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Photoselective Vaporisation of the Prostate (PVP)
uses a powerful, green laser to vaporise the prostate and hence
produce a reduction in prostate size like the TURP. The green light
is selectively absorbed by the red prostate tissue hence “photoselective”.
The laser is delivered through a fibre passed down a telescope (cystoscope)
through which the prostate can be viewed. There is minimal bleeding
associated with this technique and with small prostates it is possible
to leave the patient without a catheter after the operation.
The operation can be conducted under general anaesthetic with the
patient asleep or under a spinal block with the patient awake. The
type of anaesthetic will be decided with the anaesthetist based
on preference and safety.
Once anaesthetised a telescope is passed down the penis and into
the bladder. The bladder and prostate are thoroughly inspected.
Using the laser under direct vision the obstructing prostatic tissue
is vaporised creating a cavity to allow passage of urine.

A catheter may be placed if necessary at the end of the procedure.
If a catheter is placed then the patient will need to stay overnight
for removal of the catheter the following morning.
The following clips show parts of the operation for your information
This first clip shows the view through the prostate towards the
bladder. The obstructing prostate can be seen as the red fleshy
lobes to either side (right bigger than left here) stopping the
free passage of urine. Comparison can be made with the view on the
last clip.
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This clip shows the initial vaporisation of the median lobe of the
prostate at the bladder neck. The aiming beam of the laser appears
as a red dot. Once the laser is activated streams of bubbles can
be seen as the prostate vaporises. The reaction of the prostate
is checked after a few seconds to ensure good vaporisation. There
is no bleeding
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Further vaporisation of the left side of the prostate is shown.
Again there is no bleeding. Just at the end of the sequence the
white fibres at the edge of the obstructing prostate can be seen.
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Once the majority of the left side has been cleared the laser is
used to do the same on the right.
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Towards the end of the procedure there is a good channel through
the prostate and any untidy areas can be further vaporised. Further
vaporisation was undertaken to the median lobe before the end of
the procedure but the entire procedure on this moderately enlarged
gland took 27 minutes. Comparison can be made to the initial view
above.
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