Collaboration and entanglement: An actor-network theory analysis of team-based intraprofessional care for patients with advanced heart failure.

Despite calls for more interprofessional and intraprofessional team-based approaches in healthcare, we lack sufficient understanding of how this happens in the context of patient care teams. This multi-perspective, team-based interview study examined how medical teams negotiated collaborative tensions. From 2011 to 2013, 50 patients across five sites in three Canadian provinces were interviewed about their care experiences and were asked to identify members of their health care teams. Patient-identified team members were subsequently interviewed to form 50 "Team Sampling Units" (TSUs), consisting of 209 interviews with patients, caregivers and healthcare providers. Results are gathered from a focused analysis of 13 TSUs where intraprofessional collaborative tensions involved treating fluid overload, or edema, a common HF symptom. Drawing on actor-network theory (ANT), the analysis focused on intraprofessional collaboration between specialty care teams in cardiology and nephrology. The study found that despite a shared narrative of common purpose between cardiology teams and nephrology teams, fluid management tools and techniques formed sites of collaborative tension. In particular, care activities involved asynchronous clinical interpretations, geographically distributed specialist care, fragmented forms of communication, and uncertainty due to clinical complexity. Teams 'disentangled' fluid in order to focus on its physiological function and mobilisation. Teams also used distinct 'framings' of fluid management that created perceived collaborative tensions. This study advances collaborative entanglement as a conceptual framework for understanding, teaching, and potentially ameliorating some of the tensions that manifest during intraprofessional care for patients with complex, chronic disease.

DDAVP to prevent rapid correction in hyponatremia.

Correction of hyponatremia can be complicated by brisk free water diuresis with a rise in the serum sodium (s-Na) in excess of the generally accepted rate of 10-15 mmol/l/24 hours. We describe this complication and its treatment with desmopressin (dD-AVP), in a 56-year-old female with severe hyponatremia secondary to polydipsia and antidiuretic (ADH) activity. The patient developed a large free water diuresis with a markedly dilute urine (urine osmolality 61 mmol/kg) and a rise in the serum sodium of 19 mmol/l in 19 hours despite the addition of large volumes of free water intravenously and orally. To reduce the free water excretion, desmopressin (dD-AVP) 8 microg was given intravenously. This resulted in a rise in the urinary osmolality, a reduction in the urine volume, and a 2 mmol/l reduction in the serum sodium. Thereafter, the serum sodium rose 4 mmol/l in 24 hours. There were no neurological sequellae. In cases of appropriate but rapid correction of hyponatremia secondary to rapid free water diuresis, dD-AVP can safely reduce the free water excretion, slow the rate of correction of the serum sodium and simplify the fluid therapy of the patient.

Complementary health care services: a survey of general practitioners' views.

OBJECTIVE: To determine the referral practices, perceived usefulness, knowledge, prior training and desire for training of general practitioners (GPs) in Quebec with regard to complementary health care services such as acupuncture, chiropractic and hypnosis. DESIGN: Cross-sectional mail survey. SETTING: Province of Quebec. PARTICIPANTS: Random sample of 200 GPs. Of the 146 who responded, 25 were excluded because they were no longer in practice; this left 121 (83%). OUTCOME MEASURES: Self-reported referral practices for complementary health care services, perceived usefulness and self-assessed knowledge of such services, and prior training and desire for training in these services. RESULTS: Sixty percent (72/121) of the GPs knew at least one practitioner of a complementary health care service for referral; 59% (70/119) reported referring patients to physicians who practise such services and 68% (80/118) to nonmedical practitioners. At least one of the three services studied were regarded as having some use by 83% (101/121). Overall, self-reported knowledge was poor: the proportions of GPs who reported knowing a lot about acupuncture, chiropractic and hypnosis were 11% (13/121), 10% (12/121) and 8% (10/121) respectively. Prior training was also lacking: only 8% (9/118) of the GPs had received previous training in acupuncture, 2% (2/111) in chiropractic and 3% (3/103) in hypnosis. In all, 48% (57/118) indicated that they would like further training in at least one of the services studied, and 13% (16/121) indicated that they currently provided one service. CONCLUSIONS: Referral of patients by GPs to practitioners of complementary health care services is common in Quebec. Although self-assessed knowledge about such services is relatively poor, interest in learning more about them is high. These findings identify a demand for future educational initiatives.