284 research outputs found
Malta : hidden change?
On Saturday, May 24, the third European election since Malta joined the
European Union (EU) was held. Malta elected six Members of the European
Parliament (MEPs), one more than in 2009. The electoral system is the same
as the one used in national elections, the major difference being that the 13
electoral districts are merged into one. It is a proportional system based on
the single transferable vote (STV), which permits voters to enumerate as many
preferences as the candidates listed on the ballot sheet (Katz, 1984). The small
dimension of districts, the fact that the ‘extra’ votes obtained by party candidates
are not transferred to a national pool, and acute bipartisanism have produced
an almost perfect two-party system that, together with other features of
the political system, makes Malta a textbook case of majoritarian democracy
(Lijphart, 1999). No party apart from the two main ones - the Partit Laburista
(PL) and the Partit Nazzjonalista (PN - has ever obtained representation
in the Maltese parliament since 1966, nor in the European Parliament (EP)
since 2004, although the greens of Alternattiva Demokratika (AD) occasionally
came close to the objective.peer-reviewe
The anatomy of a misfit : the 2014 European election in Malta
The 2014 European election in Malta did not put the party system under stress, and in many ways resembled past elections. The two parties that have dominated Maltese politics since independence shared the seats equally between them. Once again, the ‘third’, green party failed to obtain parliamentary representation, as did the far-right party despite doubling its votes. The good fit with the second-order election model marked Malta as Southern Europe’s misfit. While the comparatively weak impact of the economic crisis was a contributory factor, a combination of institutional, cultural-historical and contextual factors provide a more accurate explanation. Political institutions are particularly relevant because they reinforce the perfect two-party system – the key to Malta’s political stability – and shield it from the challenge of outsiders.peer-reviewe
Nine-year results on maize and processing tomato cultivation in an organic and in a conventional low input cropping system
Nine-year results on yields and apparent balances of organic matter and nitrogen (N) are reported for maize and processing tomato cultivated in a long term comparison trial between an organic and a conventional low-input system in Central Italy. In every year, above ground biomass and N accumulation of each cash crop and green manure, including weeds, and the partitioning between marketable yield and crop residues were determined. Apparent dry matter and nitrogen balances were calculated at the end of each crop cycle by taking into account the amounts of dry matter and ex-novo N supplied to the system as green manure legume Ndfa ( i.e. an estimate of N derived from the atmosphere via symbiotic fixation) and fertilizers, and those removed with marketable yield. Processing tomato complied with organic cultivation better than maize. As compared to the conventional crop cultivation, organic tomato provided similar yields, used supplied N more efficiently and left lower residual N after harvest, with lower related risks of pollution. Organic maize yielded less than conventional one. The main limitation for organic maize was the low N availability during initial growth phases, due to either low N supply or low rate of N release from incorporated green manure biomass. In both organic and conventional cultivation the system sustainability could be improved by an appropriate crop rotation: wheat in fall winter likely prevented leaching loss of mineral N in both systems; green manure crops in the organic system allowed to either trap and recycle soil mineral N or supply ex novo legume Ndfa to the soil, with benefits in mitigation of N pollution and improvement in self-sufficiency of the system
Evolving management of adolescent varicocele
OBJECTIVE:
To review the evolution in indications for treatment and treatment modalities for adolescent varicocele at our centre, and evaluate the impact of varicocelectomy on final outcome.
PATIENTS AND METHODS:
Between 1995 and 2006, we treated 242 left varicoceles. Preoperative assessment included clinical evaluation, measurement of testicular volumes, and colour-Doppler ultrasound (CDUS). A subinguinal varicocelectomy was performed in 124 patients (group A), and a laparoscopic non-artery-sparing Palomo procedure in the remaining 118 (group B). In group B patients, CDUS was also used to investigate the functional anatomy of varicocele, and all the veins found to be refluxing were divided during surgery. The two groups were compared with regard to indications for surgery and outcome.
RESULTS:
Over time the proportion of patients operated on because of testicular growth retardation increased. Persistence/recurrence rate was comparable between the two groups. In 13% of group B patients, the deferential vein was found to be refluxing on preoperative CDUS and was divided at surgery. Hydrocele rate was higher in group A, unless the vaginalis was excised and everted during varicocelectomy. About 75% of patients with preoperative left testicular growth failure experienced postoperative catch-up growth, irrespective of treatment.
CONCLUSION:
Indications for treatment are still evolving. Varicocele can successfully be treated in the majority of cases by either a laparoscopic or subinguinal approach. Both techniques require care, and CDUS can aid in the decision making. Most patients with preoperative testicular growth failure experience postoperative catch-up growth
A simple technique of oblique anastomosis can prevent stricture formation in primary repair of esophageal atresia
Background: Anastomotic stricture is an important problem after esophageal atresia (EA) repair. This study evaluates a technique of oblique esophageal anastomosis without use of a flap in order to prevent stricture formation. Methods: Medical records of 16 patients (14 with EA type III and 2 with EA type IV Ladd-Gross classification) who underwent primary repair of EA at birth without anastomotic tension were reviewed, evaluating long-term follow-up results. All patients were studied with esophageal contrast study, pH-multichannel intraluminal impedance, and endoscopy. The incidence of complications and their management were analysed. Results: Contrast esophagogram and esophagoscopy always showed regular patency of the suture line. Conclusions: Our technique of oblique anastomosis is simple, safe, and effective in preventing stricture formation even in the long-term follow-up
Laparoscopic Surgery of Deferential Reflux in Pediatric and Adolescent Varicocele
BACKGROUND: This study aimed to assess whether deferential reflux in pediatric
and adolescent varicocele can be successfully treated laparoscopically.
MATERIALS AND METHODS: Since 2001 at our institution, 148 boys were evaluated for
a left varicocele. Preoperatively,all the patients underwent ultrasound scan
assessment of testicular volume and color-Doppler US (CDUS)to rule out reflux
into the internal spermatic vein (ISV), deferential vein, or cremasteric vein.
Boys with ISV reflux were treated by laparoscopic transperitoneal Palomo; boys
with isolated deferential reflux or associated to ISV reflux were
laparoscopically managed adding to the former procedure, coagulation or clipping
of refluxing deferential veins.
RESULTS: Reflux in both the ISV and the deferential vein was observed in 21
(14.1%) out 148 boys with varicocele.Only one case (0.6%) of varicocele was
caused by an isolated deferential reflux. No reflux in the cremasteric vein was
observed. After a median follow up period of 2 years (range, 6 months-5 years),
none of our patients with deferential reflux experienced varicocele recurrence
either clinically or according to CDUS scanning.No testicular atrophy was
observed.
CONCLUSION: Our diagnostic approach is a rigorous standard for identifying all
the venous systems concurring with the varicocele. Our proposed technique with
laparoscopic interruption or coagulation of deferential veins when proved by CDUS
to be refluxing may allow successful treatment for most varicoceles. This method
allows reduction in recurrence of varicocele due to a missed deferential reflux
Green manuring effect of pure and mixed barley - hairy vetch winter cover crops on maize and processing tomato N nutrition
Unilateral multicystic dysplastic kidney in infants exposed to antiepileptic drugs during pregnancy
Prenatal exposure to antiepileptic drugs (AEDs) increases the risk of major congenital malformations (MCM) in the fetus. AED-related abnormalities include heart and neural tube defects, cleft palate, and urogenital abnormalities. Among the various congenital anomalies of the kidney and urinary tract (CAKUT), multicystic dysplastic kidney (MCDK) disease is one of the most severe expressions. Although prenatal ultrasound (US) examination has increased the prenatal diagnosis of MCDK, the pathogenesis is still unclear. We report on four cases of MCDK in infants of epileptic women treated with AEDs during pregnancy. From October 2003 to June 2006, we observed four infants with unilateral MCDK born to epileptic women. Three patients were considered to have typical features of multicystic dysplastic kidney, and one infant was operated because of a cystic pelvic mass in the absence of a kidney in the left flank. The macroscopic appearance of this mass showed an ectopic multicystic kidney confirmed by histological findings. All patients have been studied by US scans, voiding cystourethrogram (VCUG), and radionuclide screening isotope imaging. The prenatal exposure to AEDs increases the risk of major congenital malformations from the background risk of 1-2% to 4-9%. AEDs may determine a defect in apoptosis regulation that could lead to abnormal nephrogenesis, causing MCDK. Carbamazepine (CBZ) and phenobarbital (PHB) during pregnancy should be used at the lowest dosage compatible with maternal disease. The reduction, or even suspension, of drug dosage should be achieved from the periconceptional period to the first 8 weeks of gestation to avoid any interference with organogenesis
Efficacy of periportal infiltration and intraperitoneal instillation of ropivacaine after laparoscopic surgery in children
Postoperative pain is less intense after laparoscopic than after open surgery. However, minimally invasive surgery
is not a a pain-free procedure. Many trials have been done in adults using intraperitoneal and/or incisional
local anesthetic, but similar studies have not yet been reported in the literature in children.
Aim: The aim of this study was to evaluate the analgesic effect of periportal infiltration and intraperitoneal instillation
of ropivacaine in children undergoing laparoscopic surgery.
Materials and Methods: Thirty patients who underwent laparoscopic surgery were randomly allocated to one
of three groups. Group A (n 10) received local infiltration of port sites with 10 mL of ropivacaine. Group B
(n 10) received both an infiltration of port sites with 10 mL of ropivacaine and an intraperitoneal instillation
of 10 mL of ropivacaine. Group C did not receive any analgesic treatment. The local anesthetic was always administered
at the end of surgery. The degree of postoperative abdominal parietal pain, abdominal visceral pain,
and shoulder pain was assessed by using a Wong-Baker pain scale and a Visual Analog Scale (VAS) at 3, 6 12,
and 24 hours postoperatively. The following parameters were also evaluated: rescue analgesic treatment, length
of hospital stay, and time of return to normal activities.
Results: Three hours after operation, patients had low pain scores. Six and 12 hours postoperatively, the abdominal
parietal pain was significantly higher (P 0.0005) in group C than in the other two groups, both treated
with an infiltration at the trocar sites; mean intensity of abdominal visceral pain was significantly lower (P
0.0005) in group B than in groups A and C; the overall incidence of shoulder pain was significantly lower (P
0.0005) in group B patients than in patients of groups A and C. At 20 hours postoperatively, pain scores were
significantly reduced of intensity in all groups. Rescue analgesic treatment was significantly higher in group
C, if compared to groups A and B 12 hours after the operation. No statistically significant difference was found
in length of hospital stay, but children who received analgesic treatment had a more rapid return to normal
activities than untreated patients (P 0.0005).
Conclusions: Our study demonstrates that the combination of local infiltration and intraperitoneal instillation
of ropivacaine is more effective for pain relief in children after laparoscopic surgery than the administration of
ropivacaine only at the trocar sites
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