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1.
OBJECTIVE: During postpyloric tube feeding, GI intolerance is observed more frequently than during prepyloric feeding, possibly by evoking a stronger GI response. METHODS: We investigated the effect of intragastric and intraduodenal administration of a polymeric diet (125 kcal/h) on gallbladder motility (by ultrasonography), duodeno-cecal transit time (by lactulose H2 breath test), and GI hormone release (including cholecystokinin, pancreatic polypeptide, and gastrin). Six healthy subjects (two male, four female; mean age 22 yr, range 18-27 yr) were studied on two separate occasions in random order during 6 h of continuous administration of the diet through either the gastric or duodenal port of a two-lumen tube. RESULTS: Intraduodenal feeding resulted in a more rapid contraction of the gallbladder, from 32 +/- 4 to 23 +/- 4 cm3 at 10 min (p < 0.05), reaching a minimum of 6 +/- 1 cm3, in contrast to intragastric feeding (31 +/- 4 to 19 +/- 3 cm3 at 60 min, p < 0.05; minimum 14 +/- 1 cm3). The gallbladder remained contracted during the 6-h study period during both intraduodenal and intragastric feeding. Small-bowel transit time was significantly accelerated during intraduodenal compared with intragastric feeding (51 +/- 12 vs 81 +/- 9 min; p = 0.003). Plasma cholecystokinin secretion was significantly (p < 0.05) increased during intraduodenal compared with intragastric feeding (848 +/- 107 vs 279 +/- 89 pmol x L(-1) x 360 min). The same was true for pancreatic polypeptide secretion. However, gastrin release was significantly (p < 0.05) higher during intragastric feeding. CONCLUSIONS: Intraduodenal feeding elicited a stronger GI response than intragastric feeding, as demonstrated by accelerated small-bowel transit time, more rapid and stronger gallbladder contractions, and increased cholecystokinin and pancreatic polypeptide release. Gastrin release, on the other hand, was stronger during intragastric feeding.  相似文献   

2.
Diarrhoea is a major cause of short-term growth faltering in children of the developing world. If catch-up weight gain is delayed by inadequate dietary intake, or by further bouts of diarrhoea, progressive growth failure occurs. To test the hypothesis that early refeeding is as effective as later feeding after acute diarrhoea with weight loss, we measured the effects of a timed dietary intervention on weight gain after acute diarrhoea in underweight Gambian children. Thirty-four children aged 4-22 months with weight loss following acute diarrhoea were given a high-energy-protein supplement for 14 d beginning either immediately after rehydration or a fortnight later. With a 50% increase in energy intake and a 100% increase in protein intake there was a rapid and highly significant (P < 0.001) gain in weight within a fortnight whether the supplement was given immediately or 2 weeks after presentation. Rates of weight increase were similar whether supplementation was provided early or late, but over the full 28 d (of intervention and non-intervention) children who received late supplementation had greater overall weight gain (P < 0.02) than those supplemented early. Vigorous and early feeding with a high-energy-protein supplement should be central to the management of malnourished children with acute diarrhoea in developing countries, and may be as important as control of diarrhoea in preventing malnutrition and growth failure. This may be achieved in the community using locally available foods, in the face of continuing diarrhoea.  相似文献   

3.
OBJECTIVE: To study the effect of sufficient energy intake, by means of the protocolized administration of naso-gastric tube feeding, on the nutritional status of a child with cancer. DESIGN: A comparative experimental study. SETTING: Tertiary care at the Centre for Pediatric Oncology, South East Netherlands, University Hospital, Nijmegen. SUBJECTS: Seven children, newly diagnosed with cancer, were included in the experimental study and all completed the trial period. Fourteen patients were included in the retrospective study. They were randomly chosen from a group of patients previously treated for a malignancy at our department and who had received naso-gastric tube feeding for at least 16 weeks. INTERVENTION: Protocolized (experimental group) vs non-protocolized (retrospective group) administration of naso-gastric tube feeding over a period of 16 weeks. The main difference was the amount of tube feeding administered. In addition to energy from other foods, children in the experimental group received 106+/-13% of their total daily energy requirements (TDER) by means of tube feeding, whereas children in the retrospective group had received 75+/-24%. MAIN OUTCOME MEASURES: Weight as a percentage of weight for height according to the 50th percentile of a healthy reference population=ideal weight. RESULTS: Weight, expressed as a percentage of the ideal weight, increased significantly in the experimental group (18.2 8.4; P=0.01) and the retrospective study group (5.2 7.3; P=0.001). However, the increase was statistically significant in favour of the experimental group (P=0.003), in which all the children reached their ideal weight, compared to 21% in the retrospective group. CONCLUSION: Aggressive protocolized nutritional intervention during the intensive phase of anti-cancer treatment, in the form of naso-gastric tube feeding that provides the child's total daily energy requirements, results in considerable improvement in the nutritional status.  相似文献   

4.
Reports on 2 experiments with 114 adult male Sprague-Dawley rats. Ss were made obese either by tube feeding varying fractions (34, 47, 68, or 75%) of their normal food intake or by offering them a varied and palatable diet (cafeteria diet). After 17–30 days of these regimens, the treatments were withdrawn, and Ss were allowed free access to the normal stock diet. Tube-fed Ss precisely adjusted voluntary food intake to compensate for the energy delivered by tube but nevertheless became obese as a result of an increased metabolic efficiency. Cafeteria-fed Ss were hyperphagic and became obese without any apparent change in metabolic efficiency. Recovery from obesity was more rapid in cafeteria Ss and was due to a pronounced increase in heat production as well as concomitant hypophagia. Ss previously made obese by tube feeding exhibited hypophagia and returned to normal weight without any change in heat production. The relevance of these results to the concept of lipostasis and the relative roles of energy intake and expenditure in the regulation of energy balance are discussed. (17 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

5.
OBJECTIVES: This study evaluated the application of ultrasound (US) guidance in the percutaneous placement of gastric feeding tubes in patients in whom endoscopic placement of a nutrition tube is not possible. METHODS: Thirty-eight patients with upper gastrointestinal obstruction were entered in a prospective study with US-guided nutrition tube application. Feasibility of placement, side effects, and nutritional states were monitored for a mean follow-up of 4 months. RESULTS: Ultrasound allowed rapid puncture after filling of the stomach with water through a nasal tube in 34/38 cases. In four cases a total upper gastrointestinal obstruction required an initial stomach insufflation through a direct puncture. Puncture-related major complications were not observed. Minor complications during the observation time were one late dislocation, five cases with broken material after about 6 months (four could be changed by using the Seldinger technique), and two minor local infections. The nutrition through feeding tubes stabilized body weight and body composition parameters. CONCLUSION: The percutaneous sonographic gastrostomy (PSG) is a safe and minimally invasive procedure for enteral nutrition in all cases with upper gastrointestinal obstruction when endoscopic placement of a feeding tube is not possible. Percutaneous sonographic gastrostomy may help to stabilize the nutritional parameters and general condition in patients with malignant diseases.  相似文献   

6.
OBJECTIVE: To identify nutritional risk factors for growth failure in infants with bronchopulmonary dysplasia (BPD) after initial hospital discharge, and to describe growth in and feeding concerns about these infants after discharge to the community. DESIGN: A cohort of 40 infants with BPD was followed up for 7 monthly visits after initial hospital discharge. Data on potential risk factors were gathered prospectively. SUBJECTS/SETTING: Forty infants with BPD were recruited from all 4 tertiary-level neonatal intensive care units in the Puget Sound area of Washington. Exclusionary criteria included congenital or chromosomal anomalies, grade IV intraventricular hemorrhage, and drug or alcohol exposure in utero. MAIN OUTCOME MEASURES: Growth failure defined as weight less than the 5th percentile on National Center for Health Statistics growth curves at 2 or more points in time and a decrease in weight-for-age z score during the study period. STATISTICAL ANALYSES PERFORMED: Relative risk of growth failure with exposure to each risk factor was determined. The chi 2 test was used to measure association between growth and development, and change in z scores was used to examine growth patterns. RESULTS: Growth failure occurred in 8 of 40 infants. Twenty-nine of the infants experienced a drop in weight-for-age z score from the initial to the final study visit. Growth failure was associated with low socioeconomic status (relative risk = 4.0, 95% confidence interval = 1.3, 12.6), postdischarge days of illness (relative risk = 10.5, 95% confidence interval = 1.4, 77.4) and "suspect" development (chi 2 = 7.12, P = .014). APPLICATIONS: Infants with BPD may benefit from comprehensive postdischarge nutrition and feeding therapy that includes ensuring adequate energy intake, parental support and education, and feeding evaluation and therapy.  相似文献   

7.
RATIONALE: Nutritional support for children on chronic dialysis often involves the use of nasogastric tubes or gastrostomy feeding. We report our experience using gastrostomy buttons (GB) over a 6.6-year period to document their success/failure, the feeding regimens employed and the impact on growth. DESIGN: In 339 patient months of prospective observation, 22 children (14 male) commenced gastrostomy feeding at a median age of 2.3 years (range 0.2-10.3 years). Sixteen patients had an initial gastrostomy catheter inserted at the same time as a chronic dialysis catheter. Eighteen patients were established on continuous cycling peritoneal dialysis (CCPD) and four on haemodialysis (HD). RESULTS: The mean duration of combined gastrostomy feeding and chronic dialysis was 14.5 months (range 2.4 56 months). In 20 of the children followed for 6 months on combined GB feeding and dialysis, the mean protein and energy intakes were 2.5 g/kg bodyweight/day (range 1.7-3.4 g) and 108 kcal/kg bodyweight/day (range 72-129 kcal). The mean energy intake achieved was 116% (range 98-155%) of the estimated average requirement (EAR) for energy. The mean percentage of total energy and protein intakes delivered via the GB during the study period was 61% (33-95%) and 61% (23-98%) respectively. Mean height standard deviation score (SDS) was -2.22 prior to GB feeding and -2.06 at the end of the study period (P = 0.005) and mean weight SDS was -2.22 and -1.16 (P = 0.001) respectively. The mean life of the GB was 7.7 months (range 2.6 14 months) with most button changes due to leakage problems. Two episodes of peritonitis were attributable to the GB with one requiring peritoneal dialysis catheter removal due to candida infection. The GB was removed at a mean of 2.8 months (range 0.8-8.3 months) after renal transplantation in 13 children. CONCLUSION: The gastrostomy button provides a valuable and aesthetically appealing route for nutritional support with few complications.  相似文献   

8.
Studies on rats maintained on low-protein-calorie diets during the lactation period show that food intake decreases. This process results in weight loss and a delay in litter development. The purpose of the present study was to determine the alterations in food intake, maternal weight and litter growth during lactation when dams were exposed to diets with different levels of protein and carbohydrate. Female Wistar rats receiving one of 4 different diets, A (N = 14), B (N = 14), C (N = 9) and D (N = 9), were used. Diet A contained 16% protein and 66% carbohydrate; diet B, 6% protein and 77% carbohydrate; diet C, 6% protein and 66% carbohydrate; diet D, 16% protein and 56% carbohydrate. Thus, C and D diets were hypocaloric, while A and B were isocaloric. The intake of a low-protein diet in groups B and C affected the weight of dams and litters during the last two weeks of lactation, while the low-calorie diets limited the growth of D litters at 21 days compared with A litters, but had no effect on the weight of D dams. Group B showed an increase in intake during the first five days of lactation, resulting in a behavioral calorie compensation due to the increase in carbohydrate content, but the intake decreased during the last part of lactation. Food intake regulation predominantly involves the recruitment of a variety of peripheral satiety systems that attempt to decrease the central feeding command system.  相似文献   

9.
Polydactyly in a carrier of the gene for the Meckel syndrome   总被引:1,自引:0,他引:1  
Localized scleroderma is distinct from the diffuse form of scleroderma and does not show Raynaud's phenomenon and visceral involvement. The imaging features in 23 patients ranging from 2 to 17 years of age (mean 11.1 years) were reviewed. Leg length discrepancy and muscle atrophy were the most common findings (five patients), with two patients also showing modelling deformity of the fibula. One patient with lower extremity involvement showed abnormal bone marrow signals on MR. Disabling joint contracture requiring orthopedic intervention was noted in one patient. In two patients with "en coup de sabre" facial deformity, CT and MR scans revealed intracranial calcifications and white matter abnormality in the ipsilateral frontal lobes, with one also showing migrational abnormality. In a third patient, CT revealed white matter abnormality in the ipsilateral parietal lobe. In one patient with progressive facial hemiatrophy, CT and MR scans showed the underlying hypoplastic left maxillary antrum and cheek. Imaging studies of areas of clinical concern revealed positive findings in half our patients.  相似文献   

10.
BACKGROUND AND DESIGN: Recently, we detected antihistone antibodies (AHAs) in patients with localized scleroderma. However, the exact antigen specificity of AHAs in this disease is still unknown. Therefore, we determined the reactivity of AHAs with five individual histones and the correlation of AHAs with rheumatoid factor in localized scleroderma by means of enzyme-linked immunosorbent assay. Twenty patients with localized scleroderma who had IgG and/or IgM AHAs, as determined by enzyme-linked immunosorbent assay, were examined. These patients were classified into the following three subgroups: patients with generalized morphea (n = 11), patients with linear scleroderma (n = 6), and patients with morphea (n = 3). RESULTS: In generalized morphea, IgG AHAs strongly reacted with histones H1, H2A, and H2B; and IgM AHAs strongly reacted with H1 and H2B, as determined by means of enzyme-linked immunosorbent assay. The pattern of reactivity in linear scleroderma and morphea was similar to that in generalized morphea. A homogeneous immunofluorescent pattern on HEp-2 cells, which was produced by localized scleroderma sera, was completely abolished by absorption with total histones. By employing a latex agglutination test, IgM rheumatoid factor was detected in 60% of the 20 patients with localized scleroderma and at a frequency of 82% in those with generalized morphea. However, an absorption test of rheumatoid factor activity with human IgG revealed no cross-reactivity of AHAs with rheumatoid factor. CONCLUSIONS: Our data suggest that AHAs in localized scleroderma are directed against native chromatin, since H1, H2A, and H2B occupy a relatively exposed portion of chromatin.  相似文献   

11.
A severe form of hyperemesis gravidarum involving maternal weight loss greater than 5% of the prepregnant weight occurs in up to 0.1-0.2% of all pregnancies and may lead to retarded foetal growth. Treatment consists of hospitalisation, antiemetics and correction of fluid and electrolyte deficiencies. If severe vomiting and weight loss continues, the mother must receive supplementary nutrition, usually parenteral. Nasoenteral tube feeding is a well documented method of nutrition for other patients. A gastroscopically placed nasojejunal tube as part of the treatment of hyperemesis gravidarum has not been reviewed before. Seven women with severe hyperemesis gravidarum were treated with nasojejunal tube feeding. The tube was positioned gastroscopically. Enteral feeding continued for up to 41 days, leading to reasonable weight gain. The tube was tolerated well by most patients and no serious adverse effects were seen. Nasoenteral nutrition ought to be considered as an alternative to parenteral nutrition for treatment of hyperemesis gravidarum.  相似文献   

12.
BACKGROUND: Short stature is one of the features of Turner syndrome and a form of presentation of monosymptomatic celiac disease. METHODS: The recognition of celiac disease in two antiendomysium antibody-positive Turner syndrome girls who did not respond to growth hormone treatment led us to perform as a screening for celiac disease IgA and IgG antigliadin antibodies and antiendomysium antibodies determination in other 35 Turner syndrome patients. Intestinal biopsy was proposed to the antiendomysium antibodies-positive girls; in the former, subtotal villous atrophy was found; in the latter, one parent's consent for intestinal biopsy was not obtained. RESULTS: The prevalence of celiac disease in Turner syndrome patients observed in the present study (8.1 if we consider 3 villous atrophy, 10.8 if we consider 4 antiendomysium antibody-positive) is quite high and seems to indicate that the association of these two disorders could not be coincidental. As to the clinical picture, celiac disease appeared atypical in one case, typical in another one and as a silent form in the third case. Of the 3 cases with villous atrophy on gluten-free diet growth hormone therapy was not effective in two girls, who were older than 16 years, while in the younger patient, detected by the screening, a significant increment of height velocity and height Standard Deviation Score for Chronological Age according to Turner references was observed. CONCLUSIONS: This study suggests that celiac disease can be associated with Turner syndrome and even responsible for a failure of growth hormone therapy. Therefore we propose to perform in Turner syndrome patients antiendomysium antibody determination as a screening followed by intestinal biopsy in positive cases. This would be advisable at least before starting growth hormone treatment.  相似文献   

13.
We report a series of seven patients who had scleroderma renal crisis. Their primary clinical and laboratory features along with the details of their management were compared with those of similar cases from the literature. The seven patients died within one to four months of the diagnosis with a pattern of acute renal failure, left ventricular failure and malignant hypertension. Histopathologic examination was performed in four of the patients, in two of whom it revealed thickening of the wall of the interlobular arteries related to the scleroderma, and in the other two patients nonspecific lesions of malignant hypertension. This histopathologic particularity led us to propose, on the basis of multiple renal biopsies performed in patients with scleroderma, a lesion chronology of the kidney in patients with scleroderma. Nevertheless, the triggering factors and pathophysiologic mechanisms of scleroderma renal crisis remain unclear and its prognosis is severe. Early treatment with angiotensin-converting enzyme inhibitors and other vasodilatators administered intravenously can prevent death and dialysis.  相似文献   

14.
After the skin, the gastrointestinal tract is the most frequently affected organ in systemic sclerosis. Gastrointestinal symptoms already may be present early in the course of the disease and do not necessarily correlate with objective findings. Esophageal dysmotility is not specific for systemic sclerosis but occurs in other connective tissue diseases as well. Peripheral macrovascular disease was shown to be increased in patients with limited cutaneous sclerosis; signs of autonomic dysfunction were found in patients with the CREST (calcinosis, Raynaud's phenomenon, esophageal dysfunction, sclerodactyly, and telangiectasia) variant. Pulmonary involvement was shown to be moderately or severely decreased in 40% of a large cohort of scleroderma patients. In one study, no support was found for the association between pulmonary involvement and gastroesophageal reflux. Peripheral nerve involvement is often subclinical and might be associated with anti-U1-RNP and anti-topoisomerase I antibodies. Internal organs are seldomly affected in localized scleroderma. When occurring in childhood and involving an extremity, localized scleroderma can cause growth failure, resulting in long-term functional disability.  相似文献   

15.
In affluent populations, breast-fed infants generally exhibit a different pattern of growth than formula-fed infants. The average weight gain of the former is lower than that of the latter, even after complementary foods are introduced. In some studies, the length gain is also lower among breast-fed infants, whereas in others there is no significant difference in linear growth between feeding groups. Growth in head circumference does not differ by feeding mode. Because of the difference in weight gain, breast-fed infants are generally leaner than formula-fed infants by 12 months of age. Breast-fed infants appear to self-regulate their energy intake at a lower level than consumed by formula-fed infants and have a lower metabolic rate. Evidence to date suggests that there are no apparent adverse consequences associated with the lower intake and slower weight gain of breast-fed infants: compared to formula-fed infants, they do not differ in activity level, and they experience less illness and appear to have enhanced cognitive development. The reasons for differences in growth patterns by feeding mode require further research.  相似文献   

16.
BACKGROUND: Data from a longitudinal study of 153 low-income Peruvian infants were used to assess the relationship between internationally-recommended definitions of feeding practices and infants' monthly weight gain and weight status at 12 months. METHODS: Infants were classified into feeding categories using monthly reported data. Analysis of variance was used to assess the relationship between reported usual feeding practices and growth. Reported breastfeeding practices were compared to observed breastfeeding practices and to weighted breast milk intakes to determine the validity of recommended breastfeeding definitions. RESULTS: Breastfed infants who consumed non-human milks during the first month of life gained less weight during that month (P < 0.002) than exclusively and predominantly breastfed infants. Reported daily nursing frequency was associated with observed nursing frequency and breast milk energy intake (P < 0.05) for infants < 9 months old. Patterns of growth varied according to early diets. Infants who consumed breast milk and non-human milks and those who were fully weaned by 4 months were more likely to be underweight at 12 months than other infants. Infants classified as token breastfeeders ( < or = 3 times/24 hours) from 0 to 120 days had monthly gains that were similar to those of fully weaned infants. CONCLUSIONS: Infants feeding definitions should 1) continue to differentiate exclusively breastfed infants from other infants who are almost exclusively or predominantly breastfed; 2) distinguish partially breastfed infants who consume only non-breastfeeding frequency or the % of their total daily energy that comes from breast milk.  相似文献   

17.
6 obese, finicky female hooded rats with lesions of the hypothalamic ventromedial nucleus (VMH) and 7 sham-lesioned controls progressively lost weight on an unpalatable diet until at a critical basal level they increased their intake to prevent further loss of weight. The critical basal body weight was similar in both groups and showed no change in the controls when they were subsequently lesioned and retested. At weight levels below the critical basal level the feeding behavior of lesioned and unlesioned Ss was similar, and finickiness could be demonstrated only when body weight exceeded it. The basal level bore no relation to the plateau level of body weight reached by Ss on a free diet. Suggestions that the VMH excites as well as inhibits feeding seem untenable in view of the failure of VMH lesions to impair defense of body weight in the nonobese rat. (17 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

18.
OBJECTIVE: To report a case of nonsteroidal antiinflammatory drug (NSAID)-induced lower gastrointestinal (GI) bleeding. CASE SUMMARY: A patient in whom short-term ingestion of indomethacin was associated with colonic ulceration and significant gastrointestinal bleeding is described. DISCUSSION: The bleeding ulceration of the ascending colon, associated in our patient with short-term indomethacin intake, confirms previous reports of the drug's deleterious effect on the lower GI tract. The incidence of NSAID injury of the small intestinal colon may be higher than that previously reported. CONCLUSIONS: A prospective study of NSAID users could assess the magnitude of lower GI lesions, concomitant with upper GI evaluation, and help determine limitations in the use of this drug class.  相似文献   

19.
Plasma glucagon and insulin were determined in rats fed three diets, one control and two low protein (LP 1 & LP 2). In LP 1, the protein omitted was replaced by carbohydrate while in LP 2, fat and alpha-cellulose replaced the omitted protein. Among rats fed LP diets ad libitum, food consumption decreased and body weight loss occurred. In order to separate the effects of reduced food intake and weight loss from the effects of LP diet alone, paired feeding and paired weight experiments were conducted. In another experiment, ingestion of a LP diet for 8 to 10 days was followed by refeeding the control diet for 5 days. The results demonstrate that plasma insulin was reduced in LP rats compared to the full-fed controls and pair-fed controls, the lowest levels being observed in rats fed LP 2 diet. Furthermore, the paired feeding experiment revealed that the diminished food consumption plays no significant role in lowering plasma insulin in LP rats. The refeeding experiment showed that the decline in plasma insulin in LP rats is a transient phenomenon and the plasma insulin promptly reverts to normal upon resumption of feeding the control diet. Plasma glucagon was unaltered throughout these dietary manipulations.  相似文献   

20.
Oral food intake in patients with obstructing pharyngeal and esophageal carcinomas is commonly insufficient because of tumor-induced dysphagia which gives rise to cachexia unless treated. While entailing an unfavorable prognosis, malnutrition is often a therapy-limiting factor. Tube feeding with liquid formula diets currently offers the most efficient and least-risky approach to long-term use and is best adopted even at a pretreatment stage irrespective of the tumor therapy intended. A feeding tube placed by a percutaneous endoscopically controlled gastrostomy (PEG) increasingly offers an alternative to a nasogastric tube. After using diaphanoscopy, the stomach is punctured from outside under local anesthesia and a feeding tube inserted by means of a retrograde thread or a direct puncture method. A modification of the direct puncture method has been preferred at the Magdeburg University E.N.T. Department. The tube is held in place by thermally activated helical winding of a gastric tube end (using a memory-retaining helix). During the 1991-1996 period 415 patients with obstructing carcinomas of the upper digestive tract were treated with a feeding tube. No fatal complications were observed. Severe complications (peritonitis) occurred in three patients. In 160 patients with PEG the following parameters were recorded: weight-to-size index, body mass index, degree of dysphagia, nutrition status, lymphocyte count, total serum protein and patients' compliance to PEG. The enteral nutrition therapy used was indicated in all of the patients treated with advanced carcinomas of the head and neck. In 81% of the patients the compliance to PEG was positive. Findings demonstrated that long-term intestinal nutrition via PEG was a safe and effective form of treatment. Inserting the tube by the direct puncture method was advantageous for patients with carcinomas in the upper digestive tract as only few mechanical alterations take place along tumorous tissues following PEG while contamination with bacteria and neoplastic cells from the tumor region into the abdomen are precluded.  相似文献   

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