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1.
QJM ; 110(12): 821-827, 2017 Dec 01.
Article in English | MEDLINE | ID: mdl-29590494

ABSTRACT

BACKGROUND: Lithium is the mainstay of treatment for bipolar disorder, mania and an augmentation therapy in patients with treatment resistant depression. It has a narrow therapeutic index, with recognized adverse multi-system and endocrine side effects. AIM: To assess the impact of lithium therapy, in particular lithium toxicity, on the development of endocrine and renal disorders in a cohort of patients in a single tertiary referral centre in Ireland. STUDY DESIGN: A retrospective analysis was performed of the prevalence of lithium toxicity and renal, thyroid and parathyroid dysfunction in our study population. METHODS: We collected laboratory data from the Clinical Chemistry department of the Adelaide and Meath Hospital incorporating the National Children's Hospital (AMNCH), Dublin, Ireland. Our study population included all patients who had at least one serum lithium measurement from January 1st 2000 to December 31st 2014 inclusive. RESULTS: A total of 580 patients were included in the study. Among our study group, 70 patients (12.1%) had 1 toxic lithium measurement (lithium level >1.2 mmol/l). 27.8% (n > 161) of patients developed stage 3 Chronic kidney Disease (CKD) or higher, which was commoner in those patients who developed toxic lithium levels (P < 0.0001) and in those who developed hypernatraemia (P > 0.0001). 16.2% of patients (n > 94) had one serum sodium >145 mmol/l during follow up. 60 patients(10.3%) had a TSH >10 mU/l, while complete suppression of TSH (<0.05 mU/l) was observed in 22 patients (3.8%) during follow-up. 4% (n > 37) of the study population had ≥1 serum corrected calcium level > 2.55 mmol/l, and 4 patients had biochemical confirmation of primary hyperparathyroidism but PTH levels were only performed in 2.8% (n > 16) of the studypopulation. CONCLUSION: Stage 3 CKD is common in patients receiving lithium therapy. Lithium toxicity is associated with CKD and hypernatraemia. Thyroid dysfunction and hypercalcaemia are common in patients receiving lithium therapy. Patients receiving lithium therapy require surveillance of renal, thyroid and bone biochemistry.


Subject(s)
Antipsychotic Agents/adverse effects , Bipolar and Related Disorders/drug therapy , Hypercalcemia/chemically induced , Hyperparathyroidism/chemically induced , Lithium Compounds/adverse effects , Renal Insufficiency/chemically induced , Antipsychotic Agents/therapeutic use , Female , Humans , Ireland , Lithium Compounds/therapeutic use , Male , Middle Aged , Retrospective Studies
2.
Alcohol Alcohol ; 50(4): 438-43, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25935157

ABSTRACT

AIM: To evaluate the effect on recurrent admission for alcohol-induced pancreatitis (that can be up to 48%) of a brief social work intervention for alcohol dependence in a single center in Ireland METHODS: Retrospective cohort study of patients admitted with acute alcohol-induced pancreatitis to a tertiary hospital in Ireland from January 2009 to December 2012. RESULTS: The relapse rate in the cohort of 160 patients with alcohol-induced pancreatitis was 28.1%. There was no difference in the relapse rate of those patients who received a social work intervention compared with those who did not (ANOVA, P = 0.229). The employment status was a significant risk factor for relapse (ANOVA, P = 0.027), but did not differ between those who did, and did not, receive the intervention. CONCLUSION: Although the cohort size did not allow great statistical power, it appears that our hospital's current social work intervention for alcohol-induced pancreatitis is ineffective in preventing relapse. Long-term prospective studies are required to formulate and better implement more efficacious interventions for such patients.


Subject(s)
Pancreatitis, Alcoholic/prevention & control , Social Work , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Ireland , Male , Middle Aged , Pancreatitis, Alcoholic/therapy , Recurrence , Retrospective Studies , Risk Factors , Young Adult
3.
Ir J Med Sci ; 178(1): 29-33, 2009 Mar.
Article in English | MEDLINE | ID: mdl-18953626

ABSTRACT

AIM: To assess the contribution of alcohol, drug abuse and suicide attempts to out of hospital cardiac arrests (OHCA) who are admitted to our intensive care unit (ICU). METHODS: Retrospective review of all OHCA admitted to the ICU over a 2-year period. RESULTS: There were 26 OHCA. Six patients survived, all of whom had a cardiac aetiology for their arrest. Ten patients arrested due to external factors (drug misuse n = 4, alcohol excess n = 1, suicide attempts n = 4 and accidental choking n = 1). All of the patients who arrested secondary to external factors were young (37.2 +/- 13.58 years), 90% were male and all died in hospital. All of the cases of drug misuse involved cocaine. CONCLUSION: Alcohol, drug misuse and suicide attempts contribute significantly to the number of OHCA which are admitted to ICU. Moreover, cocaine usage has contributed to a number of OHCA in our study.


Subject(s)
Emergency Medical Services/statistics & numerical data , Heart Arrest/epidemiology , Intensive Care Units/statistics & numerical data , Substance-Related Disorders/epidemiology , Suicide, Attempted/statistics & numerical data , APACHE , Adult , Aged , Alcoholism/epidemiology , Female , Humans , Ireland/epidemiology , Male , Middle Aged , Retrospective Studies
4.
Psychol Med ; 26(5): 975-89, 1996 Sep.
Article in English | MEDLINE | ID: mdl-8878330

ABSTRACT

The CANTAB battery of neuropsychological tests was used to compare the performance of 28 patients with unipolar depression with that of 22 age and IQ matched controls. The patients were impaired on almost all tests studied with deficits in pattern and spatial recognition memory, matching to sample, spatial span, spatial working memory and planning. Most of the patients showed at least some impairment and deficits were seen across cognitive domains. An important finding was the detrimental effect of failure on subsequent performance; having solved one problem incorrectly, patients were far more likely than controls to fail the subsequent problem. Superimposed on the general deficits, there were also specific deficits in executive tasks characteristic of frontostriatal dysfunction and deficits in mnemonic tasks characteristic of temporal lobe dysfunction. This combination of a specific form of motivational deficit, resulting in oversensitivity to negative feedback, and superimposed specific neuropsychological deficits were correlated with severity of depression. The most significant correlations were seen between mnemonic deficits and clinical rating scores. Comparisons of the deficits seen in the depressed patients in this study with other patient groups assessed with the CANTAB neuropsychological battery, showed that one of the hypotheses of the neuropsychological deficits in depression, that of "frontosubcortical' or "frontostriatal' dysfunction, was not supported. These findings are discussed in relation to the likely neural substrates of depression.


Subject(s)
Brain/physiopathology , Cognition Disorders/physiopathology , Depressive Disorder/physiopathology , Motivation , Neuropsychological Tests , Volition , Adult , Aged , Analysis of Variance , Attention/physiology , Case-Control Studies , Cognition Disorders/psychology , Depressive Disorder/psychology , Female , Helplessness, Learned , Humans , Knowledge of Results, Psychological , Male , Memory/physiology , Middle Aged , Probability , Problem Solving/physiology , Space Perception/physiology
5.
Biol Psychiatry ; 39(11): 929-37, 1996 Jun 01.
Article in English | MEDLINE | ID: mdl-9162204

ABSTRACT

Memory is emerging as a key area of neuropsychological deficit in schizophrenia, with evidence suggesting that the impairment is restricted to long-term memory. Semantic memory, the component of long-term memory containing stored representations of the meanings of words and knowledge about the world, was examined in 46 schizophrenic patients and 40 normal controls using a recently devised battery of tests. Evidence of semantic memory impairment was found which was wide ranging and substantial; in some cases it approached the levels seen in a group of 22 patients with mild-to-moderate Alzheimer's disease. Both group analysis and a more detailed examination of two single cases suggested that semantic memory impairment represents a disproportionate and possibly specific neuropsychological deficit in schizophrenia.


Subject(s)
Memory/physiology , Schizophrenic Psychology , Adolescent , Adult , Aged , Alzheimer Disease/psychology , Female , Humans , Male , Memory, Short-Term , Middle Aged , Neuropsychological Tests , Psychiatric Status Rating Scales , Wechsler Scales
6.
Cogn Neuropsychiatry ; 1(4): 289-304, 1996 Nov 01.
Article in English | MEDLINE | ID: mdl-25420060

ABSTRACT

The psychopathological basis of delusions in schizophrenia is poorly understood. The most enduring of several early theories has suggested a causal link with formal thought disorder, whereas recent approaches have proposed relationships with a variety of cognitive abnormalities. The correlations of delusions with other schizophrenic symptoms and with cognitive functions including semantic memory, executive function, and also probabilistic reasoning bias, were examined in a series of (overlapping) groups of 43-79 schizophrenic patients. Delusions were found to be significantly correlated with formal thought disorder, with evidence for a particular link between bizarreness and fragmentariness of delusions and "loosening of association". Delusions were not significantly correlated with overall intellectual function or memory, although there was some suggestion of a complex interaction between delusions, formal thought disorder, and semantic memory impairment. No association between delusions, formal thought disorder, and any measure of executive function was found. Although, as a group, schizophrenic patients showed evidence of probabilistic reasoning bias, this was unrelated to presence and severity of delusions.

7.
Br J Psychiatry ; 167(1): 51-7, 1995 Jul.
Article in English | MEDLINE | ID: mdl-7551609

ABSTRACT

BACKGROUND: While neuropsychological deficits are recognised to occur in manic-depressive psychosis during episodes of depression and to reverse with clinical recovery, it is uncertain whether they can ever be seen outside episodes of illness. METHOD: Forty-five patients meeting DSM-III-R criteria for major depression or bipolar disorder were screened using tests of memory, executive function and overall intellectual function. All testing was carried out during remission of affective symptoms. RESULTS: None of 24 young patients and 11 elderly patients scored in the impaired range on any of the tests. However, five of ten patients with chronic, severe affective disorder were impaired on one or more of the measures. On more detailed neuropsychological investigation, these five patients were found to show a variable pattern of impairment, ranging from memory and executive deficits in relative isolation, to widespread poor performance. CONCLUSIONS: Enduring neuropsychological deficits may be a feature of chronic, severe manic-depressive illness.


Subject(s)
Bipolar Disorder/diagnosis , Depressive Disorder/diagnosis , Neurocognitive Disorders/diagnosis , Neuropsychological Tests , Adult , Aged , Bipolar Disorder/psychology , Chronic Disease , Depressive Disorder/psychology , Female , Humans , Intelligence , Male , Mental Recall , Mental Status Schedule , Middle Aged , Neurocognitive Disorders/psychology
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