Sofia Sjöström

Dr. Sofia Sjöström

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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1 October 2020 in Journal of Pediatric Urology
Verified
Journal Article
Open access
MAMarie Andersson
Marie Andersson
SSSofia Sjöström
Sofia Sjöström
MDMonika Doroszkiewicz
Monika Doroszkiewicz
LÖLisa Örtqvist
Lisa Örtqvist
KAKate Abrahamsson
Kate Abrahamsson
GHGundela Holmdahl
Gundela Holmdahl
Proximal hypospadias repair is associated with a considerable complication risk. Long-term follow-up is required to present realistic expectations in pre-operative counseling. To investigate adolescents after childhood surgery for proximal hypospadias in a prospective cohort study describing the urological outcome, complication rates and patient satisfaction with penile appearance. 39 adolescents ≥14 years with penoscrotal to perineal hypospadias and primary urethroplasty (tubularized incised plate (TIP), preputial flap as Onlay or tubularized (Duckett)) from 1996 to 2005 at a single center were evaluated. The clinical assessment, at Md 16.5 years (14-25), included voiding history, genital examination including the Hypospadias Objective Scoring Evaluation (HOSE), uroflowmetry plus chart data from previous urinary flows and evaluation of patient satisfaction using the Penile Perception Score (PPS). Twenty-nine patients with penoscrotal and 10 with scrotal/perineal hypospadias underwent surgery with TIP (N = 14), Onlay (N = 14) and Duckett (N = 11). Uroflows improved significantly compared with prepubertal maximal flows. Impaired flow rate (3 years, illustrating the need for long-term follow-up. Patient satisfaction with a deviant meatal position is rarely reported [1,2]. Our results support a conservative approach to an asymptomatic retracted meatus. Limitations of this descriptive study are the non-comparable groups and the retrospective data for correlation, impeding evaluation of prognostic outcome-factors. The shorter penile length found in patients after plication, and increased curvature after TIP, is therefore merely descriptive. However, the findings are in line with earlier publications suggesting limited use of TIP, and plication (recommending ventral lengthening instead) to avoid penile shortening and curvature in these cases [3-5]. The urological long-term outcome after proximal hypospadias repair is good, although late reoperations are common. In adolescence, patients were dissatisfied with the short penile length but satisfied with meatal position, indicating that in proximal hypospadias, preserving penile length and correcting curvature are prioritized over a distal meatus.

1 June 2020 in Journal of Pediatric Urology
Verified
Journal Article
Closed access
JNJosefin Nordenström
Josefin Nordenström
GKGiasemi Koutozi
Giasemi Koutozi
GHGundela Holmdahl
Gundela Holmdahl
KAKate Abrahamsson
Kate Abrahamsson
RSRune Sixt
Rune Sixt
SSSofia Sjöström
Sofia Sjöström

1 May 2009 in Journal of Urology
Verified
Journal Article
Closed access
SSSofia Sjöström
Sofia Sjöström
UJUlf Jodal
Ulf Jodal
RSRune Sixt
Rune Sixt
MBMarc Bachelard
Marc Bachelard
USUlla Sillén
Ulla Sillén
We sought to study renal abnormality and renal function through time in infants with high grade vesicoureteral reflux. This prospective observational study included 115 infants (80 boys and 35 girls) younger than 1 year with grade III to V vesicoureteral reflux. The diagnosis was made after prenatal ultrasound in 26% of the patients and after urinary tract infection in 71%. Patients were followed by renal scintigraphy, 51chromium edetic acid clearance and video cystometry. Median followup was 62 months. Renal abnormality, which was found in 90% of the children at followup, was generalized in 71% and focal in 29%. The abnormality was bilateral in 28% of the affected patients. Total glomerular filtration rate was less than 80% of expected in 30% of the patients. Single kidney function was less than 40% of expected total glomerular filtration rate in 71% of the patients. Renal status (parenchymal abnormality and function) remained unchanged through time in 84 of 108 available cases (78%), improved in 5 (5%) and deteriorated in 19 (18%). Predictive factors for deterioration were recurrent febrile urinary tract infection, bilateral abnormality and reduced total glomerular filtration rate. Deteriorated renal status was more common in cases diagnosed prenatally than in those detected after urinary tract infection. Among these infants with high grade vesicoureteral reflux renal abnormality was frequent and was associated with subnormal filtration of one of the kidneys. Decreased total glomerular filtration rate was seen in about a third of the patients. Overall deterioration of renal status was seen in only a fifth of the patients. Infection control seems to be an important factor to minimize the risk.

10 March 2023 in Acta Paediatrica
Verified
Journal Article
Open access
CGCathrine Gatzinsky
Cathrine Gatzinsky
USUlla Sillén
Ulla Sillén
STSarah Thornberg
Sarah Thornberg
SSSofia Sjöström
Sofia Sjöström
Aim: During infancy bowel habits change. Most infants with gastrointestinal problems have a functional gastrointestinal disorder (FGID), a major reason for visiting paediatricians. This study aims to provide data on stool frequency and consistency during the first year, prevalence rates for functional constipation (FC) and to establish associations with relevant demographic data. The occurrence of infant colic (IC) and infant dyschezia (ID) was also reported.Methods: This prospective observational birth‐cohort study enrolled 122 healthy full‐term infants. Questionnaires were completed at 2 weeks and 2, 6 and 12 months.Results: Stool frequency decreased with age and consistency changed, with fewer runny stools. At 2 weeks, 24.3% had at least one of the studied FGID. FC was found in 2.6%–14.3% (up to 12 months), IC was found in 4.9%–3.4% (up to 2 months) and ID in 22.1%–3.9% (up to 6 months). Infants with an FGID had a lower weight and more healthcare visits than infants without. Breastfeeding and a high percentage of runny stools at 2 weeks of age decreased the odds of developing FC.Conclusion: Data on bowel habits and the prevalence of FC, IC and ID are presented. FGID during infancy is common and affects children's well‐being, while their families need support and advice.

22 May 2024 in Acta Paediatrica
Verified
Journal Article
Open access
MAMarie Andersson
Marie Andersson
LHLana Hadi
Lana Hadi
MBMichaela Dellenmark Blom
Michaela Dellenmark Blom
USUlla Sillen
Ulla Sillen
SSSofia Sjöström
Sofia Sjöström
KAKate Abrahamsson
Kate Abrahamsson
Aim: Care for people with spina bifida can be improved. This may be done by evaluating mortality rates and causes of death.Methods: Between 1973 and 2021, 1735 people with spina bifida appeared in registers of the Swedish population. Survival rates and causes of death were calculated according to age and decade.Results: Over almost 50 years, the prevalence of spina bifida decreased from 5.2 to 1.2 per 10 000 births. Mortality fell sharply during the first year of life, with survival rising from 75% to 94%. For children aged 2–18 years and adults, mortality rates were low and differences between decades were minimal.Causes of childhood deaths were congenital abnormalities, hydrocephalus and infections, the latter two also in adults. Adult causes also included self‐inflicted injuries and substance abuse, with suicidal or unclear intent, both more common than in the general population. Bladder malignancies were also more frequent, although after reconstructive bladder surgery, mortality rates were similar.Conclusion: Survival in the first year of life increased in children with spina bifida, whereas there was no difference in survival rates between adults born between 1973 and 1999. For adults, proactive prevention methods regarding self‐inflicted injury, substance abuse and bladder cancer are warranted.

30 May 2023 in Journal of Paediatrics and Child Health
Verified
Journal Article
Open access
CGCathrine Gatzinsky
Cathrine Gatzinsky
USUlla Sillén
Ulla Sillén
HBHelena Borg
Helena Borg
HBHåkan Boström
Håkan Boström
KAKate Abrahamsson
Kate Abrahamsson
SSSofia Sjöström
Sofia Sjöström
AimTransabdominal rectal ultrasound (TRU) is used to measure transverse rectal diameter (TRD) in order to diagnose functional constipation (FC) and megarectum, and to evaluate treatment. The proposed cut-off value is 3.0 cm. Currently, no standardised values exist for children below the age of 4. We used repeated TRUs to establish reference TRD values in healthy infants and to describe rectal diameter in infants with FC. MethodsThis prospective observational cohort study enrolled healthy term babies from a maternity department. TRD measurements were taken at 2 and 12 months of age, and questionnaires completed in interviews helped diagnose FC according to Rome III criteria. ResultsTwo hundred TRUs were performed on 110 infants (62 males). In infants without FC anytime, the mean TRD at 2 months was 1.56 (SD 0.32) cm and at 12 months 1.78 (0.47) cm, while the 95th percentiles were 2.26 and 2.64 cm, respectively. In 77 infants with two TRUs, the mean increase was 0.21 cm (95% confidence interval: 0.099-0.318). Thirteen infants were diagnosed with FC during the study period. At 2 and 12 months of age, there was no difference in TRD between infants with and without FC. ConclusionTRD increased from 2 to 12 months. We suggest 2.3 cm as an upper limit for normal TRD at 2 months and 2.6 cm at 12 months. Infants diagnosed with FC did not have a greater TRD than infants without, either before or after treatment. Further studies are needed to evaluate the usefulness of TRU in infants with FC or megarectum.