BACKGROUND:Spontaneous isolated superior mesenteric artery(SMA)dissection(SISMAD)is a rare cause of abdominal pain.The aim of the study is to investigate the role of a new parameter,the ratio of the SMA diameter to th...BACKGROUND:Spontaneous isolated superior mesenteric artery(SMA)dissection(SISMAD)is a rare cause of abdominal pain.The aim of the study is to investigate the role of a new parameter,the ratio of the SMA diameter to the superior mesenteric vein(SMV)diameter(SMA/SMV)based on non-enhanced computed tomography(CT),in the early diagnosis of SISMAD.METHODS:In a registry study from December 2013 to June 2021,97 abdominal pain SISMAD patients(SISMAD group)admitted to our hospital were enrolled.Meanwhile,the matched sex and age abdominal pain non-SISMAD patients at 1:2 were collected in reverse chronological order as the control group.Student’s t-test,Wilcoxon rank-sum test,and Chi-square test were used to compare differences between the SISMAD and control groups.Med Calc was used to generate receiver operating characteristic(ROC)curve.RESULTS:A total of 291 abdominal pain patients,including 97 SISMAD patients and 194 nonSISMAD patients,were included in the current study.The maximum SMA diameter,perivascular exudation,and SMA/SMV based on non-enhanced CT were significant between the two groups(all P<0.05).ROC curves showed that for the maximum SMA diameter,the area under the curve(AUC),cut-off,sensitivity,and specificity were 0.926,9.80,93.8%,and 79.4%,respectively.For SMA/SMV,its AUC,cut-off,sensitivity,and specificity were 0.956,0.83,88.7%,and 92.3%,respectively.The diagnostic efficiency of SMA/SMV was better than that of the maximum SMA diameter(P<0.05).The combined parameters of SMA/SMV and maximum SMA diameter had the best diagnostic efficiency(AUC=0.970).CONCLUSION:SMA/SMV may be a potential marker for SISMAD.展开更多
BACKGROUND Spontaneous isolated superior mesenteric artery dissection(SISMAD)is a rare disease that originates from the superior mesenteric artery,without the presence of aortic and other arterial dissections.Most cas...BACKGROUND Spontaneous isolated superior mesenteric artery dissection(SISMAD)is a rare disease that originates from the superior mesenteric artery,without the presence of aortic and other arterial dissections.Most cases are diagnosed using contrastenhanced computed tomography(CECT),whereas the application of ultrasound is less common.CASE SUMMARY Here,we report a case of SISMAD with sudden epigastric pain that worsened as the main symptom after eating.The patient had a long history of hypertension with unknown blood pressure control but no history of smoking or alcohol consumption.This case was initially diagnosed using ultrasound and the results were later confirmed by CECT.After admission,the patient fasted,followed by parenteral nutrition support and fluid supplementation to maintain electrolyte and acid–base balance.Metoprolol succinate sustained-release tablets and aspirin were given as nonoperative treatments.After 1 wk,the symptoms improved,and the patient was discharged.During telephone follow-up,the patient did not develop similar symptoms.CONCLUSION Whether ultrasound can be used as a routine and noninvasive imaging method for the diagnosis of SISMAD needs further exploration.展开更多
BACKGROUND Complications associated with upper gastrointestinal(UGI)endoscopy are uncommon,and rarely involve those of cardiovascular nature.We report herein a unique case of spontaneous superior mesenteric artery dis...BACKGROUND Complications associated with upper gastrointestinal(UGI)endoscopy are uncommon,and rarely involve those of cardiovascular nature.We report herein a unique case of spontaneous superior mesenteric artery dissection(SMAD)after UGI pandenoscopy.CASE SUMMARY A 45-year-old man who had previously undergone UGI panendoscopy and colonoscopy during a voluntary health check-up at our facility was admitted to the emergency room(ER)at the same facility due to persistent epigastric pain with radiation to the back.At the ER,the patient did not present notable abnormalities upon physical,conscious,or laboratory examinations apart from mild tenderness in the epigastric abdomen.Acute abdominal aortic dissection was suspected,and abdominal contrast-enhanced computed tomography confirmed SMAD.He was then transferred to the cardiovascular ward and treated conservatively with fasting,prostaglandin E1,and aspirin.The patient recovered and returned home soon after,and was symptom-free 6 months after discharge from the facility.CONCLUSION SMAD after UGI panendoscopic procedure is a previously unreported complication.Awareness of this complication and associated sequela is warranted.展开更多
目的探讨症状性孤立性肠系膜上动脉夹层(ISMAD)患者保守治疗与腔内治疗的效果。方法检索Web of Science、PubMed、中国知网、万方数据库中ISMAD患者保守治疗与腔内治疗效果,检索时间为建库至2022年10月1日,采用RevMan 5.3统计软件对文...目的探讨症状性孤立性肠系膜上动脉夹层(ISMAD)患者保守治疗与腔内治疗的效果。方法检索Web of Science、PubMed、中国知网、万方数据库中ISMAD患者保守治疗与腔内治疗效果,检索时间为建库至2022年10月1日,采用RevMan 5.3统计软件对文献进行Meta分析。结果共纳入文献11篇,664例ISMAD。Meta分析结果显示,腔内治疗组患者治疗有效率、远期夹层重塑率均明显高于保守治疗组患者,差异均有统计学意义(P﹤0.01)。两组患者腹痛复发率比较,差异无统计学意义(P﹥0.05)。结论腔内治疗ISMAD患者有效率、夹层重塑率均高于保守治疗,两者复发性腹痛发生率无差异,因此腔内治疗ISMAD值得在临床上进一步推广应用。展开更多
目的旨在探讨急诊腹部MDCT平扫多参数成像在自发性孤立性肠系膜上动脉夹层中的诊断价值。方法收集2018年1月~2021年03月以急性腹痛为首发症状入院的40例SISMAD患者,按1:1比例匹配同时间段内非SISMAD患者作为对照组。所有患者均行MDCT腹...目的旨在探讨急诊腹部MDCT平扫多参数成像在自发性孤立性肠系膜上动脉夹层中的诊断价值。方法收集2018年1月~2021年03月以急性腹痛为首发症状入院的40例SISMAD患者,按1:1比例匹配同时间段内非SISMAD患者作为对照组。所有患者均行MDCT腹部平扫,评估肠系膜上动脉管径(SMA-d)、肠系膜上动脉CT值(SMA-mean)、主动脉-肠系膜上动脉夹角(aortomesenteric angle,AM-a)及血管周围脂肪间隙模糊(p eriva s cu l ar fat stranding,PFS)。采用单因素、多因素Logi stic回归分析SMA-d、S M A-mean、A M-a、PF5与SISMAD之间关系。结果SISMAD组SMA-d明显高于对照组(分别为9.06±1.61mm、7.24±0.79mm,P<0.001);SMA-mean明显高于对照组(55.93±5.71HU、42.94±6.00HU,P=0.03);AM-a高于对照组(67.03±18.92°、48.19±13.99°,P<0.001);SISMAD组PFS患者明显多于对照组(分别为23例、4例,P<0.001)。多因素Logistic回归显示,SMA-d(O R=1.95,95%CI:1.05~3.61,P=0.033)和AM-a(OR=1.08,95%CI:1.02~1.15,P=0.007)、PFS(OR=1.08,95%CI:1.01-1.59,P=0.013)是SISMAD的独立风险因素。ROC分析显示,SMA-d诊断SISMAD敏感性、特异性为87.5%、94.4%,AUC值为0.83;AM-a诊断SISMAD敏感性、特异性为80.0%、77.8%,AUC值为0.81;PFS诊断SISMAD敏感性、特异性为85.2%、88.9%,AUC值为0.73。结论SISMAD在急诊腹部MDCT平扫上具有一定影像学特征,尤其SMA-d、AM-a及PFS可作为SISMAD的独立风险因素,具有较高诊断效能,可提示放射科医师SISMAD的存在并为进一步CTA成像检查提供依据,帮助患者及时治疗并改善预后。展开更多
基金supported by Clinical Scientific Research Fund of Zhejiang Medical Association(2021ZYC-A73)。
文摘BACKGROUND:Spontaneous isolated superior mesenteric artery(SMA)dissection(SISMAD)is a rare cause of abdominal pain.The aim of the study is to investigate the role of a new parameter,the ratio of the SMA diameter to the superior mesenteric vein(SMV)diameter(SMA/SMV)based on non-enhanced computed tomography(CT),in the early diagnosis of SISMAD.METHODS:In a registry study from December 2013 to June 2021,97 abdominal pain SISMAD patients(SISMAD group)admitted to our hospital were enrolled.Meanwhile,the matched sex and age abdominal pain non-SISMAD patients at 1:2 were collected in reverse chronological order as the control group.Student’s t-test,Wilcoxon rank-sum test,and Chi-square test were used to compare differences between the SISMAD and control groups.Med Calc was used to generate receiver operating characteristic(ROC)curve.RESULTS:A total of 291 abdominal pain patients,including 97 SISMAD patients and 194 nonSISMAD patients,were included in the current study.The maximum SMA diameter,perivascular exudation,and SMA/SMV based on non-enhanced CT were significant between the two groups(all P<0.05).ROC curves showed that for the maximum SMA diameter,the area under the curve(AUC),cut-off,sensitivity,and specificity were 0.926,9.80,93.8%,and 79.4%,respectively.For SMA/SMV,its AUC,cut-off,sensitivity,and specificity were 0.956,0.83,88.7%,and 92.3%,respectively.The diagnostic efficiency of SMA/SMV was better than that of the maximum SMA diameter(P<0.05).The combined parameters of SMA/SMV and maximum SMA diameter had the best diagnostic efficiency(AUC=0.970).CONCLUSION:SMA/SMV may be a potential marker for SISMAD.
文摘BACKGROUND Spontaneous isolated superior mesenteric artery dissection(SISMAD)is a rare disease that originates from the superior mesenteric artery,without the presence of aortic and other arterial dissections.Most cases are diagnosed using contrastenhanced computed tomography(CECT),whereas the application of ultrasound is less common.CASE SUMMARY Here,we report a case of SISMAD with sudden epigastric pain that worsened as the main symptom after eating.The patient had a long history of hypertension with unknown blood pressure control but no history of smoking or alcohol consumption.This case was initially diagnosed using ultrasound and the results were later confirmed by CECT.After admission,the patient fasted,followed by parenteral nutrition support and fluid supplementation to maintain electrolyte and acid–base balance.Metoprolol succinate sustained-release tablets and aspirin were given as nonoperative treatments.After 1 wk,the symptoms improved,and the patient was discharged.During telephone follow-up,the patient did not develop similar symptoms.CONCLUSION Whether ultrasound can be used as a routine and noninvasive imaging method for the diagnosis of SISMAD needs further exploration.
文摘BACKGROUND Complications associated with upper gastrointestinal(UGI)endoscopy are uncommon,and rarely involve those of cardiovascular nature.We report herein a unique case of spontaneous superior mesenteric artery dissection(SMAD)after UGI pandenoscopy.CASE SUMMARY A 45-year-old man who had previously undergone UGI panendoscopy and colonoscopy during a voluntary health check-up at our facility was admitted to the emergency room(ER)at the same facility due to persistent epigastric pain with radiation to the back.At the ER,the patient did not present notable abnormalities upon physical,conscious,or laboratory examinations apart from mild tenderness in the epigastric abdomen.Acute abdominal aortic dissection was suspected,and abdominal contrast-enhanced computed tomography confirmed SMAD.He was then transferred to the cardiovascular ward and treated conservatively with fasting,prostaglandin E1,and aspirin.The patient recovered and returned home soon after,and was symptom-free 6 months after discharge from the facility.CONCLUSION SMAD after UGI panendoscopic procedure is a previously unreported complication.Awareness of this complication and associated sequela is warranted.
文摘目的探讨症状性孤立性肠系膜上动脉夹层(ISMAD)患者保守治疗与腔内治疗的效果。方法检索Web of Science、PubMed、中国知网、万方数据库中ISMAD患者保守治疗与腔内治疗效果,检索时间为建库至2022年10月1日,采用RevMan 5.3统计软件对文献进行Meta分析。结果共纳入文献11篇,664例ISMAD。Meta分析结果显示,腔内治疗组患者治疗有效率、远期夹层重塑率均明显高于保守治疗组患者,差异均有统计学意义(P﹤0.01)。两组患者腹痛复发率比较,差异无统计学意义(P﹥0.05)。结论腔内治疗ISMAD患者有效率、夹层重塑率均高于保守治疗,两者复发性腹痛发生率无差异,因此腔内治疗ISMAD值得在临床上进一步推广应用。
文摘目的旨在探讨急诊腹部MDCT平扫多参数成像在自发性孤立性肠系膜上动脉夹层中的诊断价值。方法收集2018年1月~2021年03月以急性腹痛为首发症状入院的40例SISMAD患者,按1:1比例匹配同时间段内非SISMAD患者作为对照组。所有患者均行MDCT腹部平扫,评估肠系膜上动脉管径(SMA-d)、肠系膜上动脉CT值(SMA-mean)、主动脉-肠系膜上动脉夹角(aortomesenteric angle,AM-a)及血管周围脂肪间隙模糊(p eriva s cu l ar fat stranding,PFS)。采用单因素、多因素Logi stic回归分析SMA-d、S M A-mean、A M-a、PF5与SISMAD之间关系。结果SISMAD组SMA-d明显高于对照组(分别为9.06±1.61mm、7.24±0.79mm,P<0.001);SMA-mean明显高于对照组(55.93±5.71HU、42.94±6.00HU,P=0.03);AM-a高于对照组(67.03±18.92°、48.19±13.99°,P<0.001);SISMAD组PFS患者明显多于对照组(分别为23例、4例,P<0.001)。多因素Logistic回归显示,SMA-d(O R=1.95,95%CI:1.05~3.61,P=0.033)和AM-a(OR=1.08,95%CI:1.02~1.15,P=0.007)、PFS(OR=1.08,95%CI:1.01-1.59,P=0.013)是SISMAD的独立风险因素。ROC分析显示,SMA-d诊断SISMAD敏感性、特异性为87.5%、94.4%,AUC值为0.83;AM-a诊断SISMAD敏感性、特异性为80.0%、77.8%,AUC值为0.81;PFS诊断SISMAD敏感性、特异性为85.2%、88.9%,AUC值为0.73。结论SISMAD在急诊腹部MDCT平扫上具有一定影像学特征,尤其SMA-d、AM-a及PFS可作为SISMAD的独立风险因素,具有较高诊断效能,可提示放射科医师SISMAD的存在并为进一步CTA成像检查提供依据,帮助患者及时治疗并改善预后。
