de las Extremidades/mortalidad , Mortalidad Perinatal , Nacimiento Prematuro/mortalidad , Atención Prenatal/estadística & datos numéricos , Mortinato/epidemiología , Europa (Continente)/epidemiología , Femenino , Humanos , Recién Nacido , Embarazo , Nacimiento Prematuro/etiología , Diagnóstico Prenatal , Estudios Retrospectivos , Centros de Atención TerciariaRESUMEN
In this single-center retrospective study, we analyzed kidney transplant outcomes in nine pediatric patients with VACTERL [vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula, renal anomalies, limb abnormalities] association-making this the largest study of its kind. Of 743 pediatric kidney transplant recipients at our center (1980-2017), nine had documented diagnoses of VACTERL association. All nine had congenital anorectal malformations and renal anomalies, five had vertebral defects, and one had a bifid thumb and tracheoesophageal fistula. Renal anomalies included dysplasia (n = 6), aplasia (n = 3), and horseshoe kidney (n = 2). Congenital lower urinary tract anomalies included neurogenic bladder (n = 6), obstructive uropathy (n = 4), anovesicular fistula (n = 1), rectourethral fistula (n = 1), and posterior urethral valves (n = 1). Age at transplant ranged from 1.2 to 15 years (mean, 7.3; standard deviation [SD], 5.5); 6 (67%) were male, and 3 (33%) were female; 6 (67%) had a living related donor, and 3 (33%) had a deceased donor. The overall graft survival rate was 78% (range, 1.5 to 25.2 years; mean, 10.5; SD, 8.9). One month post-transplant, one recipient died with a functioning graft. At 3.7 years post-transplant, one graft failed because of recurrent pyelonephritis. Post-transplant urologic complications included pyelonephritis (n = 6), vesicoureteral reflux (n = 5), and graft hydronephrosis (n = 4). We conclude that pediatric patients with VACTERL association can be safely transplanted-careful patient selection with vigilance and intervention for pre- and post-transplant urologic complications is essential.
Asunto(s)
Canal Anal/anomalías , Esófago/anomalías , Cardiopatías Congénitas/cirugía , Trasplante de Riñón , Riñón/anomalías , Deformidades Congénitas de las Extremidades/cirugía , Columna Vertebral/anomalías , Tráquea/anomalías , Adolescente , Canal Anal/cirugía , Niño , Preescolar , Esófago/cirugía , Femenino , Supervivencia de Injerto , Cardiopatías Congénitas/mortalidad , Humanos , Lactante , Riñón/cirugía , Deformidades Congénitas de las Extremidades/mortalidad , Masculino , Estudios Retrospectivos , Columna Vertebral/cirugía , Tráquea/cirugía , Resultado del TratamientoRESUMEN
Upper-limb defects with deficiencies of the radial ray have varying etiologies, with a low proportion of true Mendelian disorders. We carried out a population-based study to elucidate the birth prevalence and clinical spectrum of radial ray deficiencies in Finland. We identified all births with radial ray deficiency reported to the Finnish Register of Congenital Malformations in 1993-2005. Altogether 138 cases were identified (123 live births), with a birth prevalence of 1.83 per 10,000 births and a live birth prevalence of 1.64 per 10,000 live births. The proportion of infant deaths was as high as 35%. The majority of the cases were associated with known syndromes or multiple anomalies; only 13% were true isolated radial ray deficiencies. The most common syndrome was trisomy 18, and the most common in multiple anomalies was VACTERL association. In 8.7% of cases an association between radial ray deficiency and heart anomaly was observed. The high proportion of cases with associated major anomalies indicates that radial ray deficiency can be regarded isolated only after thorough assessment of the various organ systems in an affected infant.
Asunto(s)
Anomalías Múltiples/diagnóstico , Cardiopatías Congénitas/diagnóstico , Deformidades Congénitas de las Extremidades/diagnóstico , Trisomía/diagnóstico , Anomalías Múltiples/genética , Anomalías Múltiples/mortalidad , Canal Anal/anomalías , Cromosomas Humanos Par 18 , Esófago/anomalías , Femenino , Finlandia/epidemiología , Cardiopatías Congénitas/genética , Cardiopatías Congénitas/mortalidad , Humanos , Lactante , Riñón/anomalías , Deformidades Congénitas de las Extremidades/genética , Deformidades Congénitas de las Extremidades/mortalidad , Nacimiento Vivo , Masculino , Prevalencia , Columna Vertebral/anomalías , Mortinato/genética , Tráquea/anomalíasRESUMEN
A survey was performed to evaluate the reproductive performance of Thoroughbred mares, estimate risks of dystocia and of morbidity and mortality in foals during the first year post partum and their physical acceptability at age one year. The study population consisted of registered Thoroughbred mares and their foals owned by residents of 4 Western Canadian provinces. Owners were identified using information obtained from the North American Jockey Club, and questionnaires were mailed regarding mares bred in 1988 and their foals born in 1989. Eighty-three per cent of mares were reported to be pregnant at some stage following breeding, and 80% of pregnant mares subsequently gave birth to live foals. Estimates of morbidity and mortality were greater than previously reported, 25% of foals had health problems and 5% died during the first 2 weeks postpartum. Twenty-seven per cent of foals surviving 2 weeks were reportedly affected by some health problem between age 15 days and one year, and 6% died during this period. The case fatality rates of horses with upper respiratory tract infections and diarrhoea were much lower than case fatality rates for infectious diseases occurring less frequently. The rate of death or euthanasia among horses with musculoskeletal problems was relatively high after age 2 weeks. Foals with health problems up to age 2 weeks, or between age 15 days and one year were 5 to 7 times more likely to be classified as physically unacceptable for athletic use. Angular limb deformity was the health problem most commonly reported in foals receiving unacceptable physical assessments, and assessments of longterm athletic potential were apparently not affected by the occurrence of infectious diseases.