We report a case of an anomalous pulmonary vein on chest X-ray resembling a scimitar sign in an 80-year-old female undergoing investigation of syncope.Multislice computed tomography(CT) with multiplanar reformatting a...We report a case of an anomalous pulmonary vein on chest X-ray resembling a scimitar sign in an 80-year-old female undergoing investigation of syncope.Multislice computed tomography(CT) with multiplanar reformatting and maximum intensity projections demonstrated an aberrant right inferior pulmonary vein coursing inferomedially towards the diaphragm before turning superiorly and draining normally into the left atrium.The diagnosis of an incidental meandering right pulmonary vein was established.The case is used to review the literature on this rare pulmonary anomaly,including pathogenesis,its relationship with scimitar syndrome and scimitar variant,and diagnosis,with an emphasis on the role modern CT techniques can play in noninvasive diagnosis.A revision to the nomenclature of pulmonary vascular anomalies is proposed to help reduce confusion in the literature.展开更多
Scimitar Syndrome is a congenital condition resulting in anomalous pulmonary venous drainage from the lung into the inferior vena cava. It is often associated with cardiac and pulmonary abnormalities, both which are d...Scimitar Syndrome is a congenital condition resulting in anomalous pulmonary venous drainage from the lung into the inferior vena cava. It is often associated with cardiac and pulmonary abnormalities, both which are determinants in the severity and timing of presentation. True incidence of this condition is unknown and likely to be significantly underestimated as many patients remain asymptomatic through adult life. The increase in availability and use of medical imaging suggests that more asymptomatic and subacute cases will be detected. The management in those with the delayed presentation of this condition is debated, however the mainstay of therapy remains medical.展开更多
We describe a case of a rare congenital heart disorder,scimitar syndrome,diagnosed in an adult woman presenting with dyspnea on exertion,chest pain and recurrent episodes of pulmonary infections.The hallmark of the sy...We describe a case of a rare congenital heart disorder,scimitar syndrome,diagnosed in an adult woman presenting with dyspnea on exertion,chest pain and recurrent episodes of pulmonary infections.The hallmark of the syndrome is the presence of an enlarged anomalous pulmonary vein draining into the inferior vena cava.Speckle tracking echocardiography,including the often-forgotten atrial strain evaluation,is a sensitive parameter that should be routinely used for a better clinical and prognostic evaluation of patients with congenital heart disease(CHD).展开更多
Importance:Scimitar syndrome(SS)is a rare type of congenital heart disease characterized by total or partial anomalous venous drainage of the right lung to the inferior vena cava.However,the surgical repair techniques...Importance:Scimitar syndrome(SS)is a rare type of congenital heart disease characterized by total or partial anomalous venous drainage of the right lung to the inferior vena cava.However,the surgical repair techniques for SS vary according to patients'anatomical and pathological features.Objective:This study was performed to analyze the mid-term results of a less invasive surgical correction technique for SS in children.Methods:Eleven patients with SS who underwent surgical repair from January 2012 to March 2020 were retrospectively analyzed.The anomalous scimitar vein(SV)was directly reimplanted to the left atrium,and the concomitant atrial septal defect was simultaneously repaired with cardiopulmonary bypass.Results:Three male and eight female patients were included in the study.Their mean age was 3.1±1.3 years,and their mean body weight was 12.8±3.0 kg.Most patients had symptoms,such as upper respiratory tract infection,dyspnea,and recurrent pneumonia,and two patients had pulmonary hypertension.None of the 11 patients who underwent direct SV reimplantation by right thoracotomy developed bleeding,arrhythmia,heart failure,or perioperative death,and no patients required reoperation during a mean follow-up period of 36.6±15.2 months.Postoperative echocardiography revealed no restenosis or obstruction of the anastomosis in any patients.Interpretation:Surgical repair for SS by right thoracotomy and direct anastomosis of the SV to the posterior wall of the left atrium is safe and effective,with good long-term patency of the reimplanted SV and a low mortality rate.展开更多
Objective:To determine the prevalence of Cysticercus tenuicollis(C.tenuicollis) metacestodes in five oryx species kept in A1 Ain Zoo animal collection.Methods:This study was based on a retrospective analysis of post-m...Objective:To determine the prevalence of Cysticercus tenuicollis(C.tenuicollis) metacestodes in five oryx species kept in A1 Ain Zoo animal collection.Methods:This study was based on a retrospective analysis of post-mortem records covering a four year period(July 2010 to July 2014).Results:A total of 213 individual animals were recorded dead during the four year period(July 2010 to July 2014).Out of this,12(5.6%) were recorded with C.tenuicollis.More females(8) than males(4) were recorded to have C.tenuicollis,although this was not statistically significant(P= 0.3737).Conclusions:This study shows that,Arabian oryx,beisa oryx,fringe-eared oryx,gemsbok and scimitar-horned oryx are susceptible to C.tenuicollis.Based on the epidemiology and the life cycle of this parasite,it is possible that these captive animals ingested the parasite through contaminated feed which could have happened in the pasture land or stray dogs and wild canidae(e.g.fox) visited the zoo contaminating the oryx feed.Stray dogs and wild canidae should be prevented from visiting pasture land and a captive animal facility.展开更多
文摘We report a case of an anomalous pulmonary vein on chest X-ray resembling a scimitar sign in an 80-year-old female undergoing investigation of syncope.Multislice computed tomography(CT) with multiplanar reformatting and maximum intensity projections demonstrated an aberrant right inferior pulmonary vein coursing inferomedially towards the diaphragm before turning superiorly and draining normally into the left atrium.The diagnosis of an incidental meandering right pulmonary vein was established.The case is used to review the literature on this rare pulmonary anomaly,including pathogenesis,its relationship with scimitar syndrome and scimitar variant,and diagnosis,with an emphasis on the role modern CT techniques can play in noninvasive diagnosis.A revision to the nomenclature of pulmonary vascular anomalies is proposed to help reduce confusion in the literature.
文摘Scimitar Syndrome is a congenital condition resulting in anomalous pulmonary venous drainage from the lung into the inferior vena cava. It is often associated with cardiac and pulmonary abnormalities, both which are determinants in the severity and timing of presentation. True incidence of this condition is unknown and likely to be significantly underestimated as many patients remain asymptomatic through adult life. The increase in availability and use of medical imaging suggests that more asymptomatic and subacute cases will be detected. The management in those with the delayed presentation of this condition is debated, however the mainstay of therapy remains medical.
文摘We describe a case of a rare congenital heart disorder,scimitar syndrome,diagnosed in an adult woman presenting with dyspnea on exertion,chest pain and recurrent episodes of pulmonary infections.The hallmark of the syndrome is the presence of an enlarged anomalous pulmonary vein draining into the inferior vena cava.Speckle tracking echocardiography,including the often-forgotten atrial strain evaluation,is a sensitive parameter that should be routinely used for a better clinical and prognostic evaluation of patients with congenital heart disease(CHD).
基金The research is supported by Pediatric Special Key Project from Beijing Hospitals Authority Pediatric Collaborative Development Center,Grant No.XTYB201819。
文摘Importance:Scimitar syndrome(SS)is a rare type of congenital heart disease characterized by total or partial anomalous venous drainage of the right lung to the inferior vena cava.However,the surgical repair techniques for SS vary according to patients'anatomical and pathological features.Objective:This study was performed to analyze the mid-term results of a less invasive surgical correction technique for SS in children.Methods:Eleven patients with SS who underwent surgical repair from January 2012 to March 2020 were retrospectively analyzed.The anomalous scimitar vein(SV)was directly reimplanted to the left atrium,and the concomitant atrial septal defect was simultaneously repaired with cardiopulmonary bypass.Results:Three male and eight female patients were included in the study.Their mean age was 3.1±1.3 years,and their mean body weight was 12.8±3.0 kg.Most patients had symptoms,such as upper respiratory tract infection,dyspnea,and recurrent pneumonia,and two patients had pulmonary hypertension.None of the 11 patients who underwent direct SV reimplantation by right thoracotomy developed bleeding,arrhythmia,heart failure,or perioperative death,and no patients required reoperation during a mean follow-up period of 36.6±15.2 months.Postoperative echocardiography revealed no restenosis or obstruction of the anastomosis in any patients.Interpretation:Surgical repair for SS by right thoracotomy and direct anastomosis of the SV to the posterior wall of the left atrium is safe and effective,with good long-term patency of the reimplanted SV and a low mortality rate.
基金Funded by Al Ain Zoo through a Grant Number 15/917001
文摘Objective:To determine the prevalence of Cysticercus tenuicollis(C.tenuicollis) metacestodes in five oryx species kept in A1 Ain Zoo animal collection.Methods:This study was based on a retrospective analysis of post-mortem records covering a four year period(July 2010 to July 2014).Results:A total of 213 individual animals were recorded dead during the four year period(July 2010 to July 2014).Out of this,12(5.6%) were recorded with C.tenuicollis.More females(8) than males(4) were recorded to have C.tenuicollis,although this was not statistically significant(P= 0.3737).Conclusions:This study shows that,Arabian oryx,beisa oryx,fringe-eared oryx,gemsbok and scimitar-horned oryx are susceptible to C.tenuicollis.Based on the epidemiology and the life cycle of this parasite,it is possible that these captive animals ingested the parasite through contaminated feed which could have happened in the pasture land or stray dogs and wild canidae(e.g.fox) visited the zoo contaminating the oryx feed.Stray dogs and wild canidae should be prevented from visiting pasture land and a captive animal facility.
