Miguel Miranda

Dr. Miguel Miranda

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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1 May 2021 in Critical Reviews in Oncology/Hematology
Verified
Journal Article
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TLTito Palmela Leitão
Tito Palmela Leitão
MMMiguel Miranda
Miguel Miranda
JPJoana Polido
Joana Polido
JMJoão Morais
João Morais
PCPatrícia Corredeira
Patrícia Corredeira
LCLuís Costa
Luís Costa

18 December 2024 in Vaccines
Verified
Journal Article
Open access
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FLFilipe Abadesso Lopes
Filipe Abadesso Lopes
MMMiguel Miranda
Miguel Miranda
AYAndré Ye
André Ye
JRJoana Rodrigues
Joana Rodrigues
PPPaulo Pé-Leve
Paulo Pé-Leve
RSRicardo Pereira e Silva
Ricardo Pereira e Silva
Background/Objectives: Urinary tract infections (UTI) represent a highly frequent and debilitating disease. Immunoactive prophylaxis, such as the polyvalent bacterial whole-cell-based sublingual vaccine MV140, have been developed to avoid antibiotic use. However, the effectiveness of this tool in the Portuguese population is still unknown. This study aims at assessing the effectiveness of treatment with MV140 in a cohort of Portuguese patients presenting with recurrent UTIs. Methods: Prospective observational real-life study of 125 patients with complicated and uncomplicated recurrent UTIs treated with MV140. The primary outcome was a reduction in frequency and severity of UTIs after a follow-up of 12 months. Overall satisfaction, adverse events, and assessment of the effectiveness of MV140 in subgroups of patients with specific risk factors for UTIs were secondary outcomes. Results: In the 12 months after treatment outset, 38% of patients were UTI-free, 34% reported 1 or 2 UTI episodes, and the remaining 28% presented 3 or more UTIs, corresponding to a mean reduction of 3.20 (2.87–3.53, 95% C.I.; p < 0.001) UTI episodes per year per patient. The effectiveness of MV140 was the same regardless of sex, BMI, regular sexual activity, hypertension, diabetes mellitus, depression, paraplegia, performance of intermittent self-catheterization, indwelling bladder catheter, or previous use of other UTI-preventing vaccines. We observed a higher effectiveness in post-menopausal women compared to pre-menopausal (74.7% vs. 59.4%, respectively, p = 0.029). A total of 73% of patients reported a reduction in symptom severity or days of disease, and the mean global satisfaction was 7.52/10. Conclusions: MV140 demonstrated to be effective in the reduction rate of recurrent UTIs in a cohort of adult Portuguese patients.

Verified
Journal Article
Open access
PDF file
TLTito Palmela Leitão
Tito Palmela Leitão
PCPatrícia Corredeira
Patrícia Corredeira
Sandra KucharczakSandra Kucharczak
Sandra Kucharczak
MRMargarida Rodrigues
Margarida Rodrigues
PPPaulina Piairo
Paulina Piairo
LCLuis Costa
Luis Costa
Renal cell carcinoma (RCC) presents as metastatic disease in one third of cases. Research on circulating tumor cells (CTCs) and liquid biopsies is improving the understanding of RCC biology and metastases formation. However, a standardized, sensitive, specific, and cost-effective CTC detection technique is lacking. The use of platforms solely relying on epithelial markers is inappropriate in RCC due to the frequent epithelial-mesenchymal transition that CTCs undergo. This study aimed to test and clinically validate RUBYchip™, a microfluidic label-free CTC detection platform, in RCC patients. The average CTC capture efficiency of the device was 74.9% in spiking experiments using three different RCC cell lines. Clinical validation was performed in a cohort of 18 patients, eight non-metastatic (M0), five metastatic treatment-naïve (M1TN), and five metastatic progressing-under-treatment (M1TP). An average CTC detection rate of 77.8% was found and the average (range) total CTC count was 6.4 (0–27), 101.8 (0–255), and 3.2 (0–10), and the average mesenchymal CTC count (both single and clustered cells) was zero, 97.6 (0–255), and 0.2 (0–1) for M0, M1TN, and M1TP, respectively. CTC clusters were detected in 25% and 60% of M0 and M1TN patients, respectively. These results show that RUBYchip™ is an effective CTC detection platform in RCC.

16 October 2024 in Urology Annals
Verified
Journal Article
Open access
MMMiguel Miranda
Miguel Miranda
JPJoana Polido
Joana Polido
MFMiguel Fernandes
Miguel Fernandes
FLFilipe Lopes
Filipe Lopes
TOTiago Oliveira
Tiago Oliveira
JRJosé Palma dos Reis
José Palma dos Reis
Introduction: Renal cell carcinoma (RCC) often develops a tumor thrombus extending into the inferior vena cava (IVC). Radical nephrectomy with IVC thrombectomy is the standard treatment, although prognostic factors are yet to be properly established. Objectives: The objectives of this study were to review the clinicopathological features of surgically treated patients with RCC and IVC thrombus and to investigate potential prognostic factors. Materials and Methods: This retrospective analysis covered patients with RCC and IVC thrombus who underwent surgical treatment at a tertiary center over 12 years. Results: Of the 32 patients included, 56% and 41% had nodal (N1) and metastatic (M1) diseases, respectively. Thrombus level was 1 in 25% and 4 in 21.9% of cases, according to the Mayo classification. The median follow-up was 17.0 months. The median overall survival (OS) was 20.0 months, with a median OS of 36.0 months in M0 patients and 10.0 months in M1 patients (log-rank P = 0.029). Stage IV disease (T4 and/or M1 status) (hazard ratio [HR]: 2.85, P = 0.021), fat invasion (HR: 2.52, P = 0.044), positive margins (HR: 2.54, P = 0.037), American Society of Anesthesiologists score (HR: 2.59, P = 0.033), tumor size >100 mm (HR: 2.538, P = 0.033), and higher neutrophil-to-lymphocyte ratio ( r 2 = 0.304, P = 0.001) were significantly associated with worse OS in univariate analysis. Thrombus level did not impact prognosis. Conclusions: Certain clinicopathological factors, but not thrombus level, appear to influence prognosis. Prospective multicentric randomized studies are needed to better stratify patient risk, improve prognostic prediction, and evaluate systemic therapy responses.

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DADébora Araújo
Débora Araújo
PBPierre-Emmanuel Bryckaert
Pierre-Emmanuel Bryckaert
MMMiguel Miranda
Miguel Miranda
VRVasco Rodrigues
Vasco Rodrigues
NANicolas De Saint Aubert
Nicolas De Saint Aubert
EMEric Mandron
Eric Mandron
Introduction and objectives: Artificial urinary sphincter (AUS) is a treatment option for women with stress urinary incontinence (SUI) after failure of previous surgery or as a primary procedure in severe intrinsic sphincter deficiency (ISD). The aim of the study was to assess the long-term efficacy and risk factors for surgical revision and definitive explantation of AUS laparoscopic implantation in female patients. Methods: A retrospective review of all women submitted to AUS implantation between April 2005 and March 2023 was conducted. The AUS was implanted via transperitoneal laparoscopic approach, by two experienced surgeons. The primary endpoint was postoperative continence. Continence was defined as no leakage and no pad usage or leakage and/or pad usage with no impact on social life and failure as leakage and/or pad usage impacting social life. As secondary outcomes, clinical predictive factors for AUS revision and definitive explantation were evaluated. Results: In the last 18 years, females with a mean age of 68 ± 12 years-old were submitted to laparoscopic implantation of AUS. Early overall complication rate was 16%, but only one case was Clavien-Dindo ≥ 3. After a median follow-up of 67 months, 22.2% of the patients needed a device revision, the majority due to mechanical device dysfunction. AUS definitive explantation was performed in 16%, mainly due to urethral/vaginal erosion (9.9%) and infection (6.2%). Patients with age ≥ 70 years and follow-up ≥ 10 years significantly predisposed for device revision. At the time of the last follow-up, 72% of the patients were keeping the urinary continency. Conclusions: Laparoscopic AUS implantation in females is an effective treatment for SUI due to ISD. Meanwhile, adequate patient selection, multidisciplinary evaluation and careful expectation management are essential to achieving good results, concerning their significant complication rate.

10 January 2026 in Familial Cancer
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Journal Article
Closed access
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MMMiguel Miranda
Miguel Miranda
CFCatarina Ferreira
Catarina Ferreira
MFMiguel Fernandes
Miguel Fernandes
FLFilipe Abadesso Lopes
Filipe Abadesso Lopes
AYAndré Ye
André Ye
TLTito Palmela Leitão
Tito Palmela Leitão