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Biomedical subjects

A Iannelli

Publications and source records attributed to A Iannelli.

At least 37 records · Page 2Linked to original sources

Can laparoscopy reduce hospital stay in the treatment of Crohn's disease?

PURPOSE: The aim of this article was to investigate the safety, outcome, length of stay, and cost of hospital admission in patients with Crohn's disease who underwent laparoscopy compared with open surgery. METHODS: Among 51 consecutive patients with inflammatory bowel disease (1996-2000), 46 with Crohn's disease were included in this nonrandomized prospective study. Of these, 20 patients underwent laparoscopic surgery and 26 underwent open surgery. Data collected included the following information: age, gender, body mass index, diagnosis, duration of disease, preoperative medical treatment, previous abdominal surgery, present indication for surgery, and procedure performed (comparability measures), as well as conversion to open surgery, operating time, time to resolution of ileus, morbidity, duration of hospital stay, and cost of hospital admission (outcome measures). RESULTS: There was no significant difference with respect to comparability measures between the laparoscopic and the open-surgery groups. There was no mortality. There was no intraoperative complication in either group and no conversion in the laparoscopic group. Operating time was significantly longer in the laparoscopic group (302 minutes) vs. the open group (244.7 minutes) (P < 0.05), but this difference disappeared when data were adjusted for the extra time required to perform the laparoscopic hand-sewn anastomoses (288.2 minutes vs. 244.7 minutes). Bowel function returned more quickly in the laparoscopic group vs. the open group in terms of passage of flatus (3.7 vs. 4.7 days) (P < 0.05) and resumption of oral intake (4.2 vs. 6.3 day) (P < 0.01). There were significantly fewer postoperative complications in the laparoscopic group (9.5 percent) vs. the open group (18.5 percent) (P < 0.05); the length of stay was significantly shorter in the laparoscopic group (8.3 days) vs. the open group (13.2 days) (P < 0.01); and the cost of hospital admission was significantly lower in the laparoscopic group ($6106, United States dollars) vs. the open group ($9829, United States dollars) (P < 0.05). CONCLUSION: There is a reduction in the postoperative ileus, length of stay, cost of hospital admission, and postoperative complication rate in the laparoscopic group. Laparoscopic surgery for Crohn's disease is safe, and it is potentially more cost-effective than traditional open surgery.

Adult↗

Harmonic scalpel in laparoscopic colorectal surgery.

PURPOSE: With advances in laparoscopy, various hemostatic procedures have been advocated with variable results. Using currently available tools, some steps in laparoscopic colorectal surgery still represent technical challenges. Our aim was to investigate the feasibility and reliability of the Harmonic Scalpel in laparoscopic colorectal surgery. METHODS: In this nonrandomized prospective study, 34 consecutive patients (15 males; mean age, 46 (range, 24-80) years) underwent laparoscopic colorectal surgery for benign disease (27 patients) and colorectal cancer (7 patients). Dissection, hemostasis, coagulation, and division of several types of vascular pedicles were performed exclusively with the Harmonic Scalpel. The 10-mm-blade Harmonic Scalpel device was used at full power mode for all purposes through a 10-mm port. Coagulation of vascular pedicles was always achieved with the blades in the flat position. The large pedicles (inferior mesenteric, right and left colic, and ileocolic) were coagulated for 20 seconds in several locations along the length (1 cm) before final division. Smaller vascular pedicles were coagulated for ten seconds before division. When the vein and the artery of major pedicles were divided at their origin, either for malignancy or for technical reasons, they were dissected and coagulated separately. For more limited resection of the mesentery, as in the case of benign disease, vascular pedicles were coagulated together as a single bundle. Operative time, minor or major intraoperative or postoperative hemorrhage, need for conversion to laparotomy, bowel injury, and trocar complications were recorded. All anastomoses were checked on Day 8 by a diatrizoate sodium enema. RESULTS: There was no mortality. Mean operative time was 276 (range, 200-520) minutes. Neither minor nor uncontrollable hemorrhage occurred; no conversion to laparotomy and no vascular or bowel injury were recorded. There was one port-site hematoma. Neither hemoperitoneum, intraperitoneal hematoma, fistula, nor intra-abdominal abscess was observed. CONCLUSION: Coagulation and division of minor as well as major vascular pedicles in laparoscopic colorectal surgery with the Harmonic Scalpel" are technically easy, feasible, and reliable.

Adenocarcinoma↗

[Post-traumatic fracture and migration in the pulmonary artery of the catheter of a totally implantable venous access device. Unusual complication].

The case of a 59 year-old patient, who sustained a post-traumatic fracture of the silastic catheter of his totally implantable venous access device that migrated in the right pulmonary artery, is reported. The venous device was placed six months earlier for the treatment of metastatic spread of a primary unknown adenocarcinoma. The venous device was placed on the left side in consideration of a recent right supraclavicular node biopsy. The catheter was introduced through the left internal jugular vein and its peripheral end was positioned subcutaneously across the clavicle to be connected to the port chamber placed in the infraclavicular region. The accidental fracture of the catheter was attributed to a closed trauma occurred during the transport of a refrigerator on the homolateral shoulder. Treatment involved extraction of the migrated fragment through a percutaneous transfemoral angioradiological procedure. A few days later the chamber was removed and a new totally implantable venous access device was placed on the other side.

Catheterization, Central Venous↗

Laparoscopic sigmoid colectomy with intracorporeal hand-sewn anastomosis.

In recent years, laparoscopy has had a significant impact on colorectal surgery. However, to date, totally laparoscopic procedures have required the use of stapling devices to fashion the anastomosis. Herein we report a case of totally laparoscopic sigmoid colectomy with intracorporeal hand-sewn anastomosis for diverticulitis. We describe the surgical technique, focusing on the advantages of and indications for the laparoscopic hand-sewn anastomosis.

Aged↗

Evidence for a recessive inheritance of Turcot's syndrome caused by compound heterozygous mutations within the PMS2 gene.

Turcot's syndrome is a genetic disease characterized by the concurrence of primary brain tumors and colon cancers and/or multiple colorectal adenomas. We report a Turcot family with no parental consanguinity, in which two affected sisters, with no history of tumors in their parents, died of a brain tumor and of a colorectal tumor, respectively, at a very early age. The proband had a severe microsatellite instability (MIN) phenotype in both tumor and normal colon mucosa, and mutations in the TGFbeta-RII and APC genes in the colorectal tumor. We identified two germline mutations within the PMS2 gene: a G deletion (1221delG) in exon 11 and a four-base-pair deletion (2361delCTTC) in exon 14, both of which were inherited from the patient's unaffected parents. These results represent the first evidence that two germline frameshift mutations in PMS2, an MMR gene which is only rarely involved in HNPCC, are not pathogenic per se, but become so when occurring together in a compound heterozygote. The compound heterozygosity for two mutations in the PMS2 gene has implications for the role of protein PMS2 in the mismatch repair mechanism, as well as for the presymptomatic molecular diagnosis of at-risk family members. Furthermore, our data support and enlarge the notion that high DNA instability in normal tissues might trigger the development of cancer in this syndrome.

Adenoma↗

Early post-traumatic seizures in children with head injury.

Post-traumatic seizures (PTS) can be a serious complication of head injury, because they can cause secondary brain damage through increased metabolic requirements, raised intracranial pressure, cerebral hypoxia, and/or excessive release of neurotransmitters. In children, early PTS are more frequent than late ones. In this retrospective study we conducted an epidemiological analysis and tried to identify potential risk factors for the onset of early PTS in children hospitalized for head injury in our Paediatric Intensive Care Unit. The severity of injury was assessed using the Glasgow Coma Scale (GCS), while the outcome of traumatized children was defined using the Glasgow Outcome Score (GOS). Early PTS were diagnosed in 15 out of the 125 children hospitalized (12%). Most of the children (73.3%), developed seizures within 24 h of the trauma (immediate PTS). Among the risk factors, a very important role was played by the severity of the injury; in fact, the incidence of early PTS among patients with GCS < or = 8 was ten times greater than that among children with GCS 13-15. Other risk factors that significantly influenced the onset of early PTS, were age (60% of children with early PTS were less than 3 years old) and severe cerebral edema. Overall, children with early PTS had a worse outcome than the other patients. In fact, 53% had a GOS of < or = 3 compared to 19.1% of those without early PTS (P<001). In particular, considering children with severe head injury, 80% of those with early PTS had a GOS of < or = 3, compared to 41% of those without early PTS (P<0.05). In conclusion, PTS can be a serious complication of head injury in children, because they can worsen secondary brain damage. Appropriate management of head-trauma patients must include suitable and immediate prophylaxis with anti-epileptic drugs.

Cerebral Hemorrhage↗

[Hand-sewn intra-abdominal anastomosis performed via video laparoscopy during colorectal surgery].

STUDY OBJECTIVE: Laparoscopic colectomies have been recently shown to be feasible and safe, with the use of stapling devices to fashion the anastomosis. The aim of this study was to evaluate the feasibility and safety of laparoscopic intra-abdominal hand-sewn anastomosis. PATIENTS AND METHODS: Seven patients (four males and three females, mean age 48 years) were included. There were two ileocolic resections for recurrence of Crohn's disease, two right colectomies (one for Crohn's disease and one for carcinoid tumor of the appendix), two left colectomies for diverticulitis and one segmental colectomy for sigmoid volvulus. There were: four side-to-side anastomoses, two side-to-end anastomoses and one end-to-end anastomosis. Anastomoses were fashioned with interrupted single layer sutures in four cases (two ileo-colic and two colorectal anastomoses) and with single layer running sutures in three cases (two ileo-colic and one colo-colic anastomoses). The specimens were retrieved by means of a plastic bag through a 3 to 5 cm long minilaparotomy in five cases and through the rectum in two cases. RESULTS: Mean additional time to perform hand-sewn intra-corporeal anastomosis was 90 +/- 15 min. There was no operative mortality and no intraoperative complications. Postoperative course was uneventful in six patients. Patients were started on an oral fluid diet on day 2 and discharged on day 5, except for one patient with Crohn's disease who had a severe anastomotic bleeding on postoperative day 2 and who required laparotomy for hemostasis through a service colotomy with a single suture. He was discharged on day 8. CONCLUSION: Intra-abdominal hand-sewn anastomoses are feasible and seem reliable. This represents a new step making laparoscopic procedures even closer to conventional techniques. This technique must be evaluated in larger series.

Abdomen↗

Surgical treatment of temporal tumors associated with epilepsy in children.

Seizures are a frequent sign of cerebral supratentorial tumors in children, especially when the location of the neoplasm is the temporal lobe. We report a series of 37 pediatric patients with temporal epileptogenic tumors. They represent 80.4% of children affected by temporal neoplasms, confirming the high incidence of seizures when neoplasms are located in this cerebral area. There was a slight male predominance. Epilepsy was the first symptom in all the patients of our series, as well as the only clinical manifestation present until surgery in 62% of patients. In the remaining children, hemiparesis, intracranial hypertension, psychosocial or neuropsychological disabilities, and delayed milestones arose before diagnosis and surgical treatment. The most frequent type of seizures was the partial complex (56%), but simple partial or generalized fits, as well as more than one type of seizures, were observed. The medial temporal structures were those more commonly involved, although seizures were observed also in cases where they were spared by tumors located exclusively in the temporal neocortex. On histology, most of the tumors showed a benign phenotype. Tumor resection was complete in 60% of cases; the excision of the tumor was incomplete in subjects whose lesion involved surgically inaccessible cerebral regions, as language areas, insular structures, and basal nuclei. As for epilepsy, 26 among the 32 long-term survivors can be classified in class I of Engel's classification; 4 of them did not receive any antiepileptic treatment. Four patients showed a significant reduction in the frequency of their fits. In 2 subjects, only the frequency of seizures was minimally reduced after tumor excision; in both, a partial removal of their tumor was performed. The relationship among the results on epilepsy and the extent of surgery removal of the tumor, brain tissue removal if any, frequency of seizures in the preoperative period and the time interval between the first epileptic manifestation and surgery show that the most significant prognostic element predictive of a good control of seizures is radical resection of the tumor.

Adolescent↗

Hemimegalencephaly and intractable epilepsy: complications of hemispherectomy and their correlations with the surgical technique. A report on 15 cases.

Hemispherectomy is required in most cases of hemimegalencephaly in order to control epilepsy refractory to medical treatment. Although there is a general agreement on the effectiveness of the procedure in controlling the seizure disorder, the choice of the surgical technique is still a subject of debate. In particular, anatomical hemispherectomy is blamed to be associated with a higher incidence of surgical complications, namely hydrocephalus and hemosiderosis, than other less ablative operations such as functional hemispherectomies. A series of 15 children with hemimegalencephaly, who had undergone anatomical hemispherectomy (11 cases), functional hemispherectomy (2 cases), and hemidecortication (2 cases) at the Pediatric Neurosurgery Section, Catholic University Medical School, Rome, is reported. Twelve of these patients presented with one or more complications in their postoperative course. Temporary complications, which resolved spontaneously or following medical therapy, included fever, wound breakdown, worsening of preoperative motor deficit, unilateral third cranial nerve deficit, dystonia, and anemia. In 8 patients, postoperative complications led to a second surgical procedure. A CSF shunt was necessary in 5 children, to control a secondary hydrocephalus. Two subjects underwent a toilette of the residual cavity because of persisting chemical abnormalities in CSF parameters. In a child a cranioplasty procedure was necessary as a consequence of an infection of the hemicranial bone flap. There was no apparent correlation between the rate and the type of complications with a specific surgical procedure. On the other hand, the age factor appeared to play an important role in the occurrence of secondary hydrocephalus, as all 5 children with this complication were less than 9 months old at the time of the hemispherectomy. Surgical mortality was nil in this series.

Brain↗

Gemcitabine plus vinorelbine versus vinorelbine alone in elderly patients with advanced non-small-cell lung cancer.

PURPOSE: To evaluate whether the addition of gemcitabine (G) to vinorelbine (V) improves survival and quality of life (QoL) among elderly patients with advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Patients with NSCLC aged >/= 70 years with advanced disease were randomly allocated to receive V 30 mg/m(2) on days 1 and 8 every 3 weeks or G 1,200 mg/m(2) + V 30 mg/m(2) on days 1 and 8 every 3 weeks. The estimated sample size was 120 patients per arm, but an interim analysis of survival was planned based on the first 60 patients per arm. RESULTS: In May 1999, the survival data were analyzed of 120 eligible patients (V group = 60; G + V group = 60) who had been randomized from June 1997 to February 1999. Forty-nine patients had stage IIIB disease, and 71 had stage IV. At a median potential follow-up of 14 months (range, 3 to 22 months), 93 patients had died (G + V group = 41; V group = 52). In the G + V group, median survival time was 29 weeks and projected 1-year survival was 30%; these values were 18 weeks and 13% in the V group. According to multivariate Cox analysis, the risk of death in the G + V arm compared with the V arm was 0.48 (95% confidence interval, 0. 29 to 0.79; P <.01). Combination therapy was also associated with a clear delay in symptom and QoL deterioration. The overall response rates were 22% and 15% in the G + V and V groups, respectively. CONCLUSION: In elderly patients with NSCLC, G + V treatment is associated with significantly better survival than is V alone.

Aged↗

Neuro-cognitive development and epilepsy outcome in children with surgically treated hemimegalencephaly.

We performed a long-term follow-up of 10 patients with hemimegalencephaly and refractory epilepsy, after having treated them with hemispherectomy. Before surgery, 9 patients presented with delayed motor and cognitive development. Surgery was performed between age 5 months and 4 years and 8 months; the mean postsurgical follow-up was 5 years and 2 months. The epilepsy improved in most cases: 6 patients became seizure-free and 2 presented only dystonic fits. The cognitive outcome was less favourable, even though some improvement of cognitive competence was found in all. The neurological deficit did not increase after surgery, and the quality of life improved significantly. A good cognitive development before surgery, less severe morphological changes in neuroimaging, and functional and anatomical integrity of the "healthy" hemisphere seem to be associated with a better cognitive outcome.

Adolescent↗

Hepatic resection and percutaneous ethanol injection for the treatment of selected patients with more than one hepatocellular carcinoma.

OBJECTIVE: To report our results in a selected series of patients who had two separate hepatocellular carcinomas that were not suitable for treatment by resection alone or percutaneous injection of ethanol alone, whom we treated by a combination of the two. DESIGN: Open study. SETTING: Teaching hospital, Italy. SUBJECTS: 11 patients with Child's grade A or B cirrhosis who had two hepatocellular carcinomas in distant segments of the liver. INTERVENTIONS: Percutaneous injection of ethanol into the smaller of the two nodules before, during, or after resection. MAIN OUTCOME MEASURES: Morbidity, mortality, and recurrence. RESULTS: No patient died and there was one postoperative complication (atelectasis). During a median follow-up period of 24 months (range 8-48) two patients have developed recurrences (at 10 and 18 months). CONCLUSION: Although we have studied only a few patients for a relatively short time this double approach may be an important treatment option for suitable patients with two hepatocellular carcinomas.

Adult↗

Prognostic implications of hyperglycaemia in paediatric head injury.

Fifty children with head injury were evaluated in an attempt to establish a correlation between post-traumatic hyperglycaemia and long-term outcome. In all the patients, the blood glucose level was measured on admission and on the days following the trauma (threshold of normal value set at 150 mg/dl). Hyperglycaemia was seen more frequently in children with severe head injury than in those with mild and moderate head injury. It was present in 87.5% of the patients with a Glasgow Coma Score (GCS) < or =8 (the average blood glucose level on admission was 237.8+/-92 mg/dl), in 60% of the patients with a GCS of 9-12 (178+/-78.7 mg/dl) and only in 25% of those with a GCS of 13-15 (131.5+/-39 mg/dl). A close correlation was also seen between the outcome and the blood glucose level. In fact, the blood glucose on admission was higher in the patients with a poor outcome, i.e. in those having a Glasgow Outcome Score (GOS) of 2 or 3 and in those who died (GOS 1), than in the patients with a good outcome (GOS of 4 or 5). Finally, hyperglycaemia persisted beyond the first 24 h after trauma in all the children who died or who survived with a poor outcome. Hyperglycaemia, and especially its persistence over time, appears to be an important negative prognostic factor in children with head injury.

Adolescent↗

Cystic dilation of extrahepatic bile ducts in adulthood: diagnosis, surgical treatment and long-term results.

To evaluate the long-term results of surgery for choledohal cyst in adulthood, a series of 13 patients over the age of 16 operated on for choledochal cyst during a period of six years and followed-up for a minimum of 3 years was analyzed. Patients with type I and IVa cysts underwent extrahepatic cyst resection and Roux-en-Y hepatico-jejunostomy. Choledochoceles (type III) were managed endoscopically. No operative mortality or morbidity occurred. Type I and III cysts showed almost ideal follow-up with no sign of stricture on HIDA scan. One type IVa cyst patients developed recurrent cholangitis due to anastomotic stricture, managed percutaneously. Whenever possible, complete cyst resection and Roux-en-Y reconstruction is the treatment of choice for all extrahepatic biliary cysts. Intra- and extrahepatic dilatations are adequately treated by extrahepatic resection and careful endoscopic or radiologic surveillance. Small choledochoceles can be safely managed by endoscopic sphincterotomy.

Adolescent↗

Prognosis of medulloblastoma in infants.

The prognosis of medulloblastoma in children less than 3 years old is usually considered to be rather poor. However, recent experiences with this type of tumour seem to indicate that survival in this specific subgroup of patients can be longer than expected. Nineteen infants with posterior fossa tumours treated by the authors in the period 1983-1994, all of them with symptoms presenting during the 1st year of life and all operated on before the end of the 2nd year of life, have been retrospectively analysed. Total tumour removal was achieved in 14 cases, subtotal in 1 and partial in 3. One subject underwent only a biopsy of the tumour. In 14 patients a CSF shunt was inserted. Chemotherapy was administered to 18 out of the 19 patients in the series. At the time of the study, 11 children had died (57.9%) and 8 were alive (42.1%; mean survival 86.5 months). One patient died of complications secondary to the surgical treatment. Three patients died because of local recurrence of the tumour after apparent total excision, death supervening 5, 12 and 18 months after the surgical treatment. A further 2 patients in whom total tumour removal had been performed died 3 and 17 months after surgery of local recurrence of the disease associated with regional metastases. Progression of the residual tumour, accompanied by metastatic dissemination in 3 cases, accounted for death in the other 5 patients who did not survive. Brain stem infiltration appeared to be the most significant adverse prognostic factor. All 8 long-term survivors had their tumour totally excised. Five of them underwent radiotherapy when at least 2 years old. On the basis of the results, the authors conclude that the current prognosis of infants with medullo-blastoma is not necessarily any worse than that of older children with the same disease and that chemotherapy can be particularly useful in this subgroup of patients, as shown by 3 long-term survivals obtained in children treated with this type of therapy only.

Antineoplastic Agents↗

Poor outcome of bilateral congenital choroid plexus papillomas with extreme hydrocephalus.

Bilateral choroid plexus papillomas, or villous hypertrophy of the choroid plexus, is a very rare entity that presents serious therapeutical problems in the management of secondary oversecretive hydrocephalus. The authors report the cases of 2 infants affected by this condition, and cured with removal of the lateral ventricle papillomas and with cerebrospinal fluid (CSF) ventriculoperitoneal shunt insertions. In both cases the CSF shunting alone or the removal of only 1 papilloma did not suffice in controlling the intracranial hypertension. In both infants late outcome was unsatisfactory. The poor prognosis associated with bilateral choroid papillomas in the infants described in the present report may be explained by the precocious onset of the disease, diagnosed during fetal life, and by the marked cerebral alterations already apparent in the immediate postnatal period on the neuroradiological examinations. Repeated surgical procedures, which were necessary to control the associated hydrocephalus in these patients, might have also played a significant negative role.

Choroid Plexus Neoplasms↗

Cavernous angiomas of the brain stem in children.

Out of 27 children with intracranial cavernous angiomas observed in a 17-year period of time, 3 presented with their lesion located in the brain stem. A further 19 pediatric cases of brain stem cavernous angiomas sufficiently well described for a reliable analysis were collected from the literature and evaluated for the present study. The widespread use of MR imaging has significantly increased the possibility of recognizing brain stem cavernomas at an early age; indeed, their incidence is nowadays regarded to range between 9 and 15% of pediatric cavernous angiomas. A female predominance was noted in the present study. Focal neurological deficits are the most frequent presenting symptoms; they tend to occur acutely in most cases, although subsequent improvement may then be observed in several patients. Recurrent hemorrhages from the angioma result usually in heavier neurological signs. Surgical approaches have to be planned according to the location of the lesion, and to the site where the angioma is eventually in contact with the pial or ependymal surface. No surgical deaths were observed in these 22 children; only 2 patients presented a mild persistent worsening of their neurological status after the operation. These good results indicate that brain stem cavernous angiomas are actually a surgical lesion in spite of their apparently unfavorable location. The good prognosis is related to the anatomophysiological features of these lesions, which usually displace the brain stem structures rather than invade them, and are characterized by a low-pressure and slow blood flow circle.

Adolescent↗