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Scandinavian Journal of Urology and Nephrology Volume 25, 1991 - Issue 2
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Original Article

Nd:Yag Contact Laser in Partial Nephrectomy: An Experimental Study in Piglets

Jaakko O. Salo Department of Surgery, Urological Unit, Helsinki University Central Hospital, Helsinki, Finland
,
Hannu Savolainen Department of Surgery, Urological Unit, Helsinki University Central Hospital, Helsinki, Finland
,
Tom Schröder Department of Thoracic and Cardiovascular Surgery, Helsinki University Central Hospital, Helsinki, Finland
,
Stig Nordling Department of Pathology, Helsinki University, Helsinki, Finland
,
Kalervo Verkkala Department of Surgery, Urological Unit, Helsinki University Central Hospital, Helsinki, Finland
&
Sakari Rannikko Department of Surgery, Urological Unit, Helsinki University Central Hospital, Helsinki, Finland
Pages 151-155 | Received 18 Jan 1990, Accepted 28 Aug 1990, Published online: 09 Jul 2009
 
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Abstract

The Nd:YAG contact laser technique with 12 W power output was used in partial nephrectomies in six piglets. Blood loss, total time and number of ligatures needed for haemostasis were compared in six partial nephrectomies performed with a steel scalpel. Mean blood loss was 53 g with the laser and 108 g with the steel scalpel (p < 0.04). The mean time needed for haemostasis were 9.5 and 16.2 min respectively (p=0.2) and the average number of ligatures required 1.5 and 8.8, respectively. The mean temperature rise at 5, 10 and 20 mm distance from the resection line was 5.3, 1.2 and 0.3°C. respectively. The use of laser reduced blood loss and shortened the operation time. Further studies are needed concerning renal function after kidney surgery with a laser.

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