Split hand/foot malformation (SHFM), formerly known as ectrodactyly is a rare congénital anomaly, its incidence varies from 1/8.500 to 1/25.000 live birth. It mainly affects the development of the limbs, its clin...Split hand/foot malformation (SHFM), formerly known as ectrodactyly is a rare congénital anomaly, its incidence varies from 1/8.500 to 1/25.000 live birth. It mainly affects the development of the limbs, its clinical variability is standard, can present as an isolated feature or as a syndrome associated with other congenital anomalies. Our objective was to present the two cases of SHFM, and to review the literature on the clinical aspects and discuss a probable origin. The father went to school and is a driver because the malformations concerned only the fingers, were less severe, and did not prevent the realization of certain simple gestures of the daily life. On the other hand, the malformations of the fingers of the newborn were severe and the absence of the thumbs compromised the later prehension function. Also the association of a microglossia and a cleft palate contributed to a weight loss that justified hospitalization. The clinical presentation of split hands and feet is variable and the prognosis depends on the type of anomaly. Familial cases suggest a probable genetic origin. Genetic testing is necessary to establish genetic counseling.展开更多
Typical cleft hand is a rare disorder usually inherited in an autosomal-dominant manner.We report a case of bilateral typical cleft hand in a 6-year-old male.There was no positive family history of such presentation,a...Typical cleft hand is a rare disorder usually inherited in an autosomal-dominant manner.We report a case of bilateral typical cleft hand in a 6-year-old male.There was no positive family history of such presentation,and no systemic manifestations were associated with this entity.Preanesthetic evaluation revealed no systemic or airway challenges and parents were counseled for routine surgical and anesthetic risks.The hands underwent successful surgical reconstruction with no peri-operative complications.To the best of our knowledge,this is thefirst report of an operated case of an isolated,bilateral,and sporadic typical split hand malformation.展开更多
Ectrodactyly, termed Split-Hand/Split-Foot Malformation (SHFM) is a rare genetic condition characterized by defects of the central elements of the autopod (hand/foot). Clinical presentation is with the absence of one ...Ectrodactyly, termed Split-Hand/Split-Foot Malformation (SHFM) is a rare genetic condition characterized by defects of the central elements of the autopod (hand/foot). Clinical presentation is with the absence of one or more median rays or digits creating cone shaped clefts of the hands and/or feet. The present case of severe bilateral split-hand and foot malformations was presented in an 8-year-old girl in India. This case of SHFM involves the complete absence of the central rays of the autopod in which each of the hands and each foot is divided into two parts by a coned shape cleft tapering proximally, resembling a “lobster claw”. SHFM is often associated with other limb anomalies including monodactyly, syndactyly and aplasia and/or hypoplasia of the phalanges, metacarpals, and metatarsals. Most cases are sporadic;however familial forms do exist with pre-dominantly autosomal dominant inheritance. This case is an example of the non-syndromic form of SHFM expressed with isolated involvement of the limbs, while the syndromic form is associated with anomalies as intellectual disability, ectodermal and craniofacial findings and hearing loss. Non-syndromic isolated ectrodactyly does not usually require surgical intervention. We recommended against surgical reconstruction, due to lack of evidence of functional disability.展开更多
In this paper the propagation of elegant Hermite-cosh-Gaussian, elegant Laguerre Gaussian, and Bessel Gaussian beams through a Kerr left-handed metamaterial （LHM） slab have been studied. A split-step Fourier method ...In this paper the propagation of elegant Hermite-cosh-Gaussian, elegant Laguerre Gaussian, and Bessel Gaussian beams through a Kerr left-handed metamaterial （LHM） slab have been studied. A split-step Fourier method is used to investigate the propagation of laser beams through this media. Numerical simulation shows that Gaussian beams have different focusing behaviors in a Kerr LHM slab with positive or negative nonlinearity. Beam focusing happens in slabs with positive nonlinearity and not in slabs with negative nonlinearity; however, negative nonlinearity is required for a Kerr LHM slab to act like a lens. Additionally, the focusing properties of beams can be controlled by controlling the thickness of the slab or the input power of the incident beam. A multilayer structure is also proposed to have beam focusing by thinner slabs and passing longer distances.展开更多
文摘Split hand/foot malformation (SHFM), formerly known as ectrodactyly is a rare congénital anomaly, its incidence varies from 1/8.500 to 1/25.000 live birth. It mainly affects the development of the limbs, its clinical variability is standard, can present as an isolated feature or as a syndrome associated with other congenital anomalies. Our objective was to present the two cases of SHFM, and to review the literature on the clinical aspects and discuss a probable origin. The father went to school and is a driver because the malformations concerned only the fingers, were less severe, and did not prevent the realization of certain simple gestures of the daily life. On the other hand, the malformations of the fingers of the newborn were severe and the absence of the thumbs compromised the later prehension function. Also the association of a microglossia and a cleft palate contributed to a weight loss that justified hospitalization. The clinical presentation of split hands and feet is variable and the prognosis depends on the type of anomaly. Familial cases suggest a probable genetic origin. Genetic testing is necessary to establish genetic counseling.
文摘Typical cleft hand is a rare disorder usually inherited in an autosomal-dominant manner.We report a case of bilateral typical cleft hand in a 6-year-old male.There was no positive family history of such presentation,and no systemic manifestations were associated with this entity.Preanesthetic evaluation revealed no systemic or airway challenges and parents were counseled for routine surgical and anesthetic risks.The hands underwent successful surgical reconstruction with no peri-operative complications.To the best of our knowledge,this is thefirst report of an operated case of an isolated,bilateral,and sporadic typical split hand malformation.
文摘Ectrodactyly, termed Split-Hand/Split-Foot Malformation (SHFM) is a rare genetic condition characterized by defects of the central elements of the autopod (hand/foot). Clinical presentation is with the absence of one or more median rays or digits creating cone shaped clefts of the hands and/or feet. The present case of severe bilateral split-hand and foot malformations was presented in an 8-year-old girl in India. This case of SHFM involves the complete absence of the central rays of the autopod in which each of the hands and each foot is divided into two parts by a coned shape cleft tapering proximally, resembling a “lobster claw”. SHFM is often associated with other limb anomalies including monodactyly, syndactyly and aplasia and/or hypoplasia of the phalanges, metacarpals, and metatarsals. Most cases are sporadic;however familial forms do exist with pre-dominantly autosomal dominant inheritance. This case is an example of the non-syndromic form of SHFM expressed with isolated involvement of the limbs, while the syndromic form is associated with anomalies as intellectual disability, ectodermal and craniofacial findings and hearing loss. Non-syndromic isolated ectrodactyly does not usually require surgical intervention. We recommended against surgical reconstruction, due to lack of evidence of functional disability.
文摘In this paper the propagation of elegant Hermite-cosh-Gaussian, elegant Laguerre Gaussian, and Bessel Gaussian beams through a Kerr left-handed metamaterial （LHM） slab have been studied. A split-step Fourier method is used to investigate the propagation of laser beams through this media. Numerical simulation shows that Gaussian beams have different focusing behaviors in a Kerr LHM slab with positive or negative nonlinearity. Beam focusing happens in slabs with positive nonlinearity and not in slabs with negative nonlinearity; however, negative nonlinearity is required for a Kerr LHM slab to act like a lens. Additionally, the focusing properties of beams can be controlled by controlling the thickness of the slab or the input power of the incident beam. A multilayer structure is also proposed to have beam focusing by thinner slabs and passing longer distances.
