AIM:To investigate recurrent variceal hemorrhage and long-term survival rates of patients treated with partial proximal splenorenal venous shunt.METHODS:Patients with variceal hemorrhage who were treated with small-di...AIM:To investigate recurrent variceal hemorrhage and long-term survival rates of patients treated with partial proximal splenorenal venous shunt.METHODS:Patients with variceal hemorrhage who were treated with small-diameter proximal splenorenal venous shunt in Ruijin Hospital between 1996 and 2009 were included in this study.Shunt diameter was determined before operation using Duplex Doppler ultrasonography.Peri-operative and long-term results in term of rehemorrhage,encephalopathy and mortality were followed up.RESULTS:Ninety-eight patients with Child A and B variceal hemorrhage received small-diameter proximal splenorenal venous shunt with a diameter of 7-10 mm.After operation,the patients’mean free portal pressure (P<0.01)and the flow rate of main portal vein(P< 0.01)decreased significantly compared with that before operation.The rates of rebleeding and mortality were 6.12%(6 cases)and 2.04%(2 cases),respectively.Ninety-one patients were followed up for 7 mo-14 years (median,48.57 mo).Long-term rates of rehemorrhage and encephalopathy were 4.40%(4 cases)and 3.30% (3 cases),respectively.Thirteen patients(14.29%)died mainly due to progressive hepatic dysfunction.Fiveand ten-year survival rates were 82.12%and 71.24%,respectively.CONCLUSION:Small-diameter proximal splenorenal venous shunt affords protection against variceal rehemorrhage with a low occurrence of encephalopathy in patients with normal liver function.展开更多
Aim. Comparison of the trascranial Doppler (TCD) characteristics of cerebral circulation in persistent vegetative status (PVS), locked in syndrome and brain death patients. Methods. Using ...Aim. Comparison of the trascranial Doppler (TCD) characteristics of cerebral circulation in persistent vegetative status (PVS), locked in syndrome and brain death patients. Methods. Using TCD ultrasound to detect the flow velocity and waveform patterns of middle cerebral artery (MCA) and basilar artery (BA) in patients with PVS, locked in syndrome and brain death. Results. The mean velocities of middle cerebral artery (Vmca) and basilar artery (Vba) were 30.0cm/s and 24.3cm/s in PVS patients respectively, which decreased 45.0% and 14.4% in comparing with normal value. For patients with locked in syndrome, Vmca and Vba were 49.7cm/s and 9.8cm/s, which decreased 5.0% and 61.7% than the normal value respectively. These results showed that the decrease of anterior circulation was predominant in PVS, and the decrease of posterior circulation was predominant in locked in syndrome. A unique diastolic reverse flow, short peak systolic wave or undetectable flow signal in middle cerebral artery were predominant in brain death patients, which was completely different from that of either PVS or locked in syndrome. Conclusion. TCD was a valuable tool in distinguishing PVS, locked in syndrome and brain death patients according to the differences in velocities and patterns of anterior and posterior cerebral arteries.展开更多
Objective To determine the effect of thinking on intracranial blood flow velocities.Methods Transcranial Doppler(TCD)was used to measure the blood flow velocities of the cerebral arteries,when 10 normal persons were a...Objective To determine the effect of thinking on intracranial blood flow velocities.Methods Transcranial Doppler(TCD)was used to measure the blood flow velocities of the cerebral arteries,when 10 normal persons were at rest and during thinking.Results The mean flow velocities(MFVs)of the cerebral arteries during thinking were significantly higher than those at rest,especially in the MCA and ACA.The MFVs were raised from between 10.3% to 14.3%.Conclusions Thinking can increase the blood flow velocities of cerebral arteries significantly.展开更多
Objective： To observe the clinical efficacy of acupuncture treatment for migraine. Methods： Forty cases were randomly allocated to a treatment group and a control group, 20 cases in each group. Cases in the treatmen...Objective： To observe the clinical efficacy of acupuncture treatment for migraine. Methods： Forty cases were randomly allocated to a treatment group and a control group, 20 cases in each group. Cases in the treatment group were treated with acupuncture, while cases in the control group were treated with oral Sibelium. After that, the changes of cerebral blood flow were observed before and after treatment. Results： There was significant difference in clinical efficacies between two groups （P〈0.05）. There were also significant differences in arterial blood flow velocities of before and after treatment. Acupuncture can produce substantial differences （P〈0.05） in blood flow velocities of vertebral artery （VA）, middle cerebral artery （MCA） and anterior cerebral artery （ACA） during an increased flow rate. It can also produce statistical differences in blood flow velocities of VA during a decreased flow rate （P〈0.05）. Conclusion： Acupuncture can effectively alleviate the pain of migraine sufferers and exert a two-way regulation on the cerebral blood flow.展开更多
文摘AIM:To investigate recurrent variceal hemorrhage and long-term survival rates of patients treated with partial proximal splenorenal venous shunt.METHODS:Patients with variceal hemorrhage who were treated with small-diameter proximal splenorenal venous shunt in Ruijin Hospital between 1996 and 2009 were included in this study.Shunt diameter was determined before operation using Duplex Doppler ultrasonography.Peri-operative and long-term results in term of rehemorrhage,encephalopathy and mortality were followed up.RESULTS:Ninety-eight patients with Child A and B variceal hemorrhage received small-diameter proximal splenorenal venous shunt with a diameter of 7-10 mm.After operation,the patients’mean free portal pressure (P<0.01)and the flow rate of main portal vein(P< 0.01)decreased significantly compared with that before operation.The rates of rebleeding and mortality were 6.12%(6 cases)and 2.04%(2 cases),respectively.Ninety-one patients were followed up for 7 mo-14 years (median,48.57 mo).Long-term rates of rehemorrhage and encephalopathy were 4.40%(4 cases)and 3.30% (3 cases),respectively.Thirteen patients(14.29%)died mainly due to progressive hepatic dysfunction.Fiveand ten-year survival rates were 82.12%and 71.24%,respectively.CONCLUSION:Small-diameter proximal splenorenal venous shunt affords protection against variceal rehemorrhage with a low occurrence of encephalopathy in patients with normal liver function.
文摘Aim. Comparison of the trascranial Doppler (TCD) characteristics of cerebral circulation in persistent vegetative status (PVS), locked in syndrome and brain death patients. Methods. Using TCD ultrasound to detect the flow velocity and waveform patterns of middle cerebral artery (MCA) and basilar artery (BA) in patients with PVS, locked in syndrome and brain death. Results. The mean velocities of middle cerebral artery (Vmca) and basilar artery (Vba) were 30.0cm/s and 24.3cm/s in PVS patients respectively, which decreased 45.0% and 14.4% in comparing with normal value. For patients with locked in syndrome, Vmca and Vba were 49.7cm/s and 9.8cm/s, which decreased 5.0% and 61.7% than the normal value respectively. These results showed that the decrease of anterior circulation was predominant in PVS, and the decrease of posterior circulation was predominant in locked in syndrome. A unique diastolic reverse flow, short peak systolic wave or undetectable flow signal in middle cerebral artery were predominant in brain death patients, which was completely different from that of either PVS or locked in syndrome. Conclusion. TCD was a valuable tool in distinguishing PVS, locked in syndrome and brain death patients according to the differences in velocities and patterns of anterior and posterior cerebral arteries.
文摘Objective To determine the effect of thinking on intracranial blood flow velocities.Methods Transcranial Doppler(TCD)was used to measure the blood flow velocities of the cerebral arteries,when 10 normal persons were at rest and during thinking.Results The mean flow velocities(MFVs)of the cerebral arteries during thinking were significantly higher than those at rest,especially in the MCA and ACA.The MFVs were raised from between 10.3% to 14.3%.Conclusions Thinking can increase the blood flow velocities of cerebral arteries significantly.
文摘Objective： To observe the clinical efficacy of acupuncture treatment for migraine. Methods： Forty cases were randomly allocated to a treatment group and a control group, 20 cases in each group. Cases in the treatment group were treated with acupuncture, while cases in the control group were treated with oral Sibelium. After that, the changes of cerebral blood flow were observed before and after treatment. Results： There was significant difference in clinical efficacies between two groups （P〈0.05）. There were also significant differences in arterial blood flow velocities of before and after treatment. Acupuncture can produce substantial differences （P〈0.05） in blood flow velocities of vertebral artery （VA）, middle cerebral artery （MCA） and anterior cerebral artery （ACA） during an increased flow rate. It can also produce statistical differences in blood flow velocities of VA during a decreased flow rate （P〈0.05）. Conclusion： Acupuncture can effectively alleviate the pain of migraine sufferers and exert a two-way regulation on the cerebral blood flow.
