• 대한한방내과학회지
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• 제41권3호
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• pp.467-477
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• 2020

Objectives: This study investigated the cutaneous electrogastrogram (EGG) and other clinical characteristics of dyspeptic patients who have been diagnosed with Stomach Qi Deficiency (SQD) using the Scale for Stomach Qi Deficiency (SSQD). Methods: This study reviewed the clinical records of 38 patients with dyspepsia who were evaluated with SSQD and EGG at the Department of Digestive Diseases of Kyung Hee University Korean Medicine Hospital in Seoul, Korea from November 1, 2019 to February 29, 2020. We evaluated the EGG and other clinical characteristics of the SQD patients to determine if there was an association between the SSQD scores and the EGG. Results: In terms of the EGG, the SQD patients showed no significant increase in the percentage of normal slow wave after a meal and a slightly decreased power ratio at Channel 1 and Channel 2. We also found an association between the SSQD scores and the EGG parameters at Channel 1 and Channel 3. The average Ryodoraku score of the patients was 33.00±14.90 (μA). In the Heart Rate Variability (HRV) test, the average Total Power (TP) and Low Frequency/High Frequency (LF/HF)) ratio was 1356.60±13 6.41(ms²) and 1.68±2.25, respectively. Conclusions: The results of this study suggest that clinicians can use Electrogastrography to enhance accuracy when diagnosing the SQD pattern.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 추계학술대회
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• pp.403-406
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• 1997

Electrogastrogaphy(EGG) is the technique by which gastric myoelectrical activity is recorded noninvasively, from electrodes on the abdominal skin. Despite many attempts made over the decades, the clinical application of the EGG signal has not improved to the identification of waveform characteristics using comparison of EGG signal to be detected other EGG system. Cutaneous measurements of EGG are yet to be standardized in methods of detection and analysis. This may be responsible in part for some of the variability in the results. Thus, we develope EGG system composed of amplifiers, analysis methods, patient database or standardization. we introduce configurations of EGG system and their functions. Several important EGG parameters are introduced, including the dominant frequency and power of the EGG, the relative, period EGG-dominant frequency and power, the instability coefficient of EGG-dominant frequency and power, standard deviation, the percentage of running spectrum activity of gastric slow waves.

• 대한의용생체공학회:의공학회지
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• 제21권6호
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• pp.543-549
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• 2000

위전도(Electrogastrography, EGG)는 복부에 전극을 부착하여 위에서 발생하는 위 근육의 전기적인 활동성(gastric electrical activity)을 측정하는 방법으로, 비관혈적이며 다른 검사에 비해 측정비용이 적게 든다. 그러나 위전도 신호는 주파수가 매우 낮으며(0.2~10cpm) 진폭이 매우 작기(10~100 $\mu$V) 때문에 측정에 어려움이 있으며, 분석이 어려워 아직까지 위전도 신호해석에 대한 이론이 정립되어 있지않다. 본 연구에서는 running spectrum 분석을 이용한 4채널 위전도 시스템을 개발하여 위에서 발생하는 활동전위를 측정하였다. 본 연구에서 개발한 4채널 위전도 시스템의 4개 채널 중 가장 3 cpm 백분율이 높은 베스트 채널과, 상용화된 1채널 시스템인 Digitrapper EGG와 같은 전극부착 위치인 채널 1의 3 cpm 백분율을 비교하였다. 베스트 채널과 채널 1의 식전 평균 3 cpm 백분율은 각각 89.5%와 83.2%이었으며 통계적으로 유의하였다(p〈0.001). 식후에는 평균 3 cpm 백분율이 각각 90.4%와 76.5%이었으며 통계적으로 유의하였다(p〈0.001). 결론적으로 1채널위전도 측정기로서는 각 개인의 다양한 위의 위치를 커버할 수 없으며 그에 따른 오진을 초래할 수도 있으므로 1채널 위전도 측정기보다 4채널 위전도 측정기가 더 우수하다는 것을 확인하였다.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1996년도 추계학술대회
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• pp.182-184
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• 1996

Electrogastrography(EGG) is the technique by which gastric myoelectrical activity is recorded noninvasively, from surface electrodes on the abdominal skin. In older to know the relation between the signal of the gastric mil and the EGG signal, we measured the gastric myoelectrical activity in animals using surface electrodes and serosal electrodes, and measured the gastric contraction simultaneously using a strain gauge attached to the gastric wall we compared the signals with and without the gastric contraction.

• 대한한의진단학회지
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• 제13권2호
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• pp.34-44
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• 2009

Background : Currently, as a method of standardization of prescription, questionnaire for Buzhongyiqi-Tang[補中益氣湯] was developed, and which is a Objectives : The purpose of this thesis is to testify whether differentiation of Lao Juan Shang[勞倦傷] etiology is relative to mobility of gastric smooth muscle. Methods : The subjects(20 to 65 years old; 14 males, 46 females) were isolated from drinking alcohols for 24 hours before the experiment, and fasted for 8 hours, and measured for electrogastrography(EGG) and they filled out Questionnaire for Buzhongyiqi-Tang. Results : 1. Six factors from the factor analysis of Questionnaire for Buzhongyiqi -Tang were named and classified as Spleen-Qi deficiency syndrome factor [脾虛] (factor 1), Lung-Qi deficiency syndrome factor [肺虛] (factor 2), Working factor [習慣] (factor 3), Yin-Fire factor [陰火] (factor 4), Jung-Qi deficiency syndrome factor [中氣虛] (factor 5), and Stomach-Qi deficiency syndrome factor [胃虛] (factor 6). 2. As for the reliability of Questionnaire for Buzhongyiqi-Tang, we used Cronbach's alpha coefficient. Cronbach's alpha coefficient was 0.772 for the mean of the item-total. 3. Lung-Qi deficiency syndrome factor(factor2) had significant correlation with Bradygastria Time (r=-0.312, p<0.05). 4. Working factor(factor3) had significant correlation with Bradygastria Time (r=-0.329, p<0.05). 5. Yin-Fire factor(factor4) had significant correlation with Power Ratio (r=-0.328, p<0.05). Conclusions : It is shown that Bradygastria Time and Power Ratio tended to decrease against postprandial DP increased and postprandial frequency decreased in normal case.

• Journal of Acupuncture Research
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• 제25권4호
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• pp.95-103
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• 2008

Objectives : This study was to investigate the regulatory effect of electro-acupuncture on Jogsamni ($ST_{36}$) in bradygastric condition or gastroparesis which is a neuropathic complication of type 2 diabetes mellitus(T2DM), assessed using 4-channel electrogastrography (EGG). Methods : It was a case series study. Each patient was given electro-acupuncture(EA) one point, Jogsamni($ST_{36}$) or Gyeonu($LI_{15}$) bilaterally for thirty minutes with 2Hz bipolar square wave frequency and moderate intensity of stimulation. With attaching electrodes around stomach region throughout pre-acupuncture, acupuncture, and post-acupuncture session, these parameters were produced; percent rate of bradygastria power compared to sum of power in all kind of gastric rhythm(% bradygastria), dominant frequency(DF) and dominant power(DP). Parameter was analysed per each channel's variable change from pre-acupuncture session by paired t-test. Results : There was statistically significant decrease in % bradygastria parameters on one of the $ST_{36}$ treated patients from pre-acupuncture session and to post-acupuncture session(P=0.015, P=0.008 respectively). A marginal significant decrease of DP was shown in the other $ST_{36}$ treated patient from pre-acupuncture session through post-acupuncture session(P=0.049). Combined data of two $ST_{36}$ Treated patients showed that there was significant decrease of %bradygastria from pre-acupuncture session to acupuncture session(P=0.020), and was decrease of DP from pre-acupuncture session to post- acupuncture session(P=0.020). Conclusions : EA at $ST_{36}$ resulted in statistically significant decrease in %bradygastria and DP for dysrhythmic condition in T2DM gastroparesis patients. Considering this limited results, further study will be needed to elucidate the effect of multiple-acupuncture on gastric myoelectrical activities.

• 대한한방내과학회지
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• 제26권2호
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• pp.360-368
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• 2005

Background & Object: The aim of this study was to investigate the effects of Traditional Korean medical therapy on gastric myoelectrical activity in patients with functional dyspepsia. Methods: 29 patients(male 10, female 19) were divided into two groups; Inpatient group(N=10, male 1, female 9) and outpatient group(N=19, male 9, female 10). 10 healthy people participated in this study as normal controls. Gastric motility was recorded and analyzed by electrogastrography(EGG) during fasting and postprandial periods. Hospital treatment included electroacupuncture on ST36, acupuncture, and herbal medicine. Outpatients were treated with herbal medicine and acupuncture. Inpatients underwent hospital treatment for two weeks, and after discharge they were treated as outpatients for six weeks. In inpatient group, EGG was recorded before and after hospital treatment and it was recorded at six weeks after discharge. In outpatient group, EGG was recorded before starting treatment and it was recorded once a every six weeks for twelve weeks. Results: There was no significant difference in EGG parameters between before and after therapy in outpatient group. In inpatient group, postprandial normal slow wave increased after hospital treatment(from $33.94{\pm}14.13$ to $62.63{\pm}20.18$, p<0.05) and postprandial tachygastria decreased(from $43.53{\pm}13.99$ to $28.30{\pm}16.63$, p<0.05) and arrhythmia decreased(from $20.35{\pm}15.91$ to $5.67{\pm}6.80$, p<0.05). Conclusions: Results suggest that hospital treatment through electroacupuncture on ST36, acupuncture, and herbal medicine is useful to improve gastric myoelectrical activity in Patients with Functional Dyspepsia.

• 대한한방내과학회지
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• 제26권1호
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• pp.265-274
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• 2005

Diabetic gastroparesis is a disorder in a diabetic of delayed gastric emptying in the absence of mechanical obstruction. It is estimated that about 20%-50% of diabetics suffer from gastroparesis. Clinical Sympoms include early satiety, bloating, nausea, anorexia, vomiting, abdominal pain, and weight loss. Severe gastroparesis might result in recurrent hospitalization, malnutrition, and even death, but, no exact treatment has yet been established. Electrogastrography has been known to be a simple, non-invasive, and effective method in assessing gastric motility and EGG has been used to diagnosis diabetic gastroparesis and to estimate its prognosis. Recently, two cases of diabetic gastroparesis were observed. For this cases, manual acupucture, electroacupucture, lumbar skin warming and herb medicine were applied. After application of these therapies, gastrointestinal symptoms improved and these therapeutic effects were confirmed in EGG. Moreover, blood glucose control improved, so patients were able to discontinue insulin injection and change to p.o.medication. In light of this encouraging application of oriental medicine, this is reported along with investigation of the literature.

• 대한한방내과학회지
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• 제25권2호
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• pp.344-351
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• 2004

Systemic sclerosis Sine scleroderma(ssSSc) is an uncommon subtype of Systemic sclerosis(SSc), which is believed to attack internal organs without causing changes in the skin. Electrogastrography has been known to be a simple, non-invasive, and effective method in assessing gastric motility. In this new study, a case of Systemic sclerosis Sine Scleroderma exhibiting gastric symptoms was observed. For this, we applied herbal medicine. manual acupucture, electro-acupucture, and lumbar skin wanning. After applying these therapies, both systemic and dyspeptic symptoms of the patient improved. Electrogastrography suggests a relation between gastric myoelectrical activity and the patient's improvement in dyspeptic symptoms. Therefore, based on study of Oriental medical classics and recent medical articles, clinically emperical success in treating gastric dysmotility was seen in a patient with Systemic sclerosis Sine Scleroderma.

• 대한한방내과학회지
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• 제45권3호
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• pp.519-531
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• 2024

Objectives: This case study reports the effectiveness of Korean medical treatment in a patient with cyclic vomiting syndrome. Methods: A 29-year-old female Korean patient with cyclic vomiting syndrome received acupuncture, electroacupuncture, herbal medicine, and moxibustion for 2 weeks in hospital. Changes in symptoms were evaluated using the Gastrointestinal Symptom Rating Scale (GSRS), Visual Analog Scale (VAS), Index for Nausea, Vomiting, and Retching (INVR), Nausea Severity Scale (NSS), Nepean Dyspepsia Index-Korean version (NDI-K), quality of life using the Functional Dyspepsia Related Quality of Life questionnaire (FD-QoL), and gastric motility using electrogastrography (EGG). Results: Post-treatment, the patient showed high satisfaction and improvement in symptoms of nausea and vomiting. The following changes were observed in scores: GSRS: 23 to 19; VAS of nausea: 88 to 95; VAS of dyspepsia: 95 to 12; INVR: 13 to 1; NSS: 17 to 5; NDI-K: 107 to 78; and FD-QoL 84 to 27. We also found positive results in Channel 3 of EGG parameters, implying the improvement of gastric motility disorder. Conclusion: Korean medical treatment can be a therapeutic option for cyclic vomiting syndrome.