Melanie Kapapa

Dr. Melanie Kapapa

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in Pediatrics & Neonatology
Verified
Journal Article
Open access
MKMelanie Kapapa
Melanie Kapapa
NBNastassja Becker
Nastassja Becker
ASAlexandre Serra
Alexandre Serra
Incidences of anorectal malformations (ARM) occur in 1 of 2000-5000 live births and up to 64% have associated malformations (ARMa). The aim of the study was to evaluate possible prenatal risk factors for ARM in a tertiary hospital. A case-control design was used to compare risk factors in ARM (n = 44) to a control group (CG; n = 26). We used modified prenatal questionnaires, analyzed mothers' prenatal records and participants completed a structured interview. Endpoints were medical history, drug consumption, occupational risk factors, and time point of diagnosis, associated malformations and sensitivity of radiological imaging. Our results showed that ARM couples had a significantly higher age difference (p = 0.028) compared to CG. ARM mothers had more abnormalities during pregnancy (p = 0.002), more positive vaginal smears of group B streptococci (p = 0.024), urogenital infections (p = 0.005), gestosis (p = 0.03), emesis (p = 0.025) and higher numbers of chronic diseases (p = 0.018). ARM mothers took less medication during pregnancy (p = 0.013) than CG mothers including folic acid (p = 0.041); their intake of iodine tablets was significantly higher (p = 0.035) and they continued smoking for longer (p = 0.036) than CG mothers, and they had more stillbirths (p = 0.035). In using illegal drug and alcohol use, the groups did not show significant differences. ARMa was present in 68.1% (n = 30), of which 45.5% were of urogenital origin (n = 20). ARM diagnosis was made on the first day of life in 72.7% (n = 32), while diagnosis was delayed in 12 patients (27.3%). A combination of different risk factors seem to be associated with the development of ARM, which takes place at an early stage (<7th week) of pregnancy. Therefore, risk factors influencing fetal development must be critically considered. We advocate an interdisciplinary assessment in unclear clinical findings on first day of life to optimize the therapy and positively influence the outcome.

Verified
Journal Article
Open access
NGNiklas Gaebler
Niklas Gaebler
BHBenedikt Haggenmüller
Benedikt Haggenmüller
MKMelanie Kapapa
Melanie Kapapa
ASAlexandre Serra
Alexandre Serra
DTDaniel Tews
Daniel Tews
PFPamela Fischer-Posovszky
Pamela Fischer-Posovszky
The growth of adipose tissue and its vasculature are tightly associated. Angiogenic factors have been linked to obesity, yet little is known about their expression during early childhood. To identify associations of angiogenic factors with characteristics on individual and tissue level, subcutaneous white adipose tissue samples were taken from 45 children aged 0–9 years undergoing elective surgery. We measured the expression of vascular endothelial growth factor A (VEFGA), fibroblast growth factor 1 and 2 (FGF1, FGF2), angiopoietin 1 and 2 (ANGPT1, ANGPT2), TEK receptor tyrosine kinase (TEK), and von Willebrand factor (VWF). In addition, we determined the mean adipocyte size in histologic tissue sections. We found positive correlations of age with FGF1 and FGF2 and a negative correlation with ANGPT2, with pronounced differences in the first two years of life. FGF1, FGF2, and ANGPT1 correlated positively with adipocyte size. Furthermore, we identified a correlation of ANGPT1 and TEK with body mass index-standard deviation score (BMI-SDS), a measure to define childhood obesity. Except for ANGPT2, all angiogenic factors correlated positively with the endothelial marker VWF. In sum, our findings suggest that differences related to BMI-SDS begin early in childhood, and the analyzed angiogenic factors possess distinct roles in adipose tissue biology.

1 March 2020 in Congenital Anomalies
Verified
Journal Article
Closed access
PDF file
MKMelanie Kapapa
Melanie Kapapa
TRTeresa Rieg
Teresa Rieg
DHDoris Henne‐Bruns
Doris Henne‐Bruns
ASAlexandre Serra
Alexandre Serra

1 January 2022 in African Journal of Paediatric Surgery
Verified
Journal Article
Open access
PDF file
MKMelanie Kapapa
Melanie Kapapa
TRTeresa Rieg
Teresa Rieg
ASAlexandre Serra
Alexandre Serra
Background: Gastroschisis (GS) and omphalocele (OC) are congenital abdominal wall defects, the main difference between is the direct exposure of intestinal loops in amniotic fluid in children with a GS. This leads to a reduced primary closure rate and a higher number of intraoperative abnormalities and post-operative complications. Aims and Objectives: We analysed abdominal wall defect patients over an 11-year period, aiming to assess the influence of meconium-contaminated amniotic fluid. This study has different objectives to show the consequence of functional outcome of abdominal wall defects (AWD) children in reliance to colour of amniotic fluid, to assess the effect of reduced bowel exposure time to meconium contaminated amniotic fluid on edematous inflammatory thickening of the bowel loops, to show an positively influence in the number of primary AWD closures, to demonstrate a reduced incidence of post-natal complications and to verify a better outcome of OC children because of failing exposure to amniotic fluid. Methods: A retrospective, observational case–control design was used to compare GS (n = 36) and OC (n = 18) children. Physical data, colour of amniotic fluid, pre- and perinatal problems, operative complications and surgical technique, post-operative complications, duration of intensive care unit (ICU) stay, mechanical ventilation, parenteral nutrition, commencement of oral feeding and total hospital stay were collected. Data were analysed with descriptive methods, t-test and non-parametric tests such as Wilcoxon and Kruskal–Wallis were performed in addition to the analysis of variance, including post hoc testing accepting a confidence interval of 95% (P < 0.05) by using IBM SPSS software, version 23 (IBM, Illinois, USA). Results: Rate of meconium-contaminated amniotic fluid is significantly higher in GS compared to OC (P < 0.001), delivery problems such as congenital infections are also significantly higher (P < 0.001), this yields in significantly more bowel loops anomalies and problems during surgery (P < 0.036) but had no significant influence on primary abdominal wall closures rate (P = 0.523). The post-surgical outcome of OC was significantly better as compared to GS. Within the GS, those with swollen intestines had significantly longer ICU stays (P = 0.045) due to extended mechanical ventilation (P = 0.007), parenteral nutrition (P = 0.011) and delayed initiation of oral feeding (P < 0.001. Same results were found for the duration of ICU stay (P = 0.008), mechanical ventilation (P = 0.006), parenteral nutrition (P = 0.011) and delayed initiation of oral feeding (P < 0.001) in secondary closures as compared to primary abdominal wall closures in the GS group. Conclusions: Worsen functional short-term outcome of GS children was directly addicted to meconium contamination of amniotic fluid due to swollen intestines and because of this more post-surgical problem including significantly extended hospital stays were observed.

16 May 2024 in African Journal of Paediatric Surgery
Verified
Journal Article
Open access
MKMelanie Kapapa
Melanie Kapapa
TRTeresa Rieg
Teresa Rieg
ASAlexandre Serra
Alexandre Serra
Background: Evaluation of quality of life (QoL) in paediatric surgical patients has not always received enough attention in the past. Our aim was to follow up patients with abdominal wall defects for a decade and (1) to analyse children’s view on QoL and to analyse parent’s view on QoL, (2) to evaluate satisfaction and psychological problems, (3) to assess present complaints including subjective aspects such as food intake, reduced appetite, pain in scar area and general abdominal pain and (4) verifiable clinical symptoms assessed through a physical examination and ultrasound. It was hypothesised that QoL would differ from gastroschisis (GS) and omphalocele (OC) children depending on the type of abdominal wall defect. Materials and Methods: A retrospective case–control design was used to compare children with GS (n = 36) and OC (n = 18). A clinical examination, including abdominal inspection, palpation and auscultation of bowel sounds with abdominal ultrasound, was offered, combined with a structured interview and specific QoL questionnaire (KINDL ® ). The focus was on QoL, child development, present complaints and satisfaction with the cosmetic outcome. Results: During clinical examinations with ultrasound, GS children were significantly more likely to have bowel loops stuck at the scar area (P = 0.008) with bowel malrotation and abnormal appendix position, compared to OC children (P = 0.037). They were significantly more likely to report irregular stools (P = 0.02) but were satisfied with the cosmetic outcome of the abdominal skin scar in 81% of cases. The KINDL® evaluation showed in the dimensions of QoL, namely ‘body awareness’, ‘mental health’, ‘self-esteem’, ‘family’, ‘friends’ and ‘school’, that there were no significant differences to healthy children. OC/GS parents were satisfied with their children’s physical development and QoL, noting no limitations in normal daily activities. Parents of OC children reported suffering from OC/GS-associated problems (P = 0.028) at the time point of interview. Conclusion: Subjective QoL did not differ significantly between OC and GS children. The satisfaction with the cosmetic outcome of the abdominal skin scar was good. On ultrasound examination, adherent bowel loops and bowel malrotation with resulting stool irregularities affect GS children. OC children’s parents reported suffering from OC/OS-associated problems, and all parents need to be educated about the symptoms of recurrent sub-ileus events or atypical appendicitis.

14 March 2023 in Journal of the Formosan Medical Association
Verified
Journal Article
Open access
MKMelanie Kapapa
Melanie Kapapa
DWDaniela Weber
Daniela Weber
ASAlexandre Serra
Alexandre Serra
An Oesophageal atresia (OA) affects almost 1 in 3500 newborn and its aetiology for development between 4th to 6th pregnancy weeks had not yet been clarified. This retrospective, observational control group-supported (n = 30) examination was performed with OA mothers (n = 20) who were interrogated via specialized questionnaires and interviews to evaluate data on medical pregnancy history including hormonal treatment, changing of life habits (nutrition, diet, medication), drug consumption (alcohol, smoking, illicit drugs) as well as exposure to nuclear waste or poisonous substance exposition. Aim was to assess risk factors during pregnancy and in particular in the first trimester. The body mass index (BMI) prior pregnancy of OA mothers was significant lower (p = 0.022) and the number of mothers with obesity (BMI>30) did not differ to control group mothers (p = 0.081). They had additionally more pre-existing illnesses (p = 0.009) and allergies (p = 0.001). Control group mothers changed dietary habits with higher meat (p = 0.032) and caffeine intake (p = 0.012) compared to OA mothers, which had higher rates of abnormalities during pregnancy (p < 0.001) and 38.7% of them suffered of ≥1 abortion in the past. The ethnical background of OA mothers was more often German (p < 0.033), while OA fathers had a lower socioeconomic status (p = 0.039). Maternal factors like previous abortions, obesity and immunological predispositions like existence of allergies combined with increased daily dairy consumption influenced obviously the occurrence of OA.