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This Concept Map has information related to: BPH, Electrovaporization Balloon dilation of urethra and use or prostatic stents to maintain urethral patency, Regular ejaculation to help relieve prostatic congestion Alpha blockers: improve urine flow rates to relieve bladder outlet obstruction by preventing contractions of prostatic capsule and bladder neck, As obstruction increases it causes: frequent urination with nocturia, Laser excision to relieve prostatic enlargement Nerve-sparing surgical techniques to reduce common complications such as erectile dysfunction, Suprapubic (transvesical) resection Retropubic resection, As obstruction increases it causes: Urinary stasis, Nerve-sparing surgical techniques to reduce common complications such as erectile dysfunction Prostatectomy, Difficulty starting micturition results in interrupted stream, Alpha blockers: improve urine flow rates to relieve bladder outlet obstruction by preventing contractions of prostatic capsule and bladder neck finasteride to possibly reduce size of prostae, Gradual dilation of ureters (hydroureter) and kidneys (hydronephrosis) Increase in sympathetic stimulation of smooth muscle of prostatic urethra and bladder neck