Search PubMed⌕ Search

Biomedical subjects

M Molloy

Publications and source records attributed to M Molloy.

69 records · Page 4Linked to original sources

Postoperative toxic shock syndrome: a case report and review of the literature.

Toxic shock syndrome is a rare and potentially lethal postoperative complication. The recognition of this disorder can be delayed by the fact that the offending wounds in postoperative toxic shock syndrome are classically benign in appearance. The infrequency with which this syndrome is encountered can also prolong the interval between the onset of symptoms and institution of effective therapy. A case of toxic shock syndrome complicating an abdominoplasty performed at the Plastic Surgery Service of Walter Reed Army Medical Center is presented, and the literature available on toxic shock syndrome in the postoperative patient is discussed.

Abdomen↗

A multicase family study of rheumatoid arthritis in south west Ireland.

A study of 26 families with multiple cases of RA was conducted in South West Ireland. In 149 relatives examined, 67 cases of RA were identified. An analysis of affected sibling pairs and trios revealed significant linkage between HLA and RA (p less than 0.05). A high frequency of DR4 was observed in probands (80.7 per cent) and affected members (74.6 per cent) compared with controls (18 per cent). An elevated frequency of the haplotypes A2-B44-DR4 (19.2 per cent) and A2-Bw62-DR4 (5.7 per cent) was seen in the affected sample. HLA-Bw62 was at raised frequency in probands (19.2 per cent) compared with controls (9 per cent). The haplotype frequency of A2-B44-DR4 was raised in affected females and A2-Bw62-DR4 in affected males. A low haplotype frequency of A1-B8-DR3 was found in all RA subjects. Disease severity (clinical and radiological criteria) was associated with DR4, but this did not reach statistical significance. A high incidence of extra-articular features of RA was observed, with DR4 occurring in all cases of vasculitis (75 per cent of whom were DR4 homozygous).

Adult↗

Digital fluoroscopy with a conventional fluoroscopic room and a nuclear medicine computer system.

The potential of a commercially-available nuclear medicine computer, with a digital video interface, supplied by its manufacturers, for digital fluoroscopy is described. In the absence of universally accepted standards against which the performance of digital fluoroscopy systems may be judged, the parameters included in the description of this system included linearity, uniformity, signal-to-noise ratio, matrix size at given frame rates and study sizes. In addition some examples of clinical studies involving subtraction are presented.

Cerebral Angiography↗

A case of toxic epidermal necrolysis secondary to indomethacin.

A middle-aged female with rheumatoid arthritis was commenced on indomethacin. Four days later she developed the classical clinical and histological features of toxic epidermal necrolysis (TEN). The association with indomethacin has not previously been reported.

Arthritis, Rheumatoid↗

Expectation and patient preference -- does it matter?

Admission to clinical trials is often based on the assumption of homogeneity of the population. A group of 60 patients, all with pain in the neck or shoulder of at least 3 months duration, were studied. Expectation was graded before treatments were started by sharing out 100 points between freedom from side effects, pain relief, depression relief, improved mobility, improved sleep and speed of action. A double-blind crossover study of two established anti-inflammatory analgesics and placebo was carried out. Using analogue scales, patients were asked to grade their response. Side effects were recorded, and preference was established at the end of the study.Although all the patients were in sufficient pain to require medical attention, some rated relief of depression, improvement in sleep or lack of side effects as more important than pain relief. Differences between drug and placebo were most clearly demonstrated in those patients whose main concern was improved mobility. In our view it is important to select patients who are in need of a dominant property of a drug for a trial of this property and this may have ramifications across the medical spectrum.

Apazone↗

The prevalence of coeliac disease among female subjects having bone densitometry.

BACKGROUND: Osteoporosis frequently complicates coeliac disease but most studies focus on symptomatic patients at the time of diagnosis. Screening tests have revealed that many individuals with coeliac disease have mild, atypical, or absent symptoms. AIM: To evaluate the relationship between coeliac disease and osteopenia or osteoporosis in female subjects attending for bone densitometry. METHODS: We studied 371 female subjects attending for bone densitometry, without secondary causes of osteoporosis and included those with normal and with reduced bone mineral density. Mineral density was measured by dual energy X-ray absorptiometry. Screening for coeliac disease was by measurement of anti-endomysial antibody by indirect immunofluorescence. RESULTS: Two of 115 (1.7%) female subjects with normal bone density and five of 256 (1.9%) female subjects with sub-normal bone density were positive for endomysial antibody. Five subjects who underwent small bowel biopsy had histological changes suggestive of coeliac disease. CONCLUSIONS: In females referred for bone densitometry, endomysial antibody positivity was not more prevalent among those with reduced bone mineral density. Examining only patients with clinically detected coeliac disease may overestimate the frequency of complications. This study does not support population screening for coeliac disease in an area with a high frequency of the condition.

Absorptiometry, Photon↗

Cholangiography during laparoscopic cholecystectomy--cumulative sum analysis of an institutional learning curve.

The ability to perform intraoperative cholangiography during laparoscopic cholecystectomy is an essential skill for the laparoscopic biliary surgeon. The volume of experience required to be able to consistently obtain a cholangiogram during laparoscopic cholecystectomy has not been determined. Cumulative sum analysis is a statistical technique which generates a graphical display that identifies periods of performance that fall below a predetermined standard for a given task. The cumulative sum (S(n)) for a series of observations is defined as: S(n)= summation operatorX(I) - X(o), where X(I) = 0 for a success, X(I) = 1 for a failure, and X(o) is the acceptable failure rate for the process under study. This function is plotted against the number of observations to create a curve. When the curve has a positive slope, the acceptable failure rate is being exceeded. When it reaches a plateau, the observed failure rate is equal to the acceptable failure rate. When the curve has a negative slope, the observed failure rate is lower than the acceptable failure rate. We performed a cumulative sum analysis of the first 97 intraoperative cholangiograms attempted during lap-aroscopic cholecystectomy at our institution. The results demonstrated that 46 cases were required to reach a level of proficiency where a cholangiogram could be obtained in 95% of attempts. Success rates of 85% and 90% were achieved at 16 and 25 cases, respectively. This form of analysis is a useful tool for estimating the number of attempts required to achieve a desired success rate when learning new procedures.

Adult↗

Low dose intraarterial thrombolysis with tissue plasminogen activator: does it deliver as promised?

The widespread use of intraarterial thrombolytic therapy has been based on perceived benefits over operative treatment and the downgrading of the magnitude of subsequent surgery. Thirty-three patients who had thrombolysis for peripheral artery occlusion were retrospectively analyzed at St. James's Hospital from 1991 to 1997. One patient received streptokinase unsuccessfully. Five other patient's records were inadequate for analysis. Twenty-seven patient's notes were analyzed for risk, duration of occlusion, duration of treatment, dosage of tissue plasminogen activator (tPA) and conduits thrombolysed. There were 15 males and 12 females. The mean age was 62 years (range, 20-87). Fourteen were current or reformed smokers. Five were diabetic. Indications for treatment included acute graft occlusion (n=13), embolus (n=6), and primary and secondary arterial thrombosis (n=8). Duration of occlusion was less than 24 hours in seven, 1 to 7 days in ten, and more than 7 days in ten patients. Twelve (44.44%) patients had complete clot lysis, four (14.81%) had partial clearance, and 11 (40.74%) remained occluded. Eight (29.63%) had serious complications including one death. Eighteen (66.66%) patients needed further surgical intervention to maintain graft patency. Data were analyzed using the chi-square and pooled t test. No significant difference was observed in results from thrombolysis from different conduits, gender, etiology, or smoking history. Increased duration of tPA administration was associated with an increased risk of failure. Administration of total dosages greater than 60 mg was associated with a higher risk of failure. Diabetics had a poor outcome (p=0.0520). Only 44 % of patients successfully underwent lysis. A primary surgical option may be a more sensible course than lysis, given that the vast majority of patients ended up having surgery anyway.

Adult↗