Dr. Jack Grinnan

Dr. Jack Grinnan
Dr. Grinnan specializes in urologic conditions including overactive bladder, enlarged prostate/BPH, vasectomy, erectile dysfunction, as well as bladder cancer. His clinical interests also include a variety of urologic surgical techniques and procedures such as endoscopic and percutaneous kidney stone surgery, robotic nerve-sparing radical prostatectomy, and robotic and laparoscopic kidney surgery. Dr. Grinnan’s work has been published in numerous publications and posters including: Grinnan, J, Bieniek, J, Honig, S. 2018. Direct application therapy. Book Chapter in Encyclopedia of Reproduction, 2nd Edition. Grinnan J, Staff I, Tortora J, McLaughlin T, Valente S, Wagner J, Kesler S. Hartford Hospital, Hartford, CT. University of Connecticut Health Center, Farmington, CT. Effect of Biopsy Orientation on Prostate Cancer Detection Rates Using a Modified MRI-Fusion Biopsy Template. Abstract written for presentation at New England American Urologic Association Annual Meeting 2018. Garonzik-Wang J, Priyanka G, Grinnan J, Segev D, et al. 2012. Frailty and Delayed Graft Function in Kidney Transplant Recipients. Arch Surg. 2012; 147(2):190-193. Marquez de la Plata C, Garces J, Kolori E, Grinnan J, Diaz-Arrastia R, et al. 2011. Deficits in the Functional Connectivity of Hippocampal and Frontal Lobe Circuits After Traumatic Brain Injury. Arch Neurol. 2011; 68(1):74-84.
Medical School:

University of Texas Health Science Center


University of Connecticut


University of Texas

All surgical treatments have inherent and associated side effects. Individual’s outcomes may depend on a number of factors, including but not limited to patient characteristics, disease characteristics and/or surgeon experience. The most common side effects are mild and transient and may include mild pain or difficulty when urinating, discomfort in the pelvis, blood in the urine, inability to empty the bladder or a frequent and/or urgent need to urinate, and bladder or urinary tract infection. Other risks include ejaculatory dysfunction and a low risk of injury to the urethra or rectum where the devices gain access to the body for treatment. Further, there may be other risks as in other urological surgery, such as anesthesia risk or the risk of infection, including the potential transmission of blood borne pathogens. For more information about potential side effects and risks associated with Aquablation therapy for Benign Prostatic Hyperplasia (BPH) treatment, speak with your urologist or surgeon. Prior to using our products, please review the Instructions for Use, Operator’s Manual or User Manual, as applicable, and any accompanying documentation for a complete listing of indications, contraindications, warnings, precautions and potential adverse events. No claim is made that the AquaBeam Robotic System will cure any medical condition, or entirely eliminate the diseased entity. Repeated treatment or alternative therapies may sometimes be required.

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