Publications by authors named "Victoria Gomez-Dos Santos"

Article Synopsis
  • The study aimed to analyze changes in kidney function after radical cystectomy (RC) and identify factors causing these changes to improve early detection and tailored strategies for patient management.
  • A retrospective analysis of 316 patients who underwent RC from 2010 to 2019 was conducted, utilizing a competing risk Cox model to identify long-term chronic kidney disease (CKD) predictors.
  • Results showed that 43.7% of patients developed CKD within five years, with factors such as hypertension, prior hydronephrosis, acute kidney injury, and urinary tract infections increasing the risk; protective factors included a pre-surgery high eGFR.
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Patients with kidney stones (KSFs) are known to have a heightened risk of coronary heart disease (CHD) or stroke. The objective of the present study was to describe the natural history of these complications through the longitudinal analysis of the hospitalizations due to kidney stones in Spain from 1997 to 2021. : A retrospective longitudinal observational study was developed based on nationwide hospitalization data (minimum basic data base).

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Background: Malignant ureteral obstruction (MUO) is a common condition that complicates the course of advanced malignancies. The aims of this study are to analyze the causes, management, and survival of patients with obstructive nephropathy due to malignant ureteric obstruction and to determine prognostic factors. Furthermore, we studied the complications and outcomes in patients who underwent urinary diversion.

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Background: The European Association of Urology (EAU) recommends discussing upfront radical cystectomy for all patients with very high risk (VHR) non-muscle-invasive bladder carcinoma (NMIBC), but the role of bacillus Calmette-Guérin (BCG) treatment remains controversial.

Objective: To analyze oncological outcomes in VHR NMIBC patients (EAU risk groups) treated with adequate BCG.

Design, Setting, And Participants: A multi-institutional retrospective study involving patients with VHR NMIBC who received adequate BCG therapy from 2007 to 2020 was conducted.

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Article Synopsis
  • This study examines the surgical outcomes and predictive factors for long-term survival in patients who underwent surgery for adrenal metastasis at two Spanish hospitals from 2005 to 2021.
  • A total of 33 patients participated, with most undergoing laparoscopic surgery; the majority had lung or kidney tumors, and synchronous metastasis was linked to a higher risk of complications.
  • Results showed that the average progression-free survival was 7.5 months, and disease-specific survival was 22.5 months, with lower survival rates seen in patients with lung cancer compared to those with other types.
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Article Synopsis
  • The study aimed to assess how obesity and overweight affect surgical outcomes in patients undergoing adrenalectomy for adrenal tumors from 2010 to 2022.
  • Results indicated that 9.6% of patients were obese, 54.8% were overweight, and obesity correlated with higher blood pressure, dyslipidemia, and more bilateral tumors compared to non-obese patients.
  • Although overall complication rates were similar, obese patients faced significantly more postoperative complications and longer hospital stays, with obesity identified as a primary independent risk factor.
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Background: Primary testicular lymphoma (PTL) is a rare testicular malignancy, despite being considered the most common testicular tumor in patients older than 60 years. Primary testicular lymphoma represents only 1%-9% of testicular neoplasms. Few studies have been published regarding its clinical features and management.

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  • Incisional hernias are a common complication following kidney transplants, with rates varying from 1.6% to 18%, and previous studies suggest that using a prophylactic mesh can significantly lower this risk in other surgeries.
  • This study is a randomized controlled trial aimed at determining if using ProGrip™ mesh during kidney transplant surgeries can reduce the incidence of hernias compared to standard surgical closure methods.
  • The ProGrip™ mesh is designed for easy fixation and aims to provide a safer, effective alternative that doesn't greatly extend surgery time, potentially improving patient outcomes in the long term.*
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Purpose: to perform an external validation of our predictive model to rule out pheochromocytoma (PHEO) based on unenhanced CT in a cohort of patients with PHEOs and adenomas who underwent adrenalectomy.

Methods: The predictive model was previously developed in a retrospective cohort of 1131 patients presenting with adrenal lesions. In the present study, we performed an external validation of the model in another cohort of 214 patients with available histopathological results.

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Objective: To assess the safety of vascular closure devices in living-donor nephrectomy (LDN), as staplers and non-transfixion techniques (polymer locking and metal clips) are the methods employed to secure the renal vessels during laparoscopic and robotic LDN, but the use of clips has come into question since the United States Food and Drug Administration and manufacturers issued a contraindication.

Methods: A systematic review and meta-analysis were conducted to assess the safety of vascular closure devices (International Prospective Register of Systematic Reviews [PROSPERO] registration: CRD42022364349). The PubMed, Scopus, the Excerpta Medica dataBASE (EMBASE), and the Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS) databases were searched in September 2022.

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  • The article evaluates the effectiveness and safety of cryotherapy as a treatment for renal tumors, focusing on patient outcomes from 2008 to 2021.
  • The study involved 67 patients, predominantly older men, with various types of kidney tumors and reported a low rate of complications, with the majority being resolved conservatively.
  • The results showed high overall and kidney survival rates over time, underscoring cryotherapy's potential as a viable option for patients with specific risk factors.
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Objective: To analyse the applications for drugs in special situations (compassionate use, off-label use and foreign drugs) for solid  tumours, and to assess the level of evidence supporting these applications, as  well as the effectiveness and safety of most frequent drugs.

Method: We performed a cross-sectional study of all applications for drugs in  special situations during 2018 and 2019 in a representative third-level centre.  We collected data about generic names of drugs, clinical indications, and level  of evidence provided on the application form.

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Article Synopsis
  • Penile carcinoma is a rare type of cancer in men that affects the penis and is not as common as other cancers like prostate or kidney cancer.
  • It mainly affects people in developing countries and can lower the quality of life for older men.
  • Advances are being made in understanding this cancer better through blood tests and other methods, which could help doctors find better treatments for those diagnosed with it.
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Introduction: Transplantation surgery teams often have to face complex cases. In certain circumstances, such as occlusion of the iliac vessels or prior pelvic surgery, heterotopic kidney transplantation may not be feasible and orthotopic kidney transplantation (OKT) could be a good alternative. Kidney autotransplantation (KAT) has been described as a potential treatment for complex renovascular, ureteral, or neoplastic conditions.

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The main indication for kidney autotransplantation is ureteric disease, although it is also performed to treat renovascular diseases or neoplasms, such as complex intrasinusal kidney tumors or in patients with a solitary kidney. Only a few cases of kidney autotransplantation in the context of resection of complex retroperitoneal masses have been reported in the literature. CASE PRESENTATION: We report the case of a 26-year-old man with history of nonseminomatous germ cell tumor who had undergone a left radical orchiectomy 3 months earlier.

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Article Synopsis
  • The study compares cardiometabolic health outcomes in patients with nonfunctioning adrenal incidentalomas (NFAI) and autonomous cortisol secretion (ACS) who either underwent adrenal surgery or were managed without surgery.
  • It analyzed 486 NFAI patients (16 surgical, 470 conservative) and 259 ACS patients (42 surgical, 217 conservative) from January 2011 to October 2020, noting that ACS patients had higher hypertension and glucose levels at baseline compared to NFAI patients.
  • Results showed that ACS patients who had surgery experienced significantly greater reductions in glucose and triglyceride levels, while NFAI patients also saw improved blood pressure control post-surgery, indicating adrenalectomy benefits extend beyond just ACS cases.
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Clear cell renal cell carcinoma (ccRCC) is the most common histological subtype arising from renal cell carcinomas. This tumor is characterized by a predominant angiogenic and immunogenic microenvironment that interplay with stromal, immune cells, and tumoral cells. Despite the obscure prognosis traditionally related to this entity, strategies including angiogenesis inhibition with tyrosine kinase inhibitors (TKIs), as well as the enhancement of the immune system with the inhibition of immune checkpoint proteins, such as PD-1/PDL-1 and CTLA-4, have revolutionized the treatment landscape.

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Vascular complications remain common after renal transplantation, occurring in 3% to 15% of patients. These complications can compromise graft function,with graft loss rates ranging from 12.6 to 66.

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Background: Several techniques have been developed to reduce the warm ischaemic injury of donation after circulatory death (DCD) organs before procurement. There are scarce data about the preservation techniques for kidney graft outcomes. The aim of this systematic review was to evaluate the best preservation method for kidney graft outcomes from organs obtained from controlled and uncontrolled DCD.

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Article Synopsis
  • The study investigated presurgical and surgical risk factors linked to intraoperative complications in patients with pheochromocytomas from ten Spanish hospitals between 2011 and 2021, involving 162 surgeries on 159 patients.
  • Findings revealed that 33.3% of the patients experienced intraoperative complications, with hypertensive crises being the most common, followed by prolonged hypotension and hemodynamic instability.
  • Factors increasing the risk of complications included higher levels of urine metanephrine and normetanephrine, larger tumor sizes, uncontrolled blood pressure before surgery, pre-treatment with doxazosin, and the absence of perioperative hydrocortisone treatment.
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Purpose: To identify presurgical and surgical risk factors for postsurgical complications in the pheochromocytoma surgery.

Methods: A retrospective study of pheochromocytomas submitted to surgery in ten Spanish hospitals between 2011 and 2021. Postoperative complications were classified according to Clavien-Dindo scale.

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Article Synopsis
  • The COVID-19 pandemic significantly impacted healthcare systems, causing urologists to adapt by joining multidisciplinary teams to manage the respiratory illness.
  • A review of the literature highlighted key findings about COVID-19, including its symptoms, lab indicators, and the absence of proven treatments, with ongoing clinical trials exploring potential therapies.
  • Urologists, despite lacking traditional experience with respiratory diseases, were able to support COVID-19 management through their training and teamwork, although the pandemic has led to unpredictable long-term effects on urological practices.
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The COVID-19 pandemic caused by SARS-CoV-2 virus has caused an important health impact that has affected renal cell carcinoma management, among other urology areas. The high cancellation rate of surgeries, including those related to renal cancer, will cause an inevitable healthcare overload and probably a potential negative impact on its oncological outcomes, especially in locally advanced and metastatic renal cancer. Kidney cancer scenarios are quite different depending on their stage, distinguishing mainly between low priority of localized disease or high priority of locally advanced and metastatic under active treatment.

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Article Synopsis
  • This phase 1 clinical trial (NCT03738488) aims to evaluate the effectiveness of using 3D models for surgical planning in cases of renal cell carcinoma (RCC) with venous tumor thrombus extension (VTE), compared to traditional CT images.
  • A specific protocol was established for converting CT images into accurate, reproducible, and cost-effective 3D printed models, utilizing software like ITK-snap and VirSSPA for segmentation.
  • After testing with ten different models, four were finalized that accurately represented the anatomy, maintained structural integrity during surgery simulations, and were produced with a standardized, affordable printing process, with average design and printing costs of about €33.4 and 38.5 hours
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