The type B aortic dissection(TBAD)is a perilous disease with high morbidity and mortality rates.The hemodynamics of TBAD in different scenarios has been widely studied by computational fluid dynamics(CFD)research.Howe...The type B aortic dissection(TBAD)is a perilous disease with high morbidity and mortality rates.The hemodynamics of TBAD in different scenarios has been widely studied by computational fluid dynamics(CFD)research.However,the flow pattern and wave propagation characteristics in the cardiovascular system with TBAD are not yet clear,and the effect of the distal tear is still unknown.In this work,a onedimensional(1D)cardiovascular system model coupling with a zero-dimensional(0D)lumped-parameter model is introduced to study the hemodynamics and wave propagation in the cardiovascular system.The results show that the proposed 0D-1D method well captures the oscillation and retrograde characteristics for the flow in the false lumen(FL),and the smaller distal tear damps the retrograde flow.Besides,the distal tear should also be paid attention to,and the wave intensity(WI)can be used as an access mark of the degree of the aortic dissection(AD).展开更多
AIM To review current literature on types of distal triceps injuryand determine diagnosis and appropriate management.METHODS We performed a systematic review in PubM ed, Cochrane and EMBASE using the terms distal tric...AIM To review current literature on types of distal triceps injuryand determine diagnosis and appropriate management.METHODS We performed a systematic review in PubM ed, Cochrane and EMBASE using the terms distal triceps tears and snapping triceps on the 10 th January 2017. We excluded all animal, review, foreign language and repeat papers. We reviewed all papers for relevance and of the papers left we were able to establish the types of distal triceps injury, how these injuries are diagnosed and investigated and the types of management of these injuries including surgical. The results are then presented in a review paper format.RESULTS Three hundred and seventy-nine papers were identified of which 65 were relevant to distal triceps injuries. After exclusion we had 47 appropriate papers. The papers highlighted 2 main distal triceps injuries: Distal triceps tears and snapping triceps. Triceps tear are more common in males than females occurring in the 4th-5th decade of life and often due to a direct trauma but are also strongly associated with weightlifting and American football. The tears are diagnosed by history and clinically with a palpable gap. Diagnosis can be confirmed with the use of ultrasound(US) and magnetic resonance imaging. Treatment depends on type of tear. Partial tears can be treated conservatively with bracing and physio whereas acute tears need repair either open or arthroscopic using suture anchor or bone tunnel techniques with similar success. Chronic tears often need augmenting with tendon allograft or autograft. Snapping triceps are also seen more in men than women but at a mean age of 32 years. They are characterized by a snapping sensation mostly medially and can be associated with ulna nerve subluxation and ulna nerve symptoms. US is the diagnostic modality of choice due to its dynamic nature and to differentiate between snapping triceps tendon or ulna nerve. Treatment is conservative initially with activity avoidance and if that fails surgical management includes resection of triceps edge or transposition of the tendon plus or minusulna nerve transposition.CONCLUSION Distal triceps injuries are uncommon. This systematic review examines the evidence base behind diagnosis, imaging and treatment options of distal triceps injuries including tears and snapping triceps.展开更多
Distal biceps tendon rupture accounts for only 3% - 10% of all biceps tendon injuries. The majority of distal biceps tendon injuries are from complete rupture. It is especially rare to diagnose partial rupture of the ...Distal biceps tendon rupture accounts for only 3% - 10% of all biceps tendon injuries. The majority of distal biceps tendon injuries are from complete rupture. It is especially rare to diagnose partial rupture of the distal biceps tendon. Our case profiles a chronic partial tear of the distal biceps tendon in a pediatric patient.展开更多
目的探讨急性B型主动脉夹层(ATBAD)胸主动脉腔内修复术(TEVAR)后选择性处理胸主动脉远端裂口的安全性和有效性。方法回顾性搜集TEVAR术后存在胸主动脉远端裂口的ATBAD患者资料,根据是否处理胸主动脉段远端裂口将其分为处理组和对照组,...目的探讨急性B型主动脉夹层(ATBAD)胸主动脉腔内修复术(TEVAR)后选择性处理胸主动脉远端裂口的安全性和有效性。方法回顾性搜集TEVAR术后存在胸主动脉远端裂口的ATBAD患者资料,根据是否处理胸主动脉段远端裂口将其分为处理组和对照组,统计两组患者的基线资料、主动脉重塑数据和主动脉相关不良事件发生情况,总结分析选择性处理胸主动脉远端裂口的疗效。结果共纳入74例ATBAD患者,处理组38例,均封堵胸主动脉段远端裂口;对照组36例,未干预远端裂口。随访12个月后,两组患者在主动脉相关不良事件及再干预率未见明显差异(P>0.05),左锁骨下动脉和膈肌水平主动脉直径对比中,处理组重塑效果更佳(32.1 mm vs 33.1 mm,30.0 mm vs 31.7 mm,P<0.05),左肾动脉下缘水平未见明显差异(31.6 mm vs 30.9 mm,P>0.05),处理组的胸主动脉段假腔完全血栓化率高于对照组(86.9%vs 58.3%,P<0.05),腹主动脉段未见明显差异(15.8%vs 11.1%,P>0.05)。处理组随访期间出现支架源性裂口3例,对照组出现逆行A型夹层1例,均接受再干预治疗,无死亡、截瘫、内漏等事件。结论早期结果表明选择性处理急性B型主动脉夹层TEVAR术后胸主动脉远端裂口可以促进主动脉重塑,是安全有效的。展开更多
基金supported by the National Natural Science Foundation of China(No.51976026)the Fundamental Research Funds of Central Universities of China(Nos.DUT22YG206 and DUT21JC25)。
文摘The type B aortic dissection(TBAD)is a perilous disease with high morbidity and mortality rates.The hemodynamics of TBAD in different scenarios has been widely studied by computational fluid dynamics(CFD)research.However,the flow pattern and wave propagation characteristics in the cardiovascular system with TBAD are not yet clear,and the effect of the distal tear is still unknown.In this work,a onedimensional(1D)cardiovascular system model coupling with a zero-dimensional(0D)lumped-parameter model is introduced to study the hemodynamics and wave propagation in the cardiovascular system.The results show that the proposed 0D-1D method well captures the oscillation and retrograde characteristics for the flow in the false lumen(FL),and the smaller distal tear damps the retrograde flow.Besides,the distal tear should also be paid attention to,and the wave intensity(WI)can be used as an access mark of the degree of the aortic dissection(AD).
文摘AIM To review current literature on types of distal triceps injuryand determine diagnosis and appropriate management.METHODS We performed a systematic review in PubM ed, Cochrane and EMBASE using the terms distal triceps tears and snapping triceps on the 10 th January 2017. We excluded all animal, review, foreign language and repeat papers. We reviewed all papers for relevance and of the papers left we were able to establish the types of distal triceps injury, how these injuries are diagnosed and investigated and the types of management of these injuries including surgical. The results are then presented in a review paper format.RESULTS Three hundred and seventy-nine papers were identified of which 65 were relevant to distal triceps injuries. After exclusion we had 47 appropriate papers. The papers highlighted 2 main distal triceps injuries: Distal triceps tears and snapping triceps. Triceps tear are more common in males than females occurring in the 4th-5th decade of life and often due to a direct trauma but are also strongly associated with weightlifting and American football. The tears are diagnosed by history and clinically with a palpable gap. Diagnosis can be confirmed with the use of ultrasound(US) and magnetic resonance imaging. Treatment depends on type of tear. Partial tears can be treated conservatively with bracing and physio whereas acute tears need repair either open or arthroscopic using suture anchor or bone tunnel techniques with similar success. Chronic tears often need augmenting with tendon allograft or autograft. Snapping triceps are also seen more in men than women but at a mean age of 32 years. They are characterized by a snapping sensation mostly medially and can be associated with ulna nerve subluxation and ulna nerve symptoms. US is the diagnostic modality of choice due to its dynamic nature and to differentiate between snapping triceps tendon or ulna nerve. Treatment is conservative initially with activity avoidance and if that fails surgical management includes resection of triceps edge or transposition of the tendon plus or minusulna nerve transposition.CONCLUSION Distal triceps injuries are uncommon. This systematic review examines the evidence base behind diagnosis, imaging and treatment options of distal triceps injuries including tears and snapping triceps.
文摘Distal biceps tendon rupture accounts for only 3% - 10% of all biceps tendon injuries. The majority of distal biceps tendon injuries are from complete rupture. It is especially rare to diagnose partial rupture of the distal biceps tendon. Our case profiles a chronic partial tear of the distal biceps tendon in a pediatric patient.
文摘目的探讨急性B型主动脉夹层(ATBAD)胸主动脉腔内修复术(TEVAR)后选择性处理胸主动脉远端裂口的安全性和有效性。方法回顾性搜集TEVAR术后存在胸主动脉远端裂口的ATBAD患者资料,根据是否处理胸主动脉段远端裂口将其分为处理组和对照组,统计两组患者的基线资料、主动脉重塑数据和主动脉相关不良事件发生情况,总结分析选择性处理胸主动脉远端裂口的疗效。结果共纳入74例ATBAD患者,处理组38例,均封堵胸主动脉段远端裂口;对照组36例,未干预远端裂口。随访12个月后,两组患者在主动脉相关不良事件及再干预率未见明显差异(P>0.05),左锁骨下动脉和膈肌水平主动脉直径对比中,处理组重塑效果更佳(32.1 mm vs 33.1 mm,30.0 mm vs 31.7 mm,P<0.05),左肾动脉下缘水平未见明显差异(31.6 mm vs 30.9 mm,P>0.05),处理组的胸主动脉段假腔完全血栓化率高于对照组(86.9%vs 58.3%,P<0.05),腹主动脉段未见明显差异(15.8%vs 11.1%,P>0.05)。处理组随访期间出现支架源性裂口3例,对照组出现逆行A型夹层1例,均接受再干预治疗,无死亡、截瘫、内漏等事件。结论早期结果表明选择性处理急性B型主动脉夹层TEVAR术后胸主动脉远端裂口可以促进主动脉重塑,是安全有效的。
