• Korean Journal of Bronchoesophagology
• /
• v.2 no.1
• /
• pp.19-28
• /
• 1996

이상에서 고찰한 위식도역류의 병태를 간략히 요약하면 다음과 같다. 위액에는 염산, 펩신, 담즙산과 췌효소등을 포함하고 있어 역류된 위액은 상부 기관식도관에 자극을 주거나 손상을 줄 수 있으며 개개인의 점막 상피의 저항도와 적절한 타액의 분비는 위액에 의한 손상의 정도를 결정하는 중요한 요소로 알려져 있다. 위식도역류로 인한 많은 증상이나 소견은 두가지의 기전으로 나타나서 첫째, 역류된 위액이 직접 조직에 영향을 주거나 둘째, 간접적으로 식도 하부에 분포된 미주신경에 의한 연관자극에 의해 일어나는데 위식도역류의 증상 중 두부, 경부, 심장 및 폐장의 증상은 이들 장기에 미주신경의 일부가 같이 분포하여 일어나는 간접적인 기전이다. 하부식도괄약근(lower esophageal sphincter)의 기능은 역류를 막는 가장 중요한 요소로 알려져 있어 간헐적으로 하부식도 괄약근의 압력이 떨어지면 역류가 일어나게 된다. 정상적인 식도의 연동운동은 식도에 역류된 위내용물을 위로 제거되는데 중요하며 위식도역류 환자에서 흔히 연동운동이 저하되거나 비정상적인 연동운동을 관찰할 수 있다. 또한 위내용물이 소장으로 비워지는 시간이 연장되어 위내용물이 위내에 축적되는 것도 위식도역류의 원인의 하나로 생각된다. 이러한 위식도역류의 병태를 연구하는 것은 이 질환의 이해에 도움을 줄 것으로 생각된다.

• 건강소식
• /
• v.36 no.12
• /
• pp.40-41
• /
• 2012

복부비만은 어떻게 위식도역류질환을 일으키는가? 복부비만과 수면무호흡증이 쌍둥이 질환이듯 복부비만과 위식도역류질환도 함께 다니는 형제 질환이다. 위식도역류질환은 우리나라에서도 증가하는 추세로 40세 이후 성인에서 흔하게 발견되며, 위로 들어간 음식이나 위산이 식도로 다시 올라오는 증상이 나타난다.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.7 no.1
• /
• pp.48-53
• /
• 2004

Purpose: Besides interferencence of esophageal motor function by the nasogastric tube, a decline of the positive gastro-esophageal pressure gradient caused by intermittent positive pressure ventilation seems to have a major role in the pathogenesis of gastroesophageal reflux (GER) in mechanically ventilated preterm infants. The aim of this study was to determine the incidence of GER and associated risk factors in mechanically ventilated preterm infants. Methods: Twenty four hour esophageal pH monitorings were performed using a antimony electrode on 11 mechanically ventilated preterm infants in Neonatal Intensive Care Unit in Pusan National University Hospital. We evaluated the following reflux parameters; reflux index, reflux episodes/hour, reflux episodes ${\geq}5min/hour$, duration of longest episode, and percent episodes ${\geq}5min$. Patients were considered to have significant GER if more than 2 among 5 parameters were satisfied. Results: The mean gestational age of the patients was 30.9 weeks, mean birth weight was 1,568 g, and mean age at the time of pH monitoring was 2.8 days. Significant GER was detected in 4 patients (36.4%). There was no relationship between the incidence of GER and gestational age, birth weight, postnatal age, or the ventilator settings. Conclusion: The incidence of GER in mechanically ventilated preterm infants was similar, compared with other previous studies. Associated risk factors of GER in these patients were not detected. Therefore, mechanical ventilation in preterm infants does not seem to be the high risk factor of GER.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1996.04a
• /
• pp.83-83
• /
• 1996

저자들은 이 연구를 통해 인두신경증의 원인적 요소를 알아보고 진단에 필요한 검사법의 선정 및 치료율을 향상시킬 수 있는 약제의 선택에 도움을 받고자 하였다. 상세한 문진과 이학적 검사를 통해 선정된 73명을 대상으로 전례에서 식도조영술, 식도위 내시경, 식도내압 검사 및 24시간 산도(pH)검사를 시행하였다. 최소 추적기간은 3개월 이었으며 아래와 같은 결과를 얻었다. 1. 대상례중 남자는 24명, 여자는 49명이었다. 2. 식도조영술상 54례(74%)에서 정상소견을 보였다. 3. 식도내압검사상 49례(67.1%)에서 정상소견을 보였다. 4. 24시간 산도검사상 15례에서 명확한 위식도 역류가 관찰되었으며 17례에서는 경도의 위식도 역류를 보여 총 43.8%에서 위식도 역류가 확인되었다. 5. Omeprazole, prepulsid 및 diazepam의 복합요법으로 총 61례(83.6%)에서 증상이 완전소실되거나 호전되었다. 특히 24시간 산도검사에서 위식도역류가 있었던 예에서는 87.5%에서 호전이상의 반응이 있었으며 위식도역류가 없었던 예에서는 80.5%에서 반응을 보였다. 이상의 결과로 보았을 때 식도조영술은 진단적인 가치가 떨어지며 식도내압 검사와 함께 24시간 산도측정이 치료제의 선택과 치료율의 향상에 기여할 수 있다고 사료되었다.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.11 no.1
• /
• pp.12-20
• /
• 2008

Purpose: Chronic pulmonary disease may be caused by aspiration of gastric contents secondary to gastroesophageal reflux. At present, there is no gold standard for documenting pulmonary aspiration. The purpose of this study was to investigate the usefulness of radionuclide scintigraphy in the detection of gastroesophageal reflux and pulmonary aspiration. Methods: Thirty-five patients with suspected aspiration pneumonia, and five normal control subjects, were included in the study. All subjects underwent gastroesophageal reflux scintigraphy after the ingestion of a $^{99m}Tc$-tin colloid mixture. Dynamic images to detect gastroesophageal reflux were obtained for 1 hour. Additional static images of the chest, to detect lung aspiration, were obtained at 6 and 24 hours after oral ingestion of the tin colloid. In addition to visual analysis, pulmonary aspiration was quantitated by counting the number of pixels labeled with radioactive isotope in the region of interest (ROI) of both lung fields. Aspiration index (AI) was obtained by subtracting the pixel counts of the background from the pixel counts of the ROI. Results: Among 35 patients with suspected aspiration pneumonia, 23 proved to have gastroesophageal reflux by scintigraphy. One patient showed definite pulmonary accumulation of activity by visual analysis of the 6-hour image. Thirty of 35 (85.7%) patients showed higher AI beyond the upper limit of AI in the healthy controls. When we compared the reflux group with the non-reflux group, there was a significantly higher AI at 6 hours in the reflux group (p<0.05). Conclusion: The results suggest that radionuclide scintigraphy is useful in detecting small pulmonary aspiration in patients with suspected aspiration pneumonia secondary to reflux.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1996.04a
• /
• pp.84-84
• /
• 1996

인후두 이상감각을 주소로 내원한 환자들에서 주요한 원인 중의 하나로 위식도 역류가 관련되어 있다고 보고되고 있다. 이에 저자들은 이학적 검사 및 Esophagogram을 시행하여 기질적 원인을 배제한 후 인두신경증으로 진단받은 50명과 정상 대조군 30명을 이용하여 다음과 같은 결과를 얻었다. 1) 식도내압 검사상 상부식도압과 하부식도압에서 인두신경중 환자군과 대조군에서 유의한 차이는 없었다(UES : P = 0.56, LES P = 0.98). 2) 24시간 보행성 식도 pH검사에서 환자군과 대조군에서 앙와위시와 기립시 각각의 총역류 횟수, pH 4 미만으로 내려가는 역류횟수, 백분율, 5분이상 지속된 역류횟수, 최장역류시간 등을 비교한 바 양군간의 유의한 차이를 발견할 수 있었다(P<0.05). 3) 50명의 인두신경증 환자중 DeMester Scoring에 의해 의식도 역류 질환으로 진단받은 사람은 12명(24%)으로 위식도 역류가 인두신경증의 중요한 원인이 될 수 있음을 보여주었다.

• Proceedings of the KSLP Conference
• /
• 1998.11a
• /
• pp.187-187
• /
• 1998

위식도 역류 질환의 전형적인 증상에 반하여 인후두에서 나타나는 애성, 만성 기침, 헛기침, 인후두 이물감등의 비전형적인 증상에 대해 최근 관심이 높아지고 있다. 특히 애성이 주된 증상으로 나타나는 경우 일부에서 후두 후방에 점막의 비후 소견이나 육아종을 보이기도 하지만 많은 경우 후두내 기질적 병변을 찾기 어려울 때가 많으므로 의식도 역류 질환과 연관된 애성으로 진단하기 위해서는 자세한 병력 파악 및 이학적 검진, 그리고 위식도 역류 진단을 위한 검사 둥이 요구된다. 저자들은 인후두 이물감을 주소로 내원하여 위식도 역류 검사상 위식도 역류 질환으로 판명되었던 환자 중 애성이 동반된 환자 20례에 대하여 치료전 음성 검사를 시행하였으며 일반적인 치료 후 8주째 추적 검사를 시행하여 그 결과를 문헌 고찰과 함께 보고하고자 한다. (중략)

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.6 no.1
• /
• pp.17-23
• /
• 2003

Purpose: The aim of this study was to determine clinical significance of dual-probe esophageal pH monitoring and to compare four pH monitoring parameters between proximal and distal esophagus in pathological gastroesophageal reflux disease with recurrent respiratory symptoms. Methods: Among the thirty-four patients who were performed 24 hr pH monitoring, seventeen patients with pathological distal reflux were classified into two groups: Group I (n:12) had recurrent respiratory symptoms and Group II (n:5) hadn't recurrent respiratory symptoms. The ambulatory dual-probe esophageal pH monitoring was performed for 18~24 hr. A pathologic GER was defined when reflux index (percent of the investigation time a pH<4) exceeded the 95th percentile of normal value. Results: Among the sixteen patients with recurrent respiratory symptoms, twelve patients (75%) have pathological distal reflux. Whereas among the eighteen patients without recurrent respiratory symptom, five patients (28%) have pathological distal reflux. In the Group I, the significant differences between proximal and distal esophageal pH recordings persisted for all parameters, but didn't persist in group II except for longest episode. Comparing esophageal pH four parameters between group I and group II at the proximal esophageal site, all parameters didn't show statistically significant differences. Conclusion: Regardless of respiratory symptoms, patients with pathological distal reflux didn't show statistically significant differences in the all parameters at the proximal esophageal site. Therefore we may reconsider usefulness of dual probe pH meter in patients with recurrent respiratory symptoms.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.8 no.2
• /
• pp.143-149
• /
• 2005

Purpose: The aim of this study was to evaluate the significance of pH monitoring at two levels, hypopharynx and esophagus in gastroesophageal reflux. Methods: 29 patients with pathological gastroesophageal reflux were classified into two groups: Group I had recurrent respiratory symptoms and Group II had not recurrent respiratory symptoms. The ambulatory pH monitoring was performed at the hypopharynx and the esophagus simultaneously with two channel catheter for 18~24 hr. The pathological reflux was defined when the percent of time that pH was below 4.0 exceeding the 95th percentile of normal value. Hypopharyngeal reflux was defined as the pharyngeal pH drops below 4. Results: 39 patients were performed pH monitoring at the level of hypopharynx and esophagus for 24 hours. Among 7 patients with chronic respiratory symptom, 6 patients (85.7%) have pathological esophageal reflux. Among 32 patients without chronic respiratory symptom, 23 patients (71.8%) have pathological esophageal reflux. Thus 29 out of 39 patients (74%) have pathological esophageal reflux. In the Group I, all parameters except the longest episode showed significant differences between hypopharyngeal and esophageal pH monitoring. None of parameters showed significant differences between group I and II in the pharyngeal pH monitoring. Conclusion: Regardless of presence of respiratory symptoms, the pH monitoring at the pharyngeal level in patients with gastroesophageal reflux did not showed any differences compared with the esophageal pH monitoring. Therefore we may reconsider the usefulness of hypopharyngeal pH monitoring in patients with chronic respiratory symptoms.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.3 no.1
• /
• pp.9-16
• /
• 2000

Purpose: The aim of this study was to determine how much acid exposure would occur in the proximal esophagus, both in normal and in patients with abnormal distal esophageal acid exposure. Methods: Fourty-six patients with suspected GER were classified into two groups, 24 patients with pathological distal reflux (group I); 22 patients with normal distal reflux (group II). The ambulatory dual-probe esophageal pH monitoring was performed for 18-24hr. The abnormal reflux was defined when the percent of time that pH was below 4.0 exceeded the 95th percentile of normal value. Results: The siginficant differences between distal and proximal esophageal pH recordings in group I persisted for all parameters except for the longest episode, but didn't persist in group II. At the distal esophageal site, the median percent time with pH<4.0 in group I was 19.3 and significantly higher than at proximal site. Half of patients with pathological distal reflux also had proximal acid reflux. Correlation coefficients between the distal and proximal esophageal sites in group I of the number of reflux episodes and time of the longest episode were 0.451 and 0.646 respectively. Conclusion: The 50 percent of patients with pathological distal acid reflux also had abnormal acid exposure in the proximal esophageal site. Therefore, we recommand simultaneous pH recordings from dual probe esophageal sites in children with gastroesophageal reflux.