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Dive into the research topics where Rajan S. Patel is active.

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Featured researches published by Rajan S. Patel.


Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2010

Clinicopathologic and therapeutic risk factors for perioperative complications and prolonged hospital stay in free flap reconstruction of the head and neck

Rajan S. Patel; Stuart A. McCluskey; David P. Goldstein; Leonid Minkovich; Jonathan C. Irish; Dale H. Brown; Patrick J. Gullane; Joan E. Lipa; Ralph W. Gilbert

We aimed to determine predictors of morbidity in patients undergoing microvascular free flap reconstruction of the head and neck.


Anz Journal of Surgery | 2009

Prognostic factors in the surgical treatment of patients with oral carcinoma

Rajan S. Patel; Jonathan R. Clark; Richard Dirven; Rebecca Wyten; Kan Gao; Christopher J. O’Brien

The aim of the study was to analyse the clinical outcome of patients treated surgically for oral carcinoma. A retrospective cohort study was undertaken of 356 patients with oral cavity cancer whose clinicopathological information had been collected prospectively onto a dedicated head and neck database. Disease recurrence and survival were assessed. Neck metastases occurred in 42% of patients. Tumour thickness (both 2 and 5 mm) predicted the presence of nodal metastases. Both pathological T stage (P < 0.001) and tumour thickness cut‐off of 5 mm (P = 0.03) were independent predictors of disease‐specific survival. With a median follow up of 41 months, overall survival at 5 years was 59% and disease‐specific survival was 73%. Patients with thick tumours have a high risk of nodal metastases and this supports the liberal use of elective selective neck dissection in patients with clinically negative necks.


Laryngoscope | 2008

The Prognostic Impact of Extent of Bone Invasion and Extent of Bone Resection in Oral Carcinoma

Rajan S. Patel; Richard Dirven; Jonathan R. Clark; Brian D. Swinson; Kan Gao; Christopher J. O'Brien

Objective: The prognostic impact of mandibular invasion by oral squamous cell carcinoma (SCC) is controversial. The objective of this study was to assess the effect that extent of bone invasion has on recurrence and survival in patients treated with marginal and segmental mandible resection.


Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2010

Impact of positive frozen section microscopic tumor cut-through revised to negative on oral carcinoma control and survival rates†

Rajan S. Patel; David P. Goldstein; Jennifer Guillemaud; Guillem Bruch; Dale H. Brown; Ralph W. Gilbert; Patrick J. Gullane; Kevin Higgins; Jonathan C. Irish; Danny Enepekides

The objective of the study was to evaluate the prognostic and therapeutic implications of an initial positive frozen section margin that was revised until negative (microscopic tumor cut‐through), and to analyze the influence of microscopic margin status on oral carcinoma control.


Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2008

Effectiveness of selective neck dissection in the treatment of the clinically positive neck

Rajan S. Patel; Jonathan R. Clark; Kan Gao; Christopher J. O'Brien

The aim of this work was to determine whether or not patients treated with therapeutic selective neck dissection for head and neck squamous cell carcinoma were oncologically disadvantaged compared with those having comprehensive procedures.


Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2009

Circumferential pharyngeal reconstruction: History, critical analysis of techniques, and current therapeutic recommendations

Rajan S. Patel; David P. Goldstein; Dale H. Brown; Jonathan C. Irish; Patrick J. Gullane; Ralph W. Gilbert

Reconstruction of circumferential pharyngeal defects following total pharyngolaryngectomy presents major challenges with respect to surgical morbidity and restoration of functional deficits, which are often made more demanding by the increasing trend to utilize primary chemoradiation protocols with surgery reserved for salvage cases. The present review evaluates the reconstructive techniques described in the literature, including historical techniques as well as more recent innovative methods. Each technique is critically appraised with particular reference to postoperative morbidity and functional rehabilitation. Treatment recommendations are made based on the available evidence.


Histopathology | 2007

Cyclin D1 and p16 expression in pleomorphic adenoma and carcinoma ex pleomorphic adenoma of the parotid gland.

Rajan S. Patel; Barbara Rose; H Bawdon; Angela Hong; Cheok Soon Lee; S Fredericks; Kan Gao; Christopher J. O'Brien

Aims:  To compare cyclin D1 and p16ink4 (p16) expression in normal tissue, pleomorphic adenoma (PA) and carcinoma ex pleomorphic adenoma (CXPA) of the parotid gland.


Current Opinion in Otolaryngology & Head and Neck Surgery | 2011

Supraclavicular artery island flap for reconstructing defects in the head and neck region

Raymond J.T. Kim; Mark E. Izzard; Rajan S. Patel

Purpose of reviewThe supraclavicular artery island flap is a rotation flap that offers a versatile reconstructive option for head and neck defects. Recent anatomical studies have improved our understanding of the vascular supply of the supraclavicular artery island flap. Furthermore, several published large series describe the utility and reliability of this flap. In this article, we review the scientific literature describing the vascular anatomy of the supraclavicular artery island flap, its clinical application, and limitations in reconstructing defects in the head and neck region. Recent findingsThe vascular anatomy and surface markings, optimal flap design, surgical techniques employed to improve reliability, and aesthetic and functional outcomes of the supraclavicular artery island flap in head and neck reconstruction are well documented in the literature. SummaryThe supraclavicular artery island flap offers a versatile and well tolerated option in reconstruction of head and neck defects with several advantages over more traditional regional flaps and distant-free flaps.


Current Opinion in Otolaryngology & Head and Neck Surgery | 2009

Utility of the gastro-omental free flap in head and neck reconstruction.

Rajan S. Patel; Ralph W. Gilbert

Purpose of reviewIn the current era of organ-preservation therapies, surgical salvage and reconstruction of defects following ablation of mucosa and soft tissue in the head and neck is extremely challenging because of the toxic effects of chemoradiation and intensive radiotherapy on wounds. The anatomical, physiological and immunological properties of the gastro-omental flap make it an ideal reconstructive technique in head and neck surgery. Recent findingsSeveral case series published in the past 12 months highlight the utility of this flap in inhospitable wounds and particularly in restoration of circumferential pharyngeal defects. The gastro-omental flap produces satisfactory functional results and morbidity in this group of high-risk patients. SummaryThe gastro-omental free flap provides an alternative to traditional reconstructive techniques that is ideally suited to high-risk complex wounds in the head and neck.


Laryngoscope | 2007

Clinical Outcome After Surgery for 75 Patients With Parotid Sialadenitis

Rajan S. Patel; Tsu‐Hui H. Low; Kan Gao; Christopher J. O'Brien

Objective: To analyze the clinical outcome of patients treated surgically for chronic parotid sialadenitis.

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Kan Gao

Royal Prince Alfred Hospital

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Ralph W. Gilbert

Princess Margaret Cancer Centre

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Rebecca Wyten

Royal Prince Alfred Hospital

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Dale H. Brown

Princess Margaret Cancer Centre

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