BACKGROUND Fat embolism syndrome(FES)is a rare complication caused by the presence of fat particles in the microcirculation,which usually occurs within 12-72 h after trauma.At present,there have been few cases of fat ...BACKGROUND Fat embolism syndrome(FES)is a rare complication caused by the presence of fat particles in the microcirculation,which usually occurs within 12-72 h after trauma.At present,there have been few cases of fat embolism presenting within 3 h after trauma.Here,we report a case of femoral fracture complicated with an acute fat embolism caused by a car accident.CASE SUMMARY A 29-year-old woman with pain,swelling and limited movement of her left lower limb after a car accident was taken by ambulance to our hospital.X-ray examination showed fracture of the middle and lower part of the left femur and fracture of the base of the left fifth metatarsal bone.She was hospitalized and admitted to the orthopedic ward.After the attending doctor performed tibial tubercle bone traction,the patient became confused,followed by respiratory distress.Finally,she was transferred to the intensive care unit.After nearly a month of treatment in the intensive care unit,the patient's cognitive function gradually recovered over 6 mo.CONCLUSION For patients with early traumatic fractures,young emergency physicians and orthopedics should be aware of the possibility of FES.展开更多
BACKGROUND Fat embolism syndrome(FES)is a rare disease characterized by pulmonary distress,neurologic symptoms,and petechial rash and seriously threatens human life and health.It is still neglected clinically because ...BACKGROUND Fat embolism syndrome(FES)is a rare disease characterized by pulmonary distress,neurologic symptoms,and petechial rash and seriously threatens human life and health.It is still neglected clinically because of the lack of verifiable diagnostic criteria and atypical clinical symptoms.No studies on FES with pulmonary embolism(PE)and tympanic membrane perforation have been reported to date.Here,we report a rare case of concomitant FES,PE and tympanic membrane perforation after surgery in a patient with a tibiofibular fracture.CASE SUMMARY A 39-year-old man presented with right lower extremity pain due to a car accident while driving a motorbike on the road.X-ray and computed tomography scans revealed a fracture of the right mid-shaft tibia and proximal fibula categorized as a type A2 fracture according to the AO classification.A successful minimally invasive operation was performed 3 d after the injury.Postoperatively,the patient developed sudden symptoms of respiratory distress and hearing loss.Early diagnosis was made,and supportive treatments were used at the early stage of FES.Seven days after surgery,he presented a clear recovery from respiratory symptoms.The outcome of fracture healing was excellent,and his hearing of the left ear was mildly impaired at the last follow-up of 4 mo.CONCLUSION Concomitant FES,PE and tympanic membrane perforation are very rare but represent potentially fatal complications of trauma or orthopedic surgery and present with predominantly pulmonary symptoms.Early diagnosis and treatment can reduce the mortality of FES,and prevention is better than a cure.展开更多
A 42 year-old male sustained an accidental rifle gunshot wound to his left foot, resulting in fracture deformities of the calcaneus, navicular, cuneiform, 1st and 2nd metatarsal bases, and talus. As he was transported...A 42 year-old male sustained an accidental rifle gunshot wound to his left foot, resulting in fracture deformities of the calcaneus, navicular, cuneiform, 1st and 2nd metatarsal bases, and talus. As he was transported to our trauma center, he developed progressive encephalopathy. Urgent external fixator placement under general anesthesia was postponed due to his encephalopathy of unknown etiology. Brain magnetic resonance imaging demonstrated a “starfield” pattern of infarcts, consistent with cerebral fat embolism syndrome. Subsequently, he underwent uneventful general anesthesia. The patient was managed supportively and continued to have persistent neurologic dysfunction two months after injury.展开更多
Background: Although the original clinical description of fat embolism syndrome (FES) dates from 1873, the condition remains a diagnostic challenge for modern clinicians. The syndrome is described as a serious consequ...Background: Although the original clinical description of fat embolism syndrome (FES) dates from 1873, the condition remains a diagnostic challenge for modern clinicians. The syndrome is described as a serious consequence of fat emboli producing a distinct pattern of clinical symptoms and signs. It is mainly associated with fractures of the long-bones and the pelvis. The present paper describes the case of a trauma patient with bilateral tibial fractures that present the syndrome and highlights the importance of early identification and aggressive treatment of FES which is obligatory for the patient’s survival. Case Description: A 32 year-old man reached the hospital as a trauma call after a road traffic accident. Clinical examination was unremarkable with the only finding that the patient was unable to straight leg raise and weight bear. Both shins were painful and swollen at their middle third, while the left one was in varus and posterior displacement. Neurovascular status of both lower extremities was normal. Plain radiographic control (X-Rays) revealed an oblique right tibial fracture of the mid-shaft with a distal third fibular fracture and a comminuted fracture of the left tibia with a fracture of the fibula at the same level. The legs were immobilised on a splint and the decision was to treat the patient surgically. Within a few post admission hours the haemoglobin dropped by 2.9 mg/dL, however a source of active bleeding could not be allocated. The abdomen was soft and not tender in palpation and the central nervous system did not present any abnormalities. The following day the haemoglobin dropped but the new ultrasonography control did not reveal any free abdominal fluid. Both lower limbs were not compromised. The second post-injury day the patient went to theatre and the right tibia was stabilised with an antegrade nail (T2-Stryker) while the left one with an external fixation. During the reaming process the haemoglobin dropped to 7.1 gr/dL, so he was transfused with 3 blood units. Immediately after extubation, the patient desaturated on air and ABG values forced the anaesthetists to intubate him in recovery and place him in mechanical ventilation with high levels of positive end expiratory pressure (PEEP). Symptoms subsided rapidly and he was transferred to the IMU. Clinical image and CT scan were in favour of fat embolism syndrome. On the fifth post-operative day the patient was transferred back to ward and a week later he was discharged being completely free of symptoms. Clinical Relevance: Fat embolism syndrome is typically presented with the following triad: a) respiratory changes;b) neurologic abnormalities;c) petechial rash. These three constitute the major criteria described by Gurd and are pathognomonic for the condition. The patient—described in the present case report—developed progressively all those symptoms within the expected period of time. The FES is a well-known pathological condition that is well described in literature and should be familiar to those clinicians that manage trauma patients. Diagnosing the condition can be highly demanding since there are no laboratory investigations or radiographic imaging techniques specific for FES. Suspicion and diagnosis can be mainly placed based on the criteria described by Gurd, in 1970.展开更多
To find the diagnostic methods for snbclinical stage fat embolism syndrome (FES), we established an experimental animal model, using fat intravenous injection. The fat was obtained from the long bone marrow cavity of ...To find the diagnostic methods for snbclinical stage fat embolism syndrome (FES), we established an experimental animal model, using fat intravenous injection. The fat was obtained from the long bone marrow cavity of homologous dogs. Fourteen healthy mongrel dogs received 0.7 ml / kg fluid marrow fat injection and all of them developed FES within 48 hours. The blood samples collected from the pulmonary vessels by floating catheter and peripheral vein at different time intervals were subjected to blood gas analysis and were frozen sectioned rapidly. The sections were stained with oil red 'O'. Positive result was seen 2 hours after fat injection in both pulmonary and peripheral blood. Computer image analysis showed that the number and diameter of fat droplets in pulmonary vascular blood were obviously higher and larger than those in peripheral vein blood. These findings were correlated well with blood gas changes and clinical features. The demonstration of fat droplets from pulmonary or peripheral blood by oil red 'O' staining combined with blood gas changes (PaO2<7.99 kPa, P(A-a)O2 > 6.09 kPa) may be rapid and specific for early diagnosis of FES. In the treatment of FES, dexamethason can stabilize the cellular membranes and inhibit the neutrophil response to fatty acid and the release of phospholipase A2, arachidonic acid and platelet aggregation.展开更多
目的:观察损伤控制骨科(damage control orthopaedic,DCO)策略对下肢长骨干骨折伴发脂肪栓塞综合征(fat embolism syndrome,FES)的干预效果。方法:回顾性分析2015年1月至2021年5月收治的163例下肢长骨干骨折伴发FES患者临床资料,以2018...目的:观察损伤控制骨科(damage control orthopaedic,DCO)策略对下肢长骨干骨折伴发脂肪栓塞综合征(fat embolism syndrome,FES)的干预效果。方法:回顾性分析2015年1月至2021年5月收治的163例下肢长骨干骨折伴发FES患者临床资料,以2018年1月实施DCO策略为时间点分为两组,2015年1月至2017年12月收治92例为对照组,2018年1月至2021年5月收治71例为干预组。观察并比较两组患者院内死亡率、动脉血氧饱和度(arterial oxygen saturation,SaO2)、动脉血氧分压(arterial partial pressure of oxygen,PaO2)和氧合指数(oxygenation index,OI)、血红蛋白(hemoglobin,Hb)、血小板计数(platelet count,PLT)、髋关节Harris评分、美国特种外科医院膝关节评分(Hospital for Special Surgery Knee Score,HSS)评分、美国骨科足与踝关节协会(American Orthopaedic Foot and Ankle Society,AOFAS)评分、临床疗效及并发症。结果:163例患者获随访,时间12~18(16.91±1.22)个月。干预组院内死亡率为2.82%(2/71),对照组院内死亡率为16.30%(15/92),两组差异有统计意义(χ^(2)=6.455,P<0.05);两组干预后SaO2、PaO2和OI均较干预前升高(P<0.05),且两组干预后SaO2、PaO2和OI比较差异有统计意义(P<0.05)。两组干预后Hb、PLT均较干预前升高(P<0.001),且两组干预后Hb、PLT比较差异有统计意义(P<0.05)。两组患者治疗3个月后髋关节Harris评分、膝关节HSS评分、踝关节AOFAS评分均优于治疗前(P<0.05)。干预组临床总有效率高于对照组(χ^(2)=4.194,P<0.05)。干预组并发症总发生低于对照组(χ^(2)=4.747,P<0.05)。结论:DCO策略有助于降低下肢长骨干骨折伴发FES患者院内死亡率,有利于消除FES症状和平稳生命体征,可为Ⅱ期确定性手术争取时间优势,临床干预效果显著,值得推广应用。展开更多
文摘BACKGROUND Fat embolism syndrome(FES)is a rare complication caused by the presence of fat particles in the microcirculation,which usually occurs within 12-72 h after trauma.At present,there have been few cases of fat embolism presenting within 3 h after trauma.Here,we report a case of femoral fracture complicated with an acute fat embolism caused by a car accident.CASE SUMMARY A 29-year-old woman with pain,swelling and limited movement of her left lower limb after a car accident was taken by ambulance to our hospital.X-ray examination showed fracture of the middle and lower part of the left femur and fracture of the base of the left fifth metatarsal bone.She was hospitalized and admitted to the orthopedic ward.After the attending doctor performed tibial tubercle bone traction,the patient became confused,followed by respiratory distress.Finally,she was transferred to the intensive care unit.After nearly a month of treatment in the intensive care unit,the patient's cognitive function gradually recovered over 6 mo.CONCLUSION For patients with early traumatic fractures,young emergency physicians and orthopedics should be aware of the possibility of FES.
基金The Subject Leadership Project of Shanghai Pudong New Area,No.PWRd2016-06the Featured Clinical Discipline Project of Shanghai Pudong,No.PWYts2018-03.
文摘BACKGROUND Fat embolism syndrome(FES)is a rare disease characterized by pulmonary distress,neurologic symptoms,and petechial rash and seriously threatens human life and health.It is still neglected clinically because of the lack of verifiable diagnostic criteria and atypical clinical symptoms.No studies on FES with pulmonary embolism(PE)and tympanic membrane perforation have been reported to date.Here,we report a rare case of concomitant FES,PE and tympanic membrane perforation after surgery in a patient with a tibiofibular fracture.CASE SUMMARY A 39-year-old man presented with right lower extremity pain due to a car accident while driving a motorbike on the road.X-ray and computed tomography scans revealed a fracture of the right mid-shaft tibia and proximal fibula categorized as a type A2 fracture according to the AO classification.A successful minimally invasive operation was performed 3 d after the injury.Postoperatively,the patient developed sudden symptoms of respiratory distress and hearing loss.Early diagnosis was made,and supportive treatments were used at the early stage of FES.Seven days after surgery,he presented a clear recovery from respiratory symptoms.The outcome of fracture healing was excellent,and his hearing of the left ear was mildly impaired at the last follow-up of 4 mo.CONCLUSION Concomitant FES,PE and tympanic membrane perforation are very rare but represent potentially fatal complications of trauma or orthopedic surgery and present with predominantly pulmonary symptoms.Early diagnosis and treatment can reduce the mortality of FES,and prevention is better than a cure.
文摘A 42 year-old male sustained an accidental rifle gunshot wound to his left foot, resulting in fracture deformities of the calcaneus, navicular, cuneiform, 1st and 2nd metatarsal bases, and talus. As he was transported to our trauma center, he developed progressive encephalopathy. Urgent external fixator placement under general anesthesia was postponed due to his encephalopathy of unknown etiology. Brain magnetic resonance imaging demonstrated a “starfield” pattern of infarcts, consistent with cerebral fat embolism syndrome. Subsequently, he underwent uneventful general anesthesia. The patient was managed supportively and continued to have persistent neurologic dysfunction two months after injury.
文摘Background: Although the original clinical description of fat embolism syndrome (FES) dates from 1873, the condition remains a diagnostic challenge for modern clinicians. The syndrome is described as a serious consequence of fat emboli producing a distinct pattern of clinical symptoms and signs. It is mainly associated with fractures of the long-bones and the pelvis. The present paper describes the case of a trauma patient with bilateral tibial fractures that present the syndrome and highlights the importance of early identification and aggressive treatment of FES which is obligatory for the patient’s survival. Case Description: A 32 year-old man reached the hospital as a trauma call after a road traffic accident. Clinical examination was unremarkable with the only finding that the patient was unable to straight leg raise and weight bear. Both shins were painful and swollen at their middle third, while the left one was in varus and posterior displacement. Neurovascular status of both lower extremities was normal. Plain radiographic control (X-Rays) revealed an oblique right tibial fracture of the mid-shaft with a distal third fibular fracture and a comminuted fracture of the left tibia with a fracture of the fibula at the same level. The legs were immobilised on a splint and the decision was to treat the patient surgically. Within a few post admission hours the haemoglobin dropped by 2.9 mg/dL, however a source of active bleeding could not be allocated. The abdomen was soft and not tender in palpation and the central nervous system did not present any abnormalities. The following day the haemoglobin dropped but the new ultrasonography control did not reveal any free abdominal fluid. Both lower limbs were not compromised. The second post-injury day the patient went to theatre and the right tibia was stabilised with an antegrade nail (T2-Stryker) while the left one with an external fixation. During the reaming process the haemoglobin dropped to 7.1 gr/dL, so he was transfused with 3 blood units. Immediately after extubation, the patient desaturated on air and ABG values forced the anaesthetists to intubate him in recovery and place him in mechanical ventilation with high levels of positive end expiratory pressure (PEEP). Symptoms subsided rapidly and he was transferred to the IMU. Clinical image and CT scan were in favour of fat embolism syndrome. On the fifth post-operative day the patient was transferred back to ward and a week later he was discharged being completely free of symptoms. Clinical Relevance: Fat embolism syndrome is typically presented with the following triad: a) respiratory changes;b) neurologic abnormalities;c) petechial rash. These three constitute the major criteria described by Gurd and are pathognomonic for the condition. The patient—described in the present case report—developed progressively all those symptoms within the expected period of time. The FES is a well-known pathological condition that is well described in literature and should be familiar to those clinicians that manage trauma patients. Diagnosing the condition can be highly demanding since there are no laboratory investigations or radiographic imaging techniques specific for FES. Suspicion and diagnosis can be mainly placed based on the criteria described by Gurd, in 1970.
文摘To find the diagnostic methods for snbclinical stage fat embolism syndrome (FES), we established an experimental animal model, using fat intravenous injection. The fat was obtained from the long bone marrow cavity of homologous dogs. Fourteen healthy mongrel dogs received 0.7 ml / kg fluid marrow fat injection and all of them developed FES within 48 hours. The blood samples collected from the pulmonary vessels by floating catheter and peripheral vein at different time intervals were subjected to blood gas analysis and were frozen sectioned rapidly. The sections were stained with oil red 'O'. Positive result was seen 2 hours after fat injection in both pulmonary and peripheral blood. Computer image analysis showed that the number and diameter of fat droplets in pulmonary vascular blood were obviously higher and larger than those in peripheral vein blood. These findings were correlated well with blood gas changes and clinical features. The demonstration of fat droplets from pulmonary or peripheral blood by oil red 'O' staining combined with blood gas changes (PaO2<7.99 kPa, P(A-a)O2 > 6.09 kPa) may be rapid and specific for early diagnosis of FES. In the treatment of FES, dexamethason can stabilize the cellular membranes and inhibit the neutrophil response to fatty acid and the release of phospholipase A2, arachidonic acid and platelet aggregation.
文摘目的:观察损伤控制骨科(damage control orthopaedic,DCO)策略对下肢长骨干骨折伴发脂肪栓塞综合征(fat embolism syndrome,FES)的干预效果。方法:回顾性分析2015年1月至2021年5月收治的163例下肢长骨干骨折伴发FES患者临床资料,以2018年1月实施DCO策略为时间点分为两组,2015年1月至2017年12月收治92例为对照组,2018年1月至2021年5月收治71例为干预组。观察并比较两组患者院内死亡率、动脉血氧饱和度(arterial oxygen saturation,SaO2)、动脉血氧分压(arterial partial pressure of oxygen,PaO2)和氧合指数(oxygenation index,OI)、血红蛋白(hemoglobin,Hb)、血小板计数(platelet count,PLT)、髋关节Harris评分、美国特种外科医院膝关节评分(Hospital for Special Surgery Knee Score,HSS)评分、美国骨科足与踝关节协会(American Orthopaedic Foot and Ankle Society,AOFAS)评分、临床疗效及并发症。结果:163例患者获随访,时间12~18(16.91±1.22)个月。干预组院内死亡率为2.82%(2/71),对照组院内死亡率为16.30%(15/92),两组差异有统计意义(χ^(2)=6.455,P<0.05);两组干预后SaO2、PaO2和OI均较干预前升高(P<0.05),且两组干预后SaO2、PaO2和OI比较差异有统计意义(P<0.05)。两组干预后Hb、PLT均较干预前升高(P<0.001),且两组干预后Hb、PLT比较差异有统计意义(P<0.05)。两组患者治疗3个月后髋关节Harris评分、膝关节HSS评分、踝关节AOFAS评分均优于治疗前(P<0.05)。干预组临床总有效率高于对照组(χ^(2)=4.194,P<0.05)。干预组并发症总发生低于对照组(χ^(2)=4.747,P<0.05)。结论:DCO策略有助于降低下肢长骨干骨折伴发FES患者院内死亡率,有利于消除FES症状和平稳生命体征,可为Ⅱ期确定性手术争取时间优势,临床干预效果显著,值得推广应用。
