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Comparative Evaluation Of Esophagotomy In The Equine With And Without Pharyngostomy Tube

By: Safdar Hamid, Bhatti | Dr. Mazhar Iqbal.
Contributor(s): Dr. Mohammad | Dr. Muhammad Younis h | Faculty of Veterinary Sciences.
Material type: materialTypeLabelBookPublisher: 1995Subject(s): Department of Clinical Medicine & SurgeryDDC classification: 0427,T Dissertation note: The esophagus is one of the important parts of gastrointestinal tract of the animals. It is a specialized organ, serving to carry food from pharynx to the stomach. There are so many anomalies associated with esophagus like obstruction due to foreign bodies, tumors, strictures, diverticula and stenosis. Esophageal obstruction (choke) in equines can occur as a result of food impaction, orally administered caustic or corrosive medicinal agents and trauma to the neck. Choke is most commonly caused by food impaction, which can result in circumferential mucosal damage and subsequent esophageal strictures. The mega-esophagus may lead to pneumonia as a result of aspiration of ingesta. The diagnosis is based on the history and clinical signs. In all such cases esophagotomy is the only solution to the problem, as the conservative treatment does not help the animal. To carry out this experimental study 15 donkeys were divided into four groups. Group-I comprised of seven animals, Group-IT and III had three animals each and group-TV consisted of two animals. In group-I, the esophagus was incised longitudinally and closed in two layers. After closure of esophagotomy the pharyngostomy tube was passed for feeding purpose. In group II and III the esophagotomy procedure was the sam as in group I, but the animals were fed without pharyngostomy tube after surgery. The animals of group II, were kept on intravenous therapy for the first 72 hours and then shifted to the liquid diet per orum. Whereas the animals of group III were kept on liquid diet for the first seven days and then to the pelleted diet till 15th post-operative day. From then onward they were fed solid food orally. The esophagotomy incision in group IV was not sutured. These animals acted as control and were allowed to eat solid food orally from the very first post-operative day. The animals of each group were closely watched during the experimental period for seroma, leakage and infection. The tabulated and graphic results indicated that the animals of group II showed better results than the animals of group I, III and IV because: i) The esophagotomy incision healed through first intention. ii) No signs of dehiscence or leakage were noticed. iii) As the animals were kept on parenteral therapy for the first 72 hours, it helped in good mucosal healing and no leakage was seen. iv) The necropsy finding revealed, that the mucosal and muscular layers healed excellently.
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Veterinary Science 0427,T (Browse shelf) Available 0427,T
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The esophagus is one of the important parts of gastrointestinal tract of the animals. It is a specialized organ, serving to carry food from pharynx to the stomach. There are so many anomalies associated with esophagus like obstruction due to foreign bodies, tumors, strictures, diverticula and stenosis. Esophageal obstruction (choke) in equines can occur as a result of food impaction, orally administered caustic or corrosive medicinal agents and trauma to the neck. Choke is most commonly caused by food impaction, which can result in circumferential mucosal damage and subsequent esophageal strictures. The mega-esophagus may lead to pneumonia as a result of aspiration of ingesta. The diagnosis is based on the history and clinical signs. In all such cases esophagotomy is the only solution to the problem, as the conservative treatment does not help the animal.

To carry out this experimental study 15 donkeys were divided into four groups. Group-I comprised of seven animals, Group-IT and III had three animals each and group-TV consisted of two animals. In group-I, the esophagus was incised longitudinally and closed in two layers. After closure of esophagotomy the pharyngostomy tube was passed for feeding purpose. In group II and III the esophagotomy procedure was the sam as in group I, but the animals were fed without pharyngostomy tube after surgery. The animals of group II, were kept on intravenous therapy for the first 72 hours and then shifted to the liquid diet per orum. Whereas the animals of group III were kept on liquid diet for the first seven days and then to the pelleted diet till 15th post-operative day. From then onward they were fed solid food orally. The esophagotomy incision in group IV was not sutured. These animals acted as control and were allowed to eat solid food orally from the very first post-operative day. The animals of each group were closely watched during the experimental period for seroma, leakage and infection. The tabulated and graphic results indicated that the animals of group II showed better results than the animals of group I, III and IV because:

i) The esophagotomy incision healed through first intention.

ii) No signs of dehiscence or leakage were noticed.

iii) As the animals were kept on parenteral therapy for the first 72 hours, it helped in good mucosal healing and no leakage was seen.

iv) The necropsy finding revealed, that the mucosal and muscular layers healed excellently.

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