• Title/Summary/Keyword: Transcranial ultrasonography

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The Effects of Appling Acupressure to Acupuncture Points against Headache Reduction and the Vertebral Artery Blood Flow of Tension-type Headache Patients (경혈지압치료가 긴장성 두통환자의 추골동맥 혈류속도와 통증감소에 미치는 효과)

  • Lee, Yun-Ho;Eom, Ki-Mae;Seo, Hyo-Seok;Yun, Young-Dae
    • Korean Journal of Acupuncture
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    • v.28 no.2
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    • pp.49-58
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    • 2011
  • Objectives : The purpose of this study is examining the effects of appling acupressure to acupuncture points (study group) and Interferential current therapy (ICT) to cervical region (control group) on the cerebral blood flow of 20 tension-type headache patients and the reduction of their headaches. For approaching this examination, clinical research was conducted for three weeks those two groups, each contains 10 patients. Methods : We stimulated 7 acupuncture points for headache with the acupressure (for three weeks) and applied ICT to cervical region. Also we measured VAS (visual analogue scale) and the blood flow of the vertebral arteries with TCD (transcranial doppler ultrasonography). Results : (1) When the left and right vertebral artery of study group was compared each time, significant differences were found after the 1st treatment (p<.001). Also the significant differences were found after 2, 3weeks treatment (p<.05). (2) When the Visual Analog Scale of study group were compared periodically, the significant reductions were found after the 1 week treatments (p<.05). Also the significant differences were found after 2, 3 weeks treatments (p<.001). In the case of the control group, the significant reduction were found after the 2 and 3 weeks treatments (p<.001). Conclusions : The acupressure applied to acupuncture points reduced the headache and increased the ratio of cerebral blood flow.

A Study on the Correlation of Mean Velocity of Basilar Artery and Equilibrium Function with Sasang Constitution (체질에 따른 기저동맥 평균 혈류속도와 균형 기능과의 상관관계에 대한 연구)

  • Lee, Joo-Yong;Choi, Jae-Song;Bae, Na-Young;Ahn, Taek-Won
    • Journal of Sasang Constitutional Medicine
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    • v.22 no.4
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    • pp.30-39
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    • 2010
  • 1. Objectives This study was carried out to investigate the equilibrium functional difference according to mean velocity of basilar artery with Sasang Constitution. 2. Methods We analyzed the data of 300 adults(194 males, 106 females), who visited oriental hospital of D university for medical examiation, which includes Sasang constitution examination, equilibrium function test, transcranial doppler ultrasonography(TCD). We evaluated the trace length and envelop area of open eyes and closed eyes, mean velocity of basilar artery and analyzed its statistical data. 3. Results and Conclusions 1) Within all subjects, trace length and envelop area of closed eyes were significantly lower, in the order of increased mean velocity of basilar artery group, normal mean velocity of basilar artery group and decreased mean velocity of basilar artery group. 2) No significantly difference was seen between the mean velocity of basilar artery and equilibrium function in Soyangin and Soeumin. 3) When closed eyes, trace length were significantly lower in order of increased mean velocity of basilar artery group, normal mean velocity of basilar artery group and decreased mean velocity of basilar artery group, in Taeeumin.

The Effects of Moxibustion at CV12 on Cerebral Blood Flow and Peripheral Blood Flow (중완(中脘)에 신기구 뜸시술이 뇌혈류 및 말초혈류 변화에 미치는 영향)

  • Kim, Do-Hyung;Park, Seung-Chan;Cho, Min-Kyoung;Kwon, Jung-Nam;Hong, Jin-Woo;Lee, In
    • The Journal of Internal Korean Medicine
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    • v.35 no.1
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    • pp.24-36
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    • 2014
  • Objectives : This study was performed to evaluate the effects of moxibustion on cerebral blood flow, peripheral blood flow and blood pressure. Methods : We designed a randomized, cross-over study that included 20 healthy, male volunteers who were randomly assigned to one of two groups (the moxibustion group or the control group). The initial trial was followed by a washout period of one week before the groups were switched and the trial repeated. The cerebral blood flow and peripheral blood flow of the volunteers in both groups were measured by mean velocity (Vm), peak systolic velocity (Vs), pulsatility index (PI), perfusion units (PU) and mean blood pressure (BP) before the intervention (baseline), 30 minutes after the intervention, and again 60 minutes after the intervention. Results : 1. The Vm increased significantly in the moxibustion group. The Vs also constantly increased in moxibustion group, but there was no significant difference. 2. The PI decreased significantly in the control group at 0-30 minutes and in the moxibustion group at 30-60 minutes. 3. The PU constantly decreased in moxibustion group. In control group, the PU decreased at 30 minutes and increased slightly at 60 minutes. 4. The mean blood pressure did not show any significant difference between the two groups. Conclusions : This study shows that moxibustion at CV12 increased the cerebral blood flow. Based on this result, we can suggest that moxibustion at CV12 might be helpful in improving the functional recovery of stroke patients. However, further research needs to be conducted on a larger numbers of subjects in order to confirm these effects.

Effects of Electrotherapy on Blood Velocity of Cranial Artery in Tension-Type Headache subjects (전기치료가 긴장형 두통환자의 뇌 혈류 속도에 미치는 영향)

  • Park Rae-Joon;Kim Jin-Sang;Lee In-Hak;Park Jang-hwan;Han Dong-Uck
    • The Journal of Korean Physical Therapy
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    • v.12 no.3
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    • pp.349-359
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    • 2000
  • The aim of study was to evaluated the possible role of cranial artery velocity in headache pathogenesis. The present study was studied of five headache(F=5. Mean $age=29.80\pm6.76yrs$) were compared to 4 controls(F=4, Mean $age=29.00\pm5.48yrs$). Transcranial doppler ultrasonography(TCD) is a new non-invasive and easily applicable method to evaluate flow velocities of the intracranial and extracranial cerebral arteries. TCD was performed with standard method to measure the mean Flow Velocity(MFV) of the middle and posterior cerebral arteries, the internal carotid artery, the vertebral and the basilar artery. We reviewed the whole TCD results performed at Taejon Veterans Hospital from October. 11. 2000 to November. 10. 2000. Mean flow velocities in headaches and controls at their 6 decades are $28.00\pm3.61cm/sec$ and $41.25pm1.71cm/sec$ in lent PCA (P<0.01), $50,000\pm23.07cm/sec$ and $82.75\pm15.59cm/sec$ in right MCA(P<0.05), $26.20\pm4.82cm/sec$ and $45.50\pm4.51cm/sec$ in fight PCA(P<0.01). $26.60\pm4.56cm/sec$ and $38.25\pm4.92cm/sec$ in right VAC(P<0.01). After treatment for 2 weeks, mean of velocity on pre treatment and post treatment and post treatment are $28.00\pm3.61cm/sec$ and $38.20\pm5.81cm/sec$ in left PCA (P<0.05), $26.20\pm4.827cm/sec$ and $39.20\pm5.54cm/sec$ in right PCA(P<0.05), $40.60\pm9.18cm/sec$ in right VA(P<0.01). It is concluded that Electrical Therapy for two weeks was effected to promote Mean Flow of Velocity in cranial artery. Mean of velocity in cranial artery with headaches observed in this study was lower than controls, but MFV was promote after treatment for 2 weeks.

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Case-control Study : Cerebral Blood Flow as Measured by TCD in Patients with Risk Factors for Stroke (TCD를 이용한 정상군과 중풍원인질환군의 혈류측정에 관한 비교연구)

  • Heo, Jeong-Eun;Kwon, Jung-Nam;Shin, Won-Tak;Kim, Jong-Deuk;Lee, Sang-Hee;Son, Yeoun-Hui;Kim, Young-Kyun
    • The Journal of Internal Korean Medicine
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    • v.28 no.2
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    • pp.250-261
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    • 2007
  • Objectives : The purpose of this study was to evaluate the blood flow using doppler ultrasound of the MCA, ACA, PCA, BA, ICA in the patients with risk factor for stroke. Methods : 110 patients with risk factor for stroke were selected who had hypertension, diabetes mellitus, hyperlipidemia, or heart disease, as well as 89 healthy adults who did not have any symptoms of those diseases. To evaluate the blood flow, the Vs and Vm of the MCA, ACA, PCA, BA, and ICA in the two groups were measured. Result : In normal healthy adults, subjects showed a decrease in the Vs and Vm: with advancing in age, there was a significant difference in the Vs of MCA, PCA, BA, and ICA. There was a significant difference in the Vm of MCA, PCA, BA, and ICA. In normal healthy adults, females showed high velocities in all examined vessels. There was a significant difference in the Vs of BA. There was a significant difference in the Vm of BA, and ICA. There was a decrease in the Vs, and Vm of all examined vessels of patients with risk factors for stroke in comparison with normal healthy adults. There was no significant difference in the Vs. There was a significant difference in the Vm of MCA, ACA, and PCA. Results were the same between patients aged under 50 and total patients in the Vs and Vm of examined vessels. There were differences between patients aged over 50 and total patients in the Vs of MCA, PCA, BA and for patients aged over 50; patients with risk factor for stroke who had hypertension, diabetes mellitus, hyperlipidemia, or heat disease has higher Vs than healthy adults. Conclusions : There was a significant difference in the blood flow velocity between patients with risk factors for stroke and healthy adults. However, this result was different from results of comparison of TCD findings between patients and healthy individuals by age. Therefore, more detailed studies about aged patients are needed.

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Significance of Microembolic Signals during Oxygen Inhalation in Patients with Prosthetic Mechanical Heart Valve (인공 기계 심장 판막 이식 환자에서 산소 흡입 중 미세색전 신호의 중요성)

  • 조수진;나찬영;이은일;민양기;권기한;이정주;백만종;오삼세;홍석근
    • Journal of Chest Surgery
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    • v.37 no.1
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    • pp.50-55
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    • 2004
  • Background: Transcranial Doppler ultrasonography (TCD) can detect microembolic signals (MES) in the patients with a potential embolic source. Clinical significance of MES has not been demonstrated in patients with prosthetic mechanical heart valves. We studied the correlation between cerebral thromboemoblic events after the mechanical heart valve surgery (MHVS) and residual MES during TCD monitoring with 100% oxygen inhalation in patients with mechanical heart valves. Material and Method: Twenty patients with previous cerebral thromboemoblic events after MHVS and a sex- and age-matched control group (n=30) were studied. TCD monitoring was performed from unilateral middle cerebral artery. After baseline monitoring for 20 minutes, 61 of oxygen was inspired for 40 minutes. Result: The site of valve and the duration after MHVS of the patients did not differ from those of controls. During baseline monitoring, there was no significant difference in MES prevalence or counts compared to controls. During oxygen inhalation, patients showed a higher MES prevalence (55%, 27.6%, p=0.045) and a more frequent MES counts (p=0.027) compared to controls. Conclusion: TCD monitoring with oxygen inhalation may be useful to differentiate clinically significant MES in patients with mechanical heart valve.

Central Nervous System Complications of Coronary Artery Bypass Grafting - Comparison Between Off-Pump CABG and Conventional CABG (관상동맥 우회술 후의 중추신경계 합병증 - 심폐바이패스를 사용하지 않은 관상동맥 우회술과 기존의 관상동맥 우회술의 비교)

  • Chang, Ji-Min;Lee, Jeong-Sang;Kim, Ki-Bong;Ahn, Hyuk;Yoon, Byung-Woo;Kim, Yong-Jin
    • Journal of Chest Surgery
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    • v.33 no.12
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    • pp.941-947
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    • 2000
  • Background: Central nervous system complication after coronary artery bypass grafting(CABG) is one of the major prognostic determinants and the use of the cardiopulmonary bypass(CPB) may increase the incidence of this devastating complication. In this study, the outcomes after off-pump CABG were studied and compared with those following the conventional CABG using CPB. Material and Method: Among the consecutive isolated CABG's performed in SNUH during Feb. 1995 and Jun. 1999, 338 coronary artery bypass grafting were divided into two groups. 223 patients underwent CABG using the CPB(Group I), and 115 patients underwent CABG without CPB(OPCAB)(Group II). All patients enrolled in this study received extensive preoperative examinations including thorough neurologic examination before and after surgery, transcranial doppler study, carotid duplex ultrasonography, and magnetic resonance angiography if necessary. Central nervous system(CNS) complications were defined as stroke, seizure, metabolic or hypoxic encephalopathy and transient delirium after surgery. Result: There were 61 cases(27.3%) who developed postoperative CNS complication in Group I, whereas 8 cases(7.0%) of CNS complications developed postoperatively in group II(p<0.05). Statistically significant predictors of postoperative CNS complications in group I were age and the use of cardiac assist devices perioperatively. Conclusion: This study suggested that omitting the use of CPB in CABG resulted in significant decrease of the postoperative CNS complications. OPCAB should be more widely applied especially to the elderly who have preexisting cerebrovascular disease.

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