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Amtul R Carmichael

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Journal articles

2008
 
DOI   
PMID 
Chaminda Sellahewa, Peter Nightingale, Amtul R Carmichael (2008)  Women with large breasts are at an increased risk of advanced breast cancer.   Int Semin Surg Oncol 5: 06  
Abstract: ABSTRACT: BACKGROUND: The risk of nodal metastasis is higher in women with bigger breast. It is not clear if this increase is due to the size of the breast (largely related to obesity) or is the result of larger tumour size at presentation (due to delayed diagnosis). It is hypothesised that women with large breasts are more likely to have node positive disease mainly attributable to their breast size. PATIENTS AND METHODS: One hundred and twenty consecutive patients who underwent mastectomy during the year 2004 and 2005 for primary breast cancers in a large Teaching Hospital were included in the study. Patient's variable and tumour variable were collected and analysed by SPSS(R) computer programme. RESULTS: It was found that big breasted women (those patients with mastectomy weight greater than 800 g) had a significantly greater tumour size than those with smaller breasts (p = 0.019, Mann-Whitney test) but there was no significant difference in grade (Kendall's tau-b = 0.055, p = 0.57) or lymph node positivity (Kendall's tau-b = 0.011, p = 0.93) between the two groups. Although, the tumour size was significantly greater in those with lymph node metastases (p < 0.001) but mastectomy weight was not found to be significantly greater in those with lymph node metastases (p = 0.11). For patients with similar tumour sizes mastectomy weight was not significantly greater in those patients with lymph node metastases (p = 0.28). CONCLUSION: It is concluded that increased incidence of lymph node positivity at presentation big-breasted women is because of larger size of the primary tumour and not due to the size of the breast alone.
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PMID 
Chaminda Sellahewa, Peter Nightingale, Amtul R Carmichael (2008)  Obesity and HER 2 overexpression: a common factor for poor prognosis of breast cancer.   Int Semin Surg Oncol 5: 02  
Abstract: ABSTRACT: BACKGROUND: Both obesity and over-expression of HER II are associated with poor prognosis of breast cancer. In vitro experiments suggest that anti-tumour activity of the anti-obesity drug Orlistat is likely to be due to transcriptional suppression of HER II expression. The overexpression of HER II is also positively correlated with other markers of prognosis of breast cancer such as cathepsin expression. HYPOTHESIS: The hypothesis we tested was that the obese women with breast cancer might over-express HER II more often than their lean counterparts to account for the poor prognosis. PATIENTS AND METHODS: One hundred consecutive patients were included in this study. Their body mass indexes were correlated with overexpression of HER II. RESULTS: There was also no association between oestrogen or progesterone receptor positivity and obesity or HER II over expression in premenopausal or post-menopausal women with breast cancer. CONCLUSION: The present study demonstrated that the poor outcome of breast cancer in obese patients is not due to over expression of HER II.
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2007
 
DOI   
PMID 
T D Pinkney, P Nightingale, A R Carmichael (2007)  A prospective study of use of a clinicopathological score to select patients for the type of axillary surgery.   Eur J Surg Oncol 33: 2. 153-156 Mar  
Abstract: AIMS: The aim of this study was to prospectively assess a previously described and independently validated clinicopathological score for counselling and selecting patients for sentinel node biopsy or axillary clearance. The clinicopathological score is based on the size of primary tumour, grade of primary tumour, age of the patient, quadrant of the breast and lymphovascular invasion, which are all independent predictors of lymph node involvement. The clinicopathological score may assist patients to decide if they would benefit from sentinel node biopsy or axillary clearance as a primary procedure. METHODS: All patients with invasive breast cancer were counselled for the possible rate of lymph node positivity, need for a second operation and false negative rate for sentinel node biopsy. Based on a previously validated clinicopathological score (Table 1), patients with a score of 10 or below were classed as less likely to have positive lymph nodes and hence were offered for minimally invasive axillary surgery and patients with a score of 11 or above were regarded to have high risk of nodal involvement and were counselled for axillary clearance. RESULTS: Only 3 of 31 patients in the low score group had axillary metastasis and needed further axillary treatment. The node positivity rate in the low score group was 10% compared to 63% for the high score group. CONCLUSION: It is concluded that until pre-operative axillary staging becomes widely available, by using the clinicopathological score for patient's selection for minimally invasive axillary surgery, it may be possible to avoid a second axillary procedure in a large majority of patients.
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DOI   
PMID 
N A Qureshi, A Beresford, S Sami, R Boparai, S Gosh, A R Carmichael (2007)  Imprint cytology of needle core-biopsy specimens of breast lesions: is it a useful adjunt to rapid assessment breast clinics?   Breast 16: 1. 81-85 Feb  
Abstract: This study aimed at assessing the practicability of imprint cytology (IC) of core biopsy (CB) specimens in order to achieve one-stop diagnosis of breast lesions. In total, 199 symptomatic patients underwent free-hand CB of the suspected breast lesions. The slides were stained by Diff-QuikO and reported independently of histological reporting. For practical reasons cytology specimens were graded as follows: C1=inadequate, as less than 4 groups of epithelial cells were seen, C2=benign, C3=probably benign, C4=probably malignant and C5=positive for malignancy. The results of IC were correlated with CB histology. Absolute sensitivity of the IC was 85.0% and complete sensitivity was 89.2% when correlated with CB. Specificity (biopsy cases only) of IC was 53.1% while full specificity was 53.1%. Positive predictive value of C5 was 99.3%, C4 55.6 % and C3 was 100%. Overall suspicious rate was 5.5%. It was concluded that IC is a reliable way of diagnosing symptomatic breast lesions in one-stop breast clinic and retains the advantage of pre-operative availability of detailed pathological characteristics of tumours for treatment planning.
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2006
 
DOI   
PMID 
Mangal Veerysami, Mark Freeth, Amtul Razzaq Carmichael, Paul Carmichael (2006)  Wegener's granulomatosis of the breast.   Breast J 12: 3. 268-270 May/Jun  
Abstract: A 60-year-old woman presented with a painless self-detected breast lump. After wide local excision, the histology of this radiologically suspicious lump turned out to be an inflammatory lesion with granulomatous foci, suggesting a diagnosis of granulomatous mastitis. Prior to the excision biopsy, this woman had suffered from and been treated for anterior uveitis, secretory otitis media, and proximal myopathy. Four weeks later, a skin biopsy of a rapidly developing widespread petechial rash, mainly affecting the lower limbs, confirmed the diagnosis as Wegener's granulomatosis. Treatment with intravenous steroids and later cyclophosphamide produced rapid remission.
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A R Carmichael, O Bashayan, P Nightingale (2006)  Objective analyses of mastalgia in breast clinics: is breast pain questionaire a useful tool in a busy breast clinic?   Breast 15: 4. 498-502 Aug  
Abstract: The aim of this study was to investigate the feasibility of use of breast pain questionnaire (BPQ), a short, focussed and robustly designed tool to assess severity of mastalgia and its impact on quality of life, in a busy breast clinic. Seventy-four consecutive women completed BPQ prior to their consultation with a Breast Surgeon. Based on the BPQ score, mastalgia was graded as mild (score 0-100) in 26%, moderate (score 101-200) in 59% and severe (score >200) in 15% of patients. In 93% of patients breast pain lasted for more than 5 days and visual analogue score (VAS) was more than 3.5 in 82% of patients. The breast pain was described as mild (12%) discomforting (55%), distressing (22%) excruciating (3%) or horrible (8%). All results are presented as median (interquartile ranges). Out of maximum possible 100, overall pain rating was 17(9-31), percent sensory component was 21(12-33) and percent affective component was 0(0-17). The percent VAS was 60(40-80), percent pain index was 40(40-60) and quality of life score (maximum possible 60) was 20(0-40). Of maximum possible score of 360, total breast pain was 137(99-180). In conclusion BPQ can be used routinely in a busy breast clinic as a quick, user-friendly and reliable tool to assess the degree and severity of breast pain in order to provide an organised approach to the management of mastalgia.
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DOI   
PMID 
A R Carmichael, K Aparanji, P Nightingale, R Boparai, P S Stonelake (2006)  A clinicopathological scoring system to select breast cancer patients for sentinel node biopsy.   Eur J Surg Oncol 32: 10. 1170-1174 Dec  
Abstract: BACKGROUND: Selecting patients for sentinel node biopsy, based on grade and size of the primary tumour, often results in the need for a second operation of axillary clearance since intra-operative pathological assessment of sentinel node is in its evolution at present. It may be possible to refine the clinical criteria to select patients for the type of axillary surgery. AIM: By using a score based on clinicopathological predictors of axillary lymph node involvement, we hypothesise that it may be possible to identify patients at high or low risk of nodal involvement. This information can be used to assist patients to make informed decision regarding risks and benefits of sentinel node biopsy or axillary clearance. PATIENTS AND METHODS: A score was devised based on the clinicopathological variables of 113 patients to assess the likelihood of lymph node positivity. This score was validated on an independent data set of 89 patients who underwent sentinel node biopsy and axillary surgery. Based on the score, patients were divided into two groups, high score and low score groups. For the low score group, lymph node positivity was 18% for the original score and 24% for the validation score. Lymph node positivity rate was 67% for the high score group for the original series and 65% for the validation series of patients. CONCLUSION: A clinicopathological scoring system can assist in selecting patients with breast cancer for sentinel node biopsy.
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N A Qureshi, M Tahir, A R Carmichael (2006)  Granular cell tumour of the soft tissues: a case report and literature review.   Int Semin Surg Oncol 3: 08  
Abstract: Granular cell tumours (GCT) of the soft tissues are rare benign tumours but some time may be difficult to distinguish from malignant neoplasms. It is important that clinicians are aware of their existence. We present a new case of GCT of the soft tissues followed by a brief review of literature.
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PMID 
A R Carmichael (2006)  Obesity as a risk factor for development and poor prognosis of breast cancer.   BJOG 113: 10. 1160-1166 Oct  
Abstract: The evidence that obesity adversely affects women's health is overwhelming and indisputable. The risk of postmenopausal breast cancer increases with obesity; measured as weight gain, body mass index, waist-hip ratio or percent body fat. It is also established that obesity is associated with poor prognosis of breast cancer. This review examines in detail the possible mechanisms by which obesity causes poor prognosis of breast cancer such as estrogenic activity, advanced or more aggressive disease at diagnosis and high likelihood of both local and systemic treatment failure. After careful consideration of the available evidence, the author concludes that obesity contributes towards development and poor prognosis of breast cancer; therefore, weight management should be an integral part of any strategy to prevent and improve the outcome of breast cancer.
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PMID 
A R Carmichael (2006)  Obesity and prognosis of breast cancer.   Obes Rev 7: 4. 333-340 Nov  
Abstract: Obesity has a complicated relationship to both breast cancer risk and the clinical behaviour of the established disease. It is suggested that obesity is associated with both an increased risk of developing breast cancer risk and worse prognosis after disease onset. In post-menopausal women, various measures of obesity such as body mass index, weight, weight gain and waist : hip ratio have all been positively associated with risk of developing breast cancer. In most but not all case-control and prospective cohort studies, an inverse relationship has been found between weight and breast cancer among pre-menopausal women. Some data suggest that adult weight gain and central obesity increase the risk of pre-menopausal breast cancer. Obesity at the time of diagnosis is thought to be significant as a poor prognostic factor. Obesity is associated with adverse outcomes in both pre- and post-menopausal women with breast cancer. Many cancer survivors seek ways to minimize the risk of recurrence and death because of breast cancer. Despite complex and at times controversial data, enough evidence is available at present to suggest that weight management should be a part of the strategy to prevent the occurrence, recurrence and death because of breast cancer. In this review the effect of obesity on the prognosis of breast cancer is examined in detail.
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2004
 
DOI   
PMID 
A R Carmichael, T Bates (2004)  Obesity and breast cancer: a review of the literature.   Breast 13: 2. 85-92 Apr  
Abstract: A woman's build, the risk of breast cancer and its subsequent prognosis seem to be related. In most but not all case-control and prospective cohort studies, an inverse relationship has been found between weight and breast cancer among premenopausal women. However, most large epidemiological studies have found that overweight or obese women are at increased risk of developing postmenopausal breast cancer. It is suggested that higher body mass index is associated with a more advanced stage of breast cancer at diagnosis in terms of tumour size but data on lymph node status is not so consistent. All treatment modalities for breast cancer such as surgery, radiotherapy, chemotherapy and hormonal treatment may be adversely affected by the presence of obesity. The overall and disease-free survival is worse in most but not all studies of prognosis of obese pre- and postmenopausal women with breast cancer.
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DOI   
PMID 
A R Carmichael, S Bendall, L Lockerbie, R J Prescott, T Bates (2004)  Does obesity compromise survival in women with breast cancer?   Breast 13: 2. 93-96 Apr  
Abstract: Obesity, measured by high body mass index (BMI >30 kg/m2) is associated with an increased risk of postmenopausal breast cancer but the effect of obesity on prognosis is not clear. A prospectively accrued and regularly validated database of 1579 patients with breast cancer treated in a district general hospital between 1963 and 1999 was analysed for clinical and pathological tumour characteristics including the family history, grade, tumour type, treatment and outcome. The risk factors and outcome of obese and non-obese patients were compared. Breast cancer in obese women was associated with significantly larger tumour size and worse Nottingham prognostic index. There was no statistically significant difference in overall and disease-free survival between obese and non-obese group. Hazard ratios (95% Cl) were 0.81 (0.62-1.06) and 0.80 (0.63-1.01), respectively. In the present study, obesity is not an indicator of worst prognosis of breast cancer.
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A R Carmichael, G Ninkovic, R Boparai (2004)  The impact of intra-operative specimen radiographs on specimen weights for wide local excision of breast cancer.   Breast 13: 4. 325-328 Aug  
Abstract: The ultimate goal of breast conserving surgery (BCS) is to achieve survival and local control rates similar to those for mastectomy while providing improved cosmetic and functional results. The volume of breast tissue removed is the most significant determinant of the final cosmetic outcome of BCS. We hypothesised that intra-operative specimen radiograph (IOSR) during BCS may guide the surgeon to achieve clear radiographic and histological margins with minimum normal breast tissue excision, thus preserving cosmetic appearance. The aim of this study was to evaluate the effect of introducing the policy of IOSR on the weight of specimens of wide local excision of palpable invasive breast cancer. All consecutive patients who underwent therapeutic wide local excision for palpable invasive breast cancer from 01/01/02 to 31/03/03 were included in this study. A policy of IOSR was introduced in October 2002, thus all BCS done after 01/10/2002 underwent IOSR. The mean (S.D.) specimen weight for the no intra-operative specimen radiograph (NIOSR) group was 74 grams compared to 46 g in the IOSR group, (P = 0.0241, unpaired t-test with Welch's correction) and the mean tumour size for the NIOSR was 23(13)mm and for IOSR was 21(8)mm (P = ns, unpaired t-test with Welch's correction). A histologically clear circumferential margin rate in the IOSR group was 96% compared to 82% in the NIOSR group. Five patients in the IOSR group and 11 in NIOSR group had positive anterior or posterior margin. For these patients no further surgical excision was possible as BCS was performed from skin to pectoral fascia. Therefore a radiation boost was given to the site of excision. Only one patient in the IOSR group needed further breast surgery (mastectomy) for a positive inferior (toward nipple) margin for a mammographically occult tumour, while 11 patients in the NIOSR group required further breast surgery. In conclusion, IOSR is a simple, effective and economical way of assessing adequacy of margins while minimising the breast tissue excised during wide local excision of palpable breast cancers.
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DOI   
PMID 
A R Carmichael, A Berresford, A Sami, R Boparai (2004)  Imprint cytology of needle core-biopsy specimens of breast lesion: is it best of both worlds?   Breast 13: 3. 232-234 Jun  
Abstract: The concept and working of one-stop breast clinic has been evolving over the last 10 years. With more frequent use of core biopsy by the dedicated breast units, one-stop results service cannot be provided. The purpose of this study was to examine the feasibility of the use of imprint cytology of the core-biopsy specimens of breast lesions in a one-stop setting, in order to spare patients pain and suffering of a needle test without anaesthetic while retaining the advantages of availability of greater pathological characteristics of tumours by core biopsy. Forty-one consecutive core-biopsy specimens from symptomatic patients who underwent free hand or ultrasound-guided core biopsies of the suspected breast lesion were rolled on a glass slide to obtain imprint cytology. The cytological reporting was done independent of histological reporting of core biopsy. Overall concordance between imprint cytology and histology was 90%. For imprint cytology overall sensitivity was 91% and specificity was 89%. The positive predictive value was 97% and negative predictive value was 73%. Imprint cytology was found to be a quick, reliable and effective way of diagnosing breast lesions in breast clinic.
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2003
 
PMID 
A R Carmichael, E D C Anderson, U Chetty, J M Dixon (2003)  Does local surgery have a role in the management of stage IV breast cancer?   Eur J Surg Oncol 29: 1. 17-19 Feb  
Abstract: AIMS: There are no uniformly agreed guidelines regarding the treatment of local breast cancer in patients who have stable metastatic disease. The aim of this study was to define the role of breast surgery in the management of stage IV disease by reviewing the clinical outcome in patients with stage IV disease submitted to surgery in a regional breast cancer unit. METHODS: All patients who underwent breast surgery from 1993 to 1999 and had known metastatic disease or who were diagnosed with metastases within one month of surgery were identified and their clinical outcome was studied using death and local recurrence as end points. RESULTS: Median survival after breast surgery was 23 months. Ten of the 20 patients were alive with no local disease at 20 months mean follow-up. Three of 10 patients who died developed local recurrence and had local disease at the time of death. CONCLUSION: The local surgery does have a role in controlling the primary cancer and controlling local symptoms in a selected group of patients with stable metastatic disease.
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PMID 
Paul Carmichael, Amtul R Carmichael (2003)  Acute renal failure in the surgical setting.   ANZ J Surg 73: 3. 144-153 Mar  
Abstract: Acute renal failure (ARF) is an unwelcome complication of major surgical procedures that contributes to surgical morbidity and mortality. Acute renal failure associated with surgery may account for 18-47% of all cases of hospital-acquired ARF. The overall incidence of ARF in surgical patients has been estimated at 1.2%, although is higher in at-risk groups. Mortality of patients with ARF remains disturbingly high, ranging from 25% to 90%, despite advances in dialysis and intensive care support. Appreciation of at-risk surgical populations coupled with intensive perioperative care has the capacity to reduce the incidence of ARF and by implication mortality. Developments in understanding the pathophysiology of ARF may eventually result in newer therapeutic strategies to either prevent or accelerate recovery from ARF. At present the best form of treatment is prevention. In this review the epidemiology, pathophysiology, diagnosis, treatment and possible prevention of ARF will be discussed.
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2002
 
PMID 
A R Carmichael, G Tate, R F G J King, H M Sue-Ling, D Johnston (2002)  Effects of the Magenstrasse and Mill operation for obesity on plasma plasminogen activator inhibitor type 1, tissue plasminogen activator, fibrinogen and insulin.   Pathophysiol Haemost Thromb 32: 1. 40-43 Jan/Feb  
Abstract: Plasminogen activator inhibitor 1 (PAI-1), tissue plasminogen activator (t-PA), fibrinogen and insulin were measured in 43 patients 3 years after they had undergone the Magenstrasse and Mill (MM) procedure and in 43 morbidly obese (MO) patients. Mean plasma PAI-1 was 61 ng/ml in the MO group compared to 30 ng/ml in the MM group (p < 0.0001); mean plasma t-PA was 10 ng/ml in the MO group compared to 7 ng/ml in the MM group (p < 0.001). Mean fibrinogen was 3.6 g/l in the MO group compared to 3.2 g/l in the MM group (p < 0.05). Mean plasma insulin levels were 32 U/ml in the MO group compared to 15 U/ml in the MM group. These changes suggest that use of the MM procedure may reduce mortality and morbidity from coronary heart disease in these high-risk obese patients.
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PMID 
A R Carmichael, S Bendall, L Lockerbie, R Prescott, T Bates (2002)  The long-term outcome of synchronous bilateral breast cancer is worse than metachronous or unilateral tumours.   Eur J Surg Oncol 28: 4. 388-391 Jun  
Abstract: AIM: There is uncertainty in the literature as to whether bilateral breast cancer carries a worse prognosis than unilateral disease because some studies suggest that the development of a second primary does not influence survival, while others report a decreased survival in patients suffering from bilateral disease. METHODS: A prospectively accrued and regularly validated database of 1945 patients with breast cancer treated in a district general hospital between 1963 and 1999 was analysed for clinical and pathological tumour characteristics including family history, grade, type of tumour, treatment and outcome. RESULTS: Five per cent of patients (92) suffered from metachronous and 43 (2%) from synchronous bilateral breast cancer. A family history of breast cancer was more common in patients with metachronous bilateral breast cancer (38%), compared with the unilateral group (15%) and the synchronous bilateral breast cancer group (17%) (chi(2)=22.9, P<0.001). Patients with synchronous bilateral breast cancer had a significantly worse overall survival when compared with those with metachronous bilateral or unilateral breast cancer (log-rank test chi(2)=6.1, P=0.047). CONCLUSION: Women with metachronous breast cancer were more likely to have positive family history, while those with synchronous bilateral breast cancer tend to have shorter survival when compared with those with unilateral breast cancer. Synchronous bilaterality is not, however, an independent risk factor on multivariate analysis.
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A R Carmichael, J M Dixon (2002)  Is lactation mastitis and shooting breast pain experienced by women during lactation caused by Candida albicans?   Breast 11: 1. 88-90 Feb  
Abstract: The evidence relating Candida albicans with deep breast pain suffered by some women during breast feeding is reviewed. There is little direct evidence to support the aetiological role of Candida albicans in this condition, and therefore the prescription of fluconazole (an antifungal drug) to lactating women with deep breast pain as suggested by a number of authors of studies on this subject cannot be justified unless as part of a clinical trial.
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2001
 
PMID 
A R Carmichael, D Johnston, M C Barker, R F Bury, J Boyce, H Sue-Ling (2001)  Gastric emptying after a new, more physiological anti-obesity operation: the Magenstrasse and Mill procedure.   Eur J Nucl Med 28: 9. 1379-1383 Sep  
Abstract: The Magenstrasse and Mill (M&M) procedure for obesity is designed to preserve normal gastric emptying mechanisms. The hypothesis investigated in this study was that gastric emptying would be normal after the M&M gastroplasty. Gastric emptying studies were performed using both liquid and solid test meals, in ten morbidly obese patients (MO group) and in 13 patients after the M&M procedure (MM group). Seven people of normal weight served as controls and were matched for age, sex and height to the M&M and MO groups. Three years after the M&M procedure, mean (SD) weight loss was 42 (19) kg, with a mean loss of excess weight of 58% (20%). Gastric emptying half-times (t 1/2) are expressed in minutes, as median values (25th and 75th percentiles). The t 1/2 for solids was 97 (85-110) min in the control group, 140 (86-220) min in the MO group and 79 (46-150) min in the MM group. Median gastric emptying for solids was 0.7% (0.6%-0.8%) per minute in the control group, 0.5% (0.3%-0.8%) in the MO group and 0.9% (0.4%-1.4%) in the M&M group. There were no statistically significant differences in the emptying times of the three groups. It is concluded that the M&M procedure achieves acceptable weight loss, while preserving gastric emptying mechanisms and thus minimising possible side-effects such as vomiting, dumping and diarrhoea, which are common complications of gastric bypass procedures.
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PMID 
A R Carmichael, D Johnston, R F King, H M Sue-Ling (2001)  Effects of the Magenstrasse and Mill operation for obesity on plasma leptin and insulin resistance.   Diabetes Obes Metab 3: 2. 99-103 Apr  
Abstract: BACKGROUND: We evaluated the effect of the Magenstrasse and Mill (M & M) operation--a new form of non-banded vertical gastroplasty-on weight loss, plasma leptin levels and insulin resistance. METHODS: Fasting plasma glucose, leptin and insulin levels were measured in 12 normal controls, 39 morbidly obese patients and 39 patients a median 3 years after the M & M procedure. Insulin resistance was calculated by the homeostasis model insulin resistance index. RESULTS: Body mass index mean (s.d.) decreased significantly (p < 0.0001), from 48(7) to 33(5) kg/m2, after the M & M procedure. Fasting plasma leptin concentration in the morbidly obese group was 37.9(15.4) ng/ml, significantly (p < 0.0001) higher than the control group (12.2(8.4)) and the M & M group (19.1(12.7)) ng/ml. Fasting plasma insulin concentrations were also significantly (p < 0.0001) higher in the morbidly obese group compared with than in the M & M group or in the control group: 35.5(22.3) mU/l, 15.5(7.1) mU/l and 13.6(3.4) mU/l, respectively. Insulin resistance was 9.6(7.2) in the morbidly obese group and 3.5(1.9) in the M & M group (p < 0.0001). CONCLUSION: This is one of the first studies to show that the decrease in insulin resistance after weight loss achieved by anti-obesity surgery is associated with significantly lower levels of plasma leptin.
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A R Carmichael, H M Sue-Ling, D Johnston (2001)  Quality of life after the Magenstrasse and Mill procedure for morbid obesity.   Obes Surg 11: 6. 708-715 Dec  
Abstract: BACKGROUND: The authors assessed the quality of life (QOL) of patients after the Magenstrasse and Mill (M-M) procedure for morbid obesity (MO) and compared this with the QOL of MO patients and non-obese controls. METHODS: Personal, postal and telephone questionnaire survey was completed by 82 patients after the M-M procedure, 35 MO patients and 20 normal controls. QOL was assessed by Short Form 36 (SF-36), Hospital Anxiety and Depression (HAD) scale, and obesity surgery related questionnaire. RESULTS: Physical, social and psychological well-being of patients was substantially better after the M-M compared with their MO counterparts. After the M-M procedure, patients were significantly less depressed but remained anxious when compared with morbidly obese patients. The majority of patients (88%) were pleased with the result of surgery. CONCLUSION: This study provides empirical evidence that the M-M procedure for MO leads to a substantially better QOL.
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2000
 
PMID 
P Carmichael, J Popoola, I John, P E Stevens, A R Carmichael (2000)  Assessment of quality of life in a single centre dialysis population using the KDQOL-SF questionnaire.   Qual Life Res 9: 2. 195-205 Mar  
Abstract: Health-related quality of life (HRQOL) is a valid marker of outcome for chronic dialysis therapy. A wide range of questionnaires are now available which assess different aspects of an individual's health. Appreciation of those factors that contribute to explaining HRQOL items remains poorly defined. The development of disease-specific questionnaires such as KDQOL-SF, should allow for such questions to be better answered. A cross-sectional analysis of our chronic dialysis population was made using the KDQOL-SF questionnaire. By multiple linear regression analysis demographic, clinical and dialysis-related factors were assessed for their contribution to the HRQOL in this population. The HRQOL of these patients was also compared against a general population sample. From a total of 190 chronic dialysis patients, 146 completed the KDQOL-SF questionnaire. The haemodialysis (HD) and peritoneal dialysis (PD) patients were similar with respect to most demographic, clinical and dialysis variables except for haemoglobin and albumin which were significantly (p < 0.05) greater in the peritoneal and haemodialysis populations respectively. Compared to the general population, the HRQOL of dialysis patients was impaired for all SF-36 subscales. Use of the disease-specific components of KDQOL-SF discriminated between dialysis modality for our dialysis population. Multiple linear regression analysis demonstrated that 27.5 to 42.7% of the variance in the SF-36 subscales could be explained. Satisfactory sleep, dialysis related symptoms, effect of kidney disease on lifestyle and burden of kidney disease were found to be the most important determinants of HRQOL for this population.
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1999
 
PMID 
A R Carmichael (1999)  Treatment for morbid obesity.   Postgrad Med J 75: 879. 7-12 Jan  
Abstract: There is no single unifying theory to explain the aetiology of obesity but several environmental factors, such as decreased physical activity and increased fat intake may contribute to its development in genetically predisposed individuals. Dietary and pharmacological treatments of morbid obesity have been proven to be unsuccessful. Modern surgical treatments have been shown to be effective in achieving significant weight loss with consequent reduction in morbidity. Despite the fact that surgical treatment of morbid obesity is the only therapeutic form that has stood the test of time, it still remains a crisis-driven form of therapy in the UK. It is probable that a better understanding of the aetiology and physiology of obesity may lead to the development of an effective pharmacological treatment of obesity in the future. However, until then, surgical treatment of morbid obesity should be considered as an effective and efficient way of treatment in selected cases.
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PMID 
P Carmichael, A R Carmichael (1999)  Atherosclerotic renal artery stenosis: from diagnosis to treatment.   Postgrad Med J 75: 887. 527-536 Sep  
Abstract: Renovascular hypertension represents a form of correctable hypertension and preventable renal failure. Such patients need to be identified early so that specific therapy can be instigated. Patient identification requires a high index of suspicion in patients with certain clinical features. Subsequent non-invasive imaging may result in angiography which is required for diagnostic purposes and for planning intervention. Correctable therapy takes one of two forms, namely percutaneous transluminal renal angioplasty, with or without stenting, or surgical revascularisation, together with modification of underlying risk factors.
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1995
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