Vet Surg 2020 Flashcards
Phase II journal article review
Koch et al. Vet Surg 2020
“topical anesthesia laparoscopic ovariectomy”
*Hackett
-pain measured by visual analogue scoring and serum cortisol response
-quantity of sedation, operative VAS scores, and preoperative cortisol concentrations did not differ between treatment groups
-removed ovaries unilaterally (right or left PLF approach)
Pouyet et al Vet Surg 2020
“mini sinusotomy”
Phase 2
-most structures assigned a score of 3 (complete visualization) with complete or subcomplete visualization in 9/10 horses.
-no difference in score between the FS and CMS approaches to CMS
-RMS: partial to no visualization of tooth roots 108 and 208 in 6 cases
-Complete visualization of the RMS and/or the VCS after fenestration of the MSB was achieved in only three of nine specimens.
Phase 3
-A score of 3 (complete visualization) was given for most structures
-Visualization of the FS cul-de-sac was partial in 4/6 horses, subcomplete in one horse, and complete in one horse.
-Visualization of the caudomedial aspect of the dorsal conchal sinus was subcomplete in 4/6 horses and complete in 2/6 horses.
-the roots of 108/208 were inside the RMS according to radiography in eight of ten specimens in phase 2 and visible after needle minisinusotomy in only three of eight heads.
-The roots of 110/210 were only within the CMS in two of six horses; so they were not visible with the RMS approach in those two horses.
Complications: no hemorrhage, just petechiation. Mild subcutaneous emphysema around sinusotomy portal.
According to Pouyet et al Vet Surg 2020, what 3 structures had the lowest visualization scores for the frontal sinus, caudal maxillary sinus, and rostral maxillary sinus?
Frontal sinus: caudal cul de sac
CMS: frontomaxillary opening
RMS: none, all had complete visualization
(see table 2 in paper)
Farfan et al. Vet Surg 2020
“MCP tension band, minimally invasive”
-mean percentage of cartilage removed was 66% for the metacarpus/metatarsus surface and 70% for the proximal phalanx surface and 60 % for the two sesamoid bones
-tension band accurately placed via 4 stab incisions
Quitzan et al. Vet Surg 2020
“vessel sealing device, multiple sterilization cycles”
*similar to hacket paper from 2017
-mean diameter of arteries was 3 mm
-failure was observed on 10th cycle going to 13th cycle in 37% of handpicks
-tissue adherence increased after each cycle
-max external temp and sealing time were not different for cycles up to failure
-microscopic scratches occurred on surface with increased use
Delli-Rocili et al. Vet Surg 2020
“paravertebral and nephrosplenic space”
-20 mL of either lidocaine or saline was injected into each paravertebral nerve site or into each local portal site to facilitate laparoscopy for closure of the nephrosplenic space.
-no difference in VAS scores between groups
-duration of surgery similar between two groups (mean time to close NSS was 42 min)
-no difference in effect between body condition scores, but landmarks harder with score >4
Dubois et al. Vet Surg 2020
“hemiepiphysiodesis”
-median age was 113 days
-procedure stopped MCP varus deformity in all limbs treated based on visual evaluation and farm manager satisfaction
-physis ablation was consistently achieved in 11 foals
-no complications observed other than mild edema at surgical site
Monck et al Vet Surg 2020
“plate fixation, novel pedicle screw, mandibular fracture”
-LCP constructs achieved greater stiffness and load at failure (4656N) compared to PDW constructs
-Yield did not differ between types of fixation
-Tooth involvement was noted in two LCP constructs with failure via bone fracture
-pedicle screw external fix failed via wire unraveling and screw bending
-LCP constructs seemed to sustain higher loads at fail- ure (57% of those sustained by intact mandibles)
-LCP constructs seemed stiffer (55%)
-LCP constructs seemed to sustain higher loads before
yielding (53%)
Walker et al Vet Surg 2020
“staph resistance genes, chlorhexidine”
-one or more sac genes were identified in 52/70 isolates
-no association between chlorhexidine MIC and presence of one or more sac genes or presence of quacA/B
-Quaternary ammonium compound resistance genes were present in MRSP and MSSP isolates, but with exception of qacG gene, none of these genes were associated with increased MIC
-should be able to use chlorhexidine in staph MRSP and MSSP
Sinovich et al Vet Surg 2020
“barbed suture, pelvic flexure”
-double layer closure had the highest bursting pressure (mean of 178 mmHg) but was longer to do
-barbed suture time was equal to single layer closure technique with non-barbed, but bursting strengths were lower for barbed compared to single layer and double layer closure
-unidirectional barbed suture had reduction in lumen diameter compared to bidirectional and single layer closures
Tobias et al. Vet Surg 2020
“tensile properties of suture, PBS”
*mulon on paper
-2-0 and 3-0 Maxon had the highest breaking loads (111.67 N and 79.71 N, respectively
-2-0 PDSII and 3-0 Securodox had the lowest (68.71 N and 48.73 N, respectively
-Maxon 2-0 and 3-0 had the greatest elongations (9.68 mm and 8.45 mm, respectively) for their size, and 2-0 Biosyn and 3-0 Securocryl had the least
-With incubation, Maxon (2-0), PDS II (2-0, 3-0), and Securodox (2-0, 3-0) maintained or gained strength over 4 weeks.
-Strengths of 2-0 and 3-0 Biosyn and 3-0 Maxon were maintained for 2 weeks
-Monocryl and Securocryl lost 20% to 44% of baseline strength within 1 week and 60% to 72% within 2 weeks.
-Day 7 strengths of 2-0 Biosyn and 2-0 Mono- cryl were greater than baseline strength of 2-0 PDS II. Strength of 3-0 Biosyn at day 14 was greater than strength of Monocryl at days 7 and 14 and greater than strength of 3-0 PDS II, 3-0 Securodox, and 3-0 Securocryl
-Maxon suture had the greatest strength and elongation, and Biosyn had the greatest stiffness.
Brown et al. Vet Surg 2020
“Diagnostic analgesia, ODSP”
-Clinical signs had improved in 13 of 18 horses at long-term follow-up
-Clinical signs improved in nine of 10 horses responding to diagnostic analgesia but only in four of eight horses that did not undergo diagnostic analgesia
-Although the likelihood of long-term improvement increased with prior diag- nostic analgesia (odds ratio = 6.3; 95% confidence interval = 0.73, 55.0; P = .09), it did not reach statistical significance.
-primary clinical sign was misbehavior under saddle
Muntwyler et al. Vet Surg 2020
“antimicrobial retrospective, arthroscopy”
-99% received antimicrobials prior to surgery
-only 40% received antimicrobials within 60 min of surgical incision
-First incision was performed more than two half-lives after administration of sodium penicillin in 46 of 131 (35.1%) horses
-body weight was associated with underdosing penicillin and TMS, but not gent
-77.2%) were prescribed antimicrobials after discharge
Orr, K. Vet Surg 2020
“colonic lactate”
-No association was found between colonic venous lactate values before (P = .011) or after (P = .201) manual correction of large colon volvulus and determination of short-term outcome.
-Peripheral venous lactate at admission ≥3.2 mmol/L and after manual correction ≥5 mmol/L, arterial lactate postmanual correction ≥3.53 mmol/L, and histomorphometric measurements of mucosal hemorrhage ≥3 and I:C ratio > 1 were associated with poor short- term outcome.
-PCV >50% associated with poor outcome
-54% with PCV>50% died
-Six of 19 (31.6%) horses with a venous lactate of ≥3.2 mmol/L at admis- sion died. Fourteen of 15 (93.3%) horses with venous lac- tate of <3.2mmol/L at admission survived.
-Venous lactate measured at admission was 59% accurate in predicting short-term outcome (sensitivity, 86%; specific- ity, 52%; PPV, 32%; NPV, 93%).
-LCV cases with a venous lactate postmanual correction ≥5 mmol/L, three of four (75%) horses died.
Tucker et al. Vet Surg 2020
“pudendal artery, chitosan”
-Chitosan granules placed in the wound successfully controlled the hemorrhage, whereas the use of gauze packing alone failed.
