Ageing and Down syndrome: Neurocognitive characteristics and pharmacological treatment.

Individuals with Down Syndrome (DS) are commonly characterized by unique neurocognitive and neurobehavioural profiles that emerge within specific stages in the developmental continuum. A plethora of studies have confirmed DS's relationship to premature aging and subsequent cognitive decline. Due to having three copies of the amyloid precursor protein (APP) gene which results in amyloid-beta plaque deposition, the cognitive decline often resembles the decline observed in Alzheimer's disease. More specifically, as individuals with DS mature in age (>40) they experience a dramatic increase in difficulties in several cognitive domains, such as language, visuo-spatial abilities, executive functions, working memory, etc. Especially, frontal functions are reported to show an inverse correlation with age. In contrast to the pronounced and well-described neuropsychological deficits, psychiatric symptoms presented by this patient category are not uniform. Mental health disturbances commonly include general anxiety, obsessive-compulsive or oppositional/aggressive behaviors, depression and sleep disorders, as well as self-injury and behavior belonging to autistic spectrum disorders. Therefore, the purpose of the present review is twofold. Our first goal is to depict the cognitive and behavioural phenotype of adults with DS and our second goal is to review the current treatment options available for the behavioral and psychological symptoms, with an emphasis put on the quality of evidence available through meta-analyses and appraising critically the anecdotal treatment often applied. We also present a review on the psychotropic medication, especially acetylcholinesterase inhibitors, that can potentially slow the progression of cognitive decline of those patients. Finally, novel therapeutic strategies, psychological interventions and future diagnostic and therapeutic challenges are discussed.

Web-based resources for critical care education.

OBJECTIVE: To identify, catalog, and critically evaluate Web-based resources for critical care education. DATA SOURCES: A multilevel search strategy was utilized. Literature searches were conducted (from 1996 to September 30, 2010) using OVID-MEDLINE, PubMed, and the Cumulative Index to Nursing and Allied Health Literature with the terms "Web-based learning," "computer-assisted instruction," "e-learning," "critical care," "tutorials," "continuing education," "virtual learning," and "Web-based education." The Web sites of relevant critical care organizations (American College of Chest Physicians, American Society of Anesthesiologists, American Thoracic Society, European Society of Intensive Care Medicine, Society of Critical Care Medicine, World Federation of Societies of Intensive and Critical Care Medicine, American Association of Critical Care Nurses, and World Federation of Critical Care Nurses) were reviewed for the availability of e-learning resources. Finally, Internet searches and e-mail queries to critical care medicine fellowship program directors and members of national and international acute/critical care listserves were conducted to 1) identify the use of and 2) review and critique Web-based resources for critical care education. DATA EXTRACTION AND DATA SYNTHESIS: To ensure credibility of Web site information, Web sites were reviewed by three independent reviewers on the basis of the criteria of authority, objectivity, authenticity, accuracy, timeliness, relevance, and efficiency in conjunction with suggested formats for evaluating Web sites in the medical literature. MEASUREMENTS AND MAIN RESULTS: Literature searches using OVID-MEDLINE, PubMed, and the Cumulative Index to Nursing and Allied Health Literature resulted in >250 citations. Those pertinent to critical care provide examples of the integration of e-learning techniques, the development of specific resources, reports of the use of types of e-learning, including interactive tutorials, case studies, and simulation, and reports of student or learner satisfaction, among other general reviews of the benefits of utilizing e-learning. Review of the Web sites of relevant critical care organizations revealed the existence of a number of e-learning resources, including online critical care courses, tutorials, podcasts, webcasts, slide sets, and continuing medical education resources, some requiring membership or a fee to access. Respondents to listserve queries (>100) and critical care medicine fellowship director and advanced practice nursing educator e-mail queries (>50) identified the use of a number of tutorials, self-directed learning modules, and video-enhanced programs for critical care education and practice. CONCLUSIONS: In all, >135 Web-based education resources exist, including video Web resources for critical care education in a variety of e-learning formats, such as tutorials, self-directed learning modules, interactive case studies, webcasts, podcasts, and video-enhanced programs. As identified by critical care educators and practitioners, e-learning is actively being integrated into critical care medicine and nursing training programs for continuing medical education and competency training purposes. Knowledge of available Web-based educational resources may enhance critical care practitioners' ongoing learning and clinical competence, although this has not been objectively measured to date.

Electrocardiographic changes with segmental akinesia after chloral hydrate overdose.

We report a case of deliberate ingestion of 12.5 g chloral hydrate in a 25-year-old psychiatric patient. Coma and life-threatening ventricular dysrhythmias were observed soon after ingestion. Repeated electrocardiographic examination was consistent with ischemic changes appearing on day 3. They were associated with segmental abnormal left ventricular wall motion by echocardiography. A coronary angiogram was performed and was normal. Toxic metabolites of chloral hydrate, trichloroethanol and trichloroacetic acid were found in the urine until day 7. This case illustrates that with halogenated aliphatic hydrocarbons, sustained changes in cardiac contractility may occur in addition to early life-threatening ventricular dysrhythmias.

Ethics roundtable debate: withdrawal of tube feeding in a patient with persistent vegetative state where the patients wishes are unclear and there is family dissension.

The decision to withdraw or withhold life supporting treatment in moribund patients is difficult under any circumstances. When the patient becomes incompetent to clarify their wishes regarding continued maintenance in long-term facilities, surrogates sometimes cannot agree, further clouding the issue. We examine a case where the State's interests come into play, forcing a controversial resolution.

Angiotensin-converting enzyme inhibitors and angiotensin II receptor antagonists.

The use of angiotensin-converting enzyme inhibitors (ACEIs) has been implicated in many cases of angioedema, but, given the potential mechanism of this complication, it was not expected to be caused by angiotensin II receptor blockers (ARBs). However, in the past few years, scattered reports of angioedema associated with ARBs have appeared in the medical literature. We performed a retrospective chart review from January 1, 1998, through June 30, 2003, and a review of the literature. During this time, we managed head and neck angioedema induced by ACEIs (n = 27) and ARBs (n = 4) in 31 patients. All of them had significant mucosal swelling, and in some of them dyspnea and dysphagia coexisted. The most frequently involved areas were the oral tongue (13 cases), uvula and soft palate (5 cases), and larynx, mouth floor, and lips (3 cases each). Angioedema may be a more common complication of ACEI and/or ARB use than originally thought. This complication may occur after long-term use of these drugs. We advise that ARBs not be prescribed to patients with a history of angioedema, particularly that due to the use of ACEIs.

Critical care of the head and neck patient.

The patient with head and neck disease has several peculiarities that need to be recognized for the treating team to offer optimal care. These arise from the primary disorders (eg, head and neck cancer or injuries) and the morbidity they might cause, the associated comorbidities, and the possible complications of treatment. A team approach involving the surgeon, the intensivist, and other caretaking personnel is essential to achieve high-quality care and ensure the best results possible.

Lump sensation in the throat caused by tumors in the preepiglottic space.

Lump sensation in the throat is a common symptom, which accounts for 4% of first patient visits to Otorhinolaryngologic clinics. The etiology includes abnormalities of the thyroid gland, cysts, tumors and chronic infections of the pharynx, larynx, esophagus and tongue base, gastroesophageal reflux and anxiety disorders. In this article we describe two rare cases of lump sensation caused by masses in the preepiglottic space and we stress the importance of thorough investigation to exclude any possible non functional causes.

Rhabdomyolysis following Acute Extended-Release Quetiapine Poisoning: A Case Report.

Background. During the past few years, there have been a number of case reports concerning rhabdomyolysis following quetiapine poisoning; however, there has been none concerning the medication in its extended-release form. Methods. We present the case report of a 48-year-old man presenting a major depressive disorder and borderline personality disorder, who after voluntary intoxication with 12000 mg of quetiapine extended-release developed signs of acute rhabdomyolysis. Results. The rhabdomyolysis was confirmed by the laboratory and the clinical findings, with elevated levels of creatinine, creatine phosphokinase, and CRP. Discussion. We would like to pinpoint the importance of this complication and our concern of prescribing it for psychiatric patients with chronic somatic comorbidities.

Diagnosis of tetanus by an otorhinolaryngologist and immunity against tetanus among adults on the island of Crete.

BACKGROUND: Tetanus (lockjaw) is a rare disease in developed countries. METHODS: An otorhinolaryngologist can be the first physician to see a patient with tetanus. In our department, we have seen 10 such cases presenting with head and neck symptoms. We report 2 of these cases followed by an investigation of the immune status of the adult Cretan population against tetanus using 200 random patients who visited our clinic. RESULTS: A negative history of complete childhood immunization was recorded in 37% of individuals. Of the male population, 88.5% had received active immunization during adulthood, although 47% had received all three doses. Only 12.6% of the females had received full-dose immunization during adulthood. Overall, only 8.5% of the studied population had received either complete immunization or a scheduled booster dose during the last decade. CONCLUSIONS: In many cases, an otorhinolaryngologist can be the first physician to examine a patient with tetanus. The incidence of the disease in Crete, Greece, is significantly higher than in most parts of developed countries.

Propofol infusion syndrome associated with short-term large-dose infusion during surgical anesthesia in an adult.

In this case report we describe a case of propofol infusion syndrome in an adult after a short-term infusion of large-dose propofol during a neurosurgical procedure. Large-dose propofol (9 mg.kg(-1).h(-1)) was given for only 3 h during surgery and was followed by a small-dose infusion (2.3 mg.kg(-1).h(-1)) for 20 h postoperatively. The patient had also received large doses of methylprednisolone. He developed a marked lactic acidosis with mild biological signs of renal impairment and rhabdomyolysis but no cardiocirculatory failure. There were no other evident causes of lactic acidosis as documented by laboratory data. We believe this is the first report of reversible lactic acidosis associated with a short duration of large-dose propofol anesthesia.