|Year : 2018 | Volume
| Issue : 2 | Page : 111-113
|A 6-year retrospective review of histopathological pattern of surgical biopsies in children with refractory constipation in a Tertiary Hospital in Ghana
Abiboye C Yifieyeh1, Babatunde M Duduyemi2, Anthony Enimil3
1 Directorate of Surgery, Komfo Anokye Teaching Hospital, Kumasi, Ghana
2 Departments of Pathology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
3 Departments of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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|Date of Web Publication||27-Jun-2019|
| Abstract|| |
Background: Children with chronic constipation dating to infancy frequently undergo rectal biopsy in order to rule out Hirschsprung's disease (HD) which is a common cause of this sort of presentation. Few publications have however focused on the documentation of the proportion of such patients who truly had histopathological findings confirming the disease. In this preliminary work, we aim to present the histopathological findings of children who had rectal biopsies in our centre from 2009 to 2014. Patients and Methods: A retrospective study was undertaken to review the histopathology reports of all rectal biopsies submitted to the Department of Pathology of the Komfo Anokye Teaching Hospital, Kumasi, from 2009 to 2014 on account of refractory constipation and suspected HD. Patient's biodata, clinical signs and symptoms were extracted from the request form. Results: Eighty-eight cases were seen during the study period with male to female ratio 2.8:1 and age range 6 months to 10 years. The modal age range is 24–36 months. Seventy-six of the specimens were adequate for histopathological assessment with 64 cases confirmed as HD while 12 cases were normal. Out of the confirmed cases, 3 cases showed absence of ganglion cells but no hypertrophy of nerve fibres. Conclusion: This preliminary work reveals that HD is rarely confirmed by biopsy in early infancy in our setting due to late presentation although the epidemiology of the disease is similar to that reported elsewhere.
Keywords: Chronic constipation, Hirschsprung's disease, rectal biopsy
|How to cite this article:|
Yifieyeh AC, Duduyemi BM, Enimil A. A 6-year retrospective review of histopathological pattern of surgical biopsies in children with refractory constipation in a Tertiary Hospital in Ghana. Afr J Paediatr Surg 2018;15:111-3
|How to cite this URL:|
Yifieyeh AC, Duduyemi BM, Enimil A. A 6-year retrospective review of histopathological pattern of surgical biopsies in children with refractory constipation in a Tertiary Hospital in Ghana. Afr J Paediatr Surg [serial online] 2018 [cited 2019 Jul 23];15:111-3. Available from: http://www.afrjpaedsurg.org/text.asp?2018/15/2/111/261629
| Introduction|| |
Children with chronic constipation dating to infancy frequently undergo rectal biopsy in order to rule out Hirschsprung's disease (HD). HD is a congenital absence of the ganglion cells (GCs) in the distal gastrointestinal tract causing a functional intestinal obstruction.,, Clinical presentation is usually short after birth with either a failure or a delay in the passage of meconium., Presentation in late infancy, childhood and adolescence are known., Histopathological study of rectal biopsy specimens is the means of making a definite diagnosis. The curative surgical procedures, which are collectively called pull-throughs, entail the resection of the aganglionic segment and coloanal anastomosis. Few publications have however focused on the histopathological findings from these rectal biopsies with the aim of documenting the proportion of such patients who truly have HD. In this preliminary work, we aim to present the histopathological findings of children who either had rectal biopsy or corrective pull-through procedure in our centre from 2009 to 2014.
| Patients and Methods|| |
A retrospective study was undertaken to review the histopathology reports of all biopsies submitted to the Department of Pathology of the Komfo Anokye Teaching Hospital, Kumasi, from 2009 to 2014 on account of refractory constipation and suspected HD. Full-thickness rectal biopsy is the routine method of rectal biopsy in our hospital.
The reports of all pull-through surgical specimens from children with pathologically confirmed HD were also reviewed. Patient's biodata, clinical signs and symptoms were extracted from the request form. Minimum criteria for histopathological confirmation of HD included the absence of GC and the presence of hypertrophic nerve fibres (HNFs).
| Results|| |
Eighty-eight cases were seen during the study period with male to female ratio 2.8:1 and age range 6 months to 10 years. The modal age range was 24–36 months. Seventy-six specimens were adequate for histopathological assessment with 64 cases confirmed as HD while 12 cases were normal. Out of the confirmed cases, 3 cases showed the absence of GC but no HNF. [Figure 1], [Figure 2], [Figure 3] show the age distribution and histologic diagnosis, sex distribution and histologic diagnosis and yearly frequency of HD, respectively.
Of the pull-through surgical specimens (30), the length of the aganglionic segment was limited to the rectum and sigmoid in 15 (50%) cases. The rare involvement of the small intestine was found in 3 cases, 2 of whom were females. [Figure 4] depicts the absolute numbers of rectal biopsies and the extent of aganglionic involvement from the pull-through specimens.
| Discussion|| |
Male preponderance in HD, as we found in our study, is well reported.,,, In most series, confirmatory diagnosis of HD is obtained either during the neonatal period or early infancy through rectal biopsy., Neonatal suction rectal biopsy (SRB), which is a bedside procedure, is the usual means of obtaining the specimens in these studies. It is comparatively non-invasive and does not require general anaesthesia. These factors have made SRB very appealing. Inadequate sampling and a comparatively more challenging interpretation of histopathological findings especially in premature newborns are some of its drawbacks. Most of our cases were not diagnosed during early infancy as has been documented in other developing countries.,,, In our setting, most children are brought to the hospital only when the enema, which their mothers or grandmothers routinely administer to them, has failed to relieve their constipation. Paucity of trained clinical and laboratory personnel at peripheral hospitals could contribute to this diagnostic delay.
It is thought that patients with very short segments of aganglionosis would have delay in diagnosis because of less severe symptoms. There was no relationship between the length of the aganglionic segment and the age at diagnosis among our patients. There were 3 cases of small bowel aganglionoisis. Two of these were girls. Small intestinal HD is more common in females.,,
In only 12 instances (15.8%) were the rectal biopsies normal. This proportion is in contrast to findings in more developed countries. As many as 89% of neonatal rectal biopsies performed on account of suspected HD were negative in a series reported by Rahman et al.
The availability of neonatal SRB devices in those parts of the world has made the mandatory ruling out of HD in newborns that have difficulties passing meconium, a relatively easy process. This may account for the disparity identified.
The histopathological finding of HNF is contributory to the diagnosis of HD. Its absence does not rule out the presence of the disease, especially in total colonic involvement. Non-hypertrophied nerve fibres have however been better appreciated in the presence of immature GCs., The nerve fibres were not hypertrophied in 3 of our cases.
| Conclusion|| |
This preliminary work reveals that HD is rarely confirmed by biopsy in early infancy in our setting. Public health education about the need for early presentation, improving access to specialised health care for infants and the availability of SRB are some of our suggested solutions.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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Dr. Babatunde M Duduyemi
Department of Pathology, Kwame Nkrumah University of Science and Technology, Kumasi
Source of Support: None, Conflict of Interest: None
[Figure 1], [Figure 2], [Figure 3], [Figure 4]
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