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Prostate Cancer
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Educational content from recorded physician discussions — not medical advice. Always talk to your child's care team about your child's situation.
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Patients should ask their physician about experience (number of patients treated, duration of practice), treatment approach, follow-up plan, expected side effects and their management, and establish a working relationship. Cuts Like a Cyberknife: New Surgical Technique for Prostate Cancer · 2:54
Cuts Like a Cyberknife: New Surgical Technique for Prostate Cancer
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The future is now for prostate cancer treatment. University Hospitals' Dr. Lee Ponsky explains the latest technology for the treatment of prostate cancer using a new non-invasive surgery procedure.
video3:27 · Jul 2026
Experience is probably much less valuable than clinicians believe, and improving patient care requires rising above personal experience expectations through conscious effort. Overcoming cognitive bias in evidence-based surgical practice · 24:36
Overcoming cognitive bias in evidence-based surgical practice
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Evidence-Based Care and Personal Bias: Conflicting Processes
Dan Ostlie, MD
video44:05 · Oct 2026
Eligibility criteria for CyberKnife include PSA less than 10, Gleason score of 3+4 or less, and low to intermediate risk disease — Lee Ponsky, iQuestions: Cyberknife Procedure for Prostate Cancer · 1:22
iQuestions: Cyberknife Procedure for Prostate Cancer
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What is the CyberKnife procedure? How long does it take? Dr. Lee Ponsky, a urologist at University Hospitals, answers these questions and more for ShareWIK.com.
video3:34 · Jul 2026
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iQuestions: Cyberknife Procedure for Prostate Cancer
CyberKnife is a newer technology that allows noninvasive treatment of prostate cancer
clinicalLee Ponsky0:30 ↗
University Hospital's Case Medical Center is one of the initial institutions offering CyberKnife technology
clinicalLee Ponsky0:36 ↗
CyberKnife delivers highly focused radiation directly at the prostate and tracks the movement as the prostate moves
clinicalLee Ponsky0:46 ↗
CyberKnife allows very precise treatment of the prostate while minimizing injury or side effects from surrounding organs
clinicalLee Ponsky0:53 ↗
CyberKnife treatment does not involve chemotherapy or other treatments and is standalone
clinicalLee Ponsky1:01 ↗
CyberKnife is currently being used to treat patients with low risk or intermediate risk prostate cancer
clinicalLee Ponsky1:12 ↗
Eligibility criteria for CyberKnife include PSA less than 10, Gleason score of 3+4 or less, and low to intermediate risk disease
guidelineLee Ponsky1:22 ↗
Standard external beam radiation for prostate cancer can be 5 days a week for 6 to 9 weeks, up to 45 treatments
clinicalLee Ponsky1:53 ↗
CyberKnife treatment consists of 5 treatments total
clinicalLee Ponsky2:06 ↗
Each CyberKnife treatment takes about 1 hour, for a total of 5 hours of treatment
clinicalLee Ponsky2:11 ↗
No prostate cancer treatment has been able to totally remove the possibility of having side effects
clinicalLee Ponsky2:29 ↗
CyberKnife patients have been having about 2 to 3 weeks of either no side effects at all, very mild urinary or rectal side effects, or sometimes bothersome rectal or urinary side effects
clinicalLee Ponsky2:46 ↗
Most side effects from CyberKnife have gone away by 3 to 4 weeks
clinicalLee Ponsky3:00 ↗
Potential side effects of CyberKnife include urinary incontinence and erectile dysfunction
clinicalLee Ponsky3:03 ↗
Urinary incontinence and erectile dysfunction have been found to be very minimal in CyberKnife patients so far
clinicalLee Ponsky3:10 ↗
Cuts Like a Cyberknife: New Surgical Technique for Prostate Cancer
CyberKnife is a newer technology that allows noninvasive treatment of prostate cancer.
clinical0:06 ↗
Treatment planning involves MRI and CT imaging that are fused into a single image, with radiation oncologist and surgeon collaborating to contour the prostate and surrounding structures.
clinical0:12 ↗
Dose planning aims to deliver tumoricidal dose to the prostate while protecting the rectum, bladder, and nerves controlling erections from high doses.
clinical0:33 ↗
The CyberKnife robotic arm moves approximately 360 degrees around the patient, delivering one beam of radiation from hundreds of different locations.
clinical0:51 ↗
Each individual beam is a very low dose, causing minimal side effects or damage to tissue it traverses, but the beams converge at the prostate focal point to destroy cancer.
clinical1:04 ↗
Initial CyberKnife treatment schedule was five consecutive days (Monday through Friday).
clinical1:21 ↗
Initial data on CyberKnife showed that treating patients in five fractions every other day (Monday, Wednesday, Friday, following Monday, Wednesday) may result in slightly fewer side effects than consecutive daily treatment.
clinical1:28 ↗
At this institution, treated patients are monitored with PSA and have shown a nice drop-off in PSA over the years, indicating cancer cure.
clinical1:41 ↗
Monitoring of urinary side effects and erectile dysfunction in this cohort has found very minimal side effects in the majority of patients.
clinical1:56 ↗
The overall cost of CyberKnife treatment is slightly less than some other treatments because of the shorter treatment period.
clinical2:21 ↗
CyberKnife treatment is covered by most insurance companies.
clinical2:40 ↗
Patients are pre-screened to ensure insurance coverage will not be a problem before CyberKnife is offered.
clinical2:46 ↗
Patients should ask their physician about experience (number of patients treated, duration of practice), treatment approach, follow-up plan, expected side effects and their management, and establish a working relationship.
opinion2:54 ↗
Overcoming cognitive bias in evidence-based surgical practice
In 1959, 1.4 million tonsillectomies were performed in the United States for pharyngitis.
epidemiological6:47 ↗
There was never a study that showed tonsillectomy was an effective treatment for pharyngitis.
clinical6:52 ↗
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