This study evaluated the outcomes of three surgical techniques used to correct abomasal displacement in dairy cattle: right flank omentopexy, right flank omentoabomasopexy, and left flank abomasopexy. The study found that cattle corrected with right flank omentopexy or left flank abomasopexy were more likely to return to normal milk production than those corrected with right flank omentoabomasopexy. Concurrent diseases did not significantly affect the likelihood of returning to normal milk production. Reported post-operative complications were infrequent.
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Journal of Veterinary Science and Animal Husbandry (JVSAH) is a scientific journal which has topics associated with fundamental and aspects of veterinary science and animal husbandry. JVSAH has a special feature of publishing special issues in experimental clinical research, veterinary medicine and current research. At Annex Publishers, we tend to publish quality articles and try our best to provide the most effective analysis journal to the scientific community.
Retained Products of Conception (RPOC) occur in 1 % of cases. Clinical features of 41 women diagnosed of RPOC by hysteroscopy, to establish the best time-lapse of an expectant management after an office hysteroscopy avoiding an operative hysteroscopy to permit a spontaneous expulsion, were analyzed. There were no differences between patients who suffered a spontaneous expulsion or those in whom a persistence of RPOC was observed at time of surgical removal in terms of age, gravidity, prior uterine surgeries, uterine alterations, type and time of pregnancy termination and ultrasonographic characteristics. There was a higher rate of spontaneous expulsion after 4 weeks from the office hysteroscopy compared with those where the surgical removal was performed up to 4 weeks after the diagnosis (p-value 0.011).
Femoral hernias, comprise 2% to 4% of all hernias in the inguinal region, and occur most commonly in women. Th ey present typically with a mass below the level of the inguinal ligament. The sac may contain preperitoneal fat, omentum, small bowel, or other structures and have a high rate of incarceration and strangulation due to the small size of the hernia neck orifice, requiring emergency surgery. We present the case of a 54-year-old female patient with intestinal occlusion due to incarcerated femoral hernia, repaired by laparoscopic approach, that gave the patient the opportunity to attend her daughter’s wedding the same day.
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
JOURNAL OF VETERINARY SCIENCE & ANIMAL HUSBANDRYAnnex Publishers
Journal of Veterinary Science and Animal Husbandry (JVSAH) is a scientific journal which has topics associated with fundamental and aspects of veterinary science and animal husbandry. JVSAH has a special feature of publishing special issues in experimental clinical research, veterinary medicine and current research. At Annex Publishers, we tend to publish quality articles and try our best to provide the most effective analysis journal to the scientific community.
Retained Products of Conception (RPOC) occur in 1 % of cases. Clinical features of 41 women diagnosed of RPOC by hysteroscopy, to establish the best time-lapse of an expectant management after an office hysteroscopy avoiding an operative hysteroscopy to permit a spontaneous expulsion, were analyzed. There were no differences between patients who suffered a spontaneous expulsion or those in whom a persistence of RPOC was observed at time of surgical removal in terms of age, gravidity, prior uterine surgeries, uterine alterations, type and time of pregnancy termination and ultrasonographic characteristics. There was a higher rate of spontaneous expulsion after 4 weeks from the office hysteroscopy compared with those where the surgical removal was performed up to 4 weeks after the diagnosis (p-value 0.011).
Femoral hernias, comprise 2% to 4% of all hernias in the inguinal region, and occur most commonly in women. Th ey present typically with a mass below the level of the inguinal ligament. The sac may contain preperitoneal fat, omentum, small bowel, or other structures and have a high rate of incarceration and strangulation due to the small size of the hernia neck orifice, requiring emergency surgery. We present the case of a 54-year-old female patient with intestinal occlusion due to incarcerated femoral hernia, repaired by laparoscopic approach, that gave the patient the opportunity to attend her daughter’s wedding the same day.
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Live birth by fallopian tube sperm perfusion in hyperprolactinemic woman afte...lukeman Joseph Ade shittu
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In cases of Nulliparous prolapse or even patients deserving child bearing uterus preserving surgeries are done.
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Live birth by fallopian tube sperm perfusion in hyperprolactinemic woman afte...lukeman Joseph Ade shittu
The case presented describes a live birth following treatment of a 35-year-old woman with fallopian tube sperm perfusion (FTSP) using donor sperm after three-repeated unsuccessful courses of In-vitro fertilization (IVF) with Percutaneous Epididymal Sperm Aspiration (PESA), Testicular Sperm Extraction (TESE), and donor sperm. The indication of FTSP is hereby explored and discussed.
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In cases of Nulliparous prolapse or even patients deserving child bearing uterus preserving surgeries are done.
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Journal of Clinical and Experimental Research in Cardiology (JCERC) is an international open access, scholarly peer-reviewed journal publishing high quality articles in all areas of cardiology related fields, especially current research, new concepts, novel methods, new therapeutic agents, and approaches for early detection and prevention of cardiac disorders and reporting new methods on basic and advanced clinical aspects of cardiology research.
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Abstract
The objectives of this retrospective study were 1. To determine the effect of three surgical techniques (right flank omentopexy, right flank omentoabomasopexy, and left flank abomasopexy), and 2. To determine the effect of concurrent disease on return to normal milk production. Return to normal milk production occurred in 86.3% of cows diagnosed with LDA. Results suggested that cattle diagnosed with LDA corrected via right flank omentopexy or left flank abomasopexy were significantly more likely to return to normal milk production as compared to those corrected via right flank omentoabomasopexy (p< 0.02). No significant difference in return to normal milk production was noted between surgical techniques for correction of RDA (p=1.000) and right abomasal volvulus (p=0.596). Concurrent disease diagnoses did not affect return to milk production. Reported complications were infrequent (n=11).
List of abbreviations: LDA- Left displaced abomasum; RDA- Right displaced abomasum; RAV- Right abomasal volvulus; RAOV- Right abomasal-omasal volvulus; RFO- Right flank omentopexy; RFOA- Right flank omentoabomasopexy; LFA- Left flank abomasopexy; DA – Displaced Abomasum
Abstract
Three surgical case reports are presented to demonstrate the clinical efficacy of using an improved aqueous solution of chlorine dioxide complex (160 ppm) as a topical antiseptic in the post operative management of serious wounds in dogs. In vitro studies are included to demonstrate the antiseptic properties of this new chlorine dioxide complex.
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Abbreviations: ClO2-Chlorine dioxide; Cl2-Chlorine; PPM-Parts Per Million; SPP-Species; TEM-Transmission Electron Micrograph
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The objective of this investigation was to evaluate the efficacy and safety of purified Shilajit in moderately arthritic dogs. Ten client-owned dogs in a randomized double-blinded study received either a placebo or Shilajit (500 mg) twice daily for a period of five months. Dogs were evaluated each month for physical condition (body weight, body temperature, heart rate, and respiration rate) and pain associated with arthritis (overall pain, pain from limb manipulation, and pain after physical exertion). Serum samples collected from these dogs were examined each month for biomarkers of liver (bilirubin, ALT, and AST), kidney (BUN and creatinine) heart and muscle (creatine kinase) functions. The findings of this study revealed that dogs receiving Shilajit (Group-II) showed a significant (P< 0.05) reduction in pain from limb manipulation by day 60, and overall pain and pain after physical exertion by day 120. Maximum pain reduction, using all three criteria, was observed on day 150. Pain level remained significantly unchanged in dogs receiving the placebo. Dogs in either group showed no significant change (P>0.05) in physical parameters or serum markers, suggesting that Shilajit was well tolerated by moderately arthritic dogs. It was concluded that Shilajit significantly (P< 0.05) reduced pain in osteoarthritic dogs and markedly improved their daily life without any side effects.
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The international nomenclature of the anatomical, histological and embryological terms is known as Nomina Anatomica Veterinaria (N.A.V.), Nomina Histologica Veterinaria (N.H.V.) and Nomina Embryologica Veterinaria (N.E.V.).
This is the tripod of terms for the morphological sciences in our profession, a dictionary of terms used by all specialists in the basic and in the clinical sciences.
The discovery of the presence of stem cells and precursors with high regenerative potential in the mammary gland, hypothetically maintained throughout the course of the productive life of the dairy cow sheds an interesting perspective in the research which is interested to clarify all physiological clues and possible solutions to increase or maintain longer the potential production of dairy cows during life span of lactation. In 2006, Connie Eaves' lab in Vancouver (Stingl et ., 2006) [1]
Abstract
Mitogen-Activated Protein Kinase (MAPK) pathway is a signal transduction pathway that functions in a wide range of physiological and pathophysiological cellular events including cell proliferation, differentiation, apoptosis, migration, inflammation, metabolic disorders and diseases. In skeletal muscle, it plays an essential role in muscle fiber specialization, muscle mass maintenance, damage induced muscle regeneration and muscle diseases. This review provides an overview of MAPK pathway and its pathophysiological role in skeletal muscle diseases with a primary focus on muscular dystrophy and atrophy.
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Volume 1 | Issue 4Abstract
The objectives of this retrospective study were 1. To determine the effect of three surgical techniques (right flank omentopexy, right flank omentoabomasopexy, and left flank abomasopexy), and 2. To determine the effect of concurrent disease on return to normal milk production. Return to normal milk production occurred in 86.3% of cows diagnosed with LDA. Results suggested that cattle diagnosed with LDA corrected via right flank omentopexy or left flank abomasopexy were significantly more likely to return to normal milk production as compared to those corrected via right flank omentoabomasopexy (p<0.02). No significant difference in return to normal milk production was noted between surgical techniques for correction of RDA (p=1.000) and right abomasal volvulus (p=0.596). Concurrent disease diagnoses did not affect return to milk production. Reported complications were infrequent (n=11). Introduction
Outcome Following Surgical Correction of Abomasal Displacement in Lactating Dairy Cattle: A Retrospective Study of 127 Cases (1999-2010)
Rebecca L. Pentecost1, Andrew J. Niehaus1*, David E. Anderson2, Matt D. Miesner3 and D. Michael Rings1
1Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, 43210, USA
2Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
3Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
*Corresponding author: Andrew J. Niehaus, Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, 43210, USA, Tel: (614) 292-6661, E-mail: niehaus.25@osu.edu
Citation: Rebecca L. Pentecost, Andrew J. Niehaus, David E. Anderson, Matt D. Miesner, D. Michael Rings (2014) Outcome Following Surgical Correction of Abomasal Displacement in Lactating Dairy Cattle: A Retrospective Study Of 127 Cases (1999-2010). J Vet Sci Anim Husb 1(4): 402. doi: 10.15744/2348-9790.1.402
Research Article
Open AccessList of abbreviations: LDA- Left displaced abomasum; RDA- Right displaced abomasum; RAV- Right abomasal volvulus; RAOV- Right abomasal-omasal volvulus; RFO- Right flank omentopexy; RFOA- Right flank omentoabomasopexy; LFA- Left flank abomasopexy; DA – Displaced Abomasum
Methods described for correction of abomasal displacement include rolling, rolling and tacking / blind toggle pin placement, and various surgical methods [1-11]. Reports of nonsurgical correction techniques describe success rates similar to surgical techniques but document complications inherent to blind techniques [10,12]. Surgical correction of an abomasal displacement allows for definitive diagnosis, more reliable replacement and immobilization of the abomasum in an appropriate anatomic position, potential evaluation of other abdominal organs relevant to the post-parturient dairy cow, and more accurate prognostication due to palpable and visual inspection of the abomasum and other abdominal structures. Both minimally invasive and open surgical techniques have been described and validated for correction of the displaced abomasum [1,3,4,7-9].
Decreased milk production is noted in cows suffering from DA’s. This decrease in milk production is largely attributed to the displacement rather than the surgical correction. A few reports compared the potential effect of various open surgical techniques on milk production [4,13]. One report showed a trend towards higher milk production with a right paramedian abomasopexy technique as compared to the right flank omentopexy technique although statistical significance was not attained and there was no statistical difference in long term milk production [4]. We hypothesized that there would be no difference in outcome among three commonly used open laparotomy techniques: Right Flank Omentopexy (RFO), Right Flank Omentoabomasopexy (RFOA), and Left Flank Abomasopexy (LFA) with regard to return to normal milk production in lactating dairy cattle affected with displacement of the abomasum.
Cows suffering from a displaced abomasum commonly presents to the veterinary clinic with other complicating conditions. Most notably in our clinic are fresh cow diseases such as metritis, mastitis, and ketosis. The influence that these concurrent diseases have on the recovery of cows following correction of abomasal displacements is not well understood. Hence another objective of this study was to determine if cattle affected with concurrent diseases had a poorer outcome than cows suffering with an uncompleted
Received Date: December 12, 2013 Accepted Date: February 20, 2014 Published Date: February 24, 2014
Volume 1 | Issue 4
Journal of Veterinary Science & Animal Husbandry
ISSN: 2348-9790
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abomasal displacement.
The objectives of this retrospective study were 1. to determine the effect of surgical technique, and 2. to determine the effect of concurrent diseases on return to normal milk production. Mainbody
Lactating dairy cattle presenting to the Ohio State University Veterinary Medical Center for LDA, RDA, RAV (Right Abomasal Volvulus), or RAOV (Right Abomasal-Omasal Volvulus) over an eleven year period from April 1999 to January 2010 and for which follow up data could be obtained were studied. Patient and owner information was recorded along with historical information including the date of calving or approximate days in milk (DIM), if known. The type of abomasal displacement (LDA, RDA, RAV, RAOV) was recorded. Concurrent problems such as ketosis (assessed by the presence of urine ketones ≥ 15 mg/dl), metritis (as assessed by the presence feted uterine discharge in post partum cows), or mastitis (assessed by abnormal appearing milk on black plate examination, hot and swollen quarter(s), quarter(s) painful on palpation, or a positive California Mastitis Test) were recorded. The method of surgical correction (RFO, RFOA, or LFA), surgeon, date of surgery, and date of hospital discharge (if applicable) was also recorded. The reason for selecting the method of surgical correction was recorded if known.
A generalized description of surgical technique follows: RFO was performed similar to the technique described by Turner and McIlwraith [14] using a right paralumbar approach. After abdominal exploration, excess gas was released from the displaced abomasum using a needle attached to suction tubing. The abomasum was repositioned to the right cranial abdomen and the greater omentum was retracted caudally and dorsally until the pyloric antrum of the abomasum was visualized at the lower edge of the abdominal incision. The omentum was incorporated into the first layer of closure with the transversus abdominis using #3 chromic gut suture in a simple continuous pattern. Most surgeons preplaced additional mattress sutures cranial and caudal to the primary incision prior to the continuous line closure. The second muscle layer included the internal and external abdominal oblique muscles and was closed using #3 chromic gut in a simple continuous pattern. The skin was closed using #3 Braunamid in a Ford-interlocking pattern.
RFOA was performed through a right paralumbar incision with abdominal exploration and abomasal replacement in a similar fashion to the RFO. A small stab incision was created cranial and ventral to the primary incision. Suture material was placed through the stab incision and an abomasopexy placed in the pyloric antrum using either #3 chromic gut or #3 Braunamid depending on surgeon preference. An omentopexy was performed during abdominal closure as previously described.
LFA was performed using a left paralumbar incision similar to the technique described by Turner and McIlwraith [14]. Abdominal exploration was limited due to the blocking effect of the rumen from the left approach. The abomasum was identified and #3 Braunamid suture was placed in the greater curvature of the abomasum with long strands at either end of the pexy site. The free ends of the suture were passed by the surgeon under the rumen along the left body wall exiting the abdomen right of midline and several inches caudal to the xiphoid. The abomasum was repositioned to its normal location while an assistant tightened the sutures prior to knot tying. A stent was placed to decrease tension on the underlying skin. Sutures were removed 14 days post operatively.
Follow-up information was collected via client questionnaires and telephone interviews. A standardized questionnaire gathered information on milk production and surgical complications following surgery. Clients were asked to report the cow’s milk production prior to displacement, immediately following surgical correction, and during subsequent lactations. Owners were asked to provide a subjective assessment of whether they felt the animal returned to “normal milk production” following the surgical correction if specific production data were not available. Complications associated with surgery as well as recurrence of abomasal displacement were also recorded. Specifically, the clients were questioned if the cow developed incision infections, dehiscence, peritonitis, or gastrointestinal disturbances such as inappetance, bloat, diarrhea, or another DA. Clients were questioned as to whether the cows ever suffered post operatively from other diseases such as mastitis, metritis, ketosis, or a dystocia. Cows were said to have an LDA if the abomasum was found left of midline trapped between the rumen and the left body wall. Cows were said to have a RAV if (1) the abomasum was located on the right side of the abdominal cavity in the cranial abdominal quadrant; (2) the abomasum was distended causing medial displacement of the liver such that the diaphragmatic surface of the liver no longer contacted the right abdominal wall; and (3) a firm twist was palpated at the omasal-abomasal junction [1]. Cows were said to have a RDA if (1) the abomasum was located on the right side of the abdominal cavity in the cranial abdominal quadrant; (2) the abomasum was distended but not causing the degree of liver displacement as noted for the RAV; and (3) a firm twist was not palpated at the omasal-abomasal junction. Cows were said to have a RAOV if (1) the abomasum was located on the right side of the abdominal cavity in the cranial abdominal quadrant; (2) the abomasum was distended causing medial displacement of the liver such that the diaphragmatic surface of the liver no longer contacted the right abdominal wall; and (3) a firm twist was palpated at the reticulo- omasal junction. RAOV and RAV were grouped together for statistical analysis.
Fisher’s exact test was performed to assess the significance of return to normal milk production for the three surgical procedures as well as for primary and secondary diagnoses due to small sample size in some categories. GraphPad Prism was used for statistical
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analysis. Significance for all comparisons was set at P<0.05. Results
A review of medical records over an 11 year period from 1999 through 2010 revealed 678 cases of abomasal displacement that were corrected surgically at the OSU Veterinary Medical Center using RFO, RFOA, or an LFA. Breeds of cattle included Holstein (n=562), Jersey (n=88), Guernsey (n=14), Ayrshire (n=7), Brown Swiss (n=6), and Milking Shorthorn (n=1). The median age of cattle undergoing surgery was 4.2 years (mean: 4.4 ± 1.7 years; range 1.7-16.5 years). The median days in milk was 14 days (mean = 43.2 ± 87.2 days; range: 1-735 days) at the time of surgery. The majority of cows were diagnosed with LDA (n= 532), followed by RAV (n=106) and RDA (n=40).
Out of 678 cows having surgical correction of abomasal displacement, 664 (98 %) were discharged from the hospital and returned to the dairy farm. Duration of hospitalization was recorded for these 664 cows with the majority receiving outpatient treatment (n=387). Hospitalization lasting 1-7 days was recorded for 243 cases, between 8-14 days for 26 cases, and greater than 14 days for 8 cases. Post-operative complications noted prior to discharge were infrequent (n=11). Complications included incisional infection or seroma (n=6), peritonitis (n=1), rumen bloat (n=1) and redisplacement (n=3). Incisional infections resolved at the farm, the cow with bloat resolved prior to discharge, the cow with peritonitis died in the hospital, and all three cows with recurrent abomasal displacements were discharged prior to redisplacement and did not have the displacement corrected. All three of the cows that had a recurrent displacement of the abomasum were originally diagnosed with an LDA that was corrected with a RFO.
Long-term follow-up information was available for 127 patients (Table 1) and included 100 obtained for cows with LDA. Return to normal milk production occurred in 86.3% of cows diagnosed with LDA. Cows diagnosed with LDA corrected by RFO or LFA were significantly more likely to return to normal milk production as compared to RFOA (Fisher’s Exact Test; p=0.020). Follow-up was obtained for 18 cows diagnosed with RAV. Return to normal milk production occurred in 72.2% (n=13) of these cows with no significant difference between the RFO and RFOA techniques (Fisher’s exact test; p=1.000). For cows diagnosed with RDA, follow- up was available for 9 cows. Return to normal milk production was observed in 77.8% (n= 7) of these cows with no significant difference between the RFO and RFOA techniques (Fisher’s exact test; p=0.596).
RDA c
RAV b
LDA a
Return to Normal Milk Production?
Return to Normal Milk Production?
Return to Normal Milk Production?
Total
No
Yes
Total
No
Yes
Total
No
Yes
5
1
(20.0%)
4
(80.0%)
11
4
(36.4%)
7
(63.6%)
78
7
(9.0%)
71
(91.0%)
dRFO
4
1
(25.0%)
3
(75.0%)
7
1
(14.3%)
6
(85.7%)
15
5
(33.3%)
10
(66.7%)
eRFOA
N/A
N/A
N/A
N/A
7
2
(28.6%)
5
(71.4%)
fLFA
9
2
(22.2%)
7
(77.8%)
18
5
(27.8%)
13
(72.2%)
100
14
(14.0%)
86
(86.0%)
Total
Table Legend:
a Left displaced abomasum
b Right abomasal volvulus
c Right displaced abomasum
d Right flank omentopexy
e Right flank omentoabomasopexy
f Left flank abomasopexy
Table 1: Return to normal milk production grouped according to type of abomasal displacement and surgical correction method.
The impact of primary diagnosis (LDA, RAV, RDA) on return to normal milk production was evaluated using a Fisher’s exact test. No significant difference was noted between cows diagnosed with LDA, RAV, or RDA and return to milk production (p=0.235). 54 of the 127 cows with follow up had a secondary disease recorded in the medical record with an overall return to milk production of 85.1% (n=46/54). Cows with a concurrent diagnosis of metritis had a 100% (n=5/5) return to milk production followed by ketosis (86.2%; n=25/29), mastitis (83.3%; n=5/6), adhesions or peritonitis (81.8%; n=9/11), and musculoskeletal lesions (66.7%; n=2/3). There was no significant difference in return to milk production between cows with secondary diseases recorded those without. (Fisher’s exact test; p=0.661). Discussion
Displacement of the abomasum is one of the most common disorders affecting the periparturient dairy cow with an incidence
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reported from less than 1% up to 15% with a mean of 1% up to 5% [15-18]. Abomasal displacements create significant economic repercussions for producers due to the marked decrease in milk production and increased cost associated with correction or culling [13,19-21]. Numerous predisposing factors and potential etiopathogeneses have been suggested for development of abomasal displacement. Suggested predisposing factors include sex, pregnancy, parity, birth of twins, breed, body size, genotype, season of year, and diet [22-31].
The breed distribution in this study was consistent with our overall hospital admissions for dairy cattle. The average age at the time of abomasal displacement and surgical correction, as well as the median time for days in milk, are consistent with previous reports [30]. Similarly, LDA was the most common displacement to occur [32]. A number of surgical and nonsurgical approaches have been described for correction of abomasal displacement. Nonsurgical techniques are rarely performed at our institution. Surgeons routinely elect open surgical techniques with RFO, RFOA, and LFA comprising the majority of procedures.
Cows diagnosed with an LDA corrected by RFO or LFA were significantly more likely to return to normal milk production than those that were corrected via RFOA. This finding suggests that the increased security provided by an abomasopexy does not correlate to higher milk production postoperatively. It is likely that case selection and surgeon preference for a certain procedure biased our results. Some surgeons routinely add an abomasopexy to the right flank omentopexy in situations that they feel an omentopexy alone has a high likelihood of failure. Examples of intra-operative findings that may influence the decision to perform right flank abomasopexy in addition to omentopexy include excessively thin omentum, friable omentum with tears or avulsion of the omentum, and prior omentopexy.
Although the original number of cases of cattle with abomsal displacements in this retrospective study (678) seems adequate, follow-up was poor due to the 11 year study period over which the surgeries were performed. This prohibited us from being able to stratify the data and take additional parameters into account such as age at surgery, breed, and surgeon effect, because when we did, the number of cases in each of the group was very low. Perhaps if we were able to better correct for these other variables we would have been able to better identify an effect of surgery.
Because of variation among individual cows, different breeds, and different management schemes, we based “normal” milk production on the production of the cow prior to the abomsal displacement. For cattle that displaced too early in their lactation to accurately define their baseline production, their “normal” milk production was based on their production in previous lactations. If no previous milk production data was available for a given cow, “normal” milk production was based on similar cows from the herd of origin.
The number of cases in the RDA group is very low, especially after follow-up was obtained. Hence the statistical power is very low for this dataset. No conclusions can be made from these data.
In this study population, neither primary nor secondary diagnosis had a significant impact on return to normal milk production in contrast to previous reports [33]. We expected to find that cows having ketosis may be at increased risk for having a fatty, friable omentum that might predispose to tearing or stretching of an omentopexy in the early postoperative period. No such association could be identified. Increased numbers of cases with more detailed follow-up may have allowed us to better define the potential role of these sequela within the study population. Conclusions
Our data suggests that LDA corrected via RFO or LFA are more likely to return to normal milk production as compared to those whose displacements are corrected via a RFOA. We could not detect a significant difference between RFO and RFOA with regards to return to milk production for cows diagnosed with right sided displacements. Case selection may bias these results and further prospective studies evaluating surgical approach are required. In our study population concurrent disease did not impact the likelihood of returning to normal milk production. Acknowledgements
The authors would like to thank all of the veterinarians of The Ohio State University who contributed cases to this retrospective study. References
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