Use of preoperative computed tomography for surgical treatment of recurrent draining tracts

Bouabdallah, Ryhan; Moissonnier, P.; Delisle, F.; Fornel, Pauline De; Maaoui, M.; Fayolle, P.; Viateau, Véronique

doi:10.1111/jsap.12163

Cited by 21 publications

(71 citation statements)

References 27 publications

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“…All grass seeds visualised directly in CT images in this study were in the respiratory tract or were surrounded by air. Contrary to previous reports, grass seeds in CT images appearing as elongated gas‐containing foci or hyperattenuating foci within soft tissues were not recognised (Schultz & Zwingenberger , Attanasi et al , Bouabdallah et al ). Similarly, tracts in CT images representing migration paths of the grass seeds were not recognised (Schultz & Zwingenberger ), although the route of a migrating grass seed could be deduced in some cases from the spatial relationship of lesions, for example in the cat with sublumbar abscess in which there was a focus of pulmonary consolidation immediately cranial to the abdominal lesion.…”

Section: Discussioncontrasting

confidence: 82%

“…Similarly, tracts in CT images representing migration paths of the grass seeds were not recognised (Schultz & Zwingenberger ), although the route of a migrating grass seed could be deduced in some cases from the spatial relationship of lesions, for example in the cat with sublumbar abscess in which there was a focus of pulmonary consolidation immediately cranial to the abdominal lesion. As reported previously, CT appears to be useful mainly as a method for localising sites of lesions responsible for clinical signs and as a guide for ultrasonography (Attanasi et al ) or exploratory surgery (Bouabdallah et al ). Compared to CT using scanners with a single detector row, multi‐detector CT provides increased spatial resolution by use of thinner slices and faster scan times (Flohr et al ).Abscesses associated with grass seed foreign bodies had a range of CT features that reflected varying degrees of encapsulation.…”

Section: Discussionmentioning

confidence: 89%

“…Grass seed migration is a well‐recognised problem in dogs and cats (Brennan and Ihrke , Crha et al ). Grass spikes, spikelets and individual florets (which contain the grass seed) may be retrieved from many sites, including the ears, eyes, nose, brain, vertebral canal, thorax, abdomen, retroperitoneum, subcutaneous tissues and paws (Johnston & Summers , Brennan & Ihrke , Lotti & Niebauer , Aronson & Gregory , Frendin , Frendin et al , Demetroiu et al , Rooney & Monnet , Crha et al , Hopper et al , Dennis et al , Granger et al , Dembovska et al , Baglietto et al , Weinmann et al , Cerquetella et al , Marvel & MacPhail , Bouabdallah et al , Linon et al , Tinterrud et al ). In many cases, septic inflammation occurs as a result of infection by various bacteria that are carried by the seed, particularly Actinomyces or Nocardia spp.…”

Section: Introductionmentioning

confidence: 99%

“…(Johnston & Summers , Brennan & Ihrke , Frendin ). Inhaled grass seeds may pass down the trachea and bronchi, migrate into the pleural cavity and by following the diaphragm can reach the retroperitoneum and lumbar vertebrae (Johnston & Summers , Frendin et al , Marvel & MacPhail , Bouabdallah et al ). Migrating grass seeds in the urinary tract may cause obstruction or act as a nidus for calculus formation (Savet et al , Cherbinksy et al , Del Angel‐Caraza et al ).…”

Section: Introductionmentioning

confidence: 99%

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Computed tomographic findings in 44 dogs and 10 cats with grass seed foreign bodies

Vansteenkiste

Lee

Lamb

2014

J of Small Animal Practice

139

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OBJECTIVE To supplement recent reports of computed tomographic (CT) findings in dogs and cats with grass seed foreign bodies. METHODS Retrospective review of cases that had CT scan and subsequent retrieval of a grass seed during the same period of hospitalisation from a site included in the scan. RESULTS Records of 44 dogs and 10 cats were reviewed. Most were presented in the months July to December. Median duration of clinical signs was 4 weeks (range 2 days to 2 years). The most frequent clinical signs were soft tissue swelling (30% cases), coughing (28%), sneezing (28%) and discharge (26%). Grass seeds were retrieved from the thorax (35% cases), nasal cavity (31%), ear (7%), other sites in the head and neck (22%), sublumbar muscles (2%) and pelvic limb (2%). The grass seed was visible in CT images in 10 (19%) cases. Secondary lesions were visible in CT images of 52 (96%) cases, including collection of exudate (37%), abscess (24%), enlarged lymph nodes (22%) and pulmonary consolidation (20%). CT images appeared normal in 4% animals. CLINICAL SIGNIFICANCE Grass seeds within the respiratory tract are frequently visible in CT images, but in general CT appears to be more useful for localisation of secondary lesions than as a method of definite diagnosis.

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Section: Discussioncontrasting

confidence: 82%

Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Computed tomographic findings in 44 dogs and 10 cats with grass seed foreign bodies

Vansteenkiste

Lee

Lamb

2014

J of Small Animal Practice

139

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“…Further studies including cases of pneumothorax with suspected grass awn and systematic histopathology might assess if there is a similarity of the CT and pathologic features regardless of the finding of the grass awn. Our finding of a positive outcome for every patient probably reflects the selection of cases with surgically confirmed grass awns, as the retrieval of a source of infection is assumed to lower the probability of recurrence of a thoracic infectious disease or the occurrence of a sublumbar abscess . This resulted in a selection bias of dogs with positive outcome in this study.…”

Section: Discussionmentioning

confidence: 74%

CT is helpful for the detection and presurgical planning of lung perforation in dogs with spontaneous pneumothorax induced by grass awn migration: 22 cases

Tréhiou

Gibert

Sériot

et al. 2019

Vet Radiology Ultrasound

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Spontaneous pneumothorax induced by grass awns accounts for 5% of spontaneous pneumothorax and 22.5% of thoracic grass awn cases. Previous studies report limited interest of CT for spontaneous pneumothorax. Aims of this retrospective case series were to describe CT features of this condition and determine if CT features can efficiently localize the perforation site. Dogs that had a spontaneous pneumothorax, CT examination, thoracic surgery, and confirmed lung perforation due to a grass awn were included. Computed tomography studies were reviewed and compared to the surgical findings. In 19 of 22 (86.4%) dogs, the pneumothorax or its recurrence were ipsilateral to the perforation site. The perforation site was identified in 21 of 22 (95.5%) dogs and involved the caudal lobes in 20 of 22 (90.9%) cases. The lateralization and the involved lung lobe corresponded to surgical findings in 21 of 22(95.5%) dogs. The perforation site was characterized as a soft tissue attenuating focus lying against an extensive pleural thickening in 21 of 22(95.5%) dogs. An adjacent defect in the visceral pleura was seen in 13 of 22(59.1%) dogs. A grass awn was seen in 11 of 22(50%) dogs. The pneumothorax distribution and grass awn position consistently indicated the perforation side in this sample of dogs. The comparison with surgical findings suggests CT might be helpful for future presurgical planning of this etiology for pneumothorax.

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Treatment and outcome of spontaneous pneumothorax secondary to suspected migrating vegetal foreign body in 37 dogs

et al. 2021

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Background: The aim of this study is to describe surgical findings, treatment and outcome of spontaneous pneumothorax (SP) secondary to suspected migrating vegetal foreign body (MVFB). Methods: This retrospective study included dogs with computed tomography (CT) consistent with SP suspected to be secondary to MVFB that underwent thoracic surgery. They were divided into two groups according to whether CT identified (group 1) or only suspected (group 2) an MVFB. Results: Thirty‐seven dogs were included (twenty‐one in group 1 and 16 in group 2). An MVFB was identified during surgery in 18 of 21 of cases of group 1 and in 10 of 16 of group 2. An agreement between lobes affected on CT and surgical findings was observed in 34 of 40 lobes. In nine of 37 of cases, a lung perforation was identified without evidence of MVFB. Thirty‐nine lobectomies were performed: 15 complete and 24 partial. No recurrence of pneumothorax was observed. In four dogs, a second surgery was necessary to remove an MVFB 1.5 to 3 months after the initial surgery due to secondary draining tracts. Conclusion: Surgical approach planed with CT resolved SP in all cases before discharge with excellent short‐term outcome and no major complication. CT was reliable to assess perforated lung lobes in 85% of cases. Clinical signs of delayed draining tract developed in 33% of cases where surgery failed to find an MVFB identified on CT.

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Use of preoperative computed tomography for surgical treatment of recurrent draining tracts

Abstract: The proposed strategy provided a 95% (35 of 37) cure rate, after a single procedure in 81% (30 of 37) of cases. Recovery of a foreign body at surgery was not a prerequisite for the resolution of the recurrent draining tracts.

Cited by 21 publications

References 27 publications

Computed tomographic findings in 44 dogs and 10 cats with grass seed foreign bodies

Computed tomographic findings in 44 dogs and 10 cats with grass seed foreign bodies

CT is helpful for the detection and presurgical planning of lung perforation in dogs with spontaneous pneumothorax induced by grass awn migration: 22 cases

Treatment and outcome of spontaneous pneumothorax secondary to suspected migrating vegetal foreign body in 37 dogs

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