Unilateral and Bilateral Laparoscopic Ovariectomy in 157 Mares: A Retrospective Multicenter Study

Röcken, Michael; Mosel, G.; Seyrek-İntaş, K.; Seyrek-Intas, D.; Litzke, F.; Verver, Jorrit; Rijkenhuizen, A. B. M.

doi:10.1111/j.1532-950x.2011.00884.x

Cited by 40 publications

(66 citation statements)

References 35 publications

(45 reference statements)

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“…In this series, a higher complication rate (34%, 13/38) was recorded for horses undergoing laparoscopic ovariectomy for removal of GCTs compared to mares undergoing laparoscopic ovariectomy for any reason 10.8% (17/157 mares) (Röcken et al . ). This may be associated with a higher number of enlarged ovaries in this series as incisional complications have been associated with increased ovarian size (Rodgerson et al .…”

Section: Discussionmentioning

confidence: 97%

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Granulosa cell tumours in the mare: A review of 52 cases

Sherlock

Lott-Ellis

Bergren

et al. 2015

Equine Veterinary Education

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Summary Granulosa cell tumour (GCT) is reported to be the most common ovarian neoplasm in the mare. A multicentre retrospective study evaluating the medical records of horses undergoing ovariectomy for treatment of a GCT was undertaken, documenting the presenting clinicopathological features, treatment and outcome. Follow‐up information was obtained by telephone questionnaire. Fifty‐two mares were included. Most presented with behavioural/reproductive abnormalities, including stallion‐like behaviour (50%), aggression (31%), prolonged oestrus or nymphomania (19%), and persistent anoestrus (8%). Most (93%) affected ovaries had a multilocular appearance when examined ultrasonographically. Only 60% of horses with histopathologically confirmed GCTs demonstrated elevations in serum inhibin concentrations. Twenty‐five percent of horses had histopathologically confirmed bilateral GCTs. Ninety‐four percent of horses that underwent ovariectomy were discharged from the hospital. Standing laparoscopic ovariectomies had a lower complication rate (34%) than other surgical methods. Long‐term complications were uncommon (11%). In conclusion, histopathologically confirmed GCTs can occur in the presence of normal serum inhibin concentrations. The high prevalence of bilateral GCTs indicates that thorough evaluation of the contralateral ovary is necessary. Surgical ovariectomy for treatment of GCTs has favourable short‐ and long‐term outcomes. Standing laparoscopic ovariectomy may be associated with a lower complication rate than other surgical methods.

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Section: Discussionmentioning

confidence: 97%

“…Additionally, it has been noted that the use of electrosurgical instruments may increase the risk of post operative adhesions (Röcken et al . ) warranting continued follow‐up studies to evaluate the long‐term outcome of such cases.…”

Section: Discussionmentioning

confidence: 99%

Granulosa cell tumours in the mare: A review of 52 cases

Sherlock

Lott-Ellis

Bergren

et al. 2015

Equine Veterinary Education

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“…The postoperative complications encountered in this case series consisted of fever, mild colic, and incisional swelling. These complications are commonly reported after laparoscopic ovariectomy in horses and typically resolve with minor treatment, and without long‐term complication . A larger prospective study comparing unilateral and bilateral techniques would be necessary to investigate the relative number of complications and compare the outcomes of both procedures.…”

Section: Discussionmentioning

confidence: 99%

“…Minimally invasive standing laparoscopy is a common and accepted technique for ovariectomy in the mare . Most laparoscopic bilateral ovariectomies require incisions in both paralumbar fossae, with 2‐3 portals per paralumbar fossa .…”

Section: Introductionmentioning

confidence: 99%

Left paralumbar laparoscopic bilateral ovariectomy in mares

et al. 2017

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Objective: To develop a novel technique for left paralumbar laparoscopic bilateral ovariectomy in standing, sedated mares.Study design: Prospective descriptive clinical study.Animals: Twelve client-owned mares.Methods: Healthy mares with normal ovarian palpation and ultrasonographic appearance were enrolled. Horses were restrained in standing stocks and administered a variable rate infusion of sedation. A left paralumbar bilateral ovariectomy was performed with 1 laparoscopic and 3 instrument portals. Access to the right ovary was facilitated by retracting the descending colon and associated mesentery with a fan retractor. Ovaries were removed with traumatic forceps, and a blunt tip vessel sealing device. A laparoscopic portal within the 17th intercostal space provided good visualization of the right ovary and reduced interference between instrumentation. Complications were recorded during hospitalization. In addition, an owner follow-up questionnaire was used to determine complications after discharge from the hospital.Results: Left paralumbar bilateral ovariectomy was successful in all 12 mares, with a mean surgical time of 76 6 8 minutes. Postoperative complications occurred in 4/12 (33%) mares and included fever, mild colic, incisional swelling, and azotemia. Complications resolved and mares returned to full activity, with complete owner satisfaction.Conclusions: Bilateral ovariectomy can be successfully achieved with minimal morbidity in standing mares with normal ovarian ultrasonographic appearance via left paralumbar laparoscopy.

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“…There is a good prognosis following standing laparoscopic removal of large, pathological ovaries and low complication rates are reported: 99-100% of cases are reported to return to their previous level of work and 85-93% of cases are successfully bred within 30 months after surgery (Hubert et al 2006;Lloyd et al 2007;de Bont et al 2010;Kummer et al 2010;R€ ocken et al 2011;Kelmer et al 2013). Short-term survival rates for HP vary from 39 to 74% (Pusterla et al 2005;Dechant et al 2006;Conwell et al 2010).…”

Section: Prognosismentioning

confidence: 99%

Treatment of haemoperitoneum secondary to ruptured granulosa cell tumours in two mares

Worsman

Barakzai²,

Bont

et al. 2018

Equine Veterinary Education

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SummaryThis report describes two cases of successful surgical management of granulosa cell tumours (GCT) in mares presenting with haemoperitoneum (HP). Controlled abdominal drainage was initially attempted in Case 1 but was not successful. A ventral midline exploratory laparotomy allowed removal of a haemorrhaging 13 kg GCT. The mare made a full recovery and returned to normal work as a driving pony 11 months post-operatively. In Case 2 controlled abdominal drainage was followed by standing left flank laparoscopic visualisation of the bleeding ovary and transection of the ovarian pedicle by electrocautery. The GCT was then removed via a ventral midline incision due to its large size. Haemoperitoneum can be associated with GCTs and in some cases is severe enough to prompt emergency treatment. Stabilisation of the patient and removal of the haemorrhaging GCT can lead to a successful outcome.

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Unilateral and Bilateral Laparoscopic Ovariectomy in 157 Mares: A Retrospective Multicenter Study

Abstract: Laparoscopic ovariectomy in standing sedated mares provides good surgical access and is associated with low morbidity.

Cited by 40 publications

References 35 publications

Granulosa cell tumours in the mare: A review of 52 cases

Granulosa cell tumours in the mare: A review of 52 cases

Left paralumbar laparoscopic bilateral ovariectomy in mares

Treatment of haemoperitoneum secondary to ruptured granulosa cell tumours in two mares

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