Publications by authors named "Tharakan T"

Objective: To describe our experience with chimeric flaps and to assess the surgical outcomes and postoperative complications associated with chimeric flaps compared to multiple flaps.

Study Design/methods: Patients undergoing chimeric and multiple simultaneous free tissue transfer between June 2016 and October 2023 were retrospectively reviewed. The primary outcome of interest was the complication rate.

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Objective: To share a single institutional experience with clinical research on COVID-related olfactory dysfunction (OD).

Data Source/method: Narrative review of published original data and ongoing clinical trials on COVID-related OD at Washington University from 2020 to 2023.

Results: There were three new diagnostic-/patient-reported outcome measures developed and tested.

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Article Synopsis
  • The study investigates whether using testicular sperm for ICSI is more effective than using ejaculated sperm in men with high sperm DNA fragmentation (SDF).
  • Research included nine studies with over 536 participants, revealing that pregnancy and live birth rates were significantly higher with testicular sperm, while fertilisation and miscarriage rates showed no significant differences.
  • The findings suggest potential benefits of testicular sperm, but the quality of evidence is limited, necessitating more rigorous research to confirm these results before changing clinical practices.
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Context: Recommendations regarding the management of penile size abnormalities and dysmorphophobia are important in guiding evidence-based clinical practice.

Objective: To present a summary of the 2023 European Association of Urology sexual and reproductive health evidence-based recommendations for the management of penile size abnormalities and dysmorphophobia.

Evidence Acquisition: A broad and comprehensive scoping exercise covering all areas of the guidelines was performed.

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Objectives: To compare taste changes after transoral robotic surgery (TORS) to taste changes in healthy controls.

Methods: Oropharyngeal cancer patients receiving TORS and healthy controls were recruited. Participants underwent posterolateral and whole-mouth psychophysical taste testing (identification, intensity, and hedonics) at baseline and at 2 weeks postoperatively (patients) or follow-up (controls).

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Objective: To explore whether deintensification of adjuvant therapy reduces ototoxicity among patients with human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC).

Study Design: Retrospective cohort study.

Setting: Single academic center.

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Infertility affects 15% of couples worldwide and in approximately 50% of cases the cause is secondary to an abnormality of the sperm. However, treatment options for male infertility are limited and empirical use of hormone stimulation has been utilised. We review the contemporary data regarding the application of hormone stimulation to treat male infertility.

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Objectives: To describe the experience of two tertiary academic centers with multiple, simultaneous free flaps for complex head and neck defect reconstruction.

Methods: Patients undergoing multiple, simultaneous free flaps from 2017 to 2022 were retrospectively reviewed.

Results: Seventy-one patients (64.

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Surgical treatments for ischemic priapism (IP) include shunts or penile implants. Non-ischemic priapism (NIP) is usually the result of penile/perineal trauma causing an arterial fistula and embolisation may be required. We conducted a systematic review on behalf of the EAU Sexual and Reproductive health Guidelines panel to analyse the available evidence on efficacy and safety of surgical modalities for IP and NIP.

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Conservative and medical treatments are considered the first step in ischemic priapism (IP) management, although there is no clear evidence regarding their efficacy. We conducted a systematic review on behalf of the EAU Guidelines panel on Sexual and Reproductive health to analyse the available evidence on the efficacy and safety of conservative and medical treatment for non-sickle cell disease-related IP. Databases searched for relevant literature investigating efficacy and safety of conservative measures and medical treatment for IP included Medline, EMBASE, Cochrane Libraries and clinicaltrial.

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Male hypogonadism is associated with reduced quality of life and the development of co-morbidities including obesity, diabetes mellitus, and dyslipidaemia. The mainstay of treatment for male hypogonadism is testosterone replacement therapy (TRT). However, TRT has recognised side effects including impaired spermatogenesis and there are concerns regarding its use in men with concurrent cardiovascular disease.

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Article Synopsis
  • The increased use of scrotal ultrasonography (SUS) helps in detecting uncertain testicular masses, potentially preventing unnecessary surgeries like radical orchidectomy by identifying their characteristics.
  • A systematic review of 32 studies with 1,692 masses aimed to classify benign and malignant testicular masses based on SUS and MRI features, using histopathology as a reference.
  • Findings indicate that certain SUS characteristics, such as size and echogenicity, can significantly predict malignancy in post-pubertal males, while data on pre-pubertal cases remains limited.
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Sickle cell disease (SCD) is an inherited hemoglobin disorder characterized by the occlusion of small blood vessels by sickle-shaped red blood cells. SCD is associated with a number of complications, including ischemic priapism. While SCD accounts for at least one-third of all priapism cases, no definitive treatment strategy has been established to specifically treat patients with SC priapism.

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Diabetes is a rising global health concern and an increasingly common cause of male infertility. Although the definitive pathophysiological mechanisms underpinning the association between diabetes and infertility is unclear, there are several animal studies showing diabetes to be a detrimental factor on reproductive health through apoptosis, oxidative stress and impairment of steroidogenesis. Furthermore, as reflected in animal models, antidiabetic strategies and relevant treatments are beneficial in the management of infertile men with diabetes as the recovery of euglycemic status affects positively the spermatogenesis.

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Introduction: Erectile dysfunction is associated with diabetes mellitus with an estimated prevalence of 52.5% in the diabetic population. The first-line therapy for erectile dysfunction is phosphodiesterase type 5 inhibitors, but data suggest that diabetic men may be less responsive than non-diabetic men.

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Use of testosterone replacement therapy (TRT) and anabolic-androgenic steroids (AAS) has increased over the last 20 years, coinciding with an increase in men presenting with infertility and hypogonadism. Both agents have a detrimental effect on spermatogenesis and pose a clinical challenge in the setting of hypogonadism and infertility. Adding to this challenge is the paucity of data describing recovery of spermatogenesis on stopping such agents.

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Objective: To determine the efficacy of balloon sinus dilation (BSD) compared to functional endoscopic sinus surgery (FESS) or medical management for chronic rhinosinusitis (CRS).

Methods: A qualified medical librarian conducted a literature search for relevant publications that evaluate efficacy of BSD. Studies were assessed independently by 2 reviewers for inclusion in the systematic review and meta-analysis.

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Article Synopsis
  • Hormonal therapy's role in improving sperm retrieval success rates for men with non-obstructive azoospermia (NOA) is debated, especially since standard guidelines do not recommend its use but many patients still try it before surgical retrieval.
  • A systematic review and meta-analysis aimed to compare sperm retrieval rates in men with NOA receiving hormonal therapy versus those who did not, while also examining differences based on hormone levels.
  • Findings from 22 studies indicated that hormonal therapy significantly increased sperm retrieval rates, with an odds ratio of 1.96, suggesting it can be beneficial when used prior to surgical sperm extraction.
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Prostate cancer is one of the most frequently diagnosed malignancies in men worldwide and the life expectancy for men with prostate cancer is improving due to advancements in diagnostics and treatment. Male hypogonadism is associated with obesity, diabetes, and other comorbidities and also has been linked with increasing age; the primary therapy modality for this condition is testosterone replacement therapy (TRT). There are concerns that testosterone therapy may cause prostate cancer disease progression.

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Article Synopsis
  • An imbalance in the genitourinary microbiome is linked to male infertility, with a study showing that 43% of men had identifiable microorganisms.
  • Enterococcus faecalis was the most common organism in semen, while Ureaplasma spp. and Gardnerella vaginalis were more frequent in urine.
  • While semen parameters remained stable, men with microorganisms experienced higher oxidative stress and significant sperm DNA fragmentation, underscoring the importance of screening for genitourinary infections in infertility assessments.
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The COVID-19 pandemic, caused by the SARS-CoV-2 coronavirus, has taken a catastrophic toll on society, health-care systems and the economy. Notably, COVID-19 has been shown to be associated with a higher mortality rate in men than in women. This disparity is likely to be a consequence of a failure to invest in men's health, as it has also been established that men have a lower life expectancy and poorer outcomes from non-communicable diseases than women.

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Penile prosthesis surgery represents the end-stage treatment for erectile dysfunction. It is conventionally used only in cases of erectile dysfunction refractory to pharmacological treatments or vacuum constriction devices. Contemporary literature suggests that penile prothesis surgery is associated with a high satisfaction rate and a low complication profile.

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Context: The European Association of Urology (EAU) has updated its guidelines on sexual and reproductive health for 2021.

Objective: To present a summary of the 2021 version of the EAU guidelines on sexual and reproductive health, including advances and areas of controversy in male infertility.

Evidence Acquisition: The panel performed a comprehensive literature review of novel data up to January 2021.

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Context: The present summary of the European Association of Urology (EAU) guidelines is based on the latest guidelines on male sexual health published in March 2021, with a last comprehensive update in January 2021.

Objective: To present a summary of the 2021 version of the EAU guidelines on sexual and reproductive health.

Evidence Acquisition: A literature review was performed up to January 2021.

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Infertility affects 1 in 6 couples, and male factor infertility has been implicated as a cause in 50% of cases. Azoospermia is defined as the absence of spermatozoa in the ejaculate and is considered the most extreme form of male factor infertility. Historically, these men were considered sterile but, with the advent of testicular sperm extraction and assisted reproductive technologies, men with azoospermia are able to biologically father their own children.

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