Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

80% of vasectomy patients didn’t complete all-clear semen tests

03.04.2006


A quarter of the men who had vasectomies at a clinic didn’t return for any follow up tests to make sure that the procedure had worked, according to research published in the April issue of the British–based urology journal BJU International.



And only a fifth of the 436 men turned up for both of the tests needed to finally put them in the clear, according to a study carried out by researchers at the Cleveland Clinic Glickman Urological Institute in Ohio, USA.

Of the 75 per cent that did attend their first, eight-week test, a quarter provided samples that still contained sperm. 80 of the 83 men were producing nonmotile (present but inactive) sperm, but three were producing motile (present and active) sperm, including one who was eventually diagnosed with a vasectomy failure.


65 of the 80 men producing nonmotile sperm were clear at their 12-week checks, but six months after their procedure eight men were still producing positive sperm samples. By ten months, all but the vasectomy failure were finally in the clear.

“Our results show that only three-quarters of the men in the study turned up for their eight-week sperm test, which means that a quarter of them had no idea whether the procedure had worked and whether their partner could still fall pregnant” says lead author Dr Nivedita Dhar, Chief Resident in Urology at the Clinic.

“It is impossible to assess the true vasectomy failure rate in the full study sample as many failed to turn up for follow-up tests, despite careful counselling.

“But what concerns us most is that a quarter of the men who had vasectomies did not return for any tests, despite us stressing the important of these follow-ups” adds Dr Dhar.
According to the researchers up to 90 per cent of urologists require two semen samples to confirm sterility and up to 95 per cent request further samples if nonmotile sperm are present. Doctors recommend that couples use additional contraception until vasectomy patients receive the all clear.

“The result of the study are consistent with other research which has estimated that non-compliance among vasectomy patients is between 25 and 40 per cent “ says Dr J Stephen Jones, vice chairman of the Glickman Urological Institute, who directed the study.

“It may, however, be possible to improve full compliance among those who return for at least one test by simplifying the follow-up tests in line with current medical evidence and making sure that this is backed up by adequate counselling.

“For example, our study found that 65 of the men tested at eight weeks needed re-testing, but this fell to 15 when it came to the 12-week test. This suggests that a single test at 12 weeks may be adequate in the majority of cases.

“However, it is very important to stress that couples need to use additional contraception until the vasectomy patient has been given the all clear.”

Annette Whibley | alfa
Further information:
http://www.bjui.org

More articles from Health and Medicine:

nachricht Scientists learn more about how gene linked to autism affects brain
19.06.2018 | Cincinnati Children's Hospital Medical Center

nachricht Overdosing on Calcium
19.06.2018 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

Im Focus: Photoexcited graphene puzzle solved

A boost for graphene-based light detectors

Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Carbon nanotube optics provide optical-based quantum cryptography and quantum computing

19.06.2018 | Physics and Astronomy

How to track and trace a protein: Nanosensors monitor intracellular deliveries

19.06.2018 | Life Sciences

New material for splitting water

19.06.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>