AIM:To determine whether an increased number and duration of non-acid reflux events as measured using the multichannel intraluminal impedance pH(MII-pH)is linked to gastroparesis(GP).METHODS:A case control study was c...AIM:To determine whether an increased number and duration of non-acid reflux events as measured using the multichannel intraluminal impedance pH(MII-pH)is linked to gastroparesis(GP).METHODS:A case control study was conducted in which 42 patients undergoing clinical evaluation for continued symptoms of gastroesophageal reflux disease(both typical and atypical symptoms)despite acid suppression therapy.MII-pH technology was used over 24 h to detect reflux episodes and record patients’symptoms.Parameters evaluated in patients with documented GP and controls without GP by scintigraphy included total,upright,and supine number of acid and non-acid reflux episodes(pH<4 and pH>4,respectively),the duration of acid and non-acid reflux in a 24-h period,and the number of reflux episodes lasting longer than 5 min.RESULTS:No statistical difference was seen between the patients with GP and controls with respect to the total number or duration of acid reflux events,total number and duration of non-acid reflux events or the duration of longest reflux episodes.The number of nonacid reflux episodes with a pH>7 was higher in subjects with GP than in controls.In addition,acid reflux episodes were more prolonged(lasting longer than 5min)in the GP patients than in controls;however,these values did not reach statistical significance.Thirty-five patients had recorded symptoms during the 24 h study and of the 35 subjects,only 9%(n=3)had a positive symptom association probability(SAP)for acid/non-acid reflux and 91%had a negative SAP.CONCLUSION:The evaluation of patients with a documented history of GP did not show an association between GP and more frequent episodes of non-acid reflux based on MII-pH testing.展开更多
目的:评价复方樟柳碱(compound anisodine,CA)对眼压已控制的原发性开角型青光眼患者视神经的作用。方法:根据改良的HPA国际视野分期法,收集中期原发性开角型青光眼患者46例,随机分为CA组23例和对照组23例,分别接受复方樟柳碱颞浅动脉...目的:评价复方樟柳碱(compound anisodine,CA)对眼压已控制的原发性开角型青光眼患者视神经的作用。方法:根据改良的HPA国际视野分期法,收集中期原发性开角型青光眼患者46例,随机分为CA组23例和对照组23例,分别接受复方樟柳碱颞浅动脉旁注射和维脑路通片口服治疗,比较治疗前后视力、眼压、眼底、视野及视乳头血流情况。结果:CA组视野平均缺损值(mean of defect,MD)明显改善;两组眼动脉收缩期峰值血流速度(PSV)、舒张末期血流速度(EDV),视网膜中央动脉PSV、EDV、阻力指数(RI)较治疗前均有显著改善(P<0.05),且CA组改善程度优于对照组。结论:复方樟柳碱能有效改善原发性开角型青光眼患者的视功能和视乳头血流,保护视神经。展开更多
To enhance the clinical utility of electrogastrography (EGG), which has been recorded since 1922, but is clinically unutilized. METHODSAn innovative method to salvage the promise of EGG is proposed by introducing a pr...To enhance the clinical utility of electrogastrography (EGG), which has been recorded since 1922, but is clinically unutilized. METHODSAn innovative method to salvage the promise of EGG is proposed by introducing a preliminary procedure, while maintaining the electrodes, standardized equipment, and signal processing utilized in the well-established EGG testing of today. The proposed enhanced EGG (EEGG) protocol involves swallowing an ingestible capsule containing miniature electronic oscillator embedded in an expandable, self-disintegratable, biocompatible pseudobesoar residing in the stomach for the duration of the test. The benefits of the proposed approach are outlined, tested and discussed in details. RESULTSExperiments were performed on eight mongrel dogs (6F, 4M, 23.8 ± 3.3 kg). Four were administered an active EEGG capsule, while the rest were given a deactivated (battery removed) capsule. Pharmacologically facilitated gastric motility revealed a significant (P < 0.01) Pearson correlation between gastric motility indices obtained by force transducers implanted directly on the stomach, and the motility indices obtained by EEGG. A particular emphasis was made on preserving standard EGG-related hardware and software in order to facilitate the introduction of the proposed EEGG in environments which already utilize standard EGG testing. The expanded intragastric pseudobezoar containing the miniature electronic oscillator was retained during the tests, and could be disintegrated on demand. CONCLUSIONEnhancing standard EGG by an ingestible, self-expanding and self-disintegrating pseudobesoar containing a miniature electronic oscillator can be an important avenue for clinical applicability of this test.展开更多
文摘AIM:To determine whether an increased number and duration of non-acid reflux events as measured using the multichannel intraluminal impedance pH(MII-pH)is linked to gastroparesis(GP).METHODS:A case control study was conducted in which 42 patients undergoing clinical evaluation for continued symptoms of gastroesophageal reflux disease(both typical and atypical symptoms)despite acid suppression therapy.MII-pH technology was used over 24 h to detect reflux episodes and record patients’symptoms.Parameters evaluated in patients with documented GP and controls without GP by scintigraphy included total,upright,and supine number of acid and non-acid reflux episodes(pH<4 and pH>4,respectively),the duration of acid and non-acid reflux in a 24-h period,and the number of reflux episodes lasting longer than 5 min.RESULTS:No statistical difference was seen between the patients with GP and controls with respect to the total number or duration of acid reflux events,total number and duration of non-acid reflux events or the duration of longest reflux episodes.The number of nonacid reflux episodes with a pH>7 was higher in subjects with GP than in controls.In addition,acid reflux episodes were more prolonged(lasting longer than 5min)in the GP patients than in controls;however,these values did not reach statistical significance.Thirty-five patients had recorded symptoms during the 24 h study and of the 35 subjects,only 9%(n=3)had a positive symptom association probability(SAP)for acid/non-acid reflux and 91%had a negative SAP.CONCLUSION:The evaluation of patients with a documented history of GP did not show an association between GP and more frequent episodes of non-acid reflux based on MII-pH testing.
文摘目的:评价复方樟柳碱(compound anisodine,CA)对眼压已控制的原发性开角型青光眼患者视神经的作用。方法:根据改良的HPA国际视野分期法,收集中期原发性开角型青光眼患者46例,随机分为CA组23例和对照组23例,分别接受复方樟柳碱颞浅动脉旁注射和维脑路通片口服治疗,比较治疗前后视力、眼压、眼底、视野及视乳头血流情况。结果:CA组视野平均缺损值(mean of defect,MD)明显改善;两组眼动脉收缩期峰值血流速度(PSV)、舒张末期血流速度(EDV),视网膜中央动脉PSV、EDV、阻力指数(RI)较治疗前均有显著改善(P<0.05),且CA组改善程度优于对照组。结论:复方樟柳碱能有效改善原发性开角型青光眼患者的视功能和视乳头血流,保护视神经。
文摘To enhance the clinical utility of electrogastrography (EGG), which has been recorded since 1922, but is clinically unutilized. METHODSAn innovative method to salvage the promise of EGG is proposed by introducing a preliminary procedure, while maintaining the electrodes, standardized equipment, and signal processing utilized in the well-established EGG testing of today. The proposed enhanced EGG (EEGG) protocol involves swallowing an ingestible capsule containing miniature electronic oscillator embedded in an expandable, self-disintegratable, biocompatible pseudobesoar residing in the stomach for the duration of the test. The benefits of the proposed approach are outlined, tested and discussed in details. RESULTSExperiments were performed on eight mongrel dogs (6F, 4M, 23.8 ± 3.3 kg). Four were administered an active EEGG capsule, while the rest were given a deactivated (battery removed) capsule. Pharmacologically facilitated gastric motility revealed a significant (P < 0.01) Pearson correlation between gastric motility indices obtained by force transducers implanted directly on the stomach, and the motility indices obtained by EEGG. A particular emphasis was made on preserving standard EGG-related hardware and software in order to facilitate the introduction of the proposed EEGG in environments which already utilize standard EGG testing. The expanded intragastric pseudobezoar containing the miniature electronic oscillator was retained during the tests, and could be disintegrated on demand. CONCLUSIONEnhancing standard EGG by an ingestible, self-expanding and self-disintegrating pseudobesoar containing a miniature electronic oscillator can be an important avenue for clinical applicability of this test.
