João Miguel Casanova

Dr. João Miguel Casanova


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

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

Representative Publications

View All Publications
26 December 2024 in Cancers
Verified
Journal Article
Open access
PDF file
JCJoão Miguel Casanova
João Miguel Casanova
ABAlexandru Babiciu
Alexandru Babiciu
GDGonçalo Duarte
Gonçalo Duarte
ACAna Costa
Ana Costa
SSSofia Silvério Serra
Sofia Silvério Serra
JLJorge Lima
Jorge Lima
Objective: Our primary objective was to evaluate the oncologic outcomes of patients with abnormal p53 FIGO grade 3 (high-grade) endometrioid endometrial cancer. As secondary objectives, we determined the global prevalence of abnormal p53 in grade 3 endometrioid endometrial carcinomas and the geographical variations. Methods: The following electronic databases were searched: PubMed/Medline, EMBASE, Cochrane Library, Scopus, and Web of Science. We followed the Meta-Analysis for Observational Studies in Epidemiology guidelines and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. This review was preregistered with PROSPERO (no: CRD42023495192). Bias was assessed using the Quality in Prognosis Studies tool. For time-to-event data, the effect of p53 status on grade 3 endometrial cancer was described using hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). Overall survival and progression-free survival were analyzed using one- and two-stage approaches, the Kaplan–Meier method, and Cox proportional hazards models. Results: Fifty-seven studies with 2528 patients were included. Patients with abnormal p53 had an increased risk of death (HR, 1.29 (95% CI, 1.11–1.48); I2 = 88%) and disease progression (HR, 1.63; 95% CI, 1.42–1.88; I2 = 2%) compared with patients with wildtype p53 G3 endometrial cancer. The global pooled prevalence of abnormal p53 was 30% (95% CI, 25–34%; tau2 = 0.02; I2 = 74%), with the highest prevalence being found in studies conducted in Asia (95% CI, 27–41%; tau2 = 0.01; I2 = 52%). Conclusions: Abnormal p53 grade 3 endometrioid endometrial cancer is more common in Asia, and it is associated with decreased overall survival and progression-free survival.

1 April 2024 in Journal of Surgical Case Reports
Verified
Journal Article
Open access
PDF file
ACAna Costa
Ana Costa
DADiogo Albergaria
Diogo Albergaria
JAJoana Almeida
Joana Almeida
MNMónica Nave
Mónica Nave
JOJoana Oliveira
Joana Oliveira
JCJoão Miguel Casanova
João Miguel Casanova
The treatment of recurrent ovarian cancer has been based on systemic therapy. The role of secondary cytoreductive surgery has been addressed recently in several trials. Imaging plays a key role in helping the surgical team to decide which patients will have resectable disease and benefit from surgery. The role of staging laparoscopy and several imaging and clinical scores has been extensively debated in the field. In other surgical fields there have been reports of using 3D imaging software and 3D printed models to help surgeons better plan the surgical approach. To the best of our knowledge, we report the first case of a patient with recurrent ovarian cancer undergoing 3D modeling before secondary cytoreductive surgery. The 3D modeling was of most value to evaluate the extension of the disease in our patient who underwent a successful secondary cytoreductive surgery and is currently free of the disease.

31 May 2025 in Journal of Surgical Case Reports
Verified
Journal Article
Open access
GBGiulia Bruni
Giulia Bruni
MTMarta Tripepi
Marta Tripepi
ACAna Gomes da Costa
Ana Gomes da Costa
AGAdalgisa Guerra
Adalgisa Guerra
ACAna Catarino
Ana Catarino
JCJoão Miguel Casanova
João Miguel Casanova
Struma ovarii is a rare form of monodermal ovarian teratoma composed predominantly of mature thyroid tissue. Although benign in most cases, it can present with ascites and elevated serum CA125 levels, mimicking ovarian carcinoma. We report the case of a 38-year-old woman with a complex ovarian mass, ascites, and an elevated CA125 level—an initial presentation highly suggestive of malignancy that was ultimately diagnosed as benign struma ovarii following surgical intervention. This case underscores how struma ovarii, though uncommon, can masquerade as ovarian cancer and may even be discovered incidentally in an asymptomatic, premenopausal patient.