Deutsche medizinische Wochenschrift (1946) · 1998
[The value of electrogastrography for the diagnosis of gastroenterologic function].
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Pfaffenbach B, Adamek R J, Lux G
Аннотация
BACKGROUND AND OBJECTIVE: Abnormalities of gastric myoelectric activity can be measured by electrogastrography (EGG). Such dysfunctions can be associated with disorders of gastric motility. It was the aim of this study to investigate the relationship between gastric electrical activity and motility in patients with dyspepsia due to gastrointestinal or extraintestinal disease.
PATIENTS AND METHODS: 135 consecutive patients with dyspepsia (standardized score) were enrolled in this prospective study including patients with functional dyspepsia (FD) (n = 25), dyspepsia in diabetes mellitus type II (n = 27), hyperthyroidism (n = 23), progressive systemic scleroderma (PSS) (n = 20), chronic alcoholism (n = 20), and 20 patients with gastric lesions: gastric ulcer (n = 10) or gastric cancer (n = 10). The EGG measurements were performed over 60 min pre- and post-prandially state after ingestion of a solid-liquid test meal (370 kcal). The following parameters were measured: dominant electrical frequency (DF), percentage of DF in the normal frequency range (2-4 cpm), bradygastria (< 2 cpm), tachygastria (4-10 cpm), dominant frequency instability coefficient (DFIC), and power ratio. The data were compared with results in 40 healthy persons. The gastric emptying was determined by the gastric retention of 99mTc colloid after 60 min (gamma camera).
RESULTS: Nearly 50% of FD patients had delayed gastric emptying (gastric retention after 60 min > 68%): they patients exhibited significantly more tachygastrias than those with normal gastric emptying (P < 0.05). Patients with diabetes mellitus type II, PSS and chronic alcoholism showed normal electrical activity, although gastric emptying was delayed in nearly 50%. The hyperthyroid patients had increased tachygastria without abnormal gastric motility. Gastric lesions did not produce pathological electrogastrograms. The dyspepsia score did not correlate with either EGG or radioscintigraphy in the various patient groups.
CONCLUSIONS: Electrogastrography can detect tachygastrias, which are significantly increased in some patients with functional dyspepsia. Because of therapeutic consequences electrogastrography seems to be indicated in patients with functional dyspepsia.
PATIENTS AND METHODS: 135 consecutive patients with dyspepsia (standardized score) were enrolled in this prospective study including patients with functional dyspepsia (FD) (n = 25), dyspepsia in diabetes mellitus type II (n = 27), hyperthyroidism (n = 23), progressive systemic scleroderma (PSS) (n = 20), chronic alcoholism (n = 20), and 20 patients with gastric lesions: gastric ulcer (n = 10) or gastric cancer (n = 10). The EGG measurements were performed over 60 min pre- and post-prandially state after ingestion of a solid-liquid test meal (370 kcal). The following parameters were measured: dominant electrical frequency (DF), percentage of DF in the normal frequency range (2-4 cpm), bradygastria (< 2 cpm), tachygastria (4-10 cpm), dominant frequency instability coefficient (DFIC), and power ratio. The data were compared with results in 40 healthy persons. The gastric emptying was determined by the gastric retention of 99mTc colloid after 60 min (gamma camera).
RESULTS: Nearly 50% of FD patients had delayed gastric emptying (gastric retention after 60 min > 68%): they patients exhibited significantly more tachygastrias than those with normal gastric emptying (P < 0.05). Patients with diabetes mellitus type II, PSS and chronic alcoholism showed normal electrical activity, although gastric emptying was delayed in nearly 50%. The hyperthyroid patients had increased tachygastria without abnormal gastric motility. Gastric lesions did not produce pathological electrogastrograms. The dyspepsia score did not correlate with either EGG or radioscintigraphy in the various patient groups.
CONCLUSIONS: Electrogastrography can detect tachygastrias, which are significantly increased in some patients with functional dyspepsia. Because of therapeutic consequences electrogastrography seems to be indicated in patients with functional dyspepsia.