Martin Perrig

Risk Factors Promoting Hypertensive Crises: Evidence From a Longitudinal Study

BACKGROUND Current knowledge about risk factors promoting hypertensive crisis originates from retrospective data. Therefore, potential risk factors of hypertensive crisis were assessed in a prospective longitudinal study. METHODS Eighty-nine patients of the medical outpatient unit at the University Hospital of Bern (Bern, Switzerland) with previously diagnosed hypertension participated in this study. At baseline, 33 potential risk factors were assessed. All patients were followed-up for the outcome of hypertensive crisis. Cox regression models were used to detect relationships between risk factors and hypertensive crisis (defined as acute rise of systolic blood pressure (BP) > or =200 mm Hg and/or diastolic BP > or =120 mm Hg). RESULTS The mean duration of follow-up was 1.6 +/- 0.3 years (range 1.0-2.4 years). Four patients (4.5%) were lost to follow-up. Thirteen patients (15.3%) experienced hypertensive crisis during follow-up. Several potential risk factors were significantly associated with hypertensive crisis: female sex, higher grades of obesity, the presence of a hypertensive or coronary heart disease, the presence of a somatoform disorder, a higher number of antihypertensive drugs, and nonadherence to medication. As measured by the hazard ratio, nonadherence was the most important factor associated with hypertensive crisis (hazard ratio 5.88, 95% confidence interval 1.59-21.77, P < 0.01). CONCLUSIONS This study identified several potential risk factors of hypertensive crisis. Results of this study are consistent with the hypothesis that improvement of medical adherence in antihypertensive therapy would help to prevent hypertensive crises. However, larger studies are needed to assess potential confounding, other risk factors and the possibility of interaction between predictors.

Management of patients during hunger strike and refeeding phase

OBJECTIVE Hunger strikers resuming nutritional intake may develop a life-threatening refeeding syndrome (RFS). Consequently, hunger strikers represent a core challenge for the medical staff. The objective of the study was to test the effectiveness and safety of evidence-based recommendations for prevention and management of RFS during the refeeding phase. METHODS This was a retrospective, observational data analysis of 37 consecutive, unselected cases of prisoners on a hunger strike during a 5-y period. The sample consisted of 37 cases representing 33 individual patients. RESULTS In seven cases (18.9%), the hunger strike was continued during the hospital stay, in 16 episodes (43.2%) cessation of the hunger strike occurred immediately after admission to the security ward, and in 14 episodes (37.9%) during hospital stay. In the refeed cases (n = 30), nutritional replenishment occurred orally, and in 25 (83.3%) micronutrients substitutions were made based on the recommendations. The gradual refeeding with fluid restriction occurred over 10 d. Uncomplicated dyselectrolytemia was documented in 12 cases (40%) within the refeeding phase. One case (3.3%) presented bilateral ankle edemas as a clinical manifestation of moderate RFS. Intensive medical treatment was not necessary and none of the patients died. Seven episodes of continued hunger strike were observed during the entire hospital stay without medical complications. CONCLUSIONS Our data suggested that seriousness and rate of medical complications during the refeeding phase can be kept at a minimum in a hunger strike population. This study supported use of recommendations to optimize risk management and to improve treatment quality and patient safety in this vulnerable population.

[Body-packer ; body-stuffer - a medical challenge]

Since the seventies, the practice of drug smuggling in the form of body packing has increased in the Western world. The goal of our study was to present an algorithm for the safe management of intracorporal drug transport based on clinical experience and current evidence. The retrospective study, conducted over the past four years in our hospital prison, analyzes and discusses the diagnostic and therapeutic concepts. Thirty-four patients hospitalized 37 times in a 48-month period were included. In 28 patients drug packages were identified. Only two patients suffered from serious complications. The study demonstrates that following a specifically designed management algorithm based on clinical experience and principles of evidence-based medicine can optimize risk management, improve quality assurance and patient safety.

Glucocorticoid treatment, immobility, and constipation are associated with nutritional risk

PurposeThe hypothesis of this clinical study was to determine whether glucocorticoid use and immobility were associated with in-hospital nutritional risk.MethodsOne hundred and one patients consecutively admitted to the medical wards were enrolled. Current medical conditions, symptoms, medical history, eating and drinking habits, diagnosis, laboratory findings, medications, and anthropometrics were recorded. The Nutrition Risk Score 2002 (NRS-2002) was used as a screening instrument to identify nutritional risk.ResultsThe results confirmed that glucocorticoid use and immobility are independently associated with nutritional risk determined by the NRS-2002. Constipation could be determined as an additional cofactor independently associated with nutritional risk.ConclusionsGlucocorticoid treatment, immobility, and constipation are associated with nutritional risk in a mixed hospitalized population. The presence of long-time glucocorticoid use, immobility, or constipation should alert the clinician to check for nutritional status, which is an important factor in mortality and morbidity.

Physicians’ attitudes toward, use of, and perceived barriers to clinical guidelines: a survey among Swiss physicians

Background Little is known about the attitudes toward, use of, and perceived barriers to clinical guidelines in Switzerland, a country with no national guideline agency. Moreover, there is no available data on the objective assessment of guideline knowledge in Switzerland. Therefore, we conducted a study at a large university’s Department of General Internal Medicine in Switzerland to assess physicians’ attitudes toward, use of, perceived barriers to, and knowledge of clinical guidelines. Participants and methods Ninety-six physicians (residents, n=78, and attendings, n=18) were invited to take part in a survey. Attitudes toward, self-reported use of, and barriers hindering adherence to the clinical guidelines were assessed using established scales and frameworks. Knowledge of the guidelines was objectively tested in a written assessment comprising of 14 multiple-choice and 3 short answer case-based questions. Results Fifty-five participants completed the survey (residents, n=42, and attendings, n=13; overall response rate 57%). Of these, 50 took part in the knowledge assessment (residents, n=37, and attendings, n=13; overall response rate 52%). Attitudes toward guidelines were favorable. They were considered to be a convenient source of advice (94% agreement), good educational tools (89% agreement), and likely to improve patient quality of care (91% agreement). Self-reported use of guidelines was limited, with only one-third reporting using guidelines often or very often. The main barriers to guideline adherence were identified as lack of guideline awareness and familiarity, applicability of existing guidelines to multimorbid patients, unfavorable guideline factors, and lack of time as well as inertia toward changing previous practice. In the assessment of guideline knowledge, the scores were rather modest (mean ± standard deviation: 60.5%±12.7% correct answers). Conclusion In general, this study found favorable physician attitudes toward clinical guidelines. However, several barriers hindering guideline implementation were identified. The importance of improving guideline implementation was supported by modest results in a guideline knowledge test.

Bilateral posterior ischaemic optic neuropathy after severe diabetic ketoacidosis, cardiopulmonary resuscitation and respiratory failure

A 44-year-old male European with type I diabetes mellitus fell into diabetic ketoacidosis. In the emergency room, he developed an episode of asystole and respiratory failure requiring one cycle of cardiopulmonary resuscitation and extracorporeal membrane oxygenation (ECMO). Waking up 7 days later, he presented a bilateral complete loss of vision. Ophthalmological examination including funduscopy on days 1 and 10, after extubation, showed bilateral large round pupils non-reactive to light and a normal fundus. Neuroimaging studies, including MRI and MRA of the brain, were all within normal limits. A lumbar puncture and comprehensive serological testing excluded an infectious or rheumatic cause. An empirical high-dose intravenous steroid treatment administered for 5 days had no effect on his vision. His eye examination at 1.5 months follow-up showed a normal fundus except for progressive bilateral optic nerve disc pallor, which pointed towards the diagnosis of a posterior ischaemic optic neuropathy.

Not to be taken lightly

A 78 year old patient with type 2 diabetes mellitus was hospitalized because of weakness and poor nutritional status. For several years, he suffered from an unintended weight loss and chronic, pulpy diarrhea. On examination, we found a severe loss of muscle and fat tissue as well as difficulty swallowing. An adequate nutritional therapy with combined parenteral and enteral nutrition was implemented under regular monitoring of electrolytes and volume status, under which the state of health improved noticeably, while steatorrhea improved under substitution of pancreatic enzymes.