Contemporary Practices and Complications of Surgery for Thoracic Outlet Syndrome in the United States

BACKGROUND

Thoracic outlet syndrome (TOS) surgery is relatively rare and controversial, given the challenges in diagnosis as well as wide variation in symptomatic and functional recovery. Our aims were to measure trends in utilization of TOS surgery, complications, and mortality rates in a nationally representative cohort and compare higher versus lower volume centers.

METHODS

The National Inpatient Sample was queried using International Classification of Diseases, Ninth Revision, codes for rib resection and scalenectomy paired with axillo-subclavian aneurysm (arterial [aTOS]), subclavian deep vein thrombosis (venous [vTOS]), or brachial plexus lesions (neurogenic [nTOS]). Basic descriptive statistics, nonparametric tests for trend, and multivariable hierarchical regression models with random intercept for center were used to compare outcomes for TOS types, trends over time, and higher and lower volume hospitals, respectively.

RESULTS

There were 3,547 TOS operations (for an estimated 18,210 TOS operations nationally) performed between 2010 and 2015 (89.2% nTOS, 9.9% vTOS, and 0.9% aTOS) with annual case volume increasing significantly over time (P = 0.03). Higher volume centers (≥10 cases per year) represented 5.2% of hospitals and 37.0% of cases, and these centers achieved significantly lower overall major complication (defined as neurologic injury, arterial or venous injury, vascular graft complication, pneumothorax, hemorrhage/hematoma, or lymphatic leak) rates (adjusted odds ratio [OR] 0.71 [95% confidence interval 0.52-0.98]; P = 0.04], but no difference in neurologic complications such as brachial plexus injury (aOR 0.69 [0.20-2.43]; P = 0.56) or vascular injuries/graft complications (aOR 0.71 [0.0.33-1.54]; P = 0.39). Overall mortality was 0.6%, neurologic injury was rare (0.3%), and the proportion of patients experiencing complications decreased over time (P = 0.03). However, vTOS and aTOS had >2.5 times the odds of major complication compared with nTOS (OR 2.68 [1.88-3.82] and aOR 4.26 [1.78-10.17]; P < 0.001), and ∼10 times the odds of a vascular complication (aOR 10.37 [5.33-20.19] and aOR 12.93 [3.54-47.37]; P < 0.001], respectively. As the number of complications decreased, average hospital charges also significantly decreased over time (P < 0.001). Total hospital charges were on average higher when surgery was performed in lower volume centers (<10 cases per year) compared with higher volume centers (mean $65,634 [standard deviation 98,796] vs. $45,850 [59,285]; P < 0.001).

CONCLUSIONS

The annual number of TOS operations has increased in the United States from 2010 to 2015, whereas complications and average hospital charges have decreased. Mortality and neurologic injury remain rare. Higher volume centers delivered higher value care: less or similar operative morbidity with lower total hospital charges.

How much does decompressive laparotomy reduce the mortality rate in primary abdominal compartment syndrome?: A single-center prospective study on 66 patients

Contribution of decompressive laparotomy within the framework of the complex therapeutic algorithm of abdominal compartment syndrome (ACS) is cited with an extremely heterogeneous percentage in terms of survival. The purpose of this study was to present new data regarding contribution of each therapeutic step toward decreasing the mortality of this syndrome.This is a longitudinal prospective study including 134 patients with risk factors for ACS. The intra-abdominal pressure was measured every hour indirectly based on transvesical approach and the appearance of organ dysfunction. Specific therapy for ACS was based on the 2013 World Society of Abdominal Compartment Syndrome guidelines, which include laparotomy decompression. Management of the temporarily open abdomen included an assisted vacuum wound therapy.Of 134 patients, 66 developed ACS. The average intra-abdominal pressure significantly decreased after therapy and decompression surgery. The overall rate of mortality was 27.3% with statistical significance in necrotizing infected pancreatitis. Surgical decompression performed within the first 24 hours after the onset of ACS had a protective role against mortality (odds ratio <1). The average time after which laparotomy decompression was performed was 16.23 hours. The complications occurred during TAC were 2 wound suppurations and 1 intestinal obstruction. Wound suppurations evolved favorably by using vacuum wound-assisted therapy associated with the general treatment, whereas for occlusion, resurgery was performed after which adhesions dissolved. The final closure of the abdomen was performed at a mean of 11.7 days (min. = 9, max. = 14). The closure type was primary suture of the musculoaponeurotic edges in 4 cases, and the use of dual mesh in the other 11 cases.The highest mortality rate in the study group was registered in patients with necrotizing pancreatitis and the lowest in trauma group. Surgical decompression within the framework of the complex algorithm treatment of ACS contributed to the reduction of mortality by 8.7%. It is extremely important that the elapsed time since the initiation of the ACS until the surgical decompression is minimal (under 24 hours).

Comparison of patency and cost-effectiveness of self-expandable metal and plastic stents used for malignant biliary strictures: a Polish single-center study

INTRODUCTION

Most patients with malignant biliary obstruction are suited only for palliation by endoscopic drainage with plastic stents (PS) or self-expandable metal stents (SEMS).

OBJECTIVE

To compare the clinical outcome and costs of biliary stenting with SEMS and PS in patients with malignant biliary strictures.

PATIENTS AND METHODS

A total of 114 patients with malignant jaundice who underwent 376 endoscopic retrograde biliary drainage (ERBD) were studied.

RESULTS

ERBD with the placement of PS was performed in 80 patients, with one-step SEMS in 20 patients and two-step SEMS in 14 patients. Significantly fewer ERBD interventions were performed in patients with one-step SEMS than PS or the two-step SEMS technique (2.0±1.12 vs. 3.1±1.7 or 5.7±2.1, respectively, P<0.0001). The median hospitalization duration per procedure was similar for the three groups of patients. The patients' survival time was the longest in the two-step SEMS group in comparison with the one-step SEMS and PS groups (596±270 vs. 276±141 or 208±219 days, P<0.001). Overall median time to recurrent biliary obstruction was 89.3±159 days for PS and 120.6±101 days for SEMS (P=0.01). The total cost of hospitalization with ERBD was higher for two-step SEMS than for one-step SEMS or PS (1448±312, 1152±135 and 977±156&OV0556;, P<0.0001). However, the estimated annual cost of medical care for one-step SEMS was higher than that for the two-step SEMS or PS groups (4618, 4079, and 3995&OV0556;, respectively).

CONCLUSION

Biliary decompression by SEMS is associated with longer patency and reduced number of auxiliary procedures; however, repeated PS insertions still remain the most cost-effective strategy.

Decompressive laparotomy for abdominal compartment syndrome

Background

The effect of decompressive laparotomy on outcomes in patients with abdominal compartment syndrome has been poorly investigated. The aim of this prospective cohort study was to describe the effect of decompressive laparotomy for abdominal compartment syndrome on organ function and outcomes.

Methods

This was a prospective cohort study in adult patients who underwent decompressive laparotomy for abdominal compartment syndrome. The primary endpoints were 28‐day and 1‐year all‐cause mortality. Changes in intra‐abdominal pressure (IAP) and organ function, and laparotomy‐related morbidity were secondary endpoints.

Results

Thirty‐three patients were included in the study (20 men). Twenty‐seven patients were surgical admissions treated for abdominal conditions. The median (i.q.r.) Acute Physiology And Chronic Health Evaluation (APACHE) II score was 26 (20–32). Median IAP was 23 (21–27) mmHg before decompressive laparotomy, decreasing to 12 (9–15), 13 (8–17), 12 (9–15) and 12 (9–14) mmHg after 2, 6, 24 and 72 h. Decompressive laparotomy significantly improved oxygenation and urinary output. Survivors showed improvement in organ function scores, but non‐survivors did not. Fourteen complications related to the procedure developed in eight of the 33 patients. The abdomen could be closed primarily in 18 patients. The overall 28‐day mortality rate was 36 per cent (12 of 33), which increased to 55 per cent (18 patients) at 1 year. Non‐survivors were no different from survivors, except that they tended to be older and on mechanical ventilation.

Conclusion

Decompressive laparotomy reduced IAP and had an immediate effect on organ function. It should be considered in patients with abdominal compartment syndrome.

Improves organ function

Staged surgery after colonic decompression may be safer for the treatment of obstructive left-sided colorectal cancer in a non-specialized hospital

BACKGROUND/AIMS

The management for the obstructive left sided colorectal cancer is still controversial.

METHODOLOGY

A retrospective study was performed on 249 consecutive patients who underwent surgical intervention for left sided colorectal cancer in our hospital. Among 36 patients who had colonic obstruction, 25 patients received tumor resection while the rest of the patients received palliative stoma creation. Clinical characteristics and outcome following tumor resection was compared between patients with and without colonic obstruction.

RESULTS

Prior to tumor resection, all patients received colonic decompression. Flowingly, 20 patients received staged surgeries and five patients underwent one stage surgery, with three of the latter requiring reoperation due to anastomotic leakage. The five-year overall survival rate for patients following tumor resection was 75.5 % and 69.1 % for those with and without colonic obstruction respectively. Log-rank test showed no significant difference in overall survival between the two groups (p = 0.91).

CONCLUSIONS

Onestage surgery for patients with obstructive colorectal cancer in our hospital was associated with frequent anastomotic leakage. Colonic obstruction itself may not be a poor prognostic factor when decompression preceded surgical resection.

Appropriate treatment of acute sigmoid volvulus in the emergency setting

AIM: To investigate an appropriate strategy for the treatment of patients with acute sigmoid volvulus in the emergency setting.

METHODS: A retrospective review of 28 patients with acute sigmoid volvulus treated in the Department of Colorectal Surgery, Changhai Hospital, Shanghai from January 2001 to July 2012 was performed. Following the diagnosis of acute sigmoid volvulus, an initial colonoscopic approach was adopted if there was no evidence of diffuse peritonitis.

RESULTS: Of the 28 patients with acute sigmoid volvulus, 19 (67.9%) were male and 9 (32.1%) were female. Their mean age was 63.1 ± 22.9 years (range, 21-93 years). Six (21.4%) patients had a history of abdominal surgery, and 17 (60.7%) patients had a history of constipation. Abdominal radiography or computed tomography was performed in all patients. Colonoscopic detorsion was performed in all 28 patients with a success rate of 92.8% (26/28). Emergency surgery was required in the other two patients. Of the 26 successfully treated patients, seven (26.9%) had recurrent volvulus.

CONCLUSION: Colonoscopy is the primary emergency treatment of choice in uncomplicated acute sigmoid volvulus. Emergency surgery is only for patients in whom nonoperative treatment is unsuccessful, or in those with peritonitis.

A temporary self-expanding metallic stent for malignant colorectal obstruction

AIM: To investigate the clinical safety and efficacy of a temporary self-expanding metallic stent (SEMS) for malignant colorectal obstruction.

METHODS: From September 2007 to June 2012, 33 patients with malignant colorectal obstruction were treated with a temporary SEMS. The stent had a tubular configuration with a retrieval lasso attached inside the proximal end of the stent to facilitate its removal. The SEMS was removed one week after placement. Clinical examination, abdominal X-ray and a contrast study were prospectively performed and both initial and follow-up data before and at 1 d, 1 wk, and 1 mo, 3 mo, 6 mo and 12 mo after stent placement were obtained. Data collected on the technical and clinical success of the procedures, complications, need for reinsertion and survival were analyzed.

RESULTS: Stent placement and removal were technically successful in all patients with no procedure-related complications. Post-procedural complications included stent migration (n = 2) and anal pain (n = 2). Clinical success was achieved in 31 (93.9%) of 33 patients with resolution of bowel obstruction within 3 d of stent removal. Eleven of the 33 patients died 73.81 ± 23.66 d (range 42-121 d) after removal of the stent without colonic re-obstruction. Clinical success was achieved in another 8 patients without symptoms of obstruction during the follow-up period. Reinsertion of the stent was performed in the remaining 12 patients with re-obstruction after 84.33 ± 51.80 d of follow-up. The mean and median periods of relief of obstructive symptoms were 97.25 ± 9.56 d and 105 ± 17.43 d, respectively, using Kaplan-Meier analysis.

CONCLUSION: Temporary SEMS is a safe and effective approach in patients with malignant colorectal obstruction due to low complication rates and good medium-term outcomes.

Ten years single center experience in percutaneous transhepatic decompression of biliary tree in patients with malignant obstructive jaundice

BACKGROUND

Percutaneous transhepatic biliary drainage (PTBD) is a method of biliary tree decompression, applied as palliative treatment in patients with malignant biliary tree critical stenosis/obstruction, but also as a potentially curative treatment in patients with non-malignant biliary tree stenosis. Novel instrumentation dedicated to PTBD has been designed in recent years, which makes it possible to perform more advanced procedures in patients with severe extensive malignant biliary tree stenosis/obstruction.

OBJECTIVES

The first primary goal of the study was to compare both the rate and types of short- and long-term complications in patients who had undergone PTBD between 2000 and 2006 with patients treated between 2007 and 2011. The second primary goal of the study was to work out an original algorithm of efficient management in patients undergoing PTBD. An additional goal was to assess the efficacy of PTBD and the overall survival of the patients.

MATERIAL AND METHODS

One-hundred twenty-eight consecutive PTBD procedures performed between 2000 and 2006 in patients with malignant biliary jaundice were analyzed retrospectively. Similarly, retrospective analysis of 73 consecutive procedures in patients with malignant biliary jaundice performed between 2007 and 2011 was carried out. Subsequently, the results of both subsets were compared to each other. The PTBD procedure was guided fluoroscopy each time. PTBD involved external biliary drainage and/or stenting of the strictured/occluded segments of extra- and intrahepatic biliary ducts.

RESULTS

The analysis demonstrated a statistically significant decrease in the overall incidence of short- and long-term complications in patients undergoing PTBD in 2007-2011 in comparison to the subset treated in 2000-2006. Among the early complications, a significant decrease in sub- and pericapsular contrasted bile leaks was shown. The evaluation of long-term complications demonstrated lower incidence of the falling out of the draining catheter. The implementation of novel instrumentation made it possible to perform biliary stenting in 63.7% cases of common bile duct (CBD) obstruction (vs. 37.5% in procedures carried out in 2000-2006). However, no statistically significant difference in survival between the two analyzed subsets was demonstrated.

CONCLUSIONS

The analysis of rate and types of complications made it possible to establish authors own algorithm of management in different types of biliary obstructions and strictures. The modification of procedure technique, pos-tinterventional management and usage of the new generation of low-profile instrumentation for percutaneous access dedicated to PTBD has resulted in a significant reduction of the complication rate in the last 5 years. Higher frequency of CBD stenting improves the quality of life in this subset of patients.

Accuracy of prognostic scores in decision making and predicting outcomes in metastatic spine disease

INTRODUCTION

Management of metastatic spinal disease has changed significantly over the last few years. Different prognostic scores are used in clinical practice for predicting survival. The aim of this study was to assess the accuracy of prognostic scores and the role of delayed presentation in predicting the outcome in patients with metastatic spine disease.

METHODS

Retrospectively, four years of data were collected (2007-2010). Medical records review included type of tumour, duration of symptoms, expected survival and functional status. The Karnofsky performance score was used for functional assessment. Modified Tokuhashi and Tomita scores were used for survival prediction.

RESULTS

A total of 55 patients who underwent surgical stabilisation were reviewed. The mean age was 63 years (range: 32-87 years). The main primary sources of tumours included myeloma, breast cancer, lymphoma, lung cancer, renal cell cancer and prostate cancer. Of the cases studied, 29 patients had posterior instrumented stabilisation alone, 10 patients had an anterior procedure alone and 16 patients (with an expected survival of more than one year) had both anterior and posterior procedures performed. Twenty-three patients presented with spinal cord compression. The mean follow-up duration was 9 months (range: 1-39 months). Patients who were treated within one week of referral survived longer than anticipated. Patients were divided into three groups based on their expected survival. Actual survival was better in all three groups after surgery. Discrepancies in scores were prominent in patients with myeloma, breast and prostate cancers. Functional outcome was better in patients under 65 years of age.

CONCLUSIONS

The prognostic scoring systems are not uniformly effective in all types of primary tumours. However, they are useful in decision making for surgical intervention, taking other factors into account, in particular the age of the patient, the type and stage of the primary tumour and general health.

The patterns and risk factors of hearing loss following microvascular decompression for hemifacial spasm

OBJECTIVE

The aim of this study was to reveal the risk factors including intraoperative brain stem auditory evoked potential (BAEP) changes and to define parameter and warning values of BAEP beyond which the probability of hearing impairment rises significantly.

METHODS

From April 1997 to February 2009, 1156 patients underwent microvascular decompression (MVD) for hemifacial spasm (HFS) and their medical records and audiologic data. The intraoperative BAEP monitoring was performed in all operations during surgery from the time of administration of general anesthesia until the time of skin closure. Pure tone audiometry (PTA) and Speech Discrimination Score (SDS) were performed on all patients before and after surgery for categorizing the patterns of hearing loss. There were 825 females and 331 males with a mean age of 48.7 years (range 17-75 years). The mean symptom duration was 67.8 months (range 1-420 months).

RESULTS

At the 1-year follow-up examination, 1091 (94.4%) patients of the total 1156 patients exhibited a cured state, and 65 (5.6%) patients had residual spasms. Hearing loss occurred in 46 patients (3.9%). In 26 patients, PTA was decreased more than 15 dB with a proportional decrease of the SDS. In 10 patients, poor SDS without hearing loss occurred. Total deafness was developed in 10 patients. A higher incidence of BAEP change and a poor recovery especially amplitude in wave V during surgery was observed in patients with poor SDS (eight patients) and total deafness (seven patients) (p =  0.000). Reduction of amplitude more than 50% in wave V was a strong indicator for a worse outcome of the hearing capacity. The difference in other risk factors according to hearing loss pattern was not statistically significant (p  >  0.05). Only female was significant (p = 0.005).

CONCLUSIONS

The intraoperative BAEP change and a poorer recovery, especially reduction of amplitude more than 50% in wave V, was a strong indicator for a worse outcome of the hearing capacity. Vigilant intraoperative monitoring of the BAEP and adequate steps for recovery of the BAEP change could prevent hearing loss after MVD for HFS.

Microvascular decompression for glossopharyngeal neuralgia: a long-term retrospectic review of the Milan-Bologna experience in 31 consecutive cases

OBJECTIVE

To examine surgical findings and results of microvascular decompression (MVD) for glossopharyngeal neuralgia (GN).

METHODS

Between 1990 and 2007, 31 consecutive patients affected by drug-resistant GN underwent MVD through a retromastoid keyhole in the supine position with the head rotated to the opposite side. A retrospective analysis was performed that paid particular attention to the relationship among surgical technique, pain control and side effects.

RESULTS

A vascular compression of the glossopharyngeal nerve was found in all cases. Twenty-eight out of 31 patients (90.3%) were found to be pain free without medication at long-term follow-up (1-17 years, mean 7.5 years). Three patients (9.7%) were found to require medication to control pain paroxysms that were less frequent and less severe than those observed preoperatively. Two patients required repeated surgery for a drug-resistant recurrence of pain for a total of 33 MVDs. We observed no mortality and did not find any long-term surgical morbidity. Cranial nerve impairment, when observed, always resolved in the following months.

CONCLUSIONS

MVD is a safe and effective treatment for GN in patients of all ages.

Craniovertebral junction lesions: our experience with the transoral surgical approach

The aim of this study is to review our experience with the transoral surgical management of anterior craniovertebral junction (CVJ) lesions with particular attention to the decision making and to the indication for a consecutive stabilization. During 10 years (1998-2007), 52 consecutive patients presenting exclusively fixed anterior compression at the cervicomedullary junction underwent transoral surgery. Mean age was 55.85 years (range 17-75 years). Encountered lesions were: malformation (32 cases), rheumatoid arthritis (11 cases), tumor (5 cases) or trauma (4 cases). A total of 79% of patients presented with chronic/recurrent headache (cranial and/or high-cervical pain), 73% with varying degrees of quadrip aresis, and 29% with lower cranial nerve deficits. All of the patients but two, with posterior stabilization performed elsewhere, underwent synchronous anterior decompression and posterior occipitocervical fixation. Adjuncts to the transoral approach (Le Fort I with or without splitting of the palate), tailored to the local anatomy and to the extension of the lesions, were performed in seven cases. Follow-up ranged between 4 and 96 months. Of 35 patients with severe preoperative neurological deficits, 33 improved. The remaining 15 patients who presented with mild symptoms, healed throughout the follow-up. Perioperative mortality occurred in two cases and surgical morbidity in eight cases (dural laceration, cerebrospinal fluid leak with meningitis, malocclusion, oral wound dehiscence and occipital wound infection). Delayed instability occurred in one patient because of cranial settling of C2 vertebral body. A successful surgery achieving a stable decompression at the CVJ is an expertise demanding procedure. It requires accurate preoperative evaluation and, appropriate choice of decompression technique and stabilization instruments. Enlarged transoral approaches (despite higher morbidity) are a supportive means in cases of severe basilar invagination, cranial extension of the lesion or limited jaw mobility.

Comparison of the effect of decompressive craniectomy on different neurosurgical diseases

BACKGROUND

Many previous studies have reported that decompressive craniectomy has improved clinical outcomes in patients with intractable increased intracranial pressure (ICP) caused by various neurosurgical diseases. However there is no report that compares the effectiveness of the procedure in the different conditions. The authors performed decompressive craniectomy following a constant surgical indication and compared the clinical outcomes in different neurosurgical diseases.

MATERIALS AND METHODS

Seventy five patients who underwent decompressive craniectomy were analysed retrospectively. There were 28 with severe traumatic brain injury (TBI), 24 cases with massive intracerebral haemorrhage (ICH), and 23 cases with major infarction (MI). The surgical indications were GCS score less than 8 and/or a midline shift more than 6 mm on CT. The clinical outcomes were assessed on the basis of mortality and Glasgow Outcome Scale (GOS) scores. The changes of ventricular pressure related to the surgical intervention were also compared between the different disease groups.

FINDINGS

Clinical outcomes were evaluated 6 months after decompressive craniectomy. The mortality was 21.4% in patients with TBI, 25% in those with ICH and 60.9% in MI. A favourable outcome, i.e. GOS 4-5 (moderate disability or better) was observed in 16 (57.1%) patients with TBI, 12 (50%) with ICH and 7 (30.4%) with MI. The change of ventricular pressure after craniectomy and was 53.2 (reductions of 17.4%) and further reduced by 14.9% (with dural opening) and (24.8%) after returning to its recovery room, regardless of the diseases group.

CONCLUSIONS

According to the mortality and GOS scores, decompressive craniectomy with dural expansion was found to be more effective in patients with ICH or TBI than in the MI group. However, the ventricular pressure change during the decompressive craniectomy was similar in the different disease groups. The authors thought that decompressive craniectomy should be performed earlier for the major infarction patients.

Comparison of recovery times and complication rates between a modified slanted slot and the standard ventral slot for the treatment of cervical disc disease in 20 dogs

OBJECTIVES

To compare the recovery times and complication rates between the standard ventral slot and the modified slanted ventral slot for the treatment of cervical disc disease in dogs with the same neurological grade.

METHODS

A retrospective analysis of an equal number of cervical disc cases for each procedure was carried out specifically to determine the recovery times and complication rates. To allow for meaningful comparison only dogs that had the same neurological grade were selected. Outcomes were determined by time to recover and the resolution of symptoms and complications were graded in terms of severity.

RESULTS

The standard ventral slot cases had a higher complication rate than the modified slanted slot cases with one case dying in the postoperative period. However, the modified slanted slot cases on average had a marginally slower recovery time than standard ventral slot cases.

CLINICAL SIGNIFICANCE

Ventral decompression using the modified slanted slot instead of the standard ventral slot will allow for spinal decompression with potentially less destabilisation, and incur a similar incidence of complications and rate of recovery.

Outcomes after decompressive craniectomy for severe traumatic brain injury in children

OBJECT

Severe traumatic brain injury (TBI) is often accompanied by early death due to transtentorial herniation. Decompressive craniectomy, performed alone or in conjunction with evacuation of the mass lesion, can reduce the incidence of raised intracranial pressure (ICP). In this paper the authors evaluate mortality and morbidity and long-term outcomes in children who underwent decompressive craniectomy for severe TBI at a single institution.

METHODS

Children with severe TBI who underwent decompressive craniectomy at the Primary Children's Medical Center between 1996 and 2005 were identified retrospectively. Descriptive statistics were used to report postoperative mortality and morbidity rates. Long-term recovery in patients who survived was reported using the King's Outcome Scale for Closed Head Injury (KOSCHI). Fifty-one children with a mean follow-up period of 18.6 months were identified. Nonaccidental trauma accounted for 23.5% of cases. The mean preoperative Glasgow Coma Scale (GCS) score was 4.6. Six patients underwent decompressive craniectomy for elevated ICP only; all other patients underwent decompressive craniectomy in conjunction with removal of the mass lesion. The mean postoperative GCS score was 9.7, and 69.4% of patients had normal ICP levels immediately after surgery. Sixteen children (31.4%) died, including five of six children who underwent decompressive craniectomy for raised ICP alone. Among surviving patients, 2.9% required a tracheostomy, 11.4% required a gastrostomy, 40% experienced posttraumatic shunt-dependent hydrocephalus, and 20% suffered posttraumatic epilepsy requiring antiepileptic agents. The mean KOSCHI score at the last follow-up examination was 4.5 and the mean time to cranioplasty was 2.3 months.

CONCLUSIONS

Posttraumatic hydrocephalus and epilepsy were common complications encountered by children with severe TBI who underwent decompressive craniectomy. In patients who underwent decompressive surgery for raised ICP only, the mortality rate was exceedingly high.

Complications and mortality associated with cervical spine surgery for degenerative disease in the United States

STUDY DESIGN

Retrospective cohort.

OBJECTIVES

To describe the incidence of complications and mortality associated with surgery for degenerative disease of the cervical spine using population-based data. To evaluate the associations between complications and mortality and age, primary diagnosis and type of surgical procedure.

SUMMARY OF BACKGROUND DATA

Recent studies have shown an increase in the number of cervical spine surgeries performed for degenerative disease in the United States. However, the associations between complications and mortality and age, primary diagnosis and type of surgical procedure are not well described using population-based data.

METHODS

We created an algorithm defining degenerative cervical spine disease and associated complications using the International Classification of Diseases-ninth revision Clinical Modification codes. Using the Nationwide Inpatient Sample, we determined the primary diagnoses, surgical procedures, and associated in-hospital complications and mortality from 1992 to 2001.

RESULTS

From 1992 to 2001, the Nationwide Inpatient Sample included an estimated 932,009 (0.3%) hospital discharges associated with cervical spine surgery for degenerative disease. The majority of admissions were for herniated disc (56%) and cervical spondylosis with myelopathy (19%). Complications and mortality were more common in the elderly, and after posterior fusions or surgical procedures associated with a primary diagnosis of cervical spondylosis with myelopathy.

CONCLUSIONS

There are significant differences in outcome associated with age, primary diagnosis, and type of surgical procedure. Administrative databases may underestimate the incidence of complications, but these population-based studies may provide information for comparison with surgical case series and help evaluate rare or severe complications.

Ileostomy or colostomy for temporary decompression of colorectal anastomosis

BACKGROUND

The use of loop ileostomy or loop transverse colostomy represents an important issue in colorectal surgery. Despite a slight preference for a loop ileostomy as a temporary stoma, the best form for temporary decompression of colorectal anastomosis still remains controversial.

OBJECTIVES

To assess the evidence in the use of loop ileostomy compared with loop transverse colostomy for temporary decompression of colorectal anastomosis, comparing the safety and effectiveness.

SEARCH STRATEGY

We identified randomised controlled trials from MEDLINE, EMBASE, Lilacs, and the Cochrane Central Register of Controlled Trials. Further, by hand-searching relevant medical journals and proceedings from major gastroenterological congresses. We did not limit the seaches regarding date and language.

SELECTION CRITERIA

We assessed all randomised clinical trials, that met the objectives and reported major outcomes: 1. Mortality; 2. Wound infection; 3. Time of formation of stoma; 4. Time of closure of stoma; 5. Time interval between formation and closure of stoma; 6. Stoma prolapse; 7. Stoma retraction; 8. Parastomal hernia; 9. Parastomal fistula; 10. Stenosis; 11. Necrosis; 12. Skin irritation; 13. Ileus; 14. Bowel leakage; 15. Reoperation; 16. Patient adaptation; 17. Length of hospital stay; 18. Colorectal anastomotic dehiscence; 19. Incisional hernia; 20. Postoperative bowel obstruction.

DATA COLLECTION AND ANALYSIS

Details of the randomisation, blinding, whether an intention-to-treat analysis was done, and the number of patients lost to follow-up was recorded. For data analysis the relative risk and risk difference were used with corresponding 95% confidence interval; fixed effect was used for all outcomes unless incisional hernia (random effect model). Statistical heterogeneity in the results of the meta-analysis was assessed by inspection of graphical presentation (funnel plot) and by calculating a test of heterogeneity.

MAIN RESULTS

Five trials were included with 334 patients: 168 to loop ileostomy group and 166 to loop transverse colostomy group. The continuous outcomes could not be measured because of the lack of the data. The outcomes stoma prolapse had statistical significant difference: p=0.00001, but with statistical heterogeneity, p=0,001. When the sensitive analysis was applied excluding the trials that included emergencies surgeries, the result had a discreet difference: p = 0.02 and Test for heterogeneity: chi-square = 0.78, df = 2, p = 0.68, I(2)=0%.

AUTHORS' CONCLUSIONS

The best available evidence for decompression of colorectal anastomosis, either use of loop ileostomy or loop colostomy, could not be clarified from this review. So far, the results in terms of occurrence of postoperative stoma prolapse support the choice of loop ileostomy as a technique for fecal diversion for colorectal anastomosis, but large scale RCT's is needed to verify this.

Micro-vascular decompression for primary Trigeminal Neuralgia (typical or atypical). Long-term effectiveness on pain; prospective study with survival analysis in a consecutive series of 362 patients

BACKGROUND

Few publications on primary Trigeminal Neuralgia treated by Micro-Vascular Decompression (MVD) report large series, with long-term follow-up, using Kaplan-Meier (K-M) analysis. None was specifically directed to the comparative study of MVD effectiveness on Trigeminal Neuralgia with typical (i.e., with paroxysmal pain only) and atypical features (i.e., with association of a permanent background of pain).

METHOD

The authors report a series of 362 patients having clearcut vascular compression and treated with pure MVD - i.e., without any additional cut or coagulation of the adjacent root fibers. Follow-up was 1 to 18 y (8 y on average, with a median of 7.2 y). Results were considered overall, then separately for patients with typical (237 (65.5%)) and atypical (125 (34.5%)) clinical presentation.

FINDINGS

One year after operation, (294 (81.2%) of patients were totally-free - of paroxysmal pain, and also of permanent background pain - and not needing any medication) 13 (3.6%) still had a background of pain but without the need for medication which 55 patients (15.2%), treatment had failed. At latest review (8 y on average) the corresponding rates were 80, 4.9 and 15.1%, respectively. Kaplan-Meier analysis estimated the probability of total cure at 15 y to be 73.4%. There was no difference in the cure rate between patients with typical and atypical features at one year: 81 and 81.16%, respectively. The probability of cure at 15 y was identical for the two clinical presentations.

CONCLUSIONS

Pure MVD offers patients affected by Trigeminal Neuralgia due to vascular compression a long-lasting cure in three-fourths of the cases. Both typical and atypical presentations respond well to MVD, view in contrast to the classical view that an atypical presentation has an adverse effect on outcome after surgery.

Endoscopic management of intracranial cysts

Object

Endoscopic fenestration has been recognized as an accepted treatment choice for patients with symptomatic arachnoid cysts. The success of this procedure, however, is greatly influenced by individual cyst anatomy and location as well as the endoscopic technique used. This review was conducted to assess what variables influence the treatment success for different categories of arachnoid cysts.

Methods

Thirty-three consecutive patients who underwent endoscopic fenestration for treatment of an intracranial arachnoid cyst were identified from a prospective database. The surgical indications and techniques were reviewed, and surgical success rates and patient outcomes were assessed. Specific examples of each cyst category are included to illustrate the technical aspects of endoscopic cyst fenestration.

Endoscopic fenestration of arachnoid cysts was successful when judged by cyst decompression, and symptom resolution was noted in 32 (97%) of 33 cases. The one patient with short-term treatment failure underwent a successful repetition of the operation. There were no surgery-related morbidities or deaths.

Conclusions

Arachnoid cysts are a relatively benign pathological entity that can be managed by performing endoscopically guided cyst wall fenestrations into the ventricular system or cerebrospinal fluid–containing cisterns. Proper patient selection, preoperative planning of endoscope trajectory, use of frameless navigation, and advances in endoscope lens technology and light intensity combine to make this a safe procedure with excellent outcomes.

Is decompressive craniectomy for malignant middle cerebral artery territory infarction of any benefit for elderly patients?

BACKGROUND

Malignant middle cerebral artery (MCA) infarction is characterized by mortality rate of up to 80%. The aim of this study was to determine the value of decompressive craniectomy in patients who present with malignant MCA territory infarction and to compare functional outcome in elderly patients with younger patients.

METHODS

Patients with malignant MCA territory infarction treated in our hospital between January 1997 and March 2003 were included in this retrospective analysis. The National Institutes of Health Stroke Scale (NIHSS) assessed neurologic status at admission, operation, and at 1 week after surgery. All patients were followed up for assessment of functional outcome by the Barthel Index (BI) and the modified Rankin Scale (RS) at 3 to 9 months after infarction.

RESULTS

Twenty-five patients underwent decompressive craniectomy. The mortality was 7.7% in younger patients (ages <60 years) compared with 33.3% in elderly patients (ages >/=60 years) (P > .05). All patients had significant decrease of NIHSS after surgery (P < .001). At follow-up, younger patients who received surgery had significantly better outcome with mean BI of 75.42 and Rankin score of 3.00; however, none of the elderly survivors had a BI score above 60 or a Rankin score below 4.

CONCLUSION

Decompressive craniectomy in younger patients with malignant MCA territory infarction improves both survival rates and functional outcomes. Although survival rates were improved after surgery in elderly patients, functional outcome and level of independence were poor.

Cervical spondylotic myelopathy: 10 years of prospective outcome analysis of anterior decompression and fusion

BACKGROUND

Fifty-one patients with cervical spondylotic myelopathy (CSM) treated by anterior cervical corpectomy with fusion (ACWF) at our institution were included in a study during a period of 10 years to evaluate neurological, anatomical, and functional outcomes including satisfaction levels.

METHODS

We have completed a prospective evaluation of 39 patients with spondylotic myelopathy submitted to ACWF during the period of 1989-2000. The data were analyzed for age, duration of symptoms, severity of preoperative neurological deficit, and single-level or multilevel compressive status looking for possible association with prognostic surrogate data and clinical outcome that were evaluated with the Nurick score and a survey of level of satisfaction.

RESULTS

Of the 51 patients, 39 fullfilled the intended follow-up being 28 men (71.8%) and 11 women (28.2%). The average age was 63.5 years. Duration of symptoms ranged from 1 to 240 months (mean, 38.1 months). The mean preoperative Nurick scale score was 2.97; the mean postoperative score was 2.1. The most frequently involved vertebral body was C5 (71.7%). The follow-up period was longer than 18 months for all patients. Postoperative nonneurological complications occurred in 8 patients (15.6%). The mortality rate was 1.9% (n = 1). Postoperative results showed improvement in 25 patients (64.1%), no change in 13 (33.3%), and worsening in 1 (2.6%). The correlation coefficient of preoperative and postoperative Nurick scores was 0.733 (R(2) = 0.53). Of the 39 patients, 31 answered the questionnaire for quality of life-19 (61.2%) were very satisfied, 6 were satisfied (19.35%), and 6 were not satisfied (19.35%).

CONCLUSION

Most patients (80.6%) were very satisfied or satisfied with the outcome and would decide again for the surgery (87%) if the results were previously known. Anterior cervical corpectomy with fusion was a reliable and rewarding procedure for CSM, with functional improvement in most patients. Excellent long-term outcome results in cervical fusion can be achieved without the use of hardware instrumentation.

Factors Associated with Outcome after Hemicraniectomy for Large Middle Cerebral Artery Territory Infarction

OBJECTIVE:

Large or malignant middle cerebral artery infarction is associated with a high mortality rate. Hemicraniectomy reduces intracranial pressure and has been demonstrated to increase survival. Questions remain regarding selection of patients for surgery and functional outcomes.

METHODS:

We retrospectively reviewed the charts, operative reports, and images of patients who underwent hemicraniectomy for cerebral infarction at our institution between 1990 and 2002. Stroke volume and craniectomy area image analyses were performed with National Institutes of Health Image J software. Short-term outcome was measured with the Glasgow Outcome Scale. The requirement for second surgical decompression was also used as a measure of short-term outcome. Outcome 1 year after stroke was assessed with mailed self-report questionnaires to patients or providers with answers yielding information pertinent to the Barthel Index for physical disability, the Reintegration to Normal Living Index, and the Zung Depression Index. Univariate and multivariate logistic regression analyses were used to consider factors associated with outcome.

RESULTS:

Thirty-eight patients with large hemispheric infarcts (average volume, 407 cm3) were treated with hemicraniectomy during the study period. Thirty-two patients survived more than 1 year after surgery. Twenty patients responded to a questionnaire scoring late physical disability (Barthel Index), quality of life (Reintegration to Normal Living Index), and depression (Zung Depression Index). The average Barthel Index score was 67. Barthel Index score and ability to walk were strongly correlated with age but not time to surgery, volume of infarction, or craniectomy size. Patients exhibited moderate to severe decrements in quality of life and increased incidence of depression across all age groups. Reoperation, an indicator for early operative failure, was required in six patients. These patients were significantly younger and had significantly higher volumes of cerebral infarction.

CONCLUSION:

Hemicraniectomy is life-saving treatment for large middle cerebral artery infarction. Good functional outcomes can be obtained but are less likely in older patients. Younger patients with large-volume strokes may benefit from multiple decompressions, if necessary.

Decompressive laparotomy to treat intractable intracranial hypertension after traumatic brain injury

INTRODUCTION

Increases in intra-abdominal pressure (IAP) can cause increases in intracranial pressure (ICP). Recently, we noticed that abdominal fascial release could be useful in treating intracranial hypertension (ICH) after traumatic brain injury (TBI). We added this as an option in our treatment of TBI.

METHODS

In our institution, ICH is treated with an algorithm using osmolar therapy, CSF drainage and barbiturates. Patients with refractory ICH have routine measurement of IAP. If elevated, consideration is given to decompressive laparotomy. We retrospectively reviewed all patients admitted from January 2000 through July 2003 who had abdominal decompression to treat refractory ICH.

RESULTS

From 1/00 to 7/03, 17 patients underwent decompressive laparotomy for intractable ICH. Thirteen male and 4 females all sustained blunt injury. All had failed maximal therapy including 14 who had had decompressive craniectomy. Mean ICP was 30 +/- 8.1 mmHg (range 20-40 mmHg) before decompression. No patients had evidence of abdominal compartment syndrome (ACS). Before decompression mean IAP was 27.5 (+/- 5.2) mmHg (range 21-35 mmHg). After abdominal decompression ICP dropped precipitously by at least 10 mmHg to a mean of 17.5 (+/- 3.2) mmHg (range 10-25 mmHg). In 6 patients the decrease in ICP was transient. All died. The remaining 11 had sustained decreases in ICP. All survived, made neurologic recovery and were discharged to a rehabilitation facility.

CONCLUSION

Decompressive laparotomy can be a useful adjunct in the treatment of ICH failing maximal therapy following TBI. More work will need to be done to precise the exact indications for this therapy.

Survival, complications and outcome in 282 patients operated for neurological deficit due to thoracic or lumbar spinal metastases

We present survival, neurological function, and complications in a consecutive series of 282 patients operated for spinal metastases from January 1990 to December 2001. Our main surgical indication throughout this time period was neurological deficit rather than pain. Metastases from cancer of the prostate accounted for 40%, breast 15%, kidney 8%, and lung 7%. In 78% the level of decompression was thoracic and lumbar in 22%. Thirteen percent had a single metastases only, 64% had multiple skeletal metastases, and 23% had non-skeletal metastases also. Preoperatively 64% were non-walkers (Frankel A-C), 30% could walk with aids (Frankel D) and 8% had normal motor function (Frankel E). Posterior decompression and stabilization was applied in 212 patients, 47 had laminectomy only, and 23 had anterior decompressions and reconstruction. Complications were recorded at a level of 20%, and systemic complications were often associated with early death. The survival rate was 0.63 at 3 months, 0.47 at 6 months, 0.30 at 1 year, and 0.16 at 2 years. Twelve of 255 (5%) patients with motor deficits were worsened postoperatively, whereas 179 (70%) improved at least one Frankel grade. The ability to walk postoperatively was retained during follow-up in more than 80% of the patients. This study shows that important improvement of function can be gained by surgical treatment, but the complication rate was high and many patients died of their disease within the first months of surgery.

[Cervical medullary metastasis in a patient with Von Hippel-Lindau disease]

Von Hippel-Lindau disease is an autosomal dominant disorder mainly characterized by hemangioblastoma(s) associated with kidney clear-cell carcinoma. Hemangioblastoma represents 2 to 3% of all central nervous system tumors whereas extramedullary metastasis accounts for 30 to 50% of all intravertebral column tumors. The most common sites of metastatic dissemination in order of frequency are the lung, breast, prostate and kidney. We report a case of an unusual cervical intradural extramedullary metastasis of clear-cell kidney carcinoma associated with a cervical spinal cord hemangioblastoma in a 45-year-old patient with Von Hippel-Lindau disease who had developed retinal hemangioblastomas 20 years earlier. A review of the relevant literature is proposed.

[Microsurgical vascular decompression for hemifacial spasm. Follow-up over one year, clinical results and prognostic factors. Study of a series of 100 cases]

BACKGROUND AND PURPOSE

The results of a series of 100 patients operated on for hemifacial spasm (HFS), using microsurgical vascular decompression (MVD), are reported.

METHOD

MVD was performed through a retromastoid keyhole approach, under monitoring of brainstem auditory evoked potentials (BAEP) and facial EMG, and consisted in dissection of VII nerve from conflicting vessel(s), and interposition of Teflon fibers and/or screen(s).

RESULTS

The offending vessels found were: the antero-inferior cerebellar artery in 57 cases, the postero-inferior cerebellar artery in 56 cases, the vertebrobasilar artery in 22 cases. A multiple conflict was found in 32 cases (32%). The result was considered excellent if there was no residual spasm, good if only "minimal twitching" remained with relief>80%, poor for spasm relief 20 to 80%, and as a failure if relief<20%. The effect of MVD was satisfying (excellent or good) in 75 patients (75%) at discharge (10th day) and in 85 (85%) after 1 to 18 years follow-up (mean: 5 years). Amongst the latter patients, 29 (34%) experienced a delayed (up to 3(1/2) years in one) cure. Spasm recurrence was noted in 9 cases after satisfying effect on discharge. We encountered following permanent neurological complications: 1 facial palsy, 7 cases of hearing deficit (5 of them complete), and 1 case of IX-X deficit. Neither death nor ischaemic complication at brainstem or cerebellum. Most of our hearing complications occurred before using intraoperative BAEP monitoring (3 cases of cophosis among our first 7 patients vs 2 out of our last 93). Local complications were: 1 meningitis, 8 cases of CSF leakage requiring either a series of lumbar punctures or a lumbar external drain, and 3 cases of wound infection and/or delayed woundhealing requiring surgical treatment.

CONCLUSIONS

Our data are consistent with those of the literature, especially concerning high rate of long-term success and low complication rate of MVD for HFS. We do not recommend early re-operation in case of initial poor result. Again, the necessity of intraoperative BAEP monitoring to prevent hearing morbidity is highlighted.

Microvascular decompression surgery in the United States, 1996 to 2000: mortality rates, morbidity rates, and the effects of hospital and surgeon volumes

OBJECTIVE

Microvascular decompression (MVD) is associated with low mortality and morbidity rates at specialized centers, but many MVD procedures are performed outside such centers. We studied short-term end points after MVD in a national hospital discharge database sample.

METHODS

A retrospective cohort study was performed by using the Nationwide Inpatient Sample, 1996 to 2000.

RESULTS

The sample included 1326 MVD procedures for treatment of trigeminal neuralgia, 237 for treatment of hemifacial spasm, and 27 for treatment of glossopharyngeal neuralgia, performed at 305 hospitals by 277 identified surgeons. The mortality rate was 0.3%, and the rate of discharge other than to home was 3.8%. Neurological complications were coded in 1.7% of cases, hematomas in 0.5%, and facial palsies in 0.6%, with 0.4% of patients requiring ventriculostomies and 0.7% postoperative ventilation. Trigeminal nerve section was also coded for 3.4% of patients with trigeminal neuralgia, more commonly among older patients (P = 0.08), among female patients (P = 0.03), and at teaching hospitals (P = 0.02). The median annual caseloads were 5 cases per hospital (range, 1-195 cases) and 3 cases per surgeon (range, 1-107 cases). With adjustment for age, sex, race, primary insurance, diagnosis (trigeminal neuralgia versus hemifacial spasm versus glossopharyngeal neuralgia), geographic region, admission type and source, and medical comorbidities, outcomes at discharge were superior at higher-volume hospitals (P = 0.006) and with higher-volume surgeons (P = 0.02). Complications were less frequent after surgery performed at high-volume hospitals (P = 0.04) or by high-volume surgeons (P = 0.01). The rate of discharge other than to home was 5.1% for the lowest-volume-quartile hospitals, compared with 1.6% for the highest-volume-quartile hospitals. Volume and mortality rate were not significantly related, but three of the four deaths in the series followed procedures performed by surgeons who had performed only one MVD procedure that year. Length of stay (median, 3 d) and hospital volume were not significantly related. Hospital charges were slightly higher at higher-volume hospitals (P = 0.007).

CONCLUSION

Although most MVD procedures in the United States are performed at low-volume centers, mortality rates remain low. Morbidity rates are significantly lower at high-volume hospitals and with high-volume surgeons.

Release of abdominal compartment syndrome improves survival in patients with burn injury

BACKGROUND

Abdominal compartment syndrome (ACS) has rarely been described as a complication of burn injury. This study describes cases of ACS in patients with burn injury and the physiologic results of abdominal release.

METHODS

Charts for all patients admitted to two major burn center intensive care units from January 1998 through August 2000 were reviewed for ACS. Physiologic parameters were compared before and after abdominal release.

RESULTS

Ten of 1,014 patients developed ACS. Abdominal release improved peak inspiratory pressures and Acute Physiology and Chronic Health Evaluation II scores (p < 0.03). The amount of fluid required to maintain adequate urine output also decreased substantially. Forty percent of patients with ACS survived to discharge.

CONCLUSION

Abdominal release for patients with ACS and severe burn injury results in physiologic improvement and a 40% survival rate. We recommend bladder pressure monitoring for all patients with severe burn injuries and abdominal decompression in any patient who develops pressures greater than 30 mm Hg if they have signs of physiologic compromise. Aggressive expectant management can effect a 40% survival rate in this group of severely injured patients.

Decompressive craniectomy in trauma patients with severe brain injury

Decompressive craniectomy in the treatment of severe traumatic brain injury (TBI) is controversial. We conducted a retrospective review of prospectively collected data on all patients requiring surgery for TBI from 1995 through 2001 at Cedars-Sinai Medical Center. Patients were separated into two groups: Group A, craniectomy, and Group B, craniotomy. We had 120 patients; 24 (20%) had craniectomy and 96 (80%) had craniotomy. There were no significant differences in demographics or Injury Severity Scores. The craniectomy group had significantly more TBI as evidenced by more frequently collapsed basilar cisterns on CT scan (P = 0.0001). There was no significant difference in actuarial survival between the groups: 52.8 per cent in the craniectomy group and 79.2 per cent in the craniotomy group (P = 0.08). Calculated mortality for craniectomy was 37.5 per cent versus 18.8 per cent for craniotomy (P = NS). We found four preoperative findings to be significant predictors of mortality: 1) Glasgow Coma Scale score, 2) Injury Severity Score, 3) Simplified Acute Physiology Score, and 4) Acute Physiology and Chronic Health Evaluation II. The type of surgery was not found to be a significant predictor of death even when adjusted for severity of injury. Craniectomy may be helpful for patients with TBI associated with preoperative CT scan evidence of basilar cistern collapse. This is evidenced by similar survival rates between the two groups despite clinical evidence of greater TBI among craniectomy patients.

Observations on the safety and efficacy of surgical decompression for lumbar spinal stenosis in geriatric patients

This retrospective study examines the results of surgical decompression of the lumbar spinal canal in 122 geriatric patients (age range 75-89 years) treated under general anesthesia by the same surgeon between the years 1990 and 1999. Patient demographics, perioperative complications, pain profiles before surgery and at the time of data collection (December 2000), as well as overall mortality were recorded. One hundred and twenty-two patients were studied. The average age at the time of surgery was 78.8 years (range 75-89 years). No perioperative deaths were recorded. The mean time elapsed from surgery until patient follow-up was 45.7 months (range 12-119 months). Fourteen patients had died at the time of patient follow-up (December 2000). When compared to pain experienced before surgery, at the time of the interview a significant (P<0.0001) improvement in low-back and radicular pain as well as in the ability to perform daily activities (dressing, washing, getting out of bed and walking) was described. We conclude that, for geriatric patients rated as physical status I-II (>75 years) under the American Society of Anesthesiologists (ASA) classification, surgical release of lumbar spinal stenosis is a safe and effective treatment option. However, the suitability of ASA III patients requires further investigation.

[Treatment of patients with acute head injury in Vestfold 1987-96]

BACKGROUND

In Norway, patients with severe head injuries are transported to a regional, neurosurgical department for surgery, but some are operated on by surgeons without neurosurgical training in local hospitals.

MATERIAL AND METHODS

Data were retrospectively collected from the records of all patients (n = 161) hospitalised alive with a severe head injury occurring within Vestfold County (1987-96).

RESULTS

Overall lethality was 27%. 54 patients (34%) underwent decompressive surgery. 31 patients were operated in the local hospital, by 13 different surgeons. 30 of these patients had extracerebral haematomas. These patients had a significantly worse outcome than the 23 patients operated in a regional neurosurgical department. Patients with an epidural haematoma had a better outcome than patients with an acute subdural haematoma. We retrospectively classified ten operations in the local hospital as inadequate.

INTERPRETATION

In Norway and countries with a similar hospital system, local hospitals should establish guidelines for safe and swift transport of head injury patients to the nearest neurosurgical department, and should not try to perform neurosurgical decompression in such patients.

Emergent abdominal decompression with patch abdominoplasty in the pediatric patient

BACKGROUND/PURPOSE

Abdominal compartment syndrome (ACS) is the cardiac, pulmonary, and renal dysfunction that occurs as a result of elevated intraabdominal pressure. The authors present their experience with patch abdominoplasty (PA) in pediatric patients as a means to treat and prevent ACS.

METHODS

The charts of patients who underwent PA were reviewed retrospectively. ACS was defined as the increased oxygen requirements and elevation of peak inspiratory pressures (PIP) associated with abdominal distension and worsening renal and or cardiac function.

RESULTS

A total of 23 patients (13 boys) were treated (average age, 23 months). Diagnoses included necrotizing enterocolitis (NEC, n = 13), trauma (n = 3), Hirschsprung's enterocolitis (n = 2), perforated bowel (n = 4), and bilateral Wilms' tumor with bowel obstruction (n = 1). Oxygen requirements decreased after patch abdominoplasty (mean preoperative FIO2, 0.87 +/- 24, mean postoperative, 0.67 +/- 24 [P = .01]). The PIP decreased significantly in the 13 patients who survived (mean preoperative PIP, 33 +/- 8, mean postoperative PIP, 27 +/- 7 [P = .01]). These PIPs failed to respond in the 8 nonsurvivors (mean preoperative PIP, 35 +/- 10, mean postoperative PIP, 33 +/- 14 [P value not significant]). Six of the 8 nonsurvivors had NEC. Complications of intraabdominal abscess and enterocutaneous fistula were seen in 5 patients, all of who had NEC.

CONCLUSIONS

Patch abdominoplasty effectively decreases airway pressures and oxygen requirements associated with ACS. Complications with PA occur primarily in patients with NEC. Failure to respond with a decrease in PIP and FIO2 requirements is an ominous sign.