Anastomotic leak rates after repair of mesenteric bucket-handle injuries: A multi-center retrospective cohort study

BACKGROUND

Primary aim was to assess the relative risk (RR) of anastomotic leak (AL) in intestinal bucket-handle (BH) compared to non-BH injury.

METHODS

Multi-center study comparing AL in BH from blunt trauma 2010-2021 compared to non-BH intestinal injuries. RR was calculated for small bowel and colonic injury using R.

RESULTS

AL occurred in 20/385 (5.2%) of BH vs. 4/225 (1.8%) of non-BH small intestine injury. AL was diagnosed 11.6 ± 5.6 days from index operation in small intestine BH and 9.7 ± 4.3 days in colonic BH. Adjusted RR for AL was 2.32 [0.77-6.95] for small intestinal and 4.83 [1.47-15.89] for colonic injuries. AL increased infections, ventilator days, ICU & total length of stay, reoperation, and readmission rates, although mortality was unchanged.

CONCLUSION

BH carries a significantly higher risk of AL, particularly in the colon, than other blunt intestinal injuries.

Rates and risk factors for anastomotic leak following blunt trauma-associated bucket handle intestinal injuries: a multicenter study

Objectives

The risk factors for anastomotic leak (AL) after resection and primary anastomosis for traumatic bucket handle injury (BHI) have not been previously defined. This multicenter study was conducted to address this knowledge gap.

Methods

This is a multicenter retrospective study on small intestine and colonic BHIs from blunt trauma between 2010 and 2021. Baseline patient characteristics, risk factors, presence of shock and transfusion, operative details, and clinical outcomes were compared using R.

Results

Data on 395 subjects were submitted by 12 trauma centers, of whom 33 (8.1%) patients developed AL. Baseline details were similar, except for a higher proportion of patients in the AL group who had medical comorbidities such as diabetes, hypertension, and obesity (60.6% vs. 37.3%, p=0.015). AL had higher rates of surgical site infections (13.4% vs. 5.3%, p=0.004) and organ space infections (65.2% vs. 11.7%, p<0.001), along with higher readmission and reoperation rates (48.4% vs. 9.1%, p<0.001, and 39.4% vs. 11.6%, p<0.001, respectively). There was no difference in intensive care unit length of stay or mortality (p>0.05). More patients with AL were discharged with an ostomy (69.7% vs. 7.3%, p<0.001), and the mean duration until ostomy reversal was 5.85±3 months (range 2-12.4 months). The risk of AL significantly increased when the initial operation was a damage control procedure, after adjusting for age, sex, injury severity, presence of one or more comorbidities, shock, transfusion of >6 units of packed red blood cells, and site of injury (adjusted RR=2.32 (1.13, 5.17)), none of which were independent risk factors in themselves.

Conclusion

Damage control surgery performed as the initial operation appears to double the risk of AL after intestinal BHI, even after controlling for other markers of injury severity.

Level of evidence

III.

THE VIABILITY OF THE PNEUMOCOCCUS AFTER DRYING: A STUDY OF ONE OF THE FACTORS IN PNEUMONIC INFECTION

I. In moist sputum kept in the dark at room temperatures the average life of the pneumococcus is eleven days, though considerable variations may be noted in different specimens of sputum. In the same sputum kept at o° C. the average life of the organism is thirty-five days. In sputum kept at room temperature and in a strong light the pneumococcus lives less than five days. II. In dried sputum (a) in the dark the pneumococcus lives on an average thirty-five days; (b) in diffuse light, thirty days; (c) in sunlight, less than four hours. III. In powdered sputum even when kept in the dark the death of the pneumococcus takes place in from one to four hours. When exposed to sunlight death occurs within an hour. IV. No important differences were noted in the life of the pneumococcus when dried on glass, tin, or wood. On cloth the life was usually slightly longer than on non-absorbing surfaces. V. Sprayed sputum particles remain in suspension for twenty-four hours, but all masses of a size sufficient to contain bacteria settle at a rate of about 40 cm. per hour. VI. When sputum containing pneumococci is sprayed the organisms rarely survive for more than an hour, and often die in less time. The substance upon which the particles fall makes but little difference in the life of the organism. On cloth a slight prolongation is occasionally noted, due perhaps to the slow drying. VII. The mucus of the sputum exerts a destructive action on the pneumococcus. VIII. Exposure of bacterial spray to sunlight while in suspension results in the destruction of the pneumococcus within half an hour.

Welsh women's comments about breast problems and the care given: a qualitative study in the community

The aim of this study was to undertake a systematic analysis, using qualitative software, of the free text comments from a postal survey exploring women's experiences of breast symptoms, their expectations of treatment, knowledge of breast cancer risk factors and perceptions of risk, in 34 group general practices in South Wales. The 959 women who returned the questionnaire, out of 1126 (response rate 85%), comprised 497 women who consulted their general practitioner (GP) with a new breast symptom during the baseline data collection period and 462 controls who had not. When the survey was conducted the researchers did not know whether these women had cancer or had previously been treated for it. One-third (33.1%) of those returning the survey (n = 318) wrote comments. Compared to the rest, they were significantly more likely to have consulted their GP for a new breast symptom and to have stayed on at school and/or gone on to more education or training. The majority wrote about their own experience of breast symptoms and/or the care received in primary and secondary settings. The general tone was factual and when evaluation took place positive comments were more frequent than negative ones. Nothing suggested that the respondents had been upset or made more anxious by the preceding questions on such a potentially sensitive topic. Free text comments gathered in surveys can provide valuable data if systematically analysed. Doctors, particularly GPs, can be reassured that more women in this community sample who expressed an opinion on care were positive. The negative comments, however, highlight issues that still need to be addressed in therapeutic relationships.

Pharmacokinetics and pharmacodynamics of glipizide after once-daily and divided doses

STUDY OBJECTIVE

To determine the pharmacokinetics and pharmacodynamics of glipizide given as a single, oral, 20-mg dose, versus three different divided-dose regimens totaling 20 mg each.

DESIGN

Randomized (in order of dosing regimens), open-label, crossover study.

SETTING

University medical center clinical research center.

PATIENTS

Six subjects with noninsulin-dependent diabetes mellitus.

INTERVENTIONS

Patients were studied on four separate occasions separated by at least 3 days. The divided-dose regimens were designed to simulate delayed absorption of the drug over 2, 4, and 8 hours. Blood samples for measuring glipizide, glucose, and C-peptide were obtained over 24 hours.

MEASUREMENTS AND MAIN RESULTS

Glipizide peak concentrations and time to peak differed significantly with the dosage schedule; when smaller doses were administered more often, peak concentrations were lower and more delayed. The mean values for area under the curve from time zero to infinity (range 7240.7-10,001.8 micrograms.L-1.hr-1; 16,226-22,414 nmol.L-1.hr-1), clearance (0.44-0.64 ml.min-1.kg-1; 0.07-0.11 ml.sec-1.kg-1), post-distribution phase volume (0.17-0.25 L.kg-1), and half-life (4.2-5.4 hrs) were not significantly different among regimens. Neither morning fasting glucose nor maximum and minimum times and concentrations of glucose and C-peptide over 24 hours were statistically different among regimens. Similarly, no significant differences were found in area under the concentration-time curve for glucose and C-peptide measured over 2.5 hours after each meal and from time zero to 24 hours.

CONCLUSIONS

The timing of a glipizide dose in relation to a meal and simulated delayed or prolonged absorption appear to have little influence on the drug's pharmacodynamic effects.

Lack of interaction between glipizide and co-trimoxazole

To identify the effects of co-trimoxazole on the elimination and disposition kinetics of glipizide, eight healthy male volunteers were studied in an unblinded, randomized, cross-over trial with two phases (no treatment or co-trimoxazole 160/800 mg twice a day). During each phase, subjects were treated at home for 7 days with one of the treatment regimens, followed by a 24-hour hospitalization for a single-dose challenge with 10-mg oral glipizide and detailed blood studies. A 7-day washout period was interspersed between the phases. Pharmacokinetic and pharmacodynamic parameters were determined and compared using the Student's t-test for paired observations. Glipizide area under the curve (AUC), clearance, and half life for treatment and control phases were 5758 +/- 1874 versus 5176 +/- 1505 micrograms/L/hour (P = .21), 0.41 +/- 0.15 versus 0.45 +/- 0.14 mL/min/kg (P = .27), and 5.13 +/- 2.10 versus 3.95 +/- 1.37 hours (P = .04), respectively. Twenty-four-hour glucose AUCs for treatment and control phases were 112.24 +/- 8.76 versus 114.86 +/- 11.98 mmol/L/hour (P = .55), respectively. The only parameter reaching statistical significance was glipizide half life, but the difference is of doubtful clinical significance because of difficulty in identifying a clear elimination phase in several subjects. It is concluded that co-trimoxazole administration did not significantly alter glipizide disposition and elimination kinetics in this study population.

Serum immunoreactive insulin response during prolonged glucose infusions in nondiabetic and diabetic humans

Prolonged intravenous glucose infusions were employed to study pancreatic islet cell reserve, measured by responses in serum immunoreactive insulin levels. A continuous intravenous glucose load (6 gm./kg./24 hrs.) was administered for five to seven days to four nondiabetic subjects and five maturity-onset diabetic patients. The nondiabetics assimilated all the glucose, but the diabetics developed marked hyperglycemia and glucosuria. Immunoreactive insulin levels were similar in the two groups, and insulin response to eating breakfast daily during the infusions was at least as high in the diabetics as in the nondiabetics. During these infusions, there was no evidence that the diabetic patients differed from the nondiabetic controls by showing progressive decreases in serum immunoreactive insulin responses.

CANCER AND THE PUBLIC HEALTH

This article by Doctor Wood is especially interesting to health workers and indeed to all readers of the Journal on account of the fact that it treats in a concise manner some of the fundamental points of importance known at the present time regarding this devastating disease. It is particularly suggestive as it indicates various ways in which state and local health authorities can direct their activities so that the people may be informed of the fact that early cancer is curable in most instances.