Calcium Abnormalities in Hospitalized Patients:

Pamidronate for Hypercalcemia in Critically Ill Surgical Patients

INTRODUCTION

Hypercalcemia in critically ill patients is associated with an increased severity of illness and mortality that becomes worse as the levels rise. Pamidronate was evaluated for the treatment of hypercalcemia in critically ill surgical patients.

METHODS

This retrospective study evaluated 30 critically ill surgical patients who developed hypercalcemia (ionized calcium (iCa)≥1.25 mmol/L) while in the surgical ICUs over three years. Patients were case-matched 1:1 for age and severity of illness.

RESULTS

In the 30 patients with an overall Acute Physiology and Chronic Health Evaluation (APACHE) II of 22±9, mechanical ventilation was required in 27/30 (90%) and hemodialysis in 11/30 (37%). Within four days of pamidronate, iCa declined from a mean of 1.46±0.14 to 1.15±0.14 mmol/L, p=0.004; however, the blood urea nitrogen (BUN) and serum creatinine (SCr) increased significantly in patients with renal impairment. An iCa≥1.35 mmol/L increased mortality from 0% to 26%.

CONCLUSIONS

Hypercalcemia in critically ill surgical patients is associated with increased severity of illness. Over a period of four days, pamidronate reduced iCa levels at ~0.08 mmol/L/day and corrected 80% of the hypercalcemic patients; however, it may cause further renal dysfunction.

Evaluation of knowledge and practices about administration and regulations of high alert medications among hospital pharmacists in Pakistan: findings and implications

BACKGROUND

A death of a nine months old child in Pakistan following the rapid administration of potassium chloride raised serious concerns on the awareness of appropriate use of high alert medications (HAMs) among healthcare professionals (HCPs). This study aimed to ascertain HAMs-related knowledge among hospital pharmacists in Pakistan.

METHODOLOGY

A cross-sectional study using exponential non-discriminative snowball sampling was conducted among hospital pharmacists in healthcare settings in Punjab, Pakistan. A validated study tool was used to determine knowledge on administration, regulation, and practices related to the HAMs. Barriers to conducting HAMs training in the hospitals were assessed from an open-ended question. All quantitative data were analyzed using SPSS 22.0 while the content analysis was performed on the qualitative data.

RESULTS

A total of 202 hospital pharmacists were included in the study. The mean knowledge score for HAMs administration and regulation were 5.86 ± 1.89 (95% CI 5.60-6.12) and 7.25 ± 1.70 (95% CI 7.02-7.49), respectively. Approximately half of the respondents (49.5%) achieved scores ≥ 70%, demonstrating sufficient knowledge of HAMs. In the multivariable-adjusted model, increasing age and work experience were found to be the positive predictors of good HAMs knowledge. The mean practice score was 36.42 ± 1.97 (95% CI 34.05-38.77), with 62.4% of pharmacists following good HAMs-related practices. We identified several barriers to conducting HAMs training through qualitative analysis. These barriers included lack of knowledge, poor attitude and behavior of medical and paramedical staff, false beliefs, lack of active support by hospital administration, lack of cooperation between HCPs, lack of opportunities, heavy workload, insufficient human resources, financial constraints, and lack of motivation.

CONCLUSIONS

A significant proportion of the hospital pharmacists had unsatisfactory knowledge and practices of HAMs. These findings underscore that training on HAMs should be conducted periodically as a part of hospital-based pharmacy education to maximize drug safety.

Correlation between hypocalcemia and acute exacerbation of chronic obstructive pulmonary disease in the elderly

Introduction: Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is an important disease of hospitalized elderly patients, who often have electrolyte imbalances. This study was performed to analyze total serum calcium levels in elderly patients with AECOPD and identify the correlation between hypocalcemia and AECOPD. Methods: 153 elderly patients with AECOPD served as the observation group, and 115 healthy elderly people undergoing physical examinations served as the control group. Differences in the corrected serum calcium, albumin (ALB), and neutrophil/lymphocyte ratio (NLR) were analyzed between the observation and control groups before and after treatment. The incidence of hypocalcemia was compared among patients at different ages and with different pulmonary function classifications before treatment. The relationship between hypocalcemia and respiratory infection was analyzed. Differences in the pretreatment NLR, ALB, logarithm of the serum C-reactive protein level (LogCRP), and hospital stay were compared between patients with and without hypocalcemia. Results: The corrected serum calcium level (P < 0.001), NLR (P = 0.001) and albumin level (P < 0.001) were significantly different among the pretreatment group, post-treatment group, and control group. The serum calcium level, LogCRP, and NLR were significantly lower after than before treatment (P < 0.05). Significant differences in the incidence of hypocalcemia were found among patients of different ages (P = 0.002). The respiratory infection rate (P < 0.001), hospital stay (P < 0.001), NLR (P = 0.007), and LogCRP (P < 0.001) was higher in patients with than without hypocalcemia. However, the albumin level was lower in patients with than without hypocalcemia (P < 0.001). Conclusions: In elderly patients with AECOPD, hypocalcemia may be related to the disease progression, respiratory infection rate, and hospital stay of patients with AECOPD.

Phosphorus and calcium: a review for the adult nutrition support clinician

Phosphorus (P) and calcium (Ca) serve vital roles in the human body and are essential components of nutrition support therapy. Regulation of P and regulation of Ca in the body are closely interrelated, and P and Ca homeostasis can be affected by several factors, including disease states, clinical condition, severity of illness, and medications. Nutrition support clinicians must understand these factors to prevent and treat P and Ca disorders in patients receiving nutrition support therapy. This review provides an overview of P and Ca for the adult nutrition support clinician, with some emphasis on the hospitalized inpatient.

Ionized hypocalcemia is an early event and is associated with organ dysfunction in children admitted to the intensive care unit

PURPOSE

The purpose was to determine the frequency and risk factors of ionized hypocalcemia and to evaluate this disturbance as a predictor of mortality in a pediatric intensive care unit (ICU).

MATERIALS AND METHODS

In a prospective cohort study, 337 children admitted consecutively to an ICU were monitored regarding serum ionized calcium concentrations during the first 10 days of admission. The following variables were analyzed as independent of hypocalcemia: age; malnutrition; sepsis; Pediatric Index of Mortality 2; first 3 days organ dysfunction score (Pediatric Logistic Organ Dysfunction); and use of steroids, furosemide, and anticonvulsants. Hypocalcemia was defined as a serum ionized calcium concentration less than 1.15 mmol/L.

RESULTS

The rate of hypocalcemia was 77.15%. In a multivariate model, higher Pediatric Logistic Organ Dysfunction scores during the first 3 days of ICU stay were independently associated with hypocalcemia (odds ratio, 2.24; 95% confidence interval, 1.23-4.07; P=.008). Medications associated with hypocalcemia were furosemide (dose≥2 mg/[kg d]) and methylprednisolone (dose≥2 mg/[kg d]). No significant association was found between hypocalcemia and 10-day mortality.

CONCLUSIONS

Ionized hypocalcemia is common during the ICU stay, particularly in the first 3 days of admission. This disturbance was not found to be a predictor of mortality, but it is independently associated with more severe organ dysfunction.

Acute kidney injury, sodium disorders, and hypercalcemia in the aging kidney: diagnostic and therapeutic management strategies in emergency medicine

This article summarizes the current literature regarding the structural and functional changes of the aging kidney and describes how these changes make the older patient more susceptible to acute kidney injury and fluid and electrolyte disorders. It discusses the clinical manifestations, evaluation, and management of hyponatremia and shows how the management of hypernatremia in geriatric patients involves addressing the underlying cause and safely correcting the hypernatremia. The current literature regarding evaluation and management of hypercalcemia in older patients is summarized. The management of severe hypercalcemia is discussed in detail. The evaluation and management of acute kidney injury is described.

A case of multiple myeloma coexisting with primary hyperparathyroidism and review of the literature

Hypercalcemia is a common medical problem with an estimated prevalence of 15% among hospitalized patients. Multiple myeloma (MM) and primary hyperparathyroidism (PHPT) are among the most common causes of hypercalcemia but coexistence of both pathologic processes in a patient is an extremely rare phenomenon. In this paper we have discussed a patient presenting with this rare phenomenon. We have also provided a comprehensive review of the scientific literature published on codiagnosis of MM and PHPT.