Publications by authors named "Ioannis Kartalas Goumas"

Article Synopsis
  • The review aimed to evaluate the effects of pulse modulation technology on laser lithotripsy and prostate enucleation in endourology, focusing on efficiency, safety, and tissue interaction.
  • A systematic search of studies from the last 20 years identified 29 articles that examined these technologies, with preclinical studies showing promise in stone fragmentation but mixed results in clinical settings.
  • While pulse modulation can improve operational efficiency and reduce thermal safety risks, its benefits for prostate surgery outcomes remain inconsistent, yielding comparable rates to standard modalities in terms of stone-free status and complications.
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Background And Objective: The widespread adoption and rapid integration of new technologies and techniques in endoscopic and laser bladder interventions, particularly endoscopic enucleation, have led to new types of bladder injuries. This underscores the need for an intraoperative injury classification system. This study aims to develop and validate the Bladder Injury Classification System for Endoscopic Procedures (BICEP), which standardizes the classification of complications and intervention requirements.

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Purpose: We aim to report here the first clinical series of patients treated with AEEP using a novel hybrid thulium:yttrium-aluminium-garnet (Tm:YAG) laser generator (RevoLix HTL, LISA Laser Products, Germany), i.e. capable of emitting both in pulsated and continuous-wave.

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Purpose: To examine temporal-spatial distribution of heat generated upon laser activation in a bench model of renal calyx. To establish reference values for a safety distance between the laser fiber and healthy tissue during laser lithotripsy.

Methods: We developed an in-vitro experimental setup employing a glass pipette and laser activation under various intra-operative parameters, such as power and presence of irrigation.

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Purpose: To identify laser settings and limits applied by experts during laser vaporization (vapBT) and laser en-bloc resection of bladder tumors (ERBT) and to identify preventive measures to reduce complications.

Methods: After a focused literature search to identify relevant questions, we conducted a survey (57 questions) which was sent to laser experts. The expert selection was based on clinical experience and scientific contribution.

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Article Synopsis
  • The study aims to gather laser lithotripsy settings from experts for different clinical situations and to identify ways to minimize complications.
  • A survey was conducted among laser specialists, revealing that the majority use Holmium-YAG lasers, with variations in settings for specific scenarios like middle-ureteral, pelvic, and lower pole stones.
  • Experts reported a general consensus on preferred techniques, with preventive measures like power limits and intermittent activation commonly employed to reduce thermal injury risks during procedures.
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Purpose: To highlight and compare experts' laser settings during endoscopic laser treatment of upper tract urothelial carcinoma (UTUC), to identify measures to reduce complications, and to propose guidance for endourologists.

Methods: Following a focused literature search to identify relevant questions, a survey was sent to laser experts. We asked participants for typical settings during specific scenarios (ureteroscopy (URS), retrograde intrarenal surgery (RIRS), and percutaneous treatment).

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Introduction: Several preclinical studies about a novel pulsed-thulium:yttrium-aluminum-garnet (p-Tm:YAG) device have been published, demonstrating its possible clinical relevance.

Methods: We systematically reviewed the reality and expectations for this new p-Tm:YAG technology. A PubMed, Scopus and Embase search were performed.

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Purpose: To identify expert laser settings for BPH treatment and evaluate the application of preventive measures to reduce complications.

Methods: A survey was conducted after narrative literature research to identify relevant questions regarding laser use for BPH treatment (59 questions). Experts were asked for laser settings during specific clinical scenarios.

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Introduction: The management of urolithiasis ectopic pelvic kidneys (EPK) can be challenging because of the aberrant anatomy (1-4). We demonstrate the step-by-step technique of the laparoscopic approach for treating urolithiasis in EPK.

Patients And Methods: Three men with EPK (2 left, 1 right) underwent laparoscopic pyelolithotomy through a transperitoneal approach.

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Introduction And Objectives: The use of ureteral access sheaths (UAS) limits the irrigation-induced increase in intrarenal pressure during ureteroscopy (URS). We investigated the relationship between UAS and rates of postoperative infectious complications in stone patients treated with URS.

Materials And Methods: Data from 369 stone patients treated with URS from September 2016 to December 2021 at a single institution were analyzed.

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Objective: To assess the impact of a Virtual Reality Device (VRD, HypnoVR, Strasbourg, France) on patient-reported pain and anxiety during extracorporeal shockwave lithotripsy (ESWL).

Materials And Methods: We enrolled 30 patients submitted to ESWL for urinary stones. Patients with either epilepsy or migraine were excluded.

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Objective: To analyze the pattern of speaker activity related to both flexible ureteroscopy (fURS) and percutaneous nephrolithotomy (PCNL) during plenary sessions at the main (endo)urological international meetings over the last 10 years.

Methods: We reviewed the meeting programs of the main endourological international meetings (EAU, AUA, WCE, and SIU) during 2011-2019. We detected all invited speakers at plenary sessions regarding fURS or PCNL.

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Purpose Of Review: Moses effect is an inherent physical principle of Ho:YAG laser functioning. Moses Technology is a pulse modulation modality of Ho:YAG laser, which became commercially available for the treatment of two urological conditions: urinary stones and benign prostatic obstruction. The purpose of this narrative review is to distinguish between Moses effect and Moses Technology, as well as to summarize the latest evidence on Moses Technology and its main application in the urological field.

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Over the last four decades, extracorporeal shockwave lithotripsy (ESWL) has been used as an effective technique to treat kidney and ureteral stones. Nowadays, ESWL still plays a role in stone treatment and is a primary treatment option in different guidelines. New technologies are now available to endourologists, but this procedure remains valid.

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Introduction: Most surgical therapies used to date for Peyronie's disease produce good results but cause penis retraction. The authors propose a personal surgical technique that makes use of an intracavernous cylinder, soft but axially rigid in consistency, in association with tunical relaxing incisions and saphenous vein grafting, in this exact sequence.

Methods: Between March 1997 and March 2003, 145 patients presenting with Peyronie's disease underwent this 3-phase personal surgical procedure.

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The surgical therapy of the urethral strictures is still controversial as it interests the choice of an appropriate technique among many methods. In cases of complex urethral strictures, urethroplasties using genital or extragenital tissue for reconstruction are indicated. Scrotal in-lay was popular some years ago, but the complications rate was high.

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