Navigation Links
96 percent of vasectomy patients cleared without need for multiple semen samples
Date:6/8/2010

Having to provide repeated semen samples following a vasectomy could soon be a thing of the past, after 96 per cent of men were given the all-clear based on a single test three months after surgery.

Research from The Netherlands, published in the June issue of the urology journal BJUI, showed that 51 per cent of the 1,073 samples contained no sperm and a further 45 per cent contained less than 100,000 immotile sperm. No paternity was reported in the cleared group after a follow-up of at least a year.

"Vasectomy is a minimally invasive surgical procedure that provides a widespread, reliable and relatively easy method of birth control" says co-author Dr Herman van Roijen from the Department of Urology at St Elisabeth Hospital, Tilburg, The Netherlands.

"One of the major drawbacks is that a considerable number of men still have a few immotile sperm in their semen for a year or more. Conventional guidelines have stated that clearance can only be given to men who provide one or two sperm-free samples. The fear of legal action if pregnancy does occur has led to very conservative vasectomy protocols.

"However, our study based on guidelines issued by the Dutch Urological Association shows that one semen test is adequate to provide clearance in the vast majority of cases."

A two-step process was developed by the research team to analyse the semen samples.

  • The first step was wet slide analysis of the semen samples in a deep chamber to provide a relatively reliable indication of sperm numbers and motility. This showed that 51.2 per cent of the samples were sperm free and 41.5 per cent contained less than 50 immotile sperm, giving an initial clearance rate of 92.7 per cent.

  • The remaining 7.3 per cent were then tested using a Neubauer Haemocytometer, according to guidelines issued by the World Health Organization. This resulted in a further 3.3 per cent being cleared and four per cent being declared potentially fertile.

A total of 481 men (44.7 per cent) received clearance with residual immotile sperm still present in their semen. After a follow-up of at least one year, no pregnancies had been reported.

"Our study clearly shows that three months after vasectomy about half of our patients were still producing sperm, albeit immotile and in very small numbers" says Dr van Roijen. "In fact, we found even higher percentages than previous studies.

"However, our study also showed that these residual sperm are of no clinical consequence."

The authors conclude that the era of repeated visits to a clinic to deliver yet another semen sample many months after a vasectomy may now be over.

"If the guidelines now being employed in The Netherlands were adopted elsewhere, it could dramatically increase the number of men who could be cleared three months after a vasectomy, having provided just one semen sample" says Dr van Roijen.


'/>"/>

Contact: Annette Whibley
wizard.media@virgin.net
Wiley-Blackwell
Source:Eurekalert

Related medicine news :

1. HIRC Research Alert: Health Plans Expected to Increase Adoption of Percent Copays to Manage Specialty Medications
2. Only 5 percent of cancer research funds are spent on metastases, yet it kills 90 percent of all cancer patients
3. Scientific Study Reveals that 79 Percent of Electronic Cigarette Users Have Stopped or Reduced Their Tobacco Use
4. Suntricity Power Stations Report Nearly 100% Percent Uptime Suntricity Power Stations using AC power more reliable than standard sun powered solar systems
5. More than 60 percent of teachers have voice problems
6. Salesforce.com Users Increase Sales and Marketing Communications 320 Percent
7. Medicare 21 percent physician payment cut to go into effect April 15
8. 90 percent of children with intermittent exotropia will become nearsighted by 20 years of age
9. Preterm birth rate drops 3 percent
10. New Research Shows 'Kangaroo Mother Care' Reduces Newborn Deaths More than 50 Percent
11. Infant Head Bed Celebrates Launch of New Web Site and Packaging by Offering 20 Percent Discount on Plagiocephaly Prevention Pillow
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... 2017 , ... As health professionals work to improve their approach to healthcare, ... doing more than filling out a survey; in many cases health professionals and patients ... health care and research on the importance of active engagement with patients and members ...
(Date:10/13/2017)... , ... October 13, 2017 ... ... of Pharmacy (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ... on guideline updates for the primary prevention of cardiovascular diseases during the ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Ellevate Network, the ... business to advocate for action towards gender equality at their inaugural Summit in New ... the globe, and reached a social audience of over 3 million. To watch the ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a missionary ... Journey: From the Mountains to the Mission Field” is the creation of published author, ... ages and currently teaches a class of ladies at her church, which she has ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... to meet the demand of today’s consumer and regulatory authorities worldwide. From Children’s ... experts and tested to meet the highest standard. , These products are ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Labs announces the European launch of their new low volume, high ... in Cambridge, U.K on October 4th. The ... with unprecedented speed and sensitivity while using far less sample volume ... ... ...
(Date:9/27/2017)... , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: DRIO), a leading global ... that its MyDario product is expected to appear on The Dr. Oz ... Dr. Oz Show airs in your area: http://www.doctoroz.com/page/where-watch-dr-oz-show ... The nine-time Emmy award-winning, The Dr. Oz Show kicked ... The segment features ...
(Date:9/22/2017)... SAN DIEGO , Sept. 22, 2017 ... ll medical device is now successfully helping those with ... Union. Fibromyalgia diagnosed Amanda in ... getting dressed and washing my hair, experiencing no sleep ... body in painful spasm… I cannot recommend [the AVACEN ...
Breaking Medicine Technology: