Objective Vasopressor medications have traditionally been administered via central venous catheters (CVCs), primarily due to concerns of peripheral extravasation of vasoconstrictive medications. Recent studies have suggested that vasopressor administration via peripheral intravenous catheters (PiVCs) may be a feasible and safe alternative. This systematic review evaluates the safety of delivering vasopressor medications via PiVCs. Methods We performed a systematic review to assess the frequency of complications associated with the delivery of vasopressors via PiVCs. A literature search for prospective and retrospective studies of vasopressor infusions in adults was performed. We included studies of continuous infusions of vasopressor medications (noradrenaline, adrenaline, metaraminol, phenylephrine, dopamine and vasopressin) delivered via a PiVCs that included at least 20 patients. Data on patient factors, cannulation approach, monitoring protocols, vasopressor dosing and dilutions and adverse events were collected and summarised. Results Seven studies were identified that fulfilled the inclusion criteria, including 1382 patients. No study fulfilled all of the validity criteria. Noradrenaline was the most commonly administered agent (n = 702 episodes of administration), followed by phenylephrine (n = 546), dopamine (n = 108), metaraminol (n = 74) and vasopressin and adrenaline (<5 patients). Mean duration of infusion was 22 h (95% confidence interval [CI] 8–36 h). Extravasation occurred in 3.4% (95% CI 2.5–4.7%) of patients. There were no reported episodes of tissue necrosis or limb ischaemia. All extravasation events were successfully managed conservatively or with vasodilatory medications. Conclusions Reports of the administration of vasopressors via PiVCs, when given for a limited duration, under close observation, suggest that extravasation is uncommon and is unlikely to lead to major complications.

No abstract

People with chronic pain may benefit from the capacity to contact their thoughts and feelings from a perspective as a "separate observer," to see them as transient, and to experience them as cognitively "defused."

No abstract

Summary Background:  Severe hypophosphataemia associated with refeeding syndrome requires treatment with intravenous phosphate to prevent potentially life‐threatening complications. However, evidence for replacement regimens is limited and current regimens are complex and replace phosphate inadequately. Aim:  To assess the effectiveness and safety of 50 mmol intravenous phosphate infusion, given as a ‘Phosphates Polyfusor’, for the treatment of severe hypophosphataemia in refeeding syndrome. Methods:  Patients with refeeding syndrome and normal renal function received a Phosphates Polyfusor infusion for the treatment of severe hypophosphataemia (< 0.50 mmol/L). The outcome measures were serial serum phosphate, creatinine and calcium concentrations for 4 days following phosphate infusion and adverse events. Results:  Over 2 years, 30 patients were treated. Following treatment, 37% of cases had a normal serum phosphate concentration and 73% had a serum phosphate concentration of > 0.5 mmol/L within 24 h. Ten patients required more than one Phosphates Polyfusor infusion. Within 72 h, 93% of cases had achieved a serum phosphate concentration of ≥ 0.50 mmol/L. No patient developed renal failure. Three episodes of transient mild hyperphosphataemia were recorded. Four patients developed mild hypocalcaemia. Conclusions:  This is the largest published series of the use of intravenous phosphate for the treatment of severe hypophosphataemia (< 0.50 mmol/L), and is the most effective regimen described. All patients had refeeding syndrome and were managed on general wards.