Publications by authors named "Karrthik Krishnamurthy"

Amyotrophic Lateral Sclerosis (ALS) and Frontotemporal Dementia (FTD) are debilitating neurodegenerative diseases with shared pathological features like transactive response DNA-binding protein of 43 kDa (TDP-43) inclusions and genetic mutations. Both diseases involve synaptic dysfunction, contributing to their clinical features. Synaptic biomarkers, representing proteins associated with synaptic function or structure, offer insights into disease mechanisms, progression, and treatment responses.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of Ga-68 PSMA PET/CT scans in detecting prostate cancer (PCa) in patients with serum PSA levels under 50 ng/ml, due to the low predictive value of current biopsy methods.
  • A retrospective analysis was conducted on 64 patients suspected of PCa, comparing PSMA PET/CT results to traditional 12-core TRUS-guided biopsies for diagnostic performance.
  • The PSMA PET/CT showed promising results with 74% sensitivity and 92% specificity, indicating it could be a more reliable tool for detecting PCa compared to standard methods, especially at higher PSA levels and Gleason scores.
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A 53-year-old female presented with left loin pain and imaging showed left pan-ureteral stricture secondary to tuberculosis. The renal unit was salvaged by percutaneous nephrostomy. She was planned for ileal ureteric replacement.

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We report a case of iatrogenic rectourethral fistula (RUF) in an elderly man with benign prostatic enlargement and acute urinary retention, following a transurethral resection of prostate (TURP). This patient presented a unique challenge of tackling the RUF in the presence of a large residual prostate gland and urinary tract infection. RUF was repaired only after getting the access to the fistula following transvesical prostatectomy.

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A 20-year-old man presented to the department of neurology with diplopia, occipital headache and right flank pain for 1-week duration. CT of the brain revealed skull metastasis with heterogeneously enhancing dural-based mass lesion at the occipital region. Positron emission tomography revealed tracer avid soft tissue mass involving the upper pole of the right kidney with loss of fat planes with the inferior surface of the liver.

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Background: Dorsal or ventral single layer repair can be impractical when there is an inadequate strip of urethra. Staged urethroplasty and non-transecting bilayer substitution urethroplasty are the other alternatives.

Objectives: To assess the safety and outcome of non-transecting dorsal onlay and ventral inlay buccal mucosal substitution urethroplasty technique.

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Inadvertent placement of the urinary catheter into the ureter can cause several complications. We describe a rare complication during cystogram due to unrecognized inadvertently placed urinary catheter in ureter, resulting in a life-threatening situation. A 47-year-old multiparous female underwent total laparoscopic hysterectomy for adenomyosis.

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