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Dive into the research topics where Rajinikanth Ayyathurai is active.

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Featured researches published by Rajinikanth Ayyathurai.


BJUI | 2007

Active surveillance; a reasonable management alternative for patients with prostate cancer: the Miami experience

Mark S. Soloway; Cynthia T. Soloway; Steve K. Williams; Rajinikanth Ayyathurai; Bruce R. Kava; Murugesan Manoharan

To examine the outcome of patients diagnosed with ‘low‐risk’ prostate cancer managed by active surveillance (AS).


BJUI | 2008

Factors affecting erectile function after radical retropubic prostatectomy: results from 1620 consecutive patients.

Rajinikanth Ayyathurai; Murugesan Manoharan; Alan M. Nieder; Bruce R. Kava; Mark S. Soloway

To report the return of erectile function in 1620 consecutive men after radical retropubic prostatectomy (RRP), chosen by half of men diagnosed with clinically localized prostate cancer, and the goal of which is to completely excise the tumour while preserving continence and erectile function.


BJUI | 2009

Radical cystectomy for urothelial carcinoma of the bladder: an analysis of perioperative and survival outcome

Murugesan Manoharan; Rajinikanth Ayyathurai; Mark S. Soloway

To review the outcomes in a large group of patients treated with radical cystectomy (RC) for urothelial cancer (UC) of the bladder, by one surgical team.


Journal of Endourology | 2009

Management of Renal Masses with Laparoscopic-Guided Radiofrequency Ablation versus Laparoscopic Partial Nephrectomy

Vincent G. Bird; Robert I. Carey; Rajinikanth Ayyathurai; Victoria Y. Bird

BACKGROUND AND PURPOSE Laparoscopic-guided radiofrequency ablation (LRFA) has been introduced as a minimally invasive nephron-sparing management option for renal tumors. Many patients who desire treatment present with multiple comorbidities, which poses a therapeutic challenge. Our purpose is to determine if multipass LRFA is comparable, in terms of surgical risk and immediate postoperative outcomes, to laparoscopic partial nephrectomy (LPN). PATIENTS AND METHODS A retrospective study identified 36 and 33 patients who underwent LRFA and LPN, respectively. Perioperative demographic data, tumor characteristics, and follow-up data were evaluated. Statistical analysis was performed using the Student t test and chi-square analysis. RESULTS Age, American Society of Anesthesiology score, and Charlson Comorbidity Index were significantly higher in the LRFA group than the LPN group (P < 0.001). Average tumor size was 2.8 cm and 3.1 cm for the LRFA and LPN groups, respectively. There were no significant differences in change between the preoperative and postoperative creatinine/glomerular filtration rate values or perioperative complication rates for the groups. Estimated blood loss and length of stay were significantly lower for the LRFA group than the LPN group (P < 0.05). Follow-up ranged 6 to 23 months and 6 to 58 months for the LRFA and the LPN groups, respectively. There has been no evidence of tumor recurrence in the follow-up period. CONCLUSIONS We present our initial report comparing patients undergoing LRFA v LPN for the management of renal tumors. Our preliminary results with our experience with multipass laparoscopic-guided RFA demonstrate that this technique can be safely used in an elderly, higher risk population. Long-term follow-up is needed to determine oncologic efficacy.


The Journal of Sexual Medicine | 2011

Contemporary Revision Penile Prosthesis Surgery Is Not Associated with a High Risk of Implant Colonization or Infection: A Single-Surgeon Series

Bruce R. Kava; Prashanth Kanagarajah; Rajinikanth Ayyathurai

INTRODUCTION Revision penile prosthesis surgery has traditionally been associated with a greater risk of postoperative infection than primary implant placement. This has been attributed to the high prevalence of asymptomatic bacteria found surrounding the implant at the time of revision surgery. AIM To validate whether contemporary revision surgery remains associated with a high risk of asymptomatic colonization and postoperative infection. METHODS A comprehensive, prospective database consisting of consecutive patients undergoing primary and revision penile prosthesis surgery at our center was analyzed. MAIN OUTCOME MEASURES The infection risk in primary and revision implant surgery was compared. The prevalence of asymptomatic implant colonization during revision surgery, and whether this was associated with clinical infection was evaluated. The spectrum of bacterial species causing infection in this contemporary single-surgeon series was described. RESULTS One hundred seventeen primary and 72 revision implant recipients were studied. Infection developed in four (3.4%) patients undergoing primary implants, two (4.3%) patients undergoing removal and replacement for mechanical malfunction, and three (12%) patients undergoing rerouting for extrusion (P = 0.26). Intraoperative cultures were positive in 5 (9.8%) of 51 revision patients, none of whom developed infections. Organisms causing infection included Staphylococcus aureus and Enterobacter aerogenes. Unexpectedly, an adjuvant, alcohol-based skin prep in our last 83 patients reduced the infection risk to 1.2%. CONCLUSIONS In our series, the infection risk associated with revision of malfunctioning devices was no greater than primary implant placement. Rerouting was associated with a higher infection risk, likely due to technical factors, and not implant colonization. Less than 10% of our revision implants were colonized, and this had no bearing on the development of a postoperative infection. S. epidermidis was not the most common organism implicated in device infections. Finally, our experience with an adjuvant, alcohol-based skin prep warrants further randomized prospective evaluation.


BJUI | 2007

Prostatic involvement by urothelial carcinoma of the bladder: Clinicopathological features and outcome after radical cystectomy

Rajinikanth Ayyathurai; Pablo Gomez; Tony Luongo; Mark S. Soloway; Murugesan Manoharan

To review the long‐term outcome of prostatic involvement in patients with bladder cancer (BC) treated with radical cystectomy (RC), as urothelial carcinoma (UC) involving the prostate occurs in such patients, and prostatic invasion by UC is by transmural invasion (contiguous), or when UC develops from the epithelium of the prostatic urethra (not contiguous).


Cancer | 2012

Molecular characterization of kidney cancer: Association of hyaluronic acid family with histological subtypes and metastasis

Andrew Chi; Samir P. Shirodkar; Diogo O. Escudero; Obi Ekwenna; Travis Yates; Rajinikanth Ayyathurai; Michael Garcia-Roig; Jeffrey Gahan; Murugesan Manoharan; Vincent G. Bird; Vinata B. Lokeshwar

Molecular profiling of renal cell carcinomas (RCCs) may improve the distinction between oncocytoma and malignant RCC subtypes and aid in early detection of metastasis. The hyaluronic acid (HA) family includes HA synthases (HAS1, HAS2, HAS3), hyaluronidases (HYAL‐1, HYAL‐2, HYAL‐3, HYAL‐4, PH20, HYAL‐P1), and HA receptors (CD44s, CD44v, RHAMM). HA family members promote tumor growth and metastasis. The authors evaluated the expression of HA family members in kidney specimens.


BJUI | 2012

Bland thrombus association with tumour thrombus in renal cell carcinoma: analysis of surgical significance and role of inferior vena caval interruption

Rajinikanth Ayyathurai; Michael Garcia-Roig; Michael A. Gorin; Javier González; Murugesan Manoharan; Bruce Kava; Mark S. Soloway; Gaetano Ciancio

Study Type – Therapy (case series)


BJUI | 2011

Radical cystectomy for BCG failure: Has the timing improved in recent years?

Mark S. Soloway; David Hepps; Devendar Katkoori; Rajinikanth Ayyathurai; Murugesan Manoharan

Study Type – Therapy (case series)


Urology Annals | 2012

Current concepts in the management of adrenal incidentalomas

Prashanth Kanagarajah; Rajinikanth Ayyathurai; Murugesan Manoharan; Govindarajan Narayanan; Bruce R. Kava

Adrenal tumors are among the commonest incidental findings discovered. The increased incidence of diagnosing adrenal incidentalomas is due to the widespread availability and use of noninvasive imaging studies. Extensive research has been conducted to define a cost-effective diagnostic and therapeutic protocol to guide physicians in managing incidental adrenal lesions. However, there is little consensus on the optimal management strategy. Published literature to date, describes a wide spectrum of treatment options ranging from excision of all adrenal lesions regardless of the size and functional status to extensive hormonal and radiological evaluation to avoid surgery. In this review, we present a comprehensive overview of the presentation, evaluation and management of adrenal incidentalomas. Additionally, we propose a management algorithm to optimally manage these tumors.

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Angelo E. Gousse

Florida International University

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