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Biomedical subjects

J A Reijnen

Publications and source records attributed to J A Reijnen.

9 recordsLinked to original sources
PubMed2006

[Abdominal pain caused by herniation of the small intestine through the ligamentum latum uteri].

A 47-year-old woman had experienced paroxysmal pain in the lower abdomen, nausea and vomiting for the last 12 hours. Laparoscopy revealed a 60-cm hernia of ileum through the ligamentum latum, which had led to ileal necrosis. After resection of a portion of the small intestine, the patient recovered. Defects in the ligamentum latum can arise from congenital or acquired causes. The most common congenital cause is the rupture of a cystic structure in the ligamentum latum. Acquired causes include surgical intervention, pelvic inflammatory disease and traumatic injury sustained during gravidity or parturition. These causes all lead to local weakening of or direct damage to the ligamentum latum.

Abdominal Pain↗
PubMed1999

[Gait analysis of 57 healthy children by measurement of ground reaction forces on an Adal treadmill].

PURPOSE OF THE STUDY: The purpose of this study was to present a new treadmill proposed for evaluating gait in children. We analysed differences in ground reaction forces between boys and girls, and we calculated the symmetry index in healthy children. MATERIAL AND METHOD: Time and ground reaction forces of about 30 steps were measured using a new treadmill. The apparatus consists of 2 walking belts which function as two independent treadmills placed side by side, separated by 4 mm. The 2 treadmills were mechanically separated in order to allow independent measurement of the ground reaction forces induced by each lower limb during stance phase. The children (28 boys and 29 girls), all clinically healthy, were divided into three groups according to their height (between 105 and 150 cm). They walked at three different velocities (2.7 km/h, 3.6 km/h and 4.5 km/h according to their height). The graphs representing the subject's measurements were composed of fore-aft, medial-lateral, and vertical parameters. The analysis of these graphs considered stride, stance, double stance and nine specific points. We also calculated the symmetry index of each child. RESULTS: We determined the values of the symmetry index in healthy children. We did not find any significant difference in gait between girls and boys, except for Fz3 at 2.7 kg/h, where Fz3 was higher in girls than in boys. DISCUSSION: We compared our results with those reported in the literature and found that ADAL has a very important advantage in gait analysis in children because it is simple and easily accepted by children.

Age Factors↗
PubMed1990

Intussusception complicated by bowel perforation during hydrostatic reduction.

Most perforations of the bowel during attempt at hydrostatic reduction of intussusception occur in an area of localised infarction in the normal transverse or left colon. An animal model of intussusception was used to find indications for the cause of this phenomenon. We submitted the intussuscipiens of 10 strangulated intussusceptions in 6 dogs to a histological examination. In 6 of 10 intussusceptions we found ischaemic changes in the mucosa of the intussuscipiens. In 3 cases these lesions were multiple. All lesions were found in locations where there was a close contact between the intussusceptum and the intussuscipiens. We did not find signs of impaired circulation of the whole intussuscipiens. We conclude that our findings give an indication that perforation of the intussuscipiens during attempt at hydrostatic reduction occurs through areas of localised ischaemic infarction on the basis of direct pressure by the intussusceptum.

Animals↗
PubMed1990

Intussusception: factors related to treatment.

To provide guidelines for the choice of treatment of intussusception, 10 factors that are known to be related to the outcome of treatment were studied in a series of 146 children with intussusception. The length of history, vomiting, rectal bleeding, small bowel obstruction, ileoileocolic intussusception, and the presence of a leading point were all significantly related to failure of hydrostatic reduction. Only 'rectal bleeding' and 'duration of symptoms of more than 48 hours' contributed significantly to the prediction of failure of hydrostatic reduction by logistic regression analysis. We believe that as well as the generally accepted contraindications--signs of peritonitis or bowel perforation--the presence of rectal bleeding when symptoms have lasted more than 48 hours is a contraindication to hydrostatic reduction.

Adolescent↗
PubMed1989

Chronic intussusception in children.

Nine children presented with intussusception lasting for 14 days or more. Their mean age was 8.5 years. Diagnosis of intussusception was delayed considerably, probably due to an unusual presentation. Compared with acute intussusception, symptoms consist of infrequent attacks of abdominal pain, sporadic vomiting and no, or small, changes in defecation. Marked weight loss and an abdominal mass assume diagnostic significance, in contradiction to bloody stools. Ultrasonography can be of diagnostic value. An attempt at hydrostatic reduction is often unsuccessful. A high frequency of organic lesions precipitating intussusception warrants early surgical intervention.

Adolescent↗
PubMed1989

Conservative treatment of ingrowing toenails.

A combination of conservative measures was used to treat 105 patients with 119 ingrowing toenails. The method proved to be simple and cheap, but time consuming. Post-treatment discomfort and the time taken to return to normal activities were acceptable; the cosmetic result was good. Two-year follow-up revealed that the success rate of the method in less advanced cases (stages I and II) was high (96 per cent), although in the long term there was a tendency to recurrence in stage II cases. The failure rate in advanced cases (stage III) was high (up to 62 per cent). Conservative treatment can be used successfully in mild cases of ingrowing toenails.

Adolescent↗
PubMed1987

Intussusception in children 5-15 years of age.

Twenty cases of intussusception in children between the ages of 5 and 15 years were compared with intussusception in infancy and early childhood. They accounted for 18.5 per cent of all 108 children treated for intussusception in two large hospitals from 1964 to 1984. Diagnosis of intussusception was delayed, probably due to an unusual presentation. Fifty-five per cent had a definite predisposing factor precipitating the intussusception and 45 per cent had a small bowel intussusception, which warranted early surgical intervention. In the absence of contraindications no child should be disqualified from an attempt at hydrostatic reduction. After hydrostatic reduction careful follow-up is required to exclude an organic lesion, possibly by a small bowel follow-through meal. Surgery is indicated after hydrostatic reduction in case of chronically recurrent abdominal complaints.

Adolescent↗
PubMedDate not supplied

Atypical characteristics of a group of children with intussusception.

We describe the characteristics of a group of 140 children with intussusception. They differed strikingly from the classical picture of intussusception given in textbooks and in publications concerning large series. We found a low incidence of intussusception especially in infants and young children. There were far more children of older ages, the delay in diagnosis was significantly longer and there was a very high percentage of leading points. These factors explained our low hydrostatic reduction rate. The weight of most children was under the fiftieth percentile. The percentage of small bowel intussusceptions was somewhat higher. These differences are important in the light of early diagnosis and evaluating the results of treatment.

Adolescent↗