Verimed Africa

Verimed Africa Pty (Ltd) was established in July 2010 to act as an independent pathology/radiology risk manager for medical funders and administrators. Verimed Africa has developed an IT solution which verifies the correctness of pathology/radiology accounts.

logo


We Are Health Fund Risk Managers

Pathology/Radiology Bill Review

red tick Correct code/codes
red tick Correct combination of codes
red tick Correct value of codes
red tick Correct technology used
red tick Correct administration code combination

Services

red tickReduce Spend on Pathology/Radiology Services
red tickRationalised Utilisation
red tickInter-Laboratory Comparisons
red tickPreferred Provider Consultation
red tickCapitation Arrangement Advice
red tick Preferred Provider Consultation
red tick Capitation Arrangement Advice
red tickRisk share Arrangements
red tickICD10 - NHRPL X-WALK
red tickMany other determinants out of our developing database

About the director Chris Adams

Chris Adams is a highly qualified and experienced pathology laboratory manager with 18 years experience with a major pathology practice in Johannesburg. Prior to joining the private sector he was employed at the South African Institute for Medical Research. In July 2010, due to a perceived lack of confidence in the medium term future of the provider sector of the industry, he established Verimed Africa (Pty) Ltd. The formation of the company was a result of a strategic decision in respect of an available market niche that had been obvious for some time. During his employment he was involved in all of the major development programs. These generally encompassed expansion of service and involvement at various times with all of the major practices and laboratory groups in Sub-Saharan Africa. Our Sub-Saharan Africa market knowledge and pathology/radiology service strategic information is extensive and up-to-date. Adams is a member of the SAMLTS and is a Medical Technologist - Clinical

More information


Advice to patients

Advice to Patients about Pathology Testing and X-Rays

Medical inflation in Sub-Saharan Africa is consistently higher than the general levels of inflation in the rest of the economy. Although pathology tests and X-Rays are essential part of modern medicine there are steps that you can take to insure that you are correctly billed only for the tests your doctor specifically requests

What you can do about Pathology tests, X-Rays and their costs:

Remember that excess and unnecessary testing increases the account. This account is either your responsibility or that of your medical aid. The costs if borne by the medical aid are eventually paid for by you via increased contributions.

When your Doctor orders procedures - Ask him/her how much this should cost - remember it’s your money! Ask if all of these tests are necessary?

Ask if your Doctor if he/she receives any financial advantage as a result of this referral?

Ask why the Doctor prefers a certain Laboratory or Radiology practice?

There are Medical Technologist laboratories and Radiographer run X-Ray practices available in Southern Africa that charge significantly less for procedures. In addition these practices are not allowed to perform "shopping lists of tests", these profiles increase the costs of procedures.

Have you had these tests recently, if so must they be repeated? When you are referred from a GP to a specialist ask the GP to send all relevant results with the referral. This may prevent unnecessary and costly repeats. Point out to the specialist that you have previously had these tests performed.

Ask the practice to give you a copy of the request form when they take the blood or other specimen for your tests or do the X-Ray. Some pathology and radiology practices add or substitute different procedures to those that your Doctor ordered.

If the account arrives and the amount is different from that which your Doctor indicated then ask your Doctor to explain the difference. If necessary the Doctor should phone the laboratory to confirm the account.

Tumour Markers

Tumour Markers and Screening for Cancer


Screening and early diagnosis of cancer have intuitive appeal to anyone that has dealt with patients with incurable cancer. Screening tests include fecal occult blood, mammography, cervical Pap smears and blood tumour markers. Blood tests for numerous tumour markers are commercially available and their use has recently been comprehensively reviewed.

The ease of obtaining a sample and the spectrum of organ related tumour markers available to the clinician, has led to a surge in tumour marker usage that may be inappropriate.

The only blood tumour marker that is accepted by most authorities to have any role in screening for malignancy is the PSA test. This is however not accepted without controversy and Law even states, "…the one certainty about prostate specific antigen testing is that it causes harm."

The role of tumour markers such as CA 15-3, CA19-9, CA125, CEA etc. for cancer screening are even more tenuous. By way of a specific example, CA15-3 is touted by some as a "test for breast cancer" and has the following performance characteristics : "… 5.5% of 1050 normal subjects…..23% of patients with primary breast cancer……69% with metastatic breast cancer……other malignancies, including pancreatic (80%)….benign breast diseases (16%)…should not be used to diagnose primary breast cancer…most useful in monitoring therapy and disease progression…."

It is generally accepted that , with the exception of PSA, none of the other blood tumour markers has any role in the screening, or diagnosis of malignancy. An additional factor to consider is the potential harm inflicted on patients by false reassurance (77% of primary breast cancer will be missed by CA15-3) and the emotional distress as well as unnecessary further testing on 5.5% of patients without any malignancy (false positives). This scenario holds true for any of the other blood tumour markers mentioned above.

In conclusion there is no evidence to support the routine use of blood tumour markers as a screening or diagnostic aid. The inappropriate use of blood tumour markers must be actively discouraged.

Dr CJ Pretorius MB ChB, FC Path (Chem) SA

1.Sturgeon C, Practice Guidelines for Tumour Marker Use in the Clinic (Review), Clinical Chemistry, 48:1151 - 59, 2002 2.Law M, Screening without evidence of efficacy (Editorial), BMJ, 328:301 - 2, 2004 3.Burtis CA Ashwood ER, Tietz Textbook of Clinical Chemistry, 2nd edition; 916 - 7


Diabetes Mellitus

Laboratory monitoring of Diabetes Millitus


Monitoring of Diabetes Mellitus - the role of HbA1c


Terminology:

DM Diabetes Mellitus GH Glycated haemoglobin HbA1c Haemoglobin A1c DCCT Diabetes Control and Complications Trial NGSP National Glycohemoglobin Standardization Program HPLC High Performance Liquid Chromatography

Introduction:

Diabetes Mellitus (DM) is a chronic, systemic disease characterised by disturbed carbohydrate metabolism, micro vascular complications (retina and kidney) and macro vascular complications (coronary and carotid arteries). To put the costs associated with DM into perspective, it has been reported that the annual per capita healthcare cost for a diabetic is 4 times higher than for a non-diabetic person. The costs attributable to DM arise because of both acute and chronic complications. It has been conclusively established that micro vascular complications can be decreased in diabetics who are intensively managed, compared to a control group who are less well controlled.

Glycated haemoglobin is established as the laboratory parameter that reflects the degree of control of a diabetic person. Although glycated haemoglobin (GH) and Haemoglobin A1c (HbA1c) are often used interchangeably, it should be pointed out that HbA1c is a component of GH. The HbA1c level in a person reflects an integrated assessment of the mean glycaemic control over the average red cell life span for an individual.

HbA1c was the main laboratory parameter used to reflect glycaemic control in the DCCT1 study. Subsequently HbA1c levels exceeding 8.1% was shown to be associated with a dramatic rise in microalbuminuria and it was recommended that by controlling HbA1c levels below 8.1%, the incidence of diabetic nephropathy could be reduced. Recently exiting evidence that macro vascular complications are reduced in well-controlled diabetics compared to poorly controlled diabetics was published . The thickness of the carotid artery intima-media, a reflection of atherosclerosis, was related to HbA1c level. Good control of DM (measured by normal HbA1c levels) led to a reduced progression of disease.

Laboratory aspects of measuring glycated haemoglobin:

The irreversible binding of glucose molecules to haemoglobin molecules causes an alteration of the charge, chemical binding property and immunological characteristics of the haemoglobin molecule. Ion exchange chromatography, affinity chromatography and immuno-assay methodology can be used to separate the glycated haemoglobin from the non-glycated haemoglobin. The results of the GH are expressed as a percentage of total haemoglobin. HbA1c refers to a particular fraction of GH and most assays reports are standardised to HbA1c irrespective of whether the total GH or HbA1c fraction is measured directly.

The degree of glycation of haemoglobin is a function of the average glucose concentration and the life span of the red cells. In haemolytic conditions the red cell life span is shortened and the GH is lower for any integrated glucose concentration than in a comparable individual with normal (120 days) red cell survival.

In a comprehensive review on laboratory monitoring of diabetic patients, under the auspices of the National Association of Clinical Biochemistry and the American Diabetes Association, it is strongly recommended that assays for GH (HbA1c) must be approved by a special task group (NGSP) and that the results must be related to DCCT equivalent results. Diagnostic manufacturers submit their assays on a yearly basis for approval and the results are published (http://www.missouri.edu/~diabetes/ngsp.html) - a copy of a list of NGSP certified methods are attached as a supplement to this document)

The bulk of methodologies approved by the NGSP are chromatographical and immunological methods. The chromatographical methods are mostly performed on dedicated, automated high performance liquid chromatography (HPLC) analysers. The immunological assays are performed by turbidimetric methodology on routine laboratory analysers. Comparative evaluations of methodology studies show no significant difference in the performance of automated HPLC and immunological assays.

Clinical aspects of measuring glycated haemoglobin5:

HbA1c measurements are the recommended assay for monitoring glycaemic control. Other glycated proteins such as Fructosamine (glycated albumin) are not recommended for routine monitoring.

HbA1c assays are recommended twice a year for well-controlled diabetics and quarterly (4 times a year) in poorly controlled diabetics.

HbA1c is not recommended for screening or diagnosis of diabetes mellitus. Plasma glucose is the sole diagnostic criterion for diabetes mellitus.

In persons with decreased red cell survival (acute blood loss or abnormal haemoglobin) the HbA1c values will be falsely lowered regardless of the method used to measure HbA1c (HPLC or immunological). In populations with a high incidence of abnormal haemoglobins an alternative glycated protein assay such as Fructosamine should be considered .

Discussion:

The assertion that HPLC represents the "gold standard" for measuring HbA1c and therefore that HPLC should replace immunological assays for HbA1c is not apparent from a review of the literature. What is clear is that both HPLC and immunological methodologies should be standardised to a traceable international reference standard, such as NGSP certified methodology.

The immunological assays that feature in the NGSP certification list are in common use in South African laboratories. These assays are generally billed under code 4182 (Turbidimetric or nepeholometric methodology) at a 2004 NRPL tariff of R 55.10.

While the HPLC methodology is undoubtedly acceptable as an alternative to immunological assays on technical grounds, it is questionable whether the HPLC methodology should be reimbursed at a higher rate, as an acceptable alternative methodology at a lower price is available. If the principle of technological up coding is accepted by medical aid funders, it can be confidently predicted that this will be the start of an avalanche.

Recommendations:


1. HbA1c methods should be NGSP certified.

2. Reimbursement should be at the level of the lowest cost NGSP certified HbA1c method - in this case code 4182.

3. The principle of technological up coding should be resisted.

Technological up coding - where a more expensive methodology to measure an analyte is used although no clinical benefit is apparent.

1. American Diabetes Association. Economic consequences of diabetes mellitus in the US in 1997. Diabetes Care. 1998;21:296 - 308

2. Diabetes Control and Complications Trial Research Group. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin dependant diabetes, NEJM. 1993; 329;977 - 986

3. Krolewski SA et al. Glycoslated hem