Self-Trephination in Cranial Excoriation Disorder.

BACKGROUND AND IMPORTANCE: Trephination is a procedure in which a small hole is made in the skull. Rare cases of self-trephination by individuals seeking medical benefit have been reported. Excoriation disorder is a compulsive skin-picking condition in which an individual self-inflicts cutaneous lesions. Left untreated, severe excoriation disorder can pose significant health risks. CLINICAL PRESENTATION: Here, we describe 5 patients who presented with self-trephination due to a severe form of compulsive cranial excoriation at 2 neighboring academic medical centers over a 4-year period. We review the clinical presentation of self-trephination in cranial excoriation disorder and associated risk factors, surgical and nonsurgical interventions, complications of the disease, treatments, and mortality. Defining clinical characteristics include repetitive self-induced destruction of the scalp and skull with entry into the intracranial compartment, frequent psychiatric comorbidities, infection or injury of the brain with consequent neurological morbidity or mortality, and frequent treatment failures because of poor adherence. CONCLUSION: Self-trephination in cranial excoriation disorder is a severe neuropsychological disorder and neurosurgical emergency that exposes the brain and is often life-threatening. Appropriate therapy requires antibiotics, surgical debridement and repair of the wound, and concomitant effective psychiatric management of the underlying compulsion, including the use of antidepressants and behavioral therapy.

Diffusely invasive supratentorial rosette-forming glioneuronal tumor: illustrative case.

BACKGROUND: Rosette-forming glioneuronal tumors (RGNTs) are rare tumors composed of mixed glial and neurocytic components. Most lesions are confined to the posterior fossa, especially in the region of the fourth ventricle, in young adults. In few instances, diffuse involvement of the supratentorial region is identified, thereby creating significant challenges in diagnosis, surgical intervention, and prognostication. OBSERVATIONS: The authors present a 23-year-old female with chronic headaches, papilledema, and hydrocephalus who underwent radiographic evaluation revealing obstructive hydrocephalus and diffuse supratentorial enhancing and nonenhancing cystic and nodular lesions. The patient underwent a right frontal craniotomy and septostomy. An exophytic nonenhancing right frontal horn lesion was resected, and an enhancing third-ventricular lesion was biopsied. Final pathology of both of the lesions sampled was consistent with RGNT. Next-generation sequencing demonstrated tumor alterations in the FGFR-1 and PIK3CA genes. Targeted therapy with the FGFR inhibitor erdafitinib demonstrated a partial remission. LESSONS: Diffuse supratentorial spread of RGNT is an extremely rare presentation of an already uncommon pathology. In some cases, gross-total resection may not be feasible. Goals of surgery include acquiring tissue for diagnosis, maximizing safe resection, and treating any associated hydrocephalus. FGFR inhibitors may be of benefit in cases of disease progression.

Triple therapy versus dual-antiplatelet therapy for dolichoectatic vertebrobasilar fusiform aneurysms treated with flow diverters.

BACKGROUND: Dolichoectatic vertebrobasilar fusiform aneurysms (DVBFAs) have poor natural history when left untreated and high morbimortality when treated with microsurgery. Flow diversion (FD) with dual-antiplatelet therapy (DAPT) is feasible but carries high risk of perforator occlusion and progression of brainstem compression. Elaborate antithrombotic strategies are needed to preserve perforator patency while vessel remodeling occurs. We compared triple therapy (TT (DAPT plus oral anticoagulation)) and DAPT alone in patients with DVBFAs treated with FD. METHODS: Retrospective comparison of DAPT and TT in patients with DVBFAs treated with FD at eight US centers. RESULTS: The groups (DAPT=13, TT=14) were similar in age, sex, clinical presentation, baseline disability, and aneurysm characteristics. Radial access use was significantly higher in the TT group (71.4% vs 15.3%; P=0.006). Median number of flow diverters and adjunctive coiling use were non-different between groups. Acute ischemic stroke rate during the oral anticoagulation period was lower in the TT group than the DAPT group (7.1% vs 30.8%; P=0.167). Modified Rankin Scale score decline was significantly lower in the TT group (7.1% vs 69.2%; P=0.001). Overall rates of hemorrhagic complications (TT, 28.6% vs DAPT, 7.7%; P=0.162) and complete occlusion (TT, 25% vs DAPT, 54.4%; P=0.213) were non-different between the groups. Rate of moderate-to-severe disability at last follow-up was significantly lower in the TT group (21.4% vs 76.9%; P=0.007). CONCLUSIONS: Patients with DVBFAs treated with FD in the TT group had fewer ischemic strokes, less symptom progression, and overall better outcomes at last follow-up than similar patients in the DAPT group.

Bacterial translocation as a cause of ventriculoperitoneal shunt infection: A case report.

Bacterial translocation as a mechanism of distal catheter infection may play a larger role in ventriculoperitoneal shunt infections than previously recognized.

Ventriculogallbladder Shunt: Percutaneous Transhepatic Placement of the Distal Catheter.

BACKGROUND: Ventriculogallbladder (VGB) shunts are currently placed as a salvage procedure in treatment of hydrocephalus when all other options are exhausted. Although VGB shunts work well when successfully implanted, they are still rarely used because of the technical challenges with the traditional surgical technique. OBJECTIVE: To implant VGB shunts using a minimally invasive technique that is safer and less technically challenging. METHODS: We discussed our utilization of a percutaneous transhepatic approach to placement of the distal catheter into the gallbladder as a new technique that offers a solution to the established but surgically demanding current approach. We presented a complex patient with multiple failed shunts who underwent placement of a VGB shunt. RESULTS: The shunt was successfully placed and did not incur any complications or require any revisions in 5 yr. CONCLUSION: Given the safety and ease of this minimally invasive approach, we believe percutaneous transhepatic approach in VGB shunts should be considered as a reasonable option in patients with complex hydrocephalus.

Spontaneous Propionibacterium Acnes abscess with intraventricular rupture in an immunocompetent adult without prior neurosurgical intervention.

Previously viewed as a culture contaminant, Propionibacterium Acnes can cause infection following neurosurgical intervention. Its role in brain abscess in the immunocompetent, surgically naïve population has been infrequently reported. Herein, we describe an immunocompetent 55-year-old man with no risk factors found to have a thalamic abscess with intraventricular rupture.

Evidence for increased intraabdominal pressure as a cause of recurrent migration of the distal catheter of a ventriculoperitoneal shunt: illustrative case.

BACKGROUND: Placement of a ventriculoperitoneal (VP) shunt is an effective treatment for several disorders of cerebrospinal fluid flow. A rare complication involves postoperative migration of the distal catheter out of the intraperitoneal compartment and into the subcutaneous space. Several theories attempt to explain this phenomenon, but the mechanism remains unclear. OBSERVATIONS: The authors report the case of a 37-year-old nonobese woman who underwent placement of a VP shunt for idiopathic intracranial hypertension. Postoperatively, the distal catheter of the VP shunt migrated into the subcutaneous space on three occasions despite the use of multiple surgical techniques, including open and laparoscopic methods of abdominal catheter placement. Notably, the patient repeatedly displayed radiographic evidence of chronic bowel distention consistent with increased intraperitoneal pressure. LESSONS: In this case, the mechanism of catheter migration into the subcutaneous space did not appear to be caused by pulling of the catheter from above but rather by expulsion of the catheter from the peritoneum. Space in the subcutaneous tissues caused by open surgical placement of the catheter was permissive for this process. Patients with chronic increased intraabdominal pressure, such as that caused by bowel distention, obesity, or Valsalva maneuvers, may be at increased risk for distal catheter migration.