Salci H, et al. J Vet Sci. 2007 Dec;8(4):393-399. https://doi.org/10.4142/jvs.2007.8.4.393

Cecen G, et al. J Vet Sci. 2015 Mar;16(1):107-112. https://doi.org/10.4142/jvs.2015.16.1.107

Objective and design  Retrospective study of the outcomes of Heimlich valve drainage in dogs.Procedure  Medical records of the past 3 years were retrospectively reviewed. Heimlich valve drainage was used in 34 dogs (median body weight 30 ± 5 kg): lobectomy (n = 15), pneumonectomy (n = 9), intrathoracic oesophageal surgery (n = 2), diaphragmatic hernia repair (n = 1), traumatic open pneumothorax (n = 2), bilobectomy (n = 2), ligation of the thoracic duct (n = 1), and chylothorax and pneumothorax (n = 1 each). Evacuation of air and/or fluid from the pleural cavity was performed with the Heimlich valve following thoracostomy tube insertion. During drainage, the dogs were closely monitored for possible respiratory failure. Termination of Heimlich valve drainage was controlled with underwater seal drainage and assessed with thoracic radiography.Results  Negative intrathoracic pressure was provided in 29 dogs without any complications. Post pneumonectomy respiratory syncope and post lobectomy massive hemothorax, which did not originate from the Heimlich valve, were the only postoperative complications. Dysfunction of the valve diaphragm, open pneumothorax and intrathoracic localisation of an acute gastric dilatation–volvulus syndrome caused by a left‐sided diaphragmatic hernia following pneumonectomy were the Heimlich valve drainage complications.Conclusions  The Heimlich valve can be used as a continuous drainage device in dogs, but the complications reported here should be considered by veterinary practitioners.

Background: This study aims to examine the efficacy of clipping in thoracic sympathectomy based on electrophysiological evaluation and to investigate whether nerve conduction can be formed by collateral nerve extensions as a result of the clipping procedure to different levels of sympathetic nerve. Methods: Newly sacrificed six sheep hemithoraces were studied between August 2016 and October 2016. Thoracic sympathectomy was performed by clipping at T2, T3, T4, and T5 sympathetic chain levels and their branches. Electrophysiological studies were performed with an electromyography device and the filter range was 1 Hz with 20 µV/D amplification. Signals were processed digitally; bipolar subdermal needle electrodes were used as stimulation and recording electrodes (Ø 0.75 mm); and the ground electrode was placed in the intercostal muscle where the thoracic sympathectomy procedure would be performed. Results: Electrophysiological evaluations showed that clips placed on the main sympathetic chain branches and sympathetic nerve trunk prevented collateral impulse conduction and stimulated potentials were not recorded. However, sympathetic conduction continued at the same intensity after removal of the clips. Conclusion: Clipping of different regions of the sympathetic nerve provides electrophysiological blockage of the sympathetic nerve, and conduction continues after removal of the clips. However, the short- and long-term postoperative electrophysiological results after removal of the clips over the sympathetic nerve is still a question mark.

Bu olgu sunumu ile bir buzağıda Salter-Harris Tip I metacarpus kırığında uyguladığımız 90° açılı kama plağının postoperatif klinik ve radyolojik bulgularının rapor edilmesi amaçlanmıştır. Holstein melezi, 3,5 aylık, dişi bir buzağı ön bacağında kırık şikayeti ile kliniklerimize getirildi. Klinik muayenede, buzağının vital para-metreleri normaldi ancak inspeksiyonda sağ ön ekstremitede şiddetli topallık, metacarpophalangeal eklem prok-simalinde şişkinlik ve sıyrık yarası gözlendi. Ortopedik muayenede, bölgede spesifik kırık bulguları saptandı. Radyografik muayenede, sağ metacarpusun distal fizeal hattan kırılarak (Salter-Harris Tip I) disloke olduğu belirlendi. Hasta sahibine bilgi verildi ve genel anestezi hastanın operasyonuna karar verildi. Kırığın redüksiyonu sonrası fiksasyon için 90° açılı kama plağı kullanıldı. Plağın kama kısmı epifiz kısma çakıldı ve plaka vidalarla proksimal fragmente tespit edildi. Postoperatif atel destekli bandaj uygulandı. Rutin analjezik ve antibiyotik uygulama prosedürü reçete edildi. Buzağının postoperatif 15. gün kontrolünde, kırık bölgesinde stabilizasyonun devam ettiği, buzağının ilgili ekstremitesini bandajsız kullanabildiği gözlendi.

Background Function of the thoracic sympathetic chain (TSC) reportedly recovers after surgical clips are removed. Hence, this study was designed to study nerve regeneration after unclipping the TSC. Methods The bilateral TSCs of six goats were studied; the goats were separated into three groups (groups I, II, and III) during excision, clipping, and unclipping. During surgery, the TSCs were excised with a scalpel in group I and clipped in groups II and III. In group III, the clips were removed 1 month postoperatively and observed for possible nerve healing for 1 month. All TSCs were examined histologically following en block resection at 1 month postoperatively in groups I and II and at 2 months postoperatively in group III. Results Inflammation in nerve sections was noted following clip removal. Furthermore, there was significant degeneration and cell infiltration in the nerve fibers of the clipped regions. The Schwann cells around the peripheral nerve endings in the unclipped regions facilitated nerve transmission by reconstitution of myelin. Conclusion Clipping the TSC can cause histologic degeneration; however, histologic nerve regeneration occurs after unclipping.