instruments/lap Flashcards
Gomez Quitzan et al. Vet surg 2020
Evaluation of the performance of an endoscopic 3mm electrothermal bipolar vessel sealing device intended for single use after multiple use-and-resterilisation cycles
-How many cycles until the handpiece failed?
-What sterilization method was used?
-10 cycles (recommend use up to 9 cycles)
-hydrogen peroxide plasma resterilization
McChesney et al. Vet surg 2021
Evaluation of depth gauge accuracy in a canine tibial plateau levelling osteotomy model
-What was the effect of depth gauge base diameter size on measurements?
-What was the effect of hole type?
-Which hole was variability greatest for?
-Depth gauges with base diameter <5mm measured smaller than those with base diamter >5.5mm.
- All measured smaller than micrometer (gold standard). 2.2mm for compression hole, 0.82mm for combination hole, 3.57mm for stacked combination (proximal) hole.
-Bone measurement variability between depth gauges was less for the combination and compression holes than for the stacked combination hole.
Klever et al. VCOT 2022
Evaluation and comparison of self-made and commercial calibration markers for radiographic magnification correction in veterinary digital radiography
-what magnification error did 1cm deviation from the anatomical reference point result in?
-what was the most practical marker?
-1%
-commercial spherical marker with a flexible segment arm had the best results regarding practicability.
Erickson et al. Vet surg 2020
In vitro holding strength of the laparoscopic Miller’s knot compared with open Miller’s knot, open surgeon’s throw, and laparoscopic surgeon’s throw in a vascular pedicle model
-Which knot leaked at the highest pressure?
-Which knot leaked at lowest pressure?
Bonus points for what pressure
-open millers knot. (above 300mmHg, lap millers also was above 300mhg)
-Surgeons throw <40mmHg (no difference between lap and open
Maurin et al. Vet surg 2020
A systematic review of complications related to laparoscopic and laparoscopic-assisted procedures in dogs
-what was the most common complication?
-what was associated with lower rates of the above complication?
-what was the conversion rate for….
- female repro tract
-adrenal
- liver
-GI
-splenic laceration
-lower rates seen in more complex procedures rather than elective procedures
-conversion rates…
female repro: 0.7%
adrenal 2.3%
Liver 4.9%
GI 8.3%
Mayhew et al. Vet surg 2020
Cadaveric evaluation of fluoroscopy-assisted placement of one-lung ventilation devices for video-assisted thoracoscopic surgery in dogs
-What difference between Ez blocker when compared to double lumen tube (DLT) or bronchoscopy assisted arndt endobronchial blocker (EBB)?
-which method was least successful?
-EZ blocker faster.
-DLT
Anderson et al. Vet surg 2019
Complications related to entry techniques for laparoscopy in 159 dogs and cats
-What was the complication rate?
-What factors were associated with increased likelihood of complications?
-describe modified hasson entry technique
-describe veress needle entry technique
-describe ternamian visual entry technique
-21% complication rate ( 91% were minor).
-Complications were 11.7 times more likely after a paramedian entry than after midline entry.
-odds ratio of complications were 5 and 28 times higher after modified Hasson (26% complication) and Veress needle (60% complication) entries than after Ternamian visual entry (9% complication).
-Modified hasson - direct visualisation of linea alba and then incised
-veress needle has blunt obturator on spring - when pressed against fascia the obturator retractors and needle penetrates, then obturator pings out and protects organs.
-use reusable threaded cannula, small incision in fascia and then screw in cannula a little, put scope in and visualise entry with scope.
Valenzano et al. Vet surg 2019
Performance and microbiological safety testing after multiple use cycles and hydrogen peroxide sterilisation of a 5-mm vessel-sealing device
-How many cycles til ligasure and maryland jaws failed?
-what was predominant method of failure?
-7.7 (minimum 4, maximum 12)
-handset button failure (11/12)
-
Gordo et al. JSAP 2020
Feasibility of the single-incision subxiphoid approach for video-assisted thoracoscopic surgery in dogs
-describe the approach
-how many cases was it successful in?
-how many cases converted to open?
-3-4cm incisino over xyphoid, xyphoid removed, tunnel created towards pleura and alexis wound retractor placed
-5/10 (50%)
-2/10 (20%) - one to lateral thoracotomy due to venacava laceration, one to sternotomy due to adhesions.
(three cases had additional port placed).
M. Smith et al. Vet surg 2024
Variables affecting surgeons’ use of, and preferences for, instrumentation in veterinary laparoscopy
-Which factor was perceived to make operation of laparoscopic instruments harder?
-Which instrument was considered hardest to use?
-surgeons with smaller glove sizes (<6.5)
-laparoscopic stapler
M. Parlier et al. Vet surg 2024
Prospective, randomized, clinical trial on the effects of laparoscopic insufflation pressures on portal pressures in dogs
-What was the rate of increase of portal pressure per mmHg of insufflation pressure?
Portal pressure increased at an average rate of 7.45% per mmHg of insufflation pressure.
Portal pressure increased by 38% at 6 mmHg, 95% at 10 mmHg, and 175% at 14 mmHg compared to baseline.
N. Buote et al. Vet surg 2023
3D printed cannulas for use in laparoscopic surgery in feline patients: A cadaveric study and case series
-What was the effect of 3d printed cannulas?
-What complications were encountered?
-Significant reduction in surgical time , no. of instrument collisions and cannula complications if only used 3d guides in cadavers.
-Live procedures: 3d guides successful with no complications.
[cannulas made of dental resin, shorter than commercial cannulas - better for cats]
Kuvaldina et al. Vet surg 2023
Development of a minimally invasive endoscopic technique for excisional biopsy of the axillary lymph nodes in dogs
-describe the technique
skin incision 6cm caudal to triceps, in orientation of junction between latissimus and superficial pectoral.
muscles divided, stay sutures placed. SILS port inserted between muscles, 30mm 5 degree scope placed with 3.7mmHg insufflation.
