Colonoscopy in the octogenarian population: diagnostic and survival outcomes from a large series of patients.

OBJECTIVE: Our aim was to audit the diagnostic and survival outcomes of colonoscopy in octogenarians and to determine if it confers any survival benefit. METHODS: A review of a prospectively maintained database over a two year period between October 2005 and September 2007 was undertaken. Data on numerous outcome variables and survival were collected and analysed. Categorical variables were compared using the Chi-square test. Kaplan-Meier survival curves were constructed and log rank test were used to compare survival curves. RESULTS: There were 1905 patients, of which 289 (15%) were over the age of 80 years. Caecal intubation was significantly lower in octogenarians when compared with young patients (239/289, (82%) vs. 1411/1616 (88%), p = 0.025). The most common reason for failure to intubate the caecum was presence of stenosing pathology in distal bowel (octogenarians 46% (23 out of 50 failed intubations) vs. young 23% (49 out of 205 failed intubations), p = 0.002). A greater proportion of octogenarians had poor bowel preparation when compared with the young (20% vs. 13%, p = 0.001). Significantly more pathology was detected in octogenarians (72% vs. 59%, p = 0.001). Forty-four (15.2%) octogenarians were found to have malignancy. Of these, only 23 (52%) underwent subsequent surgery. Median survival of octogenarians who had surgery was not statistically better (31 (IQR 12-38) months vs. 16 (IQR 5-31) months, p = 0.10) than those who did not. CONCLUSION: Colonoscopy is safe in octogenarians and provides a high yield. Our results suggest that it does not appear to result in any survival benefit. However, to establish this, further research with larger cohorts and longer follow-up periods would be required.

Could pre-mortem computerised tomography scans reduce the need for coroner's post-mortem examinations?

INTRODUCTION: Post-mortem examinations may result in considerable distress to the bereaved family. This audit was undertaken to examine whether computerised tomography (CT) scanning prior to death might reduce the need for post-mortems without compromising the accuracy of recording the cause of death. SUBJECTS AND METHODS: The case notes of 100 consecutive patients who had a coroner's post-mortem, because the cause of death was unknown, were reviewed by four senior clinicians. Along with the likely cause of death, the clinicians gave their opinion as to whether a CT scan would have enabled certification of death without the need for a post-mortem. Concordance between the post-mortem findings and the clinical events surrounding death was explored. RESULTS: It would have been possible to perform a pre-mortem CT scan on 90 of the 100 patients. A pre-mortem CT scan would have given the cause of death in 59 (66%) of these. In 30 patients, the cause of death established by the post-mortem was at variance with the clinical events surrounding death and clinically relevant information, such as recent surgery, was not recorded on the death certificates of 26 patients. CONCLUSIONS: The use of a pre-mortem CT scan and involvement of senior clinicians in the process of establishing cause of death will improve the accuracy and may obviate the need for a post-mortem in some patients. However, if a post-mortem is needed, the clinical notes should always be available for the pathologists and a senior member of the patient's team should attend the post-mortem to help accurate death certification.

Changes in superior mesenteric artery blood flow after oral, enteral, and parenteral feeding in humans.

OBJECTIVE: Alterations in splanchnic blood flow cause gut ischemia and may predispose to gut-derived sepsis. Increases in superior mesenteric artery (SMA) blood flow occur follow the oral ingestion of food, but the effects of enteral nutrition (EN) on splanchnic perfusion are poorly defined and those of parenteral nutrition (PN) are unknown in humans. The aim of this study was to investigate changes in SMA flow in healthy controls and patients receiving adjuvant nutrition. DESIGN: Qualitative before-after study. SETTING: Intensive care and general wards at Scarborough Hospital, Scarborough, United Kingdom. PATIENTS: Fourteen healthy volunteers and 20 consecutive hemodynamically stable patients receiving adjuvant nutrition. INTERVENTIONS: Oral, EN, or PN after an overnight fast. MEASUREMENTS AND MAIN RESULTS: Duplex ultrasonography was used to assess SMA flow after an overnight fast. Subjects were then rescanned 3 hrs later after commencement of the appropriate test feed so that postprandial flows could be determined. Of the 20 patients recruited, 10 were receiving EN (120 kcal) and 10 PN (175 kcal). Of the 14 volunteers, three received no feed before their second scan (controls), six received an oral meal (530 kcal), and five received EN (120 kcal). Changes in SMA flow within groups were assessed. The control (fasting) volunteers showed no change between the two scans (p = 1.000). All subjects fed intraluminally demonstrated significant increases in postprandial SMA blood flow. Conversely, all patients fed parenterally showed decreased postprandial SMA flows with a median (interquartile range) fasting SMA flow of 14.5 (4.8-24.8) mL/sec, which decreased to 6.1 (2.4-9.2) mL/sec postprandially (p = 0.013). CONCLUSIONS: Splanchnic flow is modulated by the route of feeding. The clinical significance of these findings requires further investigation as they may be important in the management of the critically ill patient, particularly in those with cardiovascular instability or any patient predisposed to gut ischemia.

Occipital condyle syndrome: self diagnosed.

We present the case of a 71-year-old man who presented to us with unilateral lower motor neuron hypoglossal palsy along with the characteristic occipital headache. He himself forwarded a paper on occipital condyle syndrome to the clinician who initially reviewed him. Later the patient underwent a series of investigations that confirmed the diagnosis of underlying prostatic carcinoma with widespread metastasis to bones including the base of the skull. Seven months after the diagnosis he is doing well, his headache is much better and the tongue deviation is stable. He was initially treated with tapering doses of dexamethasone and is currently receiving the depo gonadorelin analogue leuprorelin.