Ashu Sara Mathai

Acute aluminium phosphide poisoning: Can we predict mortality?

In India, acute aluminium phosphide poisoning (AAlPP) is a serious health care problem. This study aimed to determine the characteristics of AAlPP and the predictors of mortality at the time of patients’ admission. We studied consecutive admissions of patients with AAlPP admitted to the intensive care unit (ICU) between November 2004 and October 2006. We noted 38 parameters at admission to the hospital and the ICU and compared survivor and non-survivor groups. A total of 27 patients were enrolled comprising5 females and 22 males and the mean ingested dose of poison was 0.75 ± 0.745 grams. Hypotension was noted in 24 patients (89%) at admission and electrocardiogram abnormalities were noted in 13 patients (48.1%). The mean pH on admission was 7.20 ± 0.14 and the mean bicarbonate concentration was 12.32 ± 5.45 mmol/ L. The mortality from AAlPP was 59.3%. We found the following factors to be associated with an increased risk of mortality: a serum creatinine concentration of more than 1.0 mg % (P = 0.01), pH value less than 7.2 (P = 0.014), serum bicarbonate value less than 15 mmol/L (P = 0.048), need for mechanical ventilation (P = 0.045), need for vasoactive drugs like dobutamine (P = 0.027) and nor adrenaline (P = 0.048) and a low APACHE II score at admission (P = 0.019). AAlPP causes high mortality primarily due to early haemodynamic failure and multi-organ dysfunction

Efficacy of a multimodal intervention strategy in improving hand hygiene compliance in a tertiary level intensive care unit

Context: The role of hand hygiene in preventing health care associated infections (HCAIs) has been clearly established. However, compliance rates remain poor among health care personnel. Aims: a) To investigate the health care workers’ hand hygiene compliance rates in the intensive care unit (ICU), b) to assess reasons for non-compliance and c) to study the efficacy of a multimodal intervention strategy at improving compliance. Settings: A mixed medical–surgical ICU of a tertiary level hospital. Design: A before–after prospective, observational, intervention study. Materials and Methods: All health care personnel who came in contact with patients in the ICU were observed for their hand hygiene compliance before and after a multimodal intervention strategy (education, posters, verbal reminders and easy availability of products). A self-report questionnaire was also circulated to assess perceptions regarding compliance. Statistical analysis was done using χ2 test or Fisher exact test (Epi info software). Results: Hand hygiene compliance among medical personnel working in the ICU was 26% and the most common reason cited for non-compliance was lack of time (37%). The overall compliance improved significantly following the intervention to 57.36% (P<0.000). All health care worker groups showed significant improvements: staff nurses (21.48–61.59%, P<0.0000), nursing students (9.86–33.33%, P<0.0000), resident trainees (21.62–60.71%, P<0.0000), visiting consultants (22–57.14%, P=0.0001), physiotherapists (70–75.95%, P=0.413) and paramedical staff (10.71–55.45%, P< 0.0000). Conclusions: Hand hygiene compliance among health care workers in the ICU is poor; however, intervention strategies, such as the one used, can be useful in improving the compliance rates significantly.

Antibiotic prescription patterns at admission into a tertiary level intensive care unit in Northern India

Context: An audit of antibiotic prescribing patterns is an important indicator of the quality and standard of clinical practice. Aims: To study the (1) antibiotic prescription and consumption patterns at admission into the intensive care unit (ICU); (2) average costs of antibiotics prescribed; and (3) correlation of antibiotic usage and the costs incurred with age, severity of illness, and diagnosis. Settings and Design: A 13-bedded tertiary level ICU. A prospective, observational audit. Materials and Methods: Two hundred consecutive prescriptions on patients admitted to the ICU from August to October, 2008, were audited. The total number of drugs and antibiotics, the class, dose, route, and cost of antibiotics were noted and the Defined Daily Dose/100 bed-days (DDD/100 bed-days) of the 10 most frequently prescribed antibiotics were calculated. Statistical analysis used: Univariate analysis was performed using Epi Info software (version 8.0). Results: A total of 1246 drugs and 418 antibiotics were prescribed in the 200 patients studied, that is, an average of 6.23 (± SD 2.73) drugs/prescription and 2.09 (± SD 1.27) antibiotics/prescription. Antibiotics were prescribed on 190 patients (95%) at admission. There was a significant correlation between the number of patients prescribed three or more antibiotics and mortality rates (53% nonsurvivors vs. 33.5% survivors (P = 0.015). The average cost of the antibiotics was Rupees 1995.08 (± SD 2099.99) per patient and antibiotics expenditure accounted for 73.2% of the total drug costs. Conclusions: Antibiotics are commonly prescribed to most ICU patients at admission and contribute significantly to the total drug costs. Antibiotic restriction policies and a multidisciplinary effort to reduce usage are urgently required.

Incidence and attributable costs of ventilator-associated pneumonia (VAP) in a tertiary-level intensive care unit (ICU) in northern India

BACKGROUND Ventilator-associated pneumonia (VAP) is the most common nosocomial infection acquired by patients in the intensive care unit (ICU). However, the economic effects of such infections remain unclear particularly in developing countries. METHODS Patients who were mechanically ventilated for more than 48 h in the ICU were studied for the occurrence of VAP. Total drug costs and hospital costs were noted, and attributable costs were calculated after adjusting for potential confounders. RESULTS Ninety-five (38%) patients who were ventilated for more than 48 h developed VAP, which resulted in an incidence of 40.1 VAP infections/1000 mechanical ventilation days. The patients with VAP experienced significantly longer hospital stay [21 (IQ = 14-33) days versus 11 (IQ = 6-18) days, P < 0.0001)] and incurred greater hospital costs [USD

Non-invasive ventilation in the postoperative period: Is there a role?

6250.92 (IQ = 3525.39-9667.57) versus

Ventilator-associated pneumonia: A persistent healthcare problem in Indian Intensive Care Units!

2598.84 (IQ = 1644.33-4477.65), P < 0.0001]. Multiple regression analysis revealed that the cost-driving factors in our study population were the occurrence of VAP infections (P < 0.0001) and the duration of hospital stay (P < 0.0001). The attributable cost of VAP infection was calculated to be USD

Mechanical and infectious complications of central venous catheterizations in a tertiary-level intensive care unit in northern India

5200 (95% CI = 3245-7152). CONCLUSION We conclude that VAP significantly increases the costs of treatment in low-income developing countries. This study highlights the need to implement urgent measures to reduce the incidence of this disease in ICUs.

Acute poisonings admitted to a tertiary level intensive care unit in northern India: patient profile and outcomes

Non-invasive positive pressure ventilation or non-invasive ventilation (NIV) has emerged as a simpler and safer alternative to invasive mechanical ventilation in patients developing acute postoperative respiratory failure. The benefits of NIV as compared to intubation and mechanical ventilation include lower complications, shorter duration of hospital stay, reduced morbidity, lesser cost of treatment and even reduced mortality rates. However, its use may not be uniformly applicable in all patient groups. This article reviews the indications, contraindications and evidence supporting the use of NIV in individual patient groups in the postoperative period. The anaesthesiologist needs to recognise the subset of patients most likely to benefit from NIV therapy so as to apply it most effectively. It is equally important to promptly identify signs of failure of NIV therapy and be prepared to initiate alternate ways of respiratory support. The author searched PubMed and Ovid MEDLINE, without date restrictions. Search terms included Non-invasive ventilation, postoperative and respiratory failure. Foreign literature was included, though only articles with English translation were used.

Fatal airway obstruction following arterial trauma during internal jugular venous cannulation

Background: Ventilator-associated pneumonia (VAP) is the most common nosocomial infection acquired by patients in the Intensive Care Unit (ICU). However, there are scarce clinical data, particularly from Indian ICUs on the occurrence of this infection. Aims: To collect data on the incidence, microbiological profile, and outcomes of patients with VAP. Settings and Design: Tertiary level, medical-surgical ICU; prospective, observational study. Subjects and Methods: All patients who were mechanically ventilated for >48 h in the ICU during the study were enrolled. VAP was diagnosed according to the Centre for Disease Control (CDC) criteria. Results: A total of 95 (38%) patients developed VAP infections, an incidence of 40.1 VAP infections/1000 mechanical ventilation days. These were predominantly caused by Gram-negative organisms, especially the Acinetobacter species (58 isolates, 53.2%). Many of the VAP-causing isolates (27.3%) demonstrated multidrug resistance. Patients with VAP infections experienced a significantly longer ICU stay (13 days [Interquartile Range (IQ) range = 10-21] vs. 6 days [IQ = 4-8], P < 0.0001) and total hospital stay (21 days [IQ = 14-33] vs. 11 days [IQ = 6-18], P < 0.0001). While the overall mortality rates were similar between patients with or without VAP infections, (68.4% vs. 61.3%, P = 0.200), on subgroup analysis, elderly patients (>60 years) and those with higher Acute Physiology and Chronic Health Evaluation II scores at admission had significantly greater mortality rates if they acquired a VAP infection (P = 0.010). Conclusions: VAP continues to be a major threat to patients who are admitted for mechanical ventilation into the critical care unit, emphasizing the urgent need for infection control measures.

Preanesthetic sedation of preschool children: Comparison of intranasal midazolam versus oral promethazine

Background: Central venous catheters (CVC) are associated with mechanical, infectious and thrombotic complications. Aims: To study (a) the incidence of mechanical and infectious complications of CVC insertions and to compare, (b) the rates of these complications between the internal jugular venous (IJV) and the subclavian venous (SCV) accesses. Settings and Design: An adult intensive care unit of a tertiary care hospital. Prospective, observational study. Methods: All landmark-based CVC insertions performed between 1st October 2008 and 30th September 2009 were prospectively studied for mechanical and infectious complications. Statistical Analysis: SPSS software for Windows, Version SPSS 16.0, and Epi Info (3.5.1) software. Results: Four hundred and eighty central venous catheterizations were studied (IJV route, 241 and SCV route, 239). Mechanical complications occurred in 86 patients (17.9%, bleeding complications-48, catheter-related complications-27 and pneumothorax-11). The IJV route was associated with a significantly higher incidence of bleeding complications (P=0.009). Forty-seven patients had infectious complications (9.79%), like exit site infections (n=17), catheter tip infections (n=22) and catheter-related bloodstream infections (CRBSIs) (n=8). The risks of infectious complications increased significantly if the CVC was in situ for longer than 7 days (P=0.009), especially with IJV cannulae. The incidence density of CVC tip infections was 7.67 per 1000 catheter days and of CRBSIs was 2.79 per 1000 catheter days. Conclusions: Bleeding complications occurred more frequently with IJV insertions and infectious complications occurred more commonly in cannulae that were left in situ for longer than 7 days.