In this study we sought to compare laser tissue interaction in both the quasi-continuous waveform and electronically pulsed waveform of the carbon dioxide laser. An intramode analysis of the electronically pulsed form (at 350 and 650 pulses per second) was also undertaken. Intraperitoneal laser incisions were made on New Zealand white female virginal rabbits and tested at days 0, 5, 15, and 20. Testing involved proximal and midsection analysis of the laser sites to evaluate total area of vaporization, total area of tissue thermal damage, maximum diameter of injury at epithelial surface, maximum depth of laser penetration, angle of vaporization crater edges, and angle of tissue thermal injury of the three modes. Analysis of proximal versus midsection preparation revealed different zones of vaporization and injury within the same laser site. The zone of injury with respect to time was nonuniform, suggesting that the laser output in the electronically pulsed mode was not constant. An in vivo tissue lens phenomenon was also detected, resulting in a compound thermal vaporization and injury pattern.
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http://dx.doi.org/10.1016/0002-9378(84)90385-5 | DOI Listing |
Vet Anaesth Analg
January 2025
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
Objective: To determine the effects of rapid (1 minute) and slow (10 minutes) intravenous (IV) injection of sodium penicillin on arterial blood pressure in anesthetized horses.
Study Design: Prospective randomized clinical trial.
Animals: A group of 29 client-owned horses of various breeds, 1-20 years old, with body masses of 360-710 kg.
J Sci Med Sport
January 2025
Department of Health Promotion, School of Public Health, Faculty of Medical and Health Sciences, Sylvan Adams Sports Institute, Tel-Aviv University, Israel. Electronic address:
Objectives: The study aimed to examine the effects of exercise-induced muscle damage on running kinetics.
Design: Twenty-six adult recreational male runners performed 60 min of downhill running (-10 %) at 65 % of maximal heart rate. Running gait changes, systemic and localized muscle damage markers were assessed pre - and post-exercise induced muscle damage protocol.
Br J Anaesth
January 2025
Department of Anaesthesia, Rabin Medical Centre, Beilinson Hospital, Petach Tikva, Israel; Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel. Electronic address:
Heart Lung Circ
January 2025
Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. Electronic address:
Aim: Regulatory T cells (Tregs) play a crucial role in the development and progression of atherosclerosis. However, the specific association between Treg immune traits and atherosclerosis and related cardiovascular diseases remains unclear, impeding their potential for clinical therapeutic application.
Method: Fifty-eight Treg-related immune traits were obtained from the latest summary level genome-wide association study, which included 3,757 individuals from Sardinia.
Ann Vasc Surg
January 2025
Department of Surgery, University Hospital Centre Zagreb, Zagreb, Croatia.
Objectives: Brachial artery injury due to displaced supracondylar fracture (SC) of the humerus in children may present with pink pulseless hand (PPH), denoting a well perfused hand without radial pulse, or acute hand ischemia. Some reports state that brachial artery reconstruction is not necessary in children with persisting PPH, but the reports on long-term consequences such as intermittent claudications, growth retardation and ischemic contracture in children with pulseless hand are scarce and often misinterpreted. The objective of our analysis was to assess the long-term outcomes of children with brachial artery injury associated with SC fracture.
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