Publications by authors named "Ketan Shah"

Objective: To evaluate the relevance of established surgical risk calculators (SRCs) for predicting complications in patients undergoing percutaneous lung cryoablation (PLC).

Methods: The institution's database was queried for PLC procedures from March 2015 to May 2024, excluding those patients with concomitant local therapies or five or more lesions treated in a single setting. Demographics, frailty metrics as defined by the surgical literature, and procedural variables were collected.

View Article and Find Full Text PDF

Osseointegrated implants, either in native bone or in reconstructed bone, have allowed clinicians to provide greater function and esthetics, following treatment of head and neck pathology. The survival of these implants may be in variance with the success and survival we see with osseointegrated implants in conventional, nonablative rehabilitation. This article looks at the survival and complications with using osseointegrated implants in rehabilitation of the maxillofacial region.

View Article and Find Full Text PDF

Image-guided ablation procedures have become a mainstay in cancer therapy. Typically performed from a percutaneous approach, thermal-based ablation procedures rely heavily on imaging guidance both prior to and during the procedure itself. Advances in imaging as they relate to ablation procedures are as important to successful treatments as advancements in the ablation technology itself.

View Article and Find Full Text PDF

The combination of teneligliptin hydrobromide hydrate and pioglitazone hydrochloride in pharmaceutical formulations has improved type 2 diabetes management. Two chromatographic methods TLC-densitometry and RP-HPLC were developed for simultaneous quantification of teneligliptin hydrobromide hydrate and pioglitazone hydrochloride in pharmaceutical formulations, ensuring accuracy and stability assessment. The TLC method uses a mobile phase of methanol, toluene, ethyl acetate and triethylamine (1:7:2:0.

View Article and Find Full Text PDF

Purpose: Venous thromboembolism (VTE) is a major contributor to the mortality of cancer patients. Mechanical thrombectomy (MT) is an endovascular technique that physically removes a thrombus without thrombolytics. The purpose of this study was to evaluate safety, efficacy, and clinical outcomes following MT for lower extremity DVT in cancer patients.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate how effectively two different image registration methods—deformable (DIR) and rigid (RIR)—can quantify minimal ablative margins (MAM) in patients undergoing thermal ablation for colorectal liver metastasis (CLM).
  • Out of 72 patients analyzed, DIR showed better registration accuracy (0.96-0.98) compared to RIR (0.67-0.98), along with a higher predictive capability for local tumor outcomes, evidenced by a higher AUC (0.89 vs. 0.72).
  • The results suggest that DIR is a superior method for quantifying MAM during intraprocedural CT imaging, thus improving the prediction of local tumor outcomes after thermal
View Article and Find Full Text PDF

Purpose: While there are several prognostic classifiers, to date, there are no validated predictive models that inform treatment selection for oropharyngeal squamous cell carcinoma (OPSCC).Our aim was to develop clinical and/or biomarker predictive models for patient outcome and treatment escalation for OPSCC.

Experimental Design: We retrospectively collated clinical data and samples from a consecutive cohort of OPSCC cases treated with curative intent at ten secondary care centers in United Kingdom and Poland between 1999 and 2012.

View Article and Find Full Text PDF

Patients with cancer are at increased risk of hospitalisation and mortality following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. However, the SARS-CoV-2 phenotype evolution in patients with cancer since 2020 has not previously been described. We therefore evaluated SARS-CoV-2 on a UK populationscale from 01/11/2020-31/08/2022, assessing case-outcome rates of hospital assessment(s), intensive care admission and mortality.

View Article and Find Full Text PDF

Dialysis access steal syndrome (DASS) is a phenomenon known to occur following creation of an arteriovenous fistula or arteriovenous graft. The clinical presentation of DASS is characterized by symptoms of limb ischemia due to diversion of arterial flow from the distal extremity. Ischemic monomelic neuropathy (IMN) is a rare subtype of DASS classically described as an acute, isolated presentation of peripheral neuropathy following dialysis access creation.

View Article and Find Full Text PDF

Aim: we describe our experience of validating departmental pathologists for digital pathology reporting, based on the UK Royal College of Pathologists (RCPath) "Best Practice Recommendations for Implementing Digital Pathology (DP)," at a large academic teaching hospital that scans 100% of its surgical workload. We focus on Stage 2 of validation (prospective experience) prior to full validation sign-off.

Methods And Results: twenty histopathologists completed Stage 1 of the validation process and subsequently completed Stage 2 validation, prospectively reporting a total of 3777 cases covering eight specialities.

View Article and Find Full Text PDF

Purpose: Head and neck cancer patients can face debilitating treatment related side-effects, resulting in requirement for support and negatively impacting on care outcomes. This study aimed to develop a digital recovery support package and assess its acceptability with head and neck cancer patients to support their information needs and assist with their self-management. It provided additional support through development of a WebXR platform 'recovery' package, which allowed patients to live a 'virtual reality' experience, entering and moving inside a 'virtual room', accessing targeted resources and specific learning materials related to their cancer.

View Article and Find Full Text PDF
Article Synopsis
  • This study looked at how two imaging techniques, T1 mapping and oxygen-enhanced MRI, can help understand treatment for patients with HPV positive throat cancer.
  • The researchers tested 12 patients by taking pictures of their tumors while they breathed normal air and oxygen during their treatment plan.
  • Although the treatment was mostly successful, they found it hard to draw clear conclusions about how the imaging results predict patient outcomes, but they believe more studies with these techniques could help in the future.
View Article and Find Full Text PDF

Importance: Accurate identification of patient groups with the lowest level of protection following COVID-19 vaccination is important to better target resources and interventions for the most vulnerable populations. It is not known whether SARS-CoV-2 antibody testing has clinical utility for high-risk groups, such as people with cancer.

Objective: To evaluate whether spike protein antibody vaccine response (COV-S) following COVID-19 vaccination is associated with the risk of SARS-CoV-2 breakthrough infection or hospitalization among patients with cancer.

View Article and Find Full Text PDF

Video 1EUS-guided embolization of splenic arterial pseudoaneurysm refractory to previous percutaneous transcatheter arterial embolizations.

View Article and Find Full Text PDF

Background And Purpose: The imaging technique known as Oxygen-Enhanced MRI is under development as a noninvasive technique for imaging hypoxia in tumours and pulmonary diseases. While promising results have been shown in preclinical experiments, clinical studies have mentioned experiencing difficulties with patient motion, image registration, and the limitations of single-slice images compared to 3D volumes. As clinical studies begin to assess feasibility of using OE-MRI in patients, it is important for researchers to communicate about the practical challenges experienced when using OE-MRI on patients to help the technique advance.

View Article and Find Full Text PDF

This study aimed to explore the hypothesis that the stage of breast cancer at initial diagnosis in 2020 is more advanced compared with 2019. Tumor, node, metastasis and Union for International Cancer Control (UICC) stages of new breast cancer diagnoses at the Bucks Breast Unit from May 2019 to October 2020 were reviewed. A p < 0.

View Article and Find Full Text PDF

A wide variety of wires are available for use in interventional radiology, with wires demonstrating differences in construction, diameter, length, coating, shape, and taper. It is crucial to understand the difference in characteristics between these wires to select the most effective and safe wire for the intended purpose when undertaking a procedure. This article reviews the qualities and functions of different types of wires to aid in this decision-making process.

View Article and Find Full Text PDF
Article Synopsis
  • The COVID-19 pandemic led to significant changes in head and neck oncology practices in the UK, with varying responses from different medical centers due to delayed guidelines.
  • A multi-centre survey by the NCRI aimed to examine standard practices before and during the pandemic, focusing on treatment modifications related to feeding tubes, radiotherapy, and chemotherapy.
  • The survey found that most participating centers made at least one modification, including changes in radiation treatment schedules and the cessation or adjustment of chemotherapy protocols, reflecting a shift to adapt to the pandemic's challenges.
View Article and Find Full Text PDF