Percutaneous sperm retrieval technique: A reliable and effective sperm retrieval procedure for ICSI in patients with obstructive azoospermia.

Objective: To study the reliability and effectiveness of the percutaneous sperm retrieval technique.

Methods: We retrospectively analyzed the records of 123 consecutive patients with obstructive azoospermia who underwent percutaneous sperm retrieval and intracytoplasmic sperm injection (ICSI) using Percutaneous Epididymal Sperm Aspiration (PESA) with or without a rescue Testicular Sperm Aspiration (TESA). We compared patients who had the first sperm retrieval ever and patients who had more than one sperm retrieval performed.

Clinical characteristics of sarcoma patients: a population-based data analysis from a German clinical cancer registry.

Purpose: Sarcomas are a heterogeneous group of malignant neoplasms with a wide range of histological types and occur in almost any anatomic site and side. This study evaluated the prognostic factors in sarcoma patients based on German clinical cancer registry data.

Methods: The German clinical cancer register of Saxony-Anhalt was used for all data analyses.

Karst-bauxite formation during the Great Oxidation Event indicated by dating of authigenic rutile and its thorium content.

Aluminium (Al)-rich palaeosols-i.e., palaeobauxite deposits-should have formed in karst depressions in carbonate sequences as a result of acidic solutions from oxidative weathering of sulfide minerals during the Great Oxidation Event (GOE), but no GOE-related karst-palaeobauxite deposits have so far been recorded.

[Periprosthetic infection after total hip replacement : Risk factors for an early infection after primary implantation].

Background: Periprosthetic infection is one of the most serious complications in primary arthroplasty. The infection rates reported in the current literature range from 0.36 to 2.

Correction to: The High Flex Total Knee Arthroplasty-Higher Incidence of Aseptic Loosening and No Benefit in Comparison to Conventional Total Knee Arthroplasty: Minimum 16-Years Follow-Up Results.

[This corrects the article DOI: 10.1007/s43465-020-00276-3.].