Navigation Links
Limiting blood flow interruption during kidney surgery avoids chronic kidney disease
Date:6/11/2010

ROCHESTER, Minn. -- Interrupting the blood flow for more than 20 to 25 minutes during kidney cancer (http://www.mayoclinic.org/kidney-cancer/research.html) surgery leads to a greater risk for patients developing chronic kidney disease, a Mayo Clinic and Cleveland Clinic collaborative research team has found. The study was published today in the journal, European Urology.

For the retrospective study, researchers analyzed outcomes of 362 patients with only one kidney who underwent surgery for renal cortical tumors at Mayo Clinic and Cleveland Clinic between 1990 and 2008. Using a technique called warm ischemia, surgeons kept the patient's kidneys at body temperature during the partial nephrectomy. Ischemia involves cutting off the blood supply to the kidney with clamps in order to control bleeding and to keep blood from obscuring the surgeon's view of the kidney. It also allows for precise closure of the urine collecting system and the surgical opening. The median ischemia time was 21 minutes in the study and the median age of patients was 62 years.

Ischemia can cause tissue damage from a lack of oxygen and nutrients. Researchers found that each additional minute of warm ischemia is associated with a 5 to 6 percent increase in the odds of developing acute renal failure or reduced kidney functioning and is associated with a 6 percent increased risk of new onset Stage IV chronic kidney disease during long-term follow-up.

"This is the largest evaluation of warm ischemia time in patients with a single kidney who are undergoing a partial nephrectomy, combining the experiences of the Mayo Clinic and Cleveland Clinic, both leaders in the field of kidney cancer," says R. Houston Thompson, M.D., (http://www.mayoclinic.org/bio/13623818.html) Mayo Clinic urologist and the study's primary investigator. "These results suggest that every minute counts when the renal arteries and veins are clamped. When planning for the surgery, surgeons should make efforts to minimize ischemia time, especially in situations where a person only has one kidney."

"Historically, 30 minutes was considered the maximum safe duration of warm ischemia during partial nephrectomy, and other retrospective clinical studies have suggested that warm ischemia for 40 to 55 minutes is safe," says Dr. Thompson. "However, these studies included patients with two kidneys, which could mask the true effects of ischemia on renal function.

"Because each additional minute of warm ischemia invites the risk for chronic kidney problems, if longer ischemic times are unavoidable, techniques such as ice slush (cold ischemia) should be considered."

The researchers stress that the study's results do not have implications for patients treated with cold ischemia.


'/>"/>

Contact: Amy Tieder
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Drug that restricts blood supply to prostate tumors delays disease progression
2. ASCO data show serum DNA blood tests detect cancers with high sensitivity and specificity
3. Glucose Tattoo Could Track Blood Sugar Levels for Diabetics
4. DUI Phoenix Attorney Earns Not Guilty Verdict and Hung Jury in .104 Blood Alcohol Content DUI Case
5. First paper dipstick test for determining blood type
6. Nottingham research leads to blood test for early detection of cancer
7. Blood flows differently through the brains of schizophrenic patients
8. Report Finds Control of High Blood Pressure Improving
9. Frequent Doctor Visits Help Diabetics Control Blood Pressure
10. Fewer Sugary Drinks, Less High Blood Pressure
11. A new cancer vaccine starves tumors of blood
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2016)... ... February 05, 2016 , ... ... the company's lighter, sleeker next generation LYNX VR Indoor Trainer with multi-rider capability ... in design and manufacturing not only reduce the weight of the unit, they ...
(Date:2/5/2016)... ... 05, 2016 , ... Francisco Canales, MD and Heather Furnas, ... Valley office. The technique utilizes the body’s own healing abilities to quickly rejuvenate ... are part of only a select few cosmetic surgeons bringing this procedure to ...
(Date:2/5/2016)... ... February 05, 2016 , ... US Sports Camps , official operators of ... direct high-performance kids yoga training. ChildLight Yoga Studio is centrally situated in the picturesque ... , ChildLight Yoga Studio founder Lisa Flynn expresses her excitement, “We are thrilled to ...
(Date:2/5/2016)... ... February 05, 2016 , ... Boar’s Head Brand®, one of ... for this weekend’s Big Game. Take the stress out of your party preparation – ... guests happy at every stage of the game. , “The key to hosting a ...
(Date:2/5/2016)... ... 05, 2016 , ... Dr. Ben Amini, a San ... welcoming orthodontist, Dr. Amanda Cheng, to the practice. With the addition of services ... including general dentistry, cosmetic treatments, periodontics, implant dentistry , endodontics, orthodontics and ...
Breaking Medicine News(10 mins):
(Date:2/5/2016)...  Aralez Pharmaceuticals Inc. ("Aralez") today announced the completion ... Pharmaceuticals Canada Inc. ("Tribute") following approval of the transaction ... combined company will operate under Aralez Pharmaceuticals Inc. ("Aralez"), ... Canada , Ireland ... the terms of the Agreement and Plan of Merger ...
(Date:2/5/2016)... York , February 5, 2016 ... Transparency Market Research report states that the global active ... 2014 and is predicted to reach US$185.9 bn by ... of 6.50% from 2014 to 2020. The title of ... Chemical/Biological, Captive/Contract Manufactured, by Geography, and by Therapeutic Area) ...
(Date:2/5/2016)... 2016  Henry Schein, Inc. (NASDAQ: HSIC ), the ... to office-based dental, animal health and medical practitioners, announced ... acquire a majority ownership interest in Dental Cremer S.A., ... Brazil . --> ... is the dental distribution business of Cremer S.A. With ...
Breaking Medicine Technology: