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The need in dural graft suturing in Chiari I malformation decompression: A prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials.

ABSTRACT: BACKGROUND:This study compared the use of two commonly utilized dural closure techniques used in augmentation duraplasty for Chiari malformation I (CM I) and evaluated their efficacy and outcome in terms of quality of life assessments. METHODS:This prospective randomized study compared sutureless (DuraGen) and suturable (Dura-Guard) techniques in CM I decompression. Clinical parameters, cost analysis, and SF-36 Quality of Life Questionnaire (QLQ) were utilized to assess outcome. RESULTS:Thirty-four patients were enrolled. Average age was 38.7 ± 12.2 years (mean ± SD (Standard Deviation)) and 82% of patients were female. Sixteen patients received DuraGen and 18 Dura-Guard. Age and gender were similar among groups. Postoperative complications did not differ between groups. Operative cost and time were less for DuraGen, whereas hospital stay was less with Dura-Guard, neither was statistically significant. Average QLQ scores at months 1, 2, and 3 improved in both groups. Dura-Guard patients showed greater improvement in quality of life at month 2 (P < 0.05) but groups did not differ at final survey. All patient's physical health (P < 0.005) and function (P < 0.005) were significantly improved. Outcome did not differ between groups and all patients showed significant improvement (P < 0.05). CONCLUSION:Both techniques are effective in reaching the goals of decompressive surgery for CM I and did not differ in quality of life at final survey. All patients showed significant improvement in physical function, physical health, and outcome following surgery. With all variables being equal the choice of duraplasty material may be based upon surgeon's preference.

SUBMITTER: Williams LE

PROVIDER: S-EPMC3604813 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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The need in dural graft suturing in Chiari I malformation decompression: A prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials.

Williams Leena E LE Vannemreddy Prasad S PS Watson Karriem S KS Slavin Konstantin V KV

Surgical neurology international 20130227

<h4>Background</h4>This study compared the use of two commonly utilized dural closure techniques used in augmentation duraplasty for Chiari malformation I (CM I) and evaluated their efficacy and outcome in terms of quality of life assessments.<h4>Methods</h4>This prospective randomized study compared sutureless (DuraGen) and suturable (Dura-Guard) techniques in CM I decompression. Clinical parameters, cost analysis, and SF-36 Quality of Life Questionnaire (QLQ) were utilized to assess outcome.<h ...[more]

PMID: 23532455

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Project description:OBJECT:Chiari malformation Type I (CM-I) is characterized by hindbrain deformity. We investigated the effects of craniocervical decompression surgery on the anatomical features of hindbrain deformity with a prospective MRI study of patients with CM-I. METHODS:A prospective longitudinal study was conducted in 48 patients with CM-I (39 with syringomyelia) treated with craniocervical decompression. Clinical examinations and cervical MRI were performed before surgery and 1 week, 3-6 months, and annually after surgery. Hindbrain deformity was defined by tonsillar ectopia, pointed cerebellar tonsils, and/or cervicomedullary protuberance. The length of the clivus, basiocciput (sphenooccipital synchondrosis to basion), supraocciput (internal occipital protuberance to opisthion), and anteroposterior (AP) width of CSF pathways at the foramen magnum were measured and compared with those from 18 healthy volunteers (control group). RESULTS:Before surgery, the patients' posterior fossa bones were short and their CSF pathways were narrow. All patients had tonsillar ectopia (mean [± SD] 12.3 ± 5.1 mm; normal 0.3 ± 1.0). The majority of patients had pointed tonsils and more than two-thirds exhibited a cervicomedullary protuberance. Clivus and basiocciput lengths were significantly shorter than the values obtained in the control group. However, the supraocciput length did not differ significantly from control measurements. The mean bulbopontine sulcus distance superior to the basion was 9.5 ± 2.6 mm (vs 13.6 ± 2.8 mm in controls; p < 0.0001). The AP widths of the CSF pathways at the level of the foramen magnum were significantly narrowed. After surgery, CSF pathways significantly expanded both ventrally and dorsally. By 3-6 months after surgery, pointed tonsils became round, cervicomedullary protuberance disappeared, and tonsillar ectopia diminished by 51% (to 6.0 ± 3.3 mm; p < 0.0001). CONCLUSIONS:The cerebellar tonsils and brainstem assumed a normal appearance within 6 months after craniocervical decompression. These findings support the concept that the CM-I is not a congenital malformation of the neural elements but rather an acquired malformation that arises from pulsatile impaction of the cerebellar tonsils into the foramen magnum. Clinical trial registration no.: NCT00001327.

Project description:BackgroundTreatment of Chiari malformation can include suboccipital decompression with resection of one cerebellar tonsil. Its effects on ocular motor and cerebellar function have not yet been systematically examined.ObjectiveTo investigate whether decompression, including resection of one cerebellar tonsil, leads to ocular motor, vestibular, or cerebellar deficits.Patients and methodsTen patients with Chiari malformation type 1 were systematically examined before and after (1 week and 3 months) suboccipital decompression with unilateral tonsillectomy. The work-up included a neurological and neuro-ophthalmological examination, vestibular function, posturography, and subjective scales. Cerebellar function was evaluated by ataxia rating scales.ResultsDecompression led to a major subjective improvement 3 months after surgery, especially regarding headache (5/5 patients), hyp-/dysesthesia (5/5 patients), ataxia of the upper limbs (4/5 patients), and paresis of the triceps and interosseal muscles (2/2 patients). Ocular motor disturbances before decompression were detected in 50% of the patients. These symptoms improved after surgery, but five patients had new persisting mild ocular motor deficits 3 months after decompression with unilateral tonsillectomy (i.e., smooth pursuit deficits, horizontally gaze-evoked nystagmus, rebound, and downbeat nystagmus) without any subjective complaints. Impaired vestibular (horizontal canal, saccular, and utricular) function improved in five of seven patients with impaired function before surgery. Posturographic measurements after surgery did not change significantly.ConclusionDecompression, including resection of one cerebellar tonsil, leads to an effective relief of patients' preoperative complaints. It is a safe procedure when performed with the help of intraoperative electrophysiological monitoring, although mild ocular motor dysfunctions were seen in half of the patients, which were fortunately asymptomatic.

Project description:  Pseudotumor cerebri (PTC) patients exhibit clear clinical signs and symptoms of higher intracranial pressure (ICP) without ventricular enlargement or mass lesions. The clinical picture of patients with PTC can sometimes be similar to that of Chiari Malformation type I (CMI). There is some evidence that Chiari I malformation and PTC may coexist, which raises the question of whether PTC is an idiopathic disease or a complication of posterior decompression surgery-treatment of choice for Chiari I malformation.A retrospective review of electronic medical records of patients diagnosed with PTC at the University of Toledo Medical Center (UTMC) was performed. The objective was to determine whether PTC patients had a concurrent diagnosis of Chiari I malformation and whether the diagnosis of PTC occurred before or after posterior decompression surgery. Out of the 8 eligible patient medical records reviewed, 5 patients diagnosed with PTC had undergone posterior decompression surgery for Chiari I malformation at anywhere from several days to three years prior to being diagnosed with PTC. The diagnosis of PTC was based on temporary symptomatic relief following lumbar puncture which also showed elevated CSF opening pressures. Finally, a VP shunt was placed in each of the 5 patients to relieve the elevated intracranial pressure which resulted in the complete resolution of the patients' symptoms.Our study focuses on patients who were diagnosed with and treated for CMI then reported back to the clinic within several days to three years complaining of symptoms of headache. Upon re-presenting to the clinic, a CSF flow study was performed which showed normal flow of CSF. Then, these patients underwent a lumbar puncture which demonstrated an elevated opening pressure (and ICP) and a temporary relief of the headache with lumbar drainage. A VP shunt was placed for each patient to treat for PTC, and the patients' headaches were relieved.This study suggests that the presence of Chiari I malformation in a patient conceals the symptoms of PTC which may become apparent following posterior decompression surgery. Other possibilities could be that the patients are misdiagnosed for Chiari I malformation when they are in fact suffering from PTC, or that PTC is a complication of surgery.

Project description:ImportanceSutureless gastroschisis repair offers an alternative to the traditional sutured method and has been associated with decreased intubation time. Published study results are inconsistent regarding the advantages of sutureless closure.ObjectiveTo compare the clinical outcomes of sutureless and sutured gastroschisis repair.Design, setting, and participantsA single-center cohort review was performed of all consecutive patients (n = 97) who underwent gastroschisis repair from February 1, 2007, to April 30, 2017, at the University of California, San Francisco. Patients' medical records were evaluated for clinical characteristics and outcomes. Cases with incomplete data during initial hospitalization were excluded.Main outcomes and measuresLength of hospital stay, time to full enteral feeds, total parenteral nutrition duration, days requiring intravenous analgesia, days intubated, wound infection rate, antibiotic treatment duration, rate of umbilical hernias that required an operation, and readmission rate.ResultsIn total, 97 patients (47 [48%] were female and 50 [52%] were male with a mean [SD] age of 2.8 [2.8] days) underwent gastroschisis repair, of which 7 were excluded for incomplete medical record. Of the 90 patients included in the study, 50 (56%) underwent sutured closure and 40 (44%) underwent sutureless closure. No statistical difference was found between the sutured and sutureless groups in length of hospital stay (mean [SD] days, 43.9 [40.4] vs 36.7 [21.2]; P = .71), time to full enteral feeds (mean [SD] days, 31.4 [20.2] vs 27.9 [17.3]; P = .22), total parenteral nutrition duration (mean [SD] days, 33.5 [29.8] vs 27.4 [18.2]; P = .23), wound infection rates (14 [28%] vs 10 [25%]; P = .81), and readmission rates (5 [10%] vs 7 [18%]; P = .36). The sutureless group, compared with the sutured group, had substantially fewer days receiving antibiotics (mean [SD], 7.2 [6.4] vs 12.4 [13.2]; P = .003), fewer days intubated (mean [SD], 2.8 [3.3] vs 6.8 [1.3]; P = .001), fewer days receiving intravenous analgesia (mean [SD], 4.2 [4.0] vs 7.1 [4.5]; P = .003), and fewer patients that required silo reduction (25 [63%] vs 48 [96%]; P < .001). Sutureless closures, compared with the sutured technique, had considerably more umbilical hernias requiring surgical repair (5 [13%] vs 0; P = .02).Conclusions and relevanceSutureless repair of gastroschisis appears to be associated with a statistically significant reduction in mechanical ventilation duration and pain medication requirements but may increase umbilical hernia risk. Multicenter randomized clinical trials are necessary to determine the true advantages of the sutureless approach.

Dataset Information

The need in dural graft suturing in Chiari I malformation decompression: A prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials.

Publications

The need in dural graft suturing in Chiari I malformation decompression: A prospective, single-blind, randomized trial comparing sutured and sutureless duraplasty materials.

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