Fertilitätsstörungen des Mannes — Diagnostik und Therapie

Schill, Wolf‐Bernhard

doi:10.1007/978-3-662-07633-0_10

Cited by 6 publications

(5 citation statements)

References 64 publications

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“…In case reports or small retrospective series of patients, several authors (MacLeod, 1951; Kar, 1953; French et al. , 1973; Koentjoro‐Soehadi, 1982; Sheriff, 1987; Schill, 1994; Evenson et al. , 2000; Jung et al.…”

Section: Lifestylementioning

confidence: 99%

Influence of genital heat stress on semen quality in humans

2007

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The concept that an elevation of testicular temperature results in impairment of spermatogenesis is widely accepted. Here, current knowledge concerning genital heat stress and its consequences in men is reviewed. Duration of sitting during work positively correlates with daytime scrotal temperatures and daytime scrotal temperature negatively correlates with semen quality. However, the assumed negative correlation between duration of sitting and semen quality could not be shown in the available studies. Fertility parameters of professional drivers with long periods of sitting in vehicles were impaired; however, for predominantly affected drivers of vans, trucks or industrial heavy machinery potential confounders have to be considered. Wearing tight fitting compared with loose-fitting underwear is associated with significantly higher scrotal temperatures. However, available observations suggesting a link between tight-fitting underwear or trousers and impaired semen quality are not convincing. Studies addressing professional exposure to high temperatures delivered conflicting results concerning fertility parameters. The postulated negative impact of sauna visits on semen quality is not sufficiently underlined by the available studies. Oligozoospermic men with a varicocele have significantly higher scrotal temperatures than normozoospermic men, and according to several studies varicocelectomy normalises scrotal temperatures. A further link has been reported between fever and deteriorated semen quality. Contraception via genital heat stress has been demonstrated using hot sitting baths or insulating suspensors. However, down-regulation of spermatogenesis is inconsistent and unsafe. On the other hand, scrotal and consecutively testicular cooling is able to improve semen quality.

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Section: Lifestylementioning

confidence: 99%

Influence of genital heat stress on semen quality in humans

2007

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“…In einer weiteren Studie exponierten sich 8 [55], Pocken [22] und Influenza [8], bakterielle Erkrankungen wie Typhus [22,24] und Lepra [58] die Malaria [22] und das familliäre Mittelmeerfieber [11] eine passagere Verschlechterung der Ejakulatqualität bis hin zur vorübergehenden Azoospermie gezeigt werden.…”

Section: Massive Testikuläre Wärmezufuhrunclassified

Die Samenqualität des Mannes nach testikulärer überwärmung

Jung

Schuppe

Schill

2003

Reproduktionsmedizin

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“…Da Viruslast und -verteilung im Ejakulat nicht konstant sind (Anderson 1992), gibt auch das negative Ergebnis einer früheren Testaufbereitung keine Gewähr für eine komplette Viruselimination in der aktuellen Probe. Sofern vor Ort kein hochsensitives Testsystem verfügbar ist, macht die Zeitdauer bis zum Vorliegen des Ergebnisses in der Regel eine Tiefgefrierkonservierung und Lagerung der Probe erforderlich, auch wenn damit ein Motilitätsverlust von bis zu 30 % verbunden sein kann (Schill 1994). Die Schwangerschaftsraten sind insbesondere von den Spermiogrammparametern abhängig und liegen nach IUI getesteter, kryokonservierter Spermien um etwa 10±15 % je Behandlungszyklus.…”

Section: Optionen Der Reproduktionsmedizinunclassified