Spontaneous Passage of Gastrointestinal Foreign Bodies in Children / 대한소아소화기영양학회지

PURPOSE: Ingested foreign bodies are removed by endoscopy, surgery or spontaneous passage, however, the decision of therapeutic modality chosen depends on the type, size, shape and location of the ingested foreign bodies. Therefore, this study was conducted to investigate the rate and characteristics of foreign bodies that were passed spontaneously out of the intestine. METHODS: One hundred and sixty patients who visited Samsung Medical Center for treatment of gastrointestinal foreign bodies between January 2001 to July 2007 were enrolled in this study. Related data was colleted by reviewing the medical records of patients with proven foreign bodies retrospectively, as well as by conducting phone interviews with the parents of the patients. All cases were classified based on the nature and location of the ingested foreign body, as well as whether it was treated by spontaneous passage. RESULTS: Of the 160 cases involving the passage of foreign bodies in children were included in this study (95 boys and 65 girls), endoscopic removals, operative removals or spontaneous passages were conducted in 80, 3 and 77 patients, respectively. The spontaneous passage rates for each type of object were as follows; coins (36.5%), bead and baduk stones (83.3%), long and sharp materials (52.6%), magnets (69.2%) and disc batteries (50.0%). In cases involving round-shaped foreign bodies, such as coins, the diverse spontaneous passage rates were more diverse. When foreign bodies were stuck below esophagus, similar sized coins and baduk stones had spontaneous passage rates greater than 80% regardless of age. CONCLUSION: It is better for clinicians to wait for spontaneous passage to occur in cases involving coins or round-shaped foreign bodies that are located at or below the stomach.

Spontaneous Passage of Gastrointestinal Foreign Bodies in Children / 대한소아소화기영양학회지

PURPOSE: Ingested foreign bodies are removed by endoscopy, surgery or spontaneous passage, however, the decision of therapeutic modality chosen depends on the type, size, shape and location of the ingested foreign bodies. Therefore, this study was conducted to investigate the rate and characteristics of foreign bodies that were passed spontaneously out of the intestine. METHODS: One hundred and sixty patients who visited Samsung Medical Center for treatment of gastrointestinal foreign bodies between January 2001 to July 2007 were enrolled in this study. Related data was colleted by reviewing the medical records of patients with proven foreign bodies retrospectively, as well as by conducting phone interviews with the parents of the patients. All cases were classified based on the nature and location of the ingested foreign body, as well as whether it was treated by spontaneous passage. RESULTS: Of the 160 cases involving the passage of foreign bodies in children were included in this study (95 boys and 65 girls), endoscopic removals, operative removals or spontaneous passages were conducted in 80, 3 and 77 patients, respectively. The spontaneous passage rates for each type of object were as follows; coins (36.5%), bead and baduk stones (83.3%), long and sharp materials (52.6%), magnets (69.2%) and disc batteries (50.0%). In cases involving round-shaped foreign bodies, such as coins, the diverse spontaneous passage rates were more diverse. When foreign bodies were stuck below esophagus, similar sized coins and baduk stones had spontaneous passage rates greater than 80% regardless of age. CONCLUSION: It is better for clinicians to wait for spontaneous passage to occur in cases involving coins or round-shaped foreign bodies that are located at or below the stomach.

Spontaneous passage of ureteral stone by conservative treatment / 대한비뇨기과학회지

One hundred patients who have a urethral stone lesser than 1.0cm in diameter were evaluated for spontaneous passage during 8 months between July, 1991 and February, 1992. The spontaneous, passage in accordance with duration of follow-up, the stone site, size, shape and degree of urethra obstruction was investigated. The overall rate of spontaneous passage was 56.0 % with the duration or 39.3 days ranging from 2 days to 8 months. Among these 56 patients, 48(85.7% ) obtained a spontaneous passage within 8 weeks. The rate and duration of spontaneous passage according to stone site were 57.7%, 67.4 days in upper ureter, 25.0%, 64.0 days in mid ureter and 57.1%. 21.9 days in lower ureter, respectively. Spontaneous passage rate was insignificantly correlated with the increment of stone size, but the duration requiring for spontaneous passage of lower ureteral stone was shorter than those of upper or mid ureteral stones. For stone shape the smooth surface or cylindrical shaped stone was more easily passed out spontaneously than the irregular or round shaped one. And, the severer ureteral obstruction, the poorer spontaneous passage was observed. Therefore, the ureteral stone which is smaller than 1.0cm in diameter could be expected a spontaneous passage for 8 weeks at least unless there are specific symptoms or impairment of renal function, especially when the stone has smooth-cylindrical shape and the ureter shows minimal obstruction.

Spontaneous passage of ureteral stone by conservative treatment / 대한비뇨기과학회지

A statistical analysis of 92 patients with ureteral stones, who had been treated by conservative treatment was undertaken to elucidate the correlation between size of calculi and the probability of spontaneous passage. The overall rate of spontaneous passage was 69.5%. Average stone size and treatment duration were 4.0, 5.0, 4.2mm and 9.4, 10, 6.3days in order of upper. mid, lower ureter. The rate of spontaneous passage according to stone size was 80% in less than 5mm. 15% in 5-6mm and 5% in 6-7mm. Therefore, when stones are smaller than 5mm in diameter, higher chances of spontaneous passage would be anticipated in 6-7days.