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1.
Scand J Surg ; 110(2): 170-179, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33851877

ABSTRACT

BACKGROUND: Diagnostic work-up of acute appendicitis remains challenging. While some guidelines advise to use a risk stratification based on clinical parameters, others use standard imaging in all patients. As non-operative management of uncomplicated appendicitis has been identified as feasible and safe, differentiation between uncomplicated and complicated appendicitis is of paramount importance. We reviewed the literature to describe the optimal strategy for diagnosis of acute appendicitis. METHODS: A narrative review about the diagnosis of acute appendicitis in adult patients was conducted. Both diagnostic strategies and goals were analyzed. RESULTS: For diagnosing acute appendicitis, both ruling in and ruling out the disease are important. Clinical and laboratory findings individually do not suffice, but when combined in a diagnostic score, a better risk prediction can be made for having acute appendicitis. However, for accurate diagnosis imaging seems obligatory in patients suspected for acute appendicitis. Scoring systems combining clinical and imaging features may differentiate between uncomplicated and complicated appendicitis and may enable ruling out complicated appendicitis. Within conservatively treated patients with uncomplicated appendicitis, predictive factors for non-responsiveness to antibiotics and recurrence of appendicitis need to be defined in order to optimize treatment outcomes. CONCLUSION: Standard imaging increases the diagnostic power for both ruling in and ruling out acute appendicitis. Incorporating imaging features in clinical scoring models may provide better differentiation between uncomplicated and complicated appendicitis. Optimizing patient selection for antibiotic treatment of appendicitis may minimize recurrence rates, resulting in better treatment outcomes.


Subject(s)
Appendicitis , Acute Disease , Adult , Anti-Bacterial Agents/therapeutic use , Appendectomy , Appendicitis/diagnostic imaging , Appendicitis/surgery , Humans , Treatment Outcome
2.
Br J Surg ; 108(1): 49-57, 2021 01 27.
Article in English | MEDLINE | ID: mdl-33640917

ABSTRACT

BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) and Roux-en-Y gastric bypass (LRYGB) are both effective surgical procedures to achieve weight reduction in patients with obesity. The trial objective was to merge individual-patient data from two RCTs to compare outcomes after LSG and LRYGB. METHODS: Five-year outcomes of the Finnish SLEEVEPASS and Swiss SM-BOSS RCTs comparing LSG with LRYGB were analysed. Both original trials were designed to evaluate weight loss. Additional patient-level data on type 2 diabetes (T2DM), obstructive sleep apnoea, and complications were retrieved. The primary outcome was percentage excess BMI loss (%EBMIL). Secondary predefined outcomes in both trials included total weight loss, remission of co-morbidities, improvement in quality of life (QoL), and overall morbidity. RESULTS: At baseline, 228 LSG and 229 LRYGB procedures were performed. Five-year follow-up was available for 199 of 228 patients (87.3 per cent) after LSG and 199 of 229 (87.1 per cent) after LRYGB. Model-based mean estimate of %EBMIL was 7.0 (95 per cent c.i. 3.5 to 10.5) percentage points better after LRYGB than after LSG  (62.7 versus 55.5 per cent respectively; P < 0.001). There was no difference in remission of T2DM, obstructive sleep apnoea or QoL improvement; remission for hypertension was better after LRYGB compared with LSG (60.3 versus 44.9 per cent; P = 0.049). The complication rate was higher after LRYGB than LSG (37.2 versus 22.5 per cent; P = 0.001), but there was no difference in mean Comprehensive Complication Index value (30.6 versus 31.0 points; P = 0.859). CONCLUSION: Although LRYGB induced greater weight loss and better amelioration of hypertension than LSG, there was no difference in remission of T2DM, obstructive sleep apnoea, or QoL at 5 years. There were more complications after LRYGB, but the individual burden for patients with complications was similar after both operations.


Subject(s)
Gastrectomy/methods , Gastric Bypass/methods , Laparoscopy/methods , Female , Humans , Male , Middle Aged , Obesity, Morbid/surgery , Treatment Outcome , Weight Loss
3.
BMC Surg ; 18(1): 117, 2018 Dec 17.
Article in English | MEDLINE | ID: mdl-30558607

ABSTRACT

BACKGROUND: Based on epidemiological and clinical data acute appendicitis can present either as uncomplicated (70-80%) or complicated (20-30%) disease. Recent studies have shown that antibiotic therapy is both safe and cost-effective for a CT-scan confirmed uncomplicated acute appendicitis. However, based on the study protocols to ensure patient safety, these randomised studies used mainly broad-spectrum intravenous antibiotics requiring additional hospital resources and prolonged hospital stay. As we now know that antibiotic therapy for uncomplicated acute appendicitis is feasible and safe, further studies evaluating optimisation of the antibiotic treatment regarding both antibiotic spectrum and shorter hospital stay are needed to evaluate antibiotics as the first-line treatment for uncomplicated acute appendicitis. METHODS: APPAC II trial is a multicentre, open-label, non-inferiority randomised controlled trial comparing per oral (p.o.) antibiotic monotherapy with intravenous (i.v.) antibiotic therapy followed by p.o. antibiotics in the treatment of CT-scan confirmed uncomplicated acute appendicitis. Adult patients with CT-scan diagnosed uncomplicated acute appendicitis will be enrolled in nine Finnish hospitals. The intended sample size is 552 patients. Primary endpoint is the success of the randomised treatment, defined as resolution of acute appendicitis resulting in discharge from the hospital without the need for surgical intervention and no recurrent appendicitis during one-year follow-up. Secondary endpoints include post-intervention complications, late recurrence of acute appendicitis after one year, duration of hospital stay, pain, quality of life, sick leave and treatment costs. Primary endpoint will be evaluated in two stages: point estimates with 95% confidence interval (CI) will be calculated for both groups and proportion difference between groups with 95% CI will be calculated and evaluated based on 6 percentage point non-inferiority margin. DISCUSSION: To our knowledge, APPAC II trial is the first randomised controlled trial comparing per oral antibiotic monotherapy with intravenous antibiotic therapy continued by per oral antibiotics in the treatment of uncomplicated acute appendicitis. The APPAC II trial aims to add clinical evidence on the debated role of antibiotics as the first-line treatment for a CT-confirmed uncomplicated acute appendicitis as well as to optimise the non-operative treatment for uncomplicated acute appendicitis. TRIAL REGISTRATION: Clinicaltrials.gov , NCT03236961, retrospectively registered on the 2nd of August 2017.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Appendicitis/surgery , Tomography, X-Ray Computed , Acute Disease , Administration, Intravenous , Cost-Benefit Analysis , Finland , Humans , Length of Stay , Quality of Life
4.
J Child Orthop ; 12(3): 288-293, 2018 Jun 01.
Article in English | MEDLINE | ID: mdl-29951130

ABSTRACT

PURPOSE: To assess if postponing surgery of paediatric supracondylar humerus fractures (SCHF) without compromised blood circulation to office hours can improve the quality of reduction and pin fixation and decrease complications. METHODS: In 2004, night-time (0am to 7am) surgery was allowed only for children with compromised blood circulation. Number of open reductions, surgeons experience, operation time, quality of reduction (Baumann angle, anterior humeral line crossing point with capitellum) and pin fixation as well as the number of complications were compared in 100 children before (A) and 100 after (B) the new protocol. Surgery was commenced during office hours (8am to 3pm) in 27% (A) versus 55% (B) and delay to surgery from admission exceeded six hours in 25% (A) versus 52% (B) of the children. RESULTS: Open reduction was performed in eight (A) versus 11 (B) children. In group A, 40% were operated on by a registrar alone compared with 14% in group B. Mean operation room time decreased by 11 minutes in group B. Radiographic alignment was satisfactory at fracture union in 68% (A) versus 68% (B) and radiologically stable pin fixation in 42% (A) versus 55% (B) of children (p = 0.08). The was no statistical difference in admission time, re-reductions, infections, permanent iatrogenic nerve injuries or corrective osteotomies between the patient groups. CONCLUSIONS: No statistical difference in quality of reduction or pin fixation or in number of complications was observed. Postponing operative treatment of SCHF without vascular compromise increased consultant attendance in operations and decreased operative room time. LEVEL OF EVIDENCE: III - retrospective comparative study.

5.
Scand J Surg ; 107(4): 350-355, 2018 Dec.
Article in English | MEDLINE | ID: mdl-29633655

ABSTRACT

BACKGROUND:: Kick scooters are popular among children in both transportation and recreational activities. The aim of this retrospective study was to assess the incidence of and injury patterns associated with kick scooter accidents in school-aged children and adolescents. METHODS:: All 171 patients at the age of 7-15 years who were treated for kick scooter-related injuries in the metropolitan Helsinki area, Southern Finland from January 2008 to December 2013 were included. Electronic medical records were reviewed and Pediatric Trauma Scores and Injury Severity Scores were utilized to assess the injuries. RESULTS:: The annual number of patients increased from 7 in 2008 to 55 in 2013. Almost all patients (94%, n = 161) were injured after a fall from their own height. Most patients (n = 118; 69%) were diagnosed with a fracture but only 26 patients (15%) required surgical procedures under general anesthesia. Pediatric Trauma Scores were low and only one patient had an Injury Severity Score > 15 which can be considered major trauma. CONCLUSION:: Most injuries acquired from kick scooter injuries were easily treatable fractures and bruises. Considering the background population of 105,000 in the respective age group and the 6-year period of data collection from tertiary care, scooting seems a safe means of increasing the physical activity levels of school-aged children and adolescents.


Subject(s)
Accidental Falls/statistics & numerical data , Contusions/epidemiology , Fractures, Bone/epidemiology , Play and Playthings/injuries , Adolescent , Child , Contusions/diagnosis , Contusions/therapy , Female , Finland , Fractures, Bone/diagnosis , Fractures, Bone/therapy , Hospitalization , Humans , Incidence , Male , Retrospective Studies , Trauma Severity Indices
6.
Scand J Surg ; 107(1): 43-47, 2018 Mar.
Article in English | MEDLINE | ID: mdl-28929862

ABSTRACT

BACKGROUND AND AIMS: To assess the accuracy of computed tomography in diagnosing acute appendicitis with a special reference to radiologist experience. MATERIAL AND METHODS: Data were collected prospectively in our randomized controlled trial comparing surgery and antibiotic treatment for uncomplicated acute appendicitis (APPAC trial, NCT01022567). We evaluated 1065 patients who underwent computed tomography for suspected appendicitis. The on-call radiologist preoperatively analyzed these computed tomography images. In this study, the radiologists were divided into experienced (consultants) and inexperienced (residents) ones, and the comparison of interpretations was made between these two radiologist groups. RESULTS: Out of the 1065 patients, 714 had acute appendicitis and 351 had other or no diagnosis on computed tomography. There were 700 true-positive, 327 true-negative, 14 false-positive, and 24 false-negative cases. The sensitivity and the specificity of computed tomography were 96.7% (95% confidence interval, 95.1-97.8) and 95.9% (95% confidence interval, 93.2-97.5), respectively. The rate of false computed tomography diagnosis was 4.2% for experienced consultant radiologists and 2.2% for inexperienced resident radiologists (p = 0.071). Thus, the experience of the radiologist had no effect on the accuracy of computed tomography diagnosis. CONCLUSION: The accuracy of computed tomography in diagnosing acute appendicitis was high. The experience of the radiologist did not improve the diagnostic accuracy. The results emphasize the role of computed tomography as an accurate modality in daily routine diagnostics for acute appendicitis in all clinical emergency settings.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Appendectomy/methods , Appendicitis/diagnostic imaging , Clinical Competence , Tomography, X-Ray Computed/methods , Adolescent , Adult , Aged , Appendicitis/drug therapy , Appendicitis/surgery , Female , Finland , Humans , Male , Middle Aged , Prognosis , Prospective Studies , Radiologists , Risk Assessment , Treatment Outcome , Young Adult
7.
Br J Surg ; 104(10): 1355-1361, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28677879

ABSTRACT

BACKGROUND: An increasing amount of evidence supports antibiotic therapy for treating uncomplicated acute appendicitis. The objective of this study was to compare the costs of antibiotics alone versus appendicectomy in treating uncomplicated acute appendicitis within the randomized controlled APPAC (APPendicitis ACuta) trial. METHODS: The APPAC multicentre, non-inferiority RCT was conducted on patients with CT-confirmed uncomplicated acute appendicitis. Patients were assigned randomly to appendicectomy or antibiotic treatment. All costs were recorded, whether generated by the initial visit and subsequent treatment or possible recurrent appendicitis during the 1-year follow-up. The cost estimates were based on cost levels for the year 2012. RESULTS: Some 273 patients were assigned to the appendicectomy group and 257 to antibiotic treatment. Most patients randomized to antibiotic treatment did not require appendicectomy during the 1-year follow-up. In the operative group, overall societal costs (€5989·2, 95 per cent c.i. 5787·3 to 6191·1) were 1·6 times higher (€2244·8, 1940·5 to 2549·1) than those in the antibiotic group (€3744·4, 3514·6 to 3974·2). In both groups, productivity losses represented a slightly higher proportion of overall societal costs than all treatment costs together, with diagnostics and medicines having a minor role. Those in the operative group were prescribed significantly more sick leave than those in the antibiotic group (mean(s.d.) 17·0(8·3) (95 per cent c.i. 16·0 to 18·0) versus 9·2(6·9) (8·3 to 10·0) days respectively; P < 0·001). When the age and sex of the patient as well as the hospital were controlled for simultaneously, the operative treatment generated significantly more costs in all models. CONCLUSION: Patients receiving antibiotic therapy for uncomplicated appendicitis incurred lower costs than those who had surgery.


Subject(s)
Anti-Bacterial Agents/economics , Anti-Bacterial Agents/therapeutic use , Appendectomy/economics , Appendicitis/drug therapy , Appendicitis/surgery , Acute Disease , Adolescent , Adult , Cost-Benefit Analysis , Ertapenem , Finland , Humans , Length of Stay/economics , Levofloxacin/economics , Levofloxacin/therapeutic use , Metronidazole/economics , Metronidazole/therapeutic use , Middle Aged , Recurrence , Sick Leave/economics , Treatment Outcome , Young Adult , beta-Lactams/economics , beta-Lactams/therapeutic use
9.
Mol Psychiatry ; 21(8): 1057-62, 2016 08.
Article in English | MEDLINE | ID: mdl-26460230

ABSTRACT

Positron emission tomography (PET) studies suggest opioidergic system dysfunction in morbid obesity, while evidence for the role of the dopaminergic system is less consistent. Whether opioid dysfunction represents a state or trait in obesity remains unresolved, but could be assessed in obese subjects undergoing weight loss. Here we measured brain µ-opioid receptor (MOR) and dopamine D2 receptor (D2R) availability in 16 morbidly obese women twice-before and 6 months after bariatric surgery-using PET with [(11)C]carfentanil and [(11)C]raclopride. Data were compared with those from 14 lean control subjects. Receptor-binding potentials (BPND) were compared between the groups and between the pre- and postoperative scans among the obese subjects. Brain MOR availability was initially lower among obese subjects, but weight loss (mean=26.1 kg, s.d.=7.6 kg) reversed this and resulted in ~23% higher MOR availability in the postoperative versus preoperative scan. Changes were observed in areas implicated in reward processing, including ventral striatum, insula, amygdala and thalamus (P's<0.005). Weight loss did not influence D2R availability in any brain region. Taken together, the endogenous opioid system plays an important role in the pathophysiology of human obesity. Because bariatric surgery and concomitant weight loss recover downregulated MOR availability, lowered MOR availability is associated with an obese phenotype and may mediate excessive energy uptake. Our results highlight that understanding the opioidergic contribution to overeating is critical for developing new treatments for obesity.


Subject(s)
Obesity, Morbid/metabolism , Receptors, Dopamine D2/metabolism , Receptors, Opioid, mu/metabolism , Adult , Bariatric Surgery , Brain/metabolism , Dopamine/metabolism , Female , Fentanyl/analogs & derivatives , Humans , Middle Aged , Positron-Emission Tomography/methods , Receptors, Dopamine D2/physiology , Receptors, Opioid/metabolism , Receptors, Opioid/physiology , Receptors, Opioid, mu/physiology , Weight Loss
11.
Scand J Surg ; 103(3): 175-181, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24522349

ABSTRACT

BACKGROUND AND AIMS: The long-term efficacy of laparoscopic Roux-en-Y gastric bypass in the treatment of morbid obesity has already been demonstrated. Laparoscopic sleeve gastrectomy has shown promising short-term results, but the long-term efficacy is still unclear. The aim of this prospective randomized multicenter study is to compare the results of Roux-en-Y gastric bypass and sleeve gastrectomy. MATERIAL AND METHODS: A total of 240 morbidly obese patients were randomized to undergo either Roux-en-Y gastric bypass or sleeve gastrectomy. The primary end point of study was weight loss, and the secondary end points were resolution of comorbidities and morbidity. The short-term results at 6 months were analyzed. RESULTS: The mean excess weight loss at 6 months was 49.2% in the sleeve gastrectomy group and 52.9% in the Roux-en-Y gastric bypass group (p = 0.086). Type 2 diabetes was resolved or improved in 84.3% of patients in the sleeve gastrectomy group and 93.3% in the Roux-en-Y gastric bypass group (p = 0.585). The corresponding results for arterial hypertension were 76.8% and 81.9% (p = 0.707) and for hypercholesterolemia 64.1% and 69.0% (p = 0.485). There was no mortality at 6 months. There was one major complication following sleeve gastrectomy and two after Roux-en-Y gastric bypass (p = 0.531). Eight sleeve gastrectomy patients and 11 Roux-en-Y gastric bypass patients had minor complications (p = 0.403). CONCLUSION: The short-term results of sleeve gastrectomy and Roux-en-Y gastric bypass regarding weight loss, resolution of obesity-related comorbidities and complications were not different at 6 months.

12.
Dis Esophagus ; 27(8): 715-8, 2014.
Article in English | MEDLINE | ID: mdl-24118339

ABSTRACT

Esophageal perforation is associated with significant mortality, and this may markedly increase with advanced age. This multicenter study investigates this issue in patients older than 80 years. Data on 33 patients >80 years old who underwent conservative (10 patients), endoclip (one patient), stent grafting (11 patients), or surgical treatment (11 patients) for esophageal perforation were collected from nine centers. Surgical repair consisted of repair on drain in one patient, primary repair in seven patients, and esophagectomy in two patients. Among patients who underwent stent grafting, one required repeat stenting and another stent graft repositioning. One patient was converted to surgical repair after stent grafting. Thirteen patients (39.4%) died during the 30-day and/or in-hospital stay. Their mortality was significantly higher than in a series of patients<80 years old (13.0%, 21/161 patients, P=0.001). Three patients (30.0%) died after conservative treatment, one (100%) after treatment with endoclips, five (45.5%) after stent grafting, and four (36.4%) after surgical repair (P=0.548). Early survival with salvaged esophagus was 42.4% (conservative treatment: 70.0% endoclips 0%, stent grafting: 54.5%, and surgical repair: 54.5%, respectively, P=0.558). Estimated glomerular filtration rate<60 mL/minute/1.73 m2 (70.0% vs. 25.0%, P=0.043) and sepsis (100% vs. 32.1%, P=0.049) at presentation were associated with increased risk of early mortality in univariate analysis. Esophageal perforation in octogenarians is associated with very high early and intermediate high mortality irrespective of the treatment method used.


Subject(s)
Esophageal Perforation/mortality , Esophageal Perforation/surgery , Aged, 80 and over , Comorbidity , Esophageal Perforation/complications , Esophagectomy , Esophagoscopy , Esophagus/surgery , Female , Humans , Length of Stay , Male , Postoperative Period , Prognosis , Retrospective Studies , Stents , Treatment Outcome
13.
Diabetologia ; 56(4): 893-900, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23334481

ABSTRACT

AIMS/HYPOTHESIS: The role of the intestine in the pathogenesis of metabolic diseases is gaining much attention. We therefore sought to validate, using an animal model, the use of positron emission tomography (PET) in the estimation of intestinal glucose uptake (GU), and thereafter to test whether intestinal insulin-stimulated GU is altered in morbidly obese compared with healthy human participants. METHODS: In the validation study, pigs were imaged using [(18)F]fluorodeoxyglucose ([(18)F]FDG) and the image-derived data were compared with corresponding ex vivo measurements in tissue samples and with arterial-venous differences in glucose and [(18)F]FDG levels. In the clinical study, GU was measured in different regions of the intestine in lean (n = 8) and morbidly obese (n = 8) humans at baseline and during euglycaemic hyperinsulinaemia. RESULTS: PET- and ex vivo-derived intestinal values were strongly correlated and most of the fluorine-18-derived radioactivity was accumulated in the mucosal layer of the gut wall. In the gut wall of pigs, insulin promoted GU as determined by PET, the arterial-venous balance or autoradiography. In lean human participants, insulin increased GU from the circulation in the duodenum (from 1.3 ± 0.6 to 3.1 ± 1.1 µmol [100 g](-1) min(-1), p < 0.05) and in the jejunum (from 1.1 ± 0.7 to 3.0 ± 1.5 µmol [100 g](-1) min(-1), p < 0.05). Obese participants failed to show any increase in insulin-stimulated GU compared with fasting values (NS). CONCLUSIONS/INTERPRETATION: Intestinal GU can be quantified in vivo by [(18)F]FDG PET. Intestinal insulin resistance occurs in obesity before the deterioration of systemic glucose tolerance.


Subject(s)
Fluorodeoxyglucose F18 , Insulin Resistance , Intestinal Mucosa/metabolism , Obesity, Morbid/metabolism , Positron-Emission Tomography/methods , Adult , Animals , Arteries/pathology , Female , Gastrointestinal Tract/metabolism , Gastrointestinal Tract/pathology , Glucose/pharmacokinetics , Humans , Male , Middle Aged , Random Allocation , Swine , Veins/pathology
14.
AJNR Am J Neuroradiol ; 34(1): 198-204, 2013 Jan.
Article in English | MEDLINE | ID: mdl-22766677

ABSTRACT

BACKGROUND AND PURPOSE: Peripheral AVM is a locally aggressive disease with a high tendency to recur; its treatment is complex, especially in the anatomically delicate head and neck area. Here, we report results of ethanol sclerotherapy for head and neck AVM and discuss its potential use for peripheral AVM. MATERIALS AND METHODS: We retrospectively assessed degree of AVM eradication, complications, and clinical or imaging signs of recurrence for 19 patients treated with ethanol sclerotherapy for head and neck AVM (1 intraosseous, 18 soft-tissue AVMs). RESULTS: Of the 19 patients, 11 had complete eradication of arteriovenous shunting at DSA, with 1 recurrence (mean follow-up 15 months), and for 7 patients, treatment is ongoing. During 59 treatment sessions, 12 patients experienced 14 complications, 1 leading to permanent functional damage. CONCLUSIONS: Ethanol sclerotherapy has potential for complete eradication of head and neck AVM with low recurrence within the first year after completion of treatment. Complete eradication may require several treatment sessions during which complications should be minimized with careful techniques.


Subject(s)
Arteriovenous Malformations/diagnostic imaging , Arteriovenous Malformations/therapy , Ethanol/therapeutic use , Sclerotherapy/methods , Adolescent , Adult , Child , Female , Head , Humans , Male , Middle Aged , Neck , Radiography , Sclerosing Solutions/therapeutic use , Treatment Outcome , Young Adult
15.
Colorectal Dis ; 13(4): 399-405, 2011 Apr.
Article in English | MEDLINE | ID: mdl-20041930

ABSTRACT

AIM: Conventional outcomes such as survival, tumour recurrence and complication rates after surgery for rectal cancer have been rigorously assessed, but the importance of maintaining quality of life (QOL) after surgery for rectal cancer has received less attention. The aim of the current study was to analyse QOL and the occurrence of pelvic dysfunction after the surgical treatment of rectal cancer. METHOD: Between May 2005 and May 2008, 150 patients with rectal cancer underwent abdominoperineal resection (APR) or anterior resection (AR). Seventy-four answered two preoperative questionnaires. At a follow up of 1 year, 65 were alive without sign of recurrence and answered the same questionnaires: (a) validated RAND 36-item health survey QOL questionnaire; and (b) self-administered disease-related questionnaire with special reference to anorectal and urogenital function. RESULTS: The postoperative general QOL was similar after surgery, and mental functioning was better (P < 0.001). Problems with physical functions were associated with anal dysfunction after AR (P < 0.001) and problems with social functioning were associated with urinary dysfunction (P = 0.038). At 1 year after surgery, urinary incontinence was worse (P = 0.026) after all operations, and the incidence of dysuria was higher after APR than AR (P = 0.001). Male sexual function also worsened (P = 0.060). Anorectal dysfunction caused more inconvenience among patients who underwent AR (P = 0.028). Preoperative radiation was associated with postoperative ejaculation problems (P = 0.028) and anal incontinence (P = 0.012). CONCLUSION: Factors affecting QOL and pelvic floor function should be taken into account when making treatment decisions in rectal cancer.


Subject(s)
Digestive System Surgical Procedures/adverse effects , Pelvic Floor/physiopathology , Quality of Life , Rectal Neoplasms/psychology , Rectal Neoplasms/surgery , Adult , Aged , Aged, 80 and over , Dysuria/etiology , Fecal Incontinence/etiology , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prospective Studies , Self Report , Sexual Dysfunction, Physiological/etiology , Treatment Outcome , Urinary Incontinence/etiology
16.
Rev Sci Instrum ; 81(11): 111301, 2010 Nov.
Article in English | MEDLINE | ID: mdl-21133454

ABSTRACT

The electric solar wind sail (E-sail) is a space propulsion concept that uses the natural solar wind dynamic pressure for producing spacecraft thrust. In its baseline form, the E-sail consists of a number of long, thin, conducting, and centrifugally stretched tethers, which are kept in a high positive potential by an onboard electron gun. The concept gains its efficiency from the fact that the effective sail area, i.e., the potential structure of the tethers, can be millions of times larger than the physical area of the thin tethers wires, which offsets the fact that the dynamic pressure of the solar wind is very weak. Indeed, according to the most recent published estimates, an E-sail of 1 N thrust and 100 kg mass could be built in the rather near future, providing a revolutionary level of propulsive performance (specific acceleration) for travel in the solar system. Here we give a review of the ongoing technical development work of the E-sail, covering tether construction, overall mechanical design alternatives, guidance and navigation strategies, and dynamical and orbital simulations.

17.
Dig Surg ; 27(6): 509-14, 2010.
Article in English | MEDLINE | ID: mdl-21196734

ABSTRACT

BACKGROUND: The surgical treatment of gastroesophageal reflux-induced reflux laryngitis remains controversial. The aim of this study was to determine both long-term objective endoscopic findings and subjective symptomatic outcomes after laparoscopic Nissen fundoplication in patients operated on for reflux laryngitis. METHODS: 40 consecutive patients with pH-proven reflux laryngitis underwent laparoscopic Nissen fundoplication between 1998 and 2002. 68% (n = 27) of these patients underwent an endoscopic evaluation and 90% (n = 36) were available for the subjective long-term outcome (personal interviews). RESULTS: At a median follow-up of 91 months there were no disrupted plications, none of the patients had esophagitis but 3 recurrent hiatal hernias were detected. 61% of the patients reported no or only mild reflux laryngitis symptoms postoperatively and 69% of the patients evaluated their voice quality improved after surgery. 94% of the patients were satisfied with their surgical result. With benefit of hindsight, 11% of the patients would not choose surgical treatment and 42% had reinitiated antireflux medications postoperatively. CONCLUSION: The majority of pH-proven gastroesophageal reflux-induced reflux laryngitis patients attain long-term symptomatic benefit and satisfaction on the surgical outcome, and with proper patient selection laparoscopic Nissen fundoplication provides a feasible long-term treatment option for reflux laryngitis.


Subject(s)
Fundoplication , Gastroesophageal Reflux/complications , Laparoscopy , Laryngitis/surgery , Follow-Up Studies , Gastroesophageal Reflux/surgery , Hernia, Hiatal , Humans , Interviews as Topic , Laryngitis/etiology , Laryngoscopy , Treatment Outcome , Voice Quality
18.
Scand J Surg ; 98(3): 175-9, 2009.
Article in English | MEDLINE | ID: mdl-19919924

ABSTRACT

BACKGROUND AND AIMS: Mopeds and scooters have become increasingly popular among Finnish teenagers. The aim of this retrospective study was to assess incidence of and injury patterns associated with moped and scooter accidents in adolescents. MATERIALS AND METHODS: All 222 patients treated for moped and scooter-related injuries at Helsinki Children's Hospital and Töölö Trauma Centre from January 2002 to December 2007 were included. Information was drawn from patient records and compared with nation-wide Finnish data gathered from public data-bases. RESULTS: The annual number of patients at our centres increased from 14 to 76 and the pro-portion of girls increased from 7% to 25%. A similar trend was found on a national level. In our material, collisions between mopeds and other motorized vehicles accounted for 52% of accidents, and 33% of patients were injured from falling. Seventy-five percent of patients were hospitalized, and 50% needed at least one procedure requiring general anaesthesia. Five percent of the patients were under the influence of alcohol. Trauma of the head occurred in 22%; helmets did not protect against severe trauma. On a national level the proportion of 15- to 17-year-old road traffic victims has doubled in five years. Among this age group, more than half of all road-traffic accidents involve mopeds and scooters. CONCLUSIONS: Over a time span of six years, moped accidents among adolescents have become very common. Our results suggest that measures should be taken to diminish the number of moped and scooter accidents and to improve driver safety.


Subject(s)
Accidents, Traffic/statistics & numerical data , Brain Injuries/epidemiology , Fractures, Bone/epidemiology , Motorcycles , Multiple Trauma/epidemiology , Accidents, Traffic/mortality , Adolescent , Female , Finland/epidemiology , Hospitalization , Humans , Incidence , Male , Registries , Retrospective Studies
20.
Surgeon ; 7(4): 224-7, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19736889

ABSTRACT

BACKGROUND: Laparoscopic Nissen fundoplication has become the method of choice in antireflux surgery replacing its open counterpart before the long-term results of controlled clinical trials were available. METHODS AND AIM: Review of the literature to highlight the long-term results of laparoscopic Nissen fundoplication. RESULTS: Long-term symptom relief regarding significant reflux symptoms of heartburn and regurgitation can be achieved by laparoscopic fundoplication in 84% to 97% and patients' overall satisfaction with the result of their laparoscopic fundoplication surgery is high, ranging from 86% to 96%. The long-term results of randomised trials have shown no statistically significant differences in subjective symptomatic outcome between laparoscopic and open Nissen fundoplication. Complaints regarding the scar, incisional hernias and higher incidence of defective wraps were associated with the open approach. CONCLUSION: At long-term follow-up the laparoscopic Nissen fundoplication has a similar long-term subjective symptomatic outcome as the open procedure but laparoscopic Nissen fundoplication is associated with a significantly lower incidence of incisional hernias and defective fundic wraps at endoscopy, defining laparoscopic Nissen fundoplication as the procedure of choice in surgical management of gastro-oesophageal reflux disease.


Subject(s)
Fundoplication , Gastroesophageal Reflux/surgery , Laparoscopy , Gastroesophageal Reflux/complications , Gastroesophageal Reflux/pathology , Humans , Treatment Outcome
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