Maximilian Pallauf

56667781200

Publications - 3

Real-Time Dosimetry in Endourology: Tracking Staff Radiation Risks

Publication Name: Diagnostics

Publication Date: 2024-08-01

Volume: 14

Issue: 16

Page Range: Unknown

Description:

Background: To retrospectively investigate scatter radiation (SCR) exposure among staff in the endourology operating theatre. Methods: During surgeries under fluoroscopic guidance, five professional groups (urological surgeon [US], surgical nurse [SN], assistant surgical nurse [ASN], anaesthetist [A], and anaesthesia care [AC]) wore real-time dosimeters (Philips DoseAware System) on their head and chest over lead aprons between July 2023 and February 2024. The SCR data were analysed and correlated with procedural and patient factors. Results: In total, 249 procedures were performed, including 86 retrograde intrarenal surgeries and 10 percutaneous nephrolithotomies. Median SCR exposure was 38.81, 17.20, 7.71, 11.58, 0.63, 0.23, 0.12, and 0.15 Microsievert (µSv) for US chest (USC), US head (USH), SN chest (SNC), SN head (SNH), A chest (AC), AC chest (ACC), ASN chest (ASNC), and ASN head (ASNH), respectively. There was a significant correlation between DAP and SCR doses detected by USC, USH, SNC, SNH, AC, and ACC dosimeters (p < 0.05). The median chest-to-eye conversion factor (CECF) was 2.11 for the US and 0.71 for the SN. Conclusions: This study, using real-time dosimetry, is among the first to assess staff occupational SCR exposure in endourology. It highlights a substantial SCR exposure, indicating an occupational health hazard that warrants further investigation.

Open Access: Yes

DOI: 10.3390/diagnostics14161763

Functional Outcome and Safety of Endoscopic Treatment Options for Benign Prostatic Obstruction (BPO) in Patients ≥ 75 Years of Age

Publication Name: Journal of Clinical Medicine

Publication Date: 2024-03-01

Volume: 13

Issue: 6

Page Range: Unknown

Description:

Background: The selection of suitable patients for the surgical treatment of benign prostatic obstruction (BPO) is a challenge in persons ≥75 years of age. Methods: After a systematic literature search of PubMed, 22 articles were included in this review. Clinical and functional parameters were evaluated statistically. Results: The mean age of the patients was ≥79 years. The mean duration of postoperative catheterization ranged between 2 (d) (ThuLEP, thulium laser enucleation of the prostate) and 4.4 days (TURP, transurethral resection of the prostate). Complication rates ranged between 6% (HoLAP, holmium laser ablation of the prostate) and 34% (PVP, photoselective vaporization of the prostate); the maximum rate of severe complications was 4% (TURP). The mean postoperative maximal urinary flow (Qmax) in mL/sec. ranged between 12.9 mL/sec. (HoLAP) and 19.8 mL/sec (Hol-TUIP, holmium laser transurethral incision of the prostate). The mean quality of life (QoL) score fell from 4.7 ± 0.9 to 1.8 ± 0.7 (HoLEP), from 4.1 ± 0.4 to 1.9 ± 0.8 (PVP), from 5.1 ± 0.2 to 2.1 ± 0.2 (TURP), and from 4 to 1 (ThuVEP, thulium laser vapoenucleation of the prostate). Pearson’s correlation coefficient (r) revealed a positive linear correlation between age and inferior functional outcome (higher postoperative International Prostate Symptom Score (IPSS) [r = 0.4175]), higher overall complication rates (r = 0.5432), and blood transfusions (r = 0.4474) across all surgical techniques. Conclusions: This meta-analysis provides the summary estimates for perioperative and postoperative functional outcome and safety of endoscopic treatment options for BPO in patients ≥ 75 years of age. Of particular importance is that all surgical techniques significantly improve the postoperative quality of life of patients in this age group compared to their preoperative quality of life.

Open Access: Yes

DOI: 10.3390/jcm13061561

Recurrent Testicular Torsion After Prior Surgical Fixation: A Two-Case Series and Technical Insight into Orchidopexy Failure

Publication Name: Journal of Clinical Medicine

Publication Date: 2026-07-01

Volume: 15

Issue: 13

Page Range: Unknown

Description:

Background: Testicular torsion is a urological emergency that requires prompt diagnosis and surgical intervention to preserve testicular viability. Bilateral orchidopexy is widely regarded as the definitive treatment for the prevention of recurrence. Cases: We report two rare cases of recurrent testicular torsion despite prior surgical fixation. Both patients had previously undergone orchidopexy and presented with acute scrotal pain. Surgical exploration confirmed torsion in both cases, despite macroscopically intact fixation sutures. Intraoperative findings suggested that recurrence resulted from insufficient restriction of mobility rather than suture failure. Revision orchidopexy with modified multi-point fixation was performed, resulting in successful detorsion and the preservation of testicular perfusion. Results: These cases highlight that orchidopexy does not universally prevent recurrent torsion and emphasize the critical importance of surgical technique, including suture placement, orientation, and number of fixation points. Increased awareness of potential re-torsion is essential, even in previously pexied patients. Improved standardization of fixation techniques may help reduce the risk of recurrence.

Open Access: Yes

DOI: 10.3390/jcm15135231