Dehiscence: Causes & Reasons

2.1

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Possible Causes for dehiscence

Patulous Eustachian Tube

It is important to differentiate between the autophony of semicircular canal dehiscence syndrome and patulous ET. [ncbi.nlm.nih.gov]

High resolution temporal bone computed tomography excluded superior semicircular canal dehiscence. [ncbi.nlm.nih.gov]

However, despite the abundance of diseases requiring a differential diagnosis from PET, such as superior semicircular canal dehiscence syndrome, perilymphatic fistula, acute [ncbi.nlm.nih.gov]

Achilles Tendon Rupture

The patient could be mobilized early despite bilateral involvement, but developed bilateral wound dehiscence which needed debridement and local flap coverage; aggressive rehabilitation [ncbi.nlm.nih.gov]

One case of superficial wound dehiscence healed with local wound care. No soft-tissue masses, bone formation or tumors were observed in the operative extremity. [ncbi.nlm.nih.gov]

Achilles-tendon-repair-27650 Achilles Tendon Associated Injuries / Differential Diagnosis Gastrocnemious muscle tear Achilles Tendon Complications Skin necrosis Infection / Dehiscence [eorif.com]

Prosthetic Cardiac Valve Dehiscence

The patient underwent urgent excision and replacement of the dehisced aortic valve, which was found to be infected with Staphylococcus aureus, with associated vasculitis; [nejm.org]

Figure 1 shows the point of dehiscence and a large echolucent space (pseuodoaneurysm) around the dehiscence. [omicsonline.org]

Figure 1 Transthoracic echocardiography apical view: dehisced and unseated bioprosthetic aortic valve. [casereports.bmj.com]

Postoperative Dehiscence

Of these cases, 786 (2.97%) had postoperative wound dehiscence. [ncbi.nlm.nih.gov]

OBJECTIVE It was hypothesized that synthetic meshes are a successful treatment option for spinal fascial dehiscence. [zora.uzh.ch]

We report a case successfully treated by extended redo carinal sleeve resection after full bronchial dehiscence. [ncbi.nlm.nih.gov]

Superior Semicircular Canal Dehiscence

[…] superior semicircular canal dehiscence syndrome endoscopic repair of superior canal dehiscence in the news - SCDS patient stories definition of SCDS common symptoms of SCDS [otosurgery.org]

Otic capsule dehiscence syndrome: Superior semicircular canal dehiscence syndrome with no radiographically visible dehiscence. ( 26322461 ) Wackym P.A....Carter D.M. 2015 [malacards.org]

dehiscence. [vestibular.org]

Otosclerosis

Case report and literature review regarding superior canal dehiscence syndrome. [ncbi.nlm.nih.gov]

All three patients were ultimately identified to have concurrent otosclerosis and superior canal dehiscence. [ncbi.nlm.nih.gov]

[…] acoustic energy through the dehiscence. [ncbi.nlm.nih.gov]

Conductive Hearing Loss

Vestibular and/or auditory findings indicative of canal dehiscence and demonstration of superior canal dehiscence on computed tomography of the temporal bone. [ncbi.nlm.nih.gov]

We herein report a case of posterior semicircular canal dehiscence (SCD) syndrome who had been audiologically followed up for eight years. [ncbi.nlm.nih.gov]

Patients with superior semicircular canal dehiscence (SSCD) may have conductive hearing loss (CHL) with normal middle ear (ME). [ncbi.nlm.nih.gov]

Endocarditis

In a 74-year-old woman with aortic valve endocarditis and shallow annular abscess, annulus dehiscence resulted after resection. [ncbi.nlm.nih.gov]

[…] consisted of thorough debridement, root replacement with reimplantation of the coronary arteries and correction of accompanying pathologies (aortoventricular and aortomitral dehiscence [ncbi.nlm.nih.gov]

Other possible echocardiographic findings: abscess dehiscence of prosthetic valve valvular regurgitation CT Cardiac CT angiography may demonstrate endocarditic vegetations [radiopaedia.org]

Uterus Rupture in Pregnancy

Definition Uterine rupture during pregnancy is a rare occurrence that frequently results in life-threatening maternal and fetal compromise, whereas uterine scar dehiscence [laparoscopyhospital.com]

Distinguishing between uterine rupture and uterine dehiscence First, it’s important to understand what a uterine rupture is and how that differs from a uterine dehiscence. [vbacfacts.com]

Dehiscence leading to uterine rupture A uterine scar can also dehisce (break apart) as a prior cesarean section scar is stretched. [medleague.com]

Acute Aortic Regurgitation

We reviewed reported cases of acute AR resulting from dehiscence of the aortic valve commissures. [ncbi.nlm.nih.gov]

Discussion Commissural dehiscence of the aortic valve is a rare cause of aortic regurgitation. [omicsonline.org]

Acute heart failure due to local dehiscence of aortic wall at aortic valvular commissure. Jpn J Thorac Cardiovasc Surg. 2000;48:80–2. PubMed CrossRef Google Scholar 4. [link.springer.com]

Blepharoptosis

We propose, rather, that the stretching, attenuation, disinsertion, or dehiscence of the upper eyelid levator muscle caused by the blepharospasm were at least partly responsible [ncbi.nlm.nih.gov]

RESULTS: Associated ophthalmologic findings showed that amblyopia, strabismus, wound discharge and knot dehiscence problems were present in 36.6%, 27.3%, 8.5% and 8.5% of [ncbi.nlm.nih.gov]

The most common form of blepharoptosis presents in the elderly and is due to the dehiscence of the levator aponeurosis insertion. [visualdx.com]

Zenker Diverticulum

Zenker's Diverticulum is a posterior pulsion diverticulum which occurs through the Killian's Dehiscence. [medicowesome.com]

[…] pharyngeal pouch, is a posterior outpouching of the hypopharynx, just proximal to the upper esophageal sphincter through a weakness in the muscle layer called the Killian dehiscence [radiopaedia.org]

Discussion Zenker diverticulum occurs in 0.1% of 20,000 routine barium examinations. 4 The ZD pouches posteriorly through the dehiscence of Killian between the thyropharyngeus [anesthesiology.pubs.asahq.org]

Prolapse

The former approach is more logical since it directly addresses the dehiscence of the levator aponeurosis. [reviewofophthalmology.com]

Three patients (five eyes) with ptosis resulting from levator dehiscence due to long-term rigid gas permeable contact lens wear for keratoconus, phthisis bulbi, and myopathy [ncbi.nlm.nih.gov]

Aponeurotic ptosis is a disinsertion or dehiscence of the levator aponeurosis from its normal position on the anterior surface of tarsus. [reviewofophthalmology.com]

Bronchopleural Fistula

One patient had an anastomotic dehiscence after right tracheal sleeve pneumonectomy. A chest tube showed the absence of empyema in all cases. [ncbi.nlm.nih.gov]

We report a simple and successful technique, using azygous vein flaps, to repair an intraoperative BPF associated to a small bronchial dehiscence occurred after a right pneumonectomy [ncbi.nlm.nih.gov]

Endoscopic management is now widely employed for limited, small bronchial dehiscence while pneumoperitoneum has surprisingly never been reported for this purpose, despite [ncbi.nlm.nih.gov]

Prosthetic Valve Endocarditis

In 11 cases (19%), there was indication for surgery based on TEE but not on CT findings [non-drained abscess (n 5), prosthetic valve dehiscence (n 4), large vegetation (n [ncbi.nlm.nih.gov]

Described is an unusual case report of a 57-year-old man who had early aortic PVE due to Corynebacterium Jeikeium infection complicated by dehiscence of the prosthesis, complete [ncbi.nlm.nih.gov]

valve dehiscence or abscess formation. Therefore, echocardiography as a diagnostic tool often remains initially inconclusive. [ncbi.nlm.nih.gov]

Incisional Hernia

Wound infection was a risk factor for both wound dehiscence and incisional hernia. [ncbi.nlm.nih.gov]

Peter's University Hospital, New Brunswick, New Jersey, USA. mneffyhs@aol.com Abstract Postoperative wound dehiscence is a difficult problem for the general surgeon. [ncbi.nlm.nih.gov]

The patient developed a wound dehiscence and mesh infection, successfully treated with negative pressure therapy followed by a free ALT perforator flap. [ncbi.nlm.nih.gov]

Labyrinthine Fistula

Other complications were encountered in 18 (78%) of the 23 patients with an LF: 5 (22%) encephaloceles, 9 (39%) dehiscences of the tegmen, 12 (52%) patients with facial nerve [ncbi.nlm.nih.gov]

Oval and Round windows work together to regulate hearing and balance - mechanical wave is transducer into neural activity and sound is perceived - dehiscence is created [quizlet.com]

This is caused by a rupture of the round window or oval window ligaments separating the inner and middle ear.Another type of labyrinthine fistula is a semicircular canal dehiscence [en.wikipedia.org]

Mediastinitis

Sternal dehiscence. Abstract Introduction and objectives. [revespcardiol.org]

Group B consisted of patients classified as having sternal dehiscence without infection, i.e. patients with inadequate sternal union, but absence of infection. [revespcardiol.org]

They comprise sternal dehiscence, deep sternal wound infections and mediastinitis, which will be treated as varying expressions of a singular pathology for reasons explained [ncbi.nlm.nih.gov]

Pseudoexfoliation Syndrome

6.7%, no other complications were seen in this technique, whereas in horizontal chopping, 13.3% had pupil constriction, 6.7% had difficulty in chopping, 3.3% had zonular dehiscence [ncbi.nlm.nih.gov]

Hospital, Uttar Pradesh Kirti Jain Department of Ophthalmology, Chhatrapati Shivaji Subharti Hospital, Uttar Pradesh Keywords: pseudo exfoliation, phacoemulsification, zonular dehiscence [nepjol.info]

[…] surgery and posterior chamber intraocular lens implantation in patients with PEX syndrome is associated with a higher rate of intraoperative complications such as zonular dehiscence [semanticscholar.org]

Diffuse Serous Labyrinthitis

Arriaga, MD bring you seven new chapters on the hot topics of Cartilage Tympanoplasty, Reversible Canal Wall Down Mastiodectomy, Superior Semicircular Canal Dehiscence Syndrome [books.google.de]

[…] erosion - presence of a congenital dehiscence (eg: dehiscent facial canal) or a preformed pathway (eg: skull base fracture) - obstruction of drainage eg: by a polyp - low [quizlet.com]

Bacterial infections of the middle ear or mastoid most commonly spread to the labyrinth through a dehiscent horizontal semicircular canal. [7] Usually, the dehiscence is the [emedicine.medscape.com]

Osteoradionecrosis of the Jaw

If wound dehiscence occurs, advance patients to stage III. [emedicine.medscape.com]

Stage I disease represents small, superficial, localized bone resorption with cutaneous or mucosal dehiscence. [ccij-online.org]

In contrast, those patients showing evidence of wound dehiscence with bone exposure advance to stage III. [utmb.edu]

Pterygium

Documented complications include wound dehiscence, Tenon's granuloma, inclusion cysts, graft oedema, and corneoscleral dellen. [ncbi.nlm.nih.gov]

When performing pterygium excision with conjunctival coverage of the sclera, a close follow-upis recommended to rule out wound dehiscence and SD, even when surgical wound [ncbi.nlm.nih.gov]

Surgery was uneventful; however, at the week 2 postoperative review, there was conjunctival graft dehiscence with melting of the graft and underlying sclera. [ncbi.nlm.nih.gov]

Right-Sided Bacterial Endocarditis

[…] against infective endocarditis if regurgitation jet is not present Other possible echocardiographic findings: valvular stenosis vegetations may, less commonly, obstruct valves dehiscence [radiopaedia.org]

In patients with prosthetic valves, surgery may be required when TEE shows valve dehiscence on a paravalvular abscess, when valve dysfunction precipitates heart failure, when [merckmanuals.com]

[…] supporting structures, or in the path of regurgitant jets, or on implanted material in the absence of an alternative anatomic explanation; intracardiac abscess; new partial dehiscence [aafp.org]

Labyrinthine Concussion

[…] endolymphatic hydrops, and because a differential diagnosis can be difficult, the evaluation may include testing for a post-traumatic perilymphatic fistula, superior canal dehiscence [journals.lww.com]

Entropion

In the entropion group, 60% of the lids had total and 35% partial dehiscence of the retractor, whereas in the BCC group, dehiscence was found in only 45% of the lids. [ncbi.nlm.nih.gov]

All had dehiscence of the capsulopalpebral fascia. Spastic entropion is an evolving stage toward permanent entropion. [ncbi.nlm.nih.gov]

Ptosis may develop after cataract surgery because of a dehiscence of the levator aponeurosis. [ncbi.nlm.nih.gov]

Ventral Hernia

Wound dehiscence occurred in four (12.5 %) patients and was treated conservatively. Only three small seromas not requiring treatment were observed. [ncbi.nlm.nih.gov]

There was one (2%) surgical site occurrence in the non-Ioban group (one superficial wound dehiscence). [ncbi.nlm.nih.gov]

Early wound complications included subcutaneous wound infection (18), deep wound infection (17), dehiscence (13), fistula (2), and suture sinus (2). [ncbi.nlm.nih.gov]

Traction Diverticulum of the Esophagus

Diverticula Zenker’s Diverticulum Midesophageal Diverticulum Epiphrenic Diverticulum · Pharyngoesophageal diverticulum · Occurs in older women · Posteriorly at site of Killian's dehiscence [learningradiology.com]

This phenomenon is also known as Killian's dehiscence. [med-ed.virginia.edu]

The dehiscence of Killian is located between the oblique and horizontal cricopharyngeus fibres of the inferior pharyngeal constrictor, through which the diverticulum protrudes [explainmedicine.com]

Acute Mediastinitis

55%), free gas bubbles in the mediastinum (57.5%), mediastinal lymph nodes (35%), pericardial effusions (27.5%), pleural effusions (85%), lung infiltrates (35%), sternal dehiscence [ncbi.nlm.nih.gov]

From March 1993 until December 1999, 32 patients (6 female/26 male), 0.5% of the total sternotomy population, were operated for mediastinitis, defined as wound and sternal dehiscence [ncbi.nlm.nih.gov]

Sternal dehiscence in patients with and without mediastinitis. J Thorac Imaging 2001;16:106–110 [6] Catarino PA, Westaby S. [emdocs.net]

Bezold's Abscess

Arriaga, MD bring you seven new chapters on the hot topics of Cartilage Tympanoplasty, Reversible Canal Wall Down Mastiodectomy, Superior Semicircular Canal Dehiscence Syndrome [books.google.com]

There was a bony dehiscence seen at the facial canal. Surgicel was used to cover the exposed portion of the facial nerve. [ncbi.nlm.nih.gov]

This is usually due to a dehiscent facial nerve canal in the middle ear allowing the infection to affect the nerve itself. [entsho.com]

Pancreatic Fistula

Both computed tomography and fistulography demonstrated a pancreatic fistula derived from dehiscence of the pancreatico-jejunal anastomosis. [ncbi.nlm.nih.gov]

RESULTS: Four patients suffered from a grade C mixed POPF discharging into a single dehiscent site; 1 patient was found with two dehiscent points in all (pancreatic anastomosis [ncbi.nlm.nih.gov]

The treatment yielded mostly satisfactory results, though one patient incurred postoperative wound dehiscence, which was healed with conservative measures. [ncbi.nlm.nih.gov]